/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-trans.wvr.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788
[2021-06-01 18:45:59,023 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-06-01 18:45:59,024 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
[2021-06-01 18:45:59,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring...
[2021-06-01 18:45:59,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values
[2021-06-01 18:45:59,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values
[2021-06-01 18:45:59,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values
[2021-06-01 18:45:59,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values
[2021-06-01 18:45:59,052 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values
[2021-06-01 18:45:59,053 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values
[2021-06-01 18:45:59,054 INFO L181 SettingsManager]: Resetting Sifa preferences to default values
[2021-06-01 18:45:59,054 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring...
[2021-06-01 18:45:59,055 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values
[2021-06-01 18:45:59,056 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values
[2021-06-01 18:45:59,056 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values
[2021-06-01 18:45:59,057 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values
[2021-06-01 18:45:59,058 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values
[2021-06-01 18:45:59,058 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-06-01 18:45:59,060 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
[2021-06-01 18:45:59,061 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values
[2021-06-01 18:45:59,062 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values
[2021-06-01 18:45:59,066 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-01 18:45:59,067 INFO L181 SettingsManager]: Resetting Referee preferences to default values
[2021-06-01 18:45:59,068 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values
[2021-06-01 18:45:59,070 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring...
[2021-06-01 18:45:59,070 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring...
[2021-06-01 18:45:59,070 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values
[2021-06-01 18:45:59,071 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values
[2021-06-01 18:45:59,071 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values
[2021-06-01 18:45:59,072 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-06-01 18:45:59,072 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
[2021-06-01 18:45:59,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values
[2021-06-01 18:45:59,073 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values
[2021-06-01 18:45:59,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values
[2021-06-01 18:45:59,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring...
[2021-06-01 18:45:59,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values
[2021-06-01 18:45:59,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring...
[2021-06-01 18:45:59,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring...
[2021-06-01 18:45:59,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
[2021-06-01 18:45:59,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values
[2021-06-01 18:45:59,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2021-06-01 18:45:59,083 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf
[2021-06-01 18:45:59,116 INFO L113 SettingsManager]: Loading preferences was successful
[2021-06-01 18:45:59,117 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-01 18:45:59,117 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-01 18:45:59,117 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-01 18:45:59,118 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-01 18:45:59,118 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-06-01 18:45:59,118 INFO L138 SettingsManager]: * Use SBE=true
[2021-06-01 18:45:59,118 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-01 18:45:59,118 INFO L138 SettingsManager]: * sizeof long=4
[2021-06-01 18:45:59,118 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * sizeof long double=12
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-06-01 18:45:59,119 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-06-01 18:45:59,120 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 18:45:59,120 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-06-01 18:45:59,120 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-01 18:45:59,121 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-06-01 18:45:59,121 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-01 18:45:59,121 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-06-01 18:45:59,121 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-01 18:45:59,121 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-01 18:45:59,388 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-01 18:45:59,408 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-01 18:45:59,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-01 18:45:59,411 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-06-01 18:45:59,413 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2021-06-01 18:45:59,414 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-trans.wvr.bpl
[2021-06-01 18:45:59,414 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/word-trans.wvr.bpl'
[2021-06-01 18:45:59,455 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-01 18:45:59,456 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-06-01 18:45:59,457 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-01 18:45:59,457 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-01 18:45:59,457 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-01 18:45:59,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,484 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-01 18:45:59,485 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-01 18:45:59,485 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-01 18:45:59,485 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-06-01 18:45:59,490 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,490 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,491 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,495 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,497 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
[2021-06-01 18:45:59,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-01 18:45:59,505 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-01 18:45:59,505 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-06-01 18:45:59,505 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-06-01 18:45:59,507 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/1) ...
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 18:45:59,569 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2021-06-01 18:45:59,569 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-06-01 18:45:59,569 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-06-01 18:45:59,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2021-06-01 18:45:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-06-01 18:45:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-06-01 18:45:59,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-06-01 18:45:59,570 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-01 18:45:59,570 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-01 18:45:59,570 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2021-06-01 18:45:59,571 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2021-06-01 18:45:59,571 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2021-06-01 18:45:59,571 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2021-06-01 18:46:00,058 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-01 18:46:00,058 INFO L299 CfgBuilder]: Removed 3 assume(true) statements.
[2021-06-01 18:46:00,060 INFO L202 PluginConnector]: Adding new model word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 06:46:00 BoogieIcfgContainer
[2021-06-01 18:46:00,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-01 18:46:00,061 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-01 18:46:00,061 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-06-01 18:46:00,063 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-06-01 18:46:00,063 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:45:59" (1/2) ...
[2021-06-01 18:46:00,064 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fc073af and model type word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 06:46:00, skipping insertion in model container
[2021-06-01 18:46:00,064 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 06:46:00" (2/2) ...
[2021-06-01 18:46:00,065 INFO L111 eAbstractionObserver]: Analyzing ICFG word-trans.wvr.bpl
[2021-06-01 18:46:00,069 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-01 18:46:00,069 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-01 18:46:00,070 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-01 18:46:00,070 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-01 18:46:00,125 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2021-06-01 18:46:00,144 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2021-06-01 18:46:00,171 INFO L378 AbstractCegarLoop]: Interprodecural is true
[2021-06-01 18:46:00,172 INFO L379 AbstractCegarLoop]: Hoare is false
[2021-06-01 18:46:00,172 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-01 18:46:00,172 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-01 18:46:00,172 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-01 18:46:00,172 INFO L383 AbstractCegarLoop]: Difference is false
[2021-06-01 18:46:00,172 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-01 18:46:00,172 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-01 18:46:00,179 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 32 places, 28 transitions, 80 flow
[2021-06-01 18:46:00,205 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 110 states, 108 states have (on average 3.4814814814814814) internal successors, (376), 109 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:00,207 INFO L276 IsEmpty]: Start isEmpty. Operand has 110 states, 108 states have (on average 3.4814814814814814) internal successors, (376), 109 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:00,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:00,218 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:00,218 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:00,219 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:00,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:00,224 INFO L82 PathProgramCache]: Analyzing trace with hash -200100504, now seen corresponding path program 1 times
[2021-06-01 18:46:00,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:00,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [437225385]
[2021-06-01 18:46:00,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:00,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:00,479 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:00,480 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:00,480 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [437225385]
[2021-06-01 18:46:00,480 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [437225385] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:00,481 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:00,481 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:00,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1700166651]
[2021-06-01 18:46:00,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:00,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:00,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:00,502 INFO L87 Difference]: Start difference. First operand has 110 states, 108 states have (on average 3.4814814814814814) internal successors, (376), 109 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:00,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:00,674 INFO L93 Difference]: Finished difference Result 230 states and 687 transitions.
[2021-06-01 18:46:00,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:00,676 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:00,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:00,691 INFO L225 Difference]: With dead ends: 230
[2021-06-01 18:46:00,691 INFO L226 Difference]: Without dead ends: 215
[2021-06-01 18:46:00,692 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 88.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:00,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2021-06-01 18:46:00,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 126.
[2021-06-01 18:46:00,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 125 states have (on average 3.368) internal successors, (421), 125 states have internal predecessors, (421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 421 transitions.
[2021-06-01 18:46:00,755 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 421 transitions. Word has length 14
[2021-06-01 18:46:00,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:00,756 INFO L482 AbstractCegarLoop]: Abstraction has 126 states and 421 transitions.
[2021-06-01 18:46:00,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:00,757 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 421 transitions.
[2021-06-01 18:46:00,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:00,759 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:00,759 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:00,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-01 18:46:00,760 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:00,762 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:00,763 INFO L82 PathProgramCache]: Analyzing trace with hash -393107442, now seen corresponding path program 2 times
[2021-06-01 18:46:00,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:00,763 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371083062]
[2021-06-01 18:46:00,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:00,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:00,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:00,878 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:00,878 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371083062]
[2021-06-01 18:46:00,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371083062] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:00,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:00,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:00,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620597590]
[2021-06-01 18:46:00,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:00,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:00,881 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:00,881 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:00,882 INFO L87 Difference]: Start difference. First operand 126 states and 421 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,000 INFO L93 Difference]: Finished difference Result 257 states and 779 transitions.
[2021-06-01 18:46:01,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,001 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:01,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,005 INFO L225 Difference]: With dead ends: 257
[2021-06-01 18:46:01,005 INFO L226 Difference]: Without dead ends: 242
[2021-06-01 18:46:01,006 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 66.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states.
[2021-06-01 18:46:01,040 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 132.
[2021-06-01 18:46:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 132 states, 131 states have (on average 3.312977099236641) internal successors, (434), 131 states have internal predecessors, (434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132 states to 132 states and 434 transitions.
[2021-06-01 18:46:01,042 INFO L78 Accepts]: Start accepts. Automaton has 132 states and 434 transitions. Word has length 14
[2021-06-01 18:46:01,042 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,042 INFO L482 AbstractCegarLoop]: Abstraction has 132 states and 434 transitions.
[2021-06-01 18:46:01,042 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,042 INFO L276 IsEmpty]: Start isEmpty. Operand 132 states and 434 transitions.
[2021-06-01 18:46:01,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:01,044 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,044 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,044 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1
[2021-06-01 18:46:01,044 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,045 INFO L82 PathProgramCache]: Analyzing trace with hash 463457742, now seen corresponding path program 3 times
[2021-06-01 18:46:01,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968763625]
[2021-06-01 18:46:01,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [968763625]
[2021-06-01 18:46:01,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [968763625] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549518706]
[2021-06-01 18:46:01,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,150 INFO L87 Difference]: Start difference. First operand 132 states and 434 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,235 INFO L93 Difference]: Finished difference Result 244 states and 710 transitions.
[2021-06-01 18:46:01,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,238 INFO L225 Difference]: With dead ends: 244
[2021-06-01 18:46:01,240 INFO L226 Difference]: Without dead ends: 229
[2021-06-01 18:46:01,241 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states.
[2021-06-01 18:46:01,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 136.
[2021-06-01 18:46:01,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 136 states, 135 states have (on average 3.3333333333333335) internal successors, (450), 135 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 450 transitions.
[2021-06-01 18:46:01,260 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 450 transitions. Word has length 14
[2021-06-01 18:46:01,260 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,260 INFO L482 AbstractCegarLoop]: Abstraction has 136 states and 450 transitions.
[2021-06-01 18:46:01,260 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,260 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 450 transitions.
[2021-06-01 18:46:01,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:01,264 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,264 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,264 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-06-01 18:46:01,264 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,265 INFO L82 PathProgramCache]: Analyzing trace with hash 332136738, now seen corresponding path program 4 times
[2021-06-01 18:46:01,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,266 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475280901]
[2021-06-01 18:46:01,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,336 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,336 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,337 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475280901]
[2021-06-01 18:46:01,337 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475280901] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,337 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,337 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,338 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212002189]
[2021-06-01 18:46:01,338 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,339 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,340 INFO L87 Difference]: Start difference. First operand 136 states and 450 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,436 INFO L93 Difference]: Finished difference Result 251 states and 743 transitions.
[2021-06-01 18:46:01,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,437 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:01,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,438 INFO L225 Difference]: With dead ends: 251
[2021-06-01 18:46:01,439 INFO L226 Difference]: Without dead ends: 236
[2021-06-01 18:46:01,439 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 53.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2021-06-01 18:46:01,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 140.
[2021-06-01 18:46:01,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 139 states have (on average 3.2949640287769784) internal successors, (458), 139 states have internal predecessors, (458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 458 transitions.
[2021-06-01 18:46:01,447 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 458 transitions. Word has length 14
[2021-06-01 18:46:01,448 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,448 INFO L482 AbstractCegarLoop]: Abstraction has 140 states and 458 transitions.
[2021-06-01 18:46:01,448 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,448 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 458 transitions.
[2021-06-01 18:46:01,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:01,449 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,449 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3
[2021-06-01 18:46:01,449 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,450 INFO L82 PathProgramCache]: Analyzing trace with hash -515835448, now seen corresponding path program 5 times
[2021-06-01 18:46:01,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,451 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724974403]
[2021-06-01 18:46:01,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,513 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,513 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724974403]
[2021-06-01 18:46:01,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724974403] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,515 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492170337]
[2021-06-01 18:46:01,515 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,515 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,516 INFO L87 Difference]: Start difference. First operand 140 states and 458 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,607 INFO L93 Difference]: Finished difference Result 279 states and 867 transitions.
[2021-06-01 18:46:01,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,608 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:01,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,610 INFO L225 Difference]: With dead ends: 279
[2021-06-01 18:46:01,610 INFO L226 Difference]: Without dead ends: 264
[2021-06-01 18:46:01,610 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2021-06-01 18:46:01,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 142.
[2021-06-01 18:46:01,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 3.3120567375886525) internal successors, (467), 141 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 467 transitions.
[2021-06-01 18:46:01,617 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 467 transitions. Word has length 14
[2021-06-01 18:46:01,618 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,618 INFO L482 AbstractCegarLoop]: Abstraction has 142 states and 467 transitions.
[2021-06-01 18:46:01,618 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,618 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 467 transitions.
[2021-06-01 18:46:01,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15
[2021-06-01 18:46:01,619 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,620 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,620 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4
[2021-06-01 18:46:01,620 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,620 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,620 INFO L82 PathProgramCache]: Analyzing trace with hash -1214544498, now seen corresponding path program 6 times
[2021-06-01 18:46:01,621 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,621 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767449848]
[2021-06-01 18:46:01,621 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,667 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767449848]
[2021-06-01 18:46:01,667 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767449848] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,667 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,667 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,667 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2015362739]
[2021-06-01 18:46:01,668 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,668 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,668 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,669 INFO L87 Difference]: Start difference. First operand 142 states and 467 transitions. Second operand has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,754 INFO L93 Difference]: Finished difference Result 270 states and 831 transitions.
[2021-06-01 18:46:01,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,754 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14
[2021-06-01 18:46:01,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,756 INFO L225 Difference]: With dead ends: 270
[2021-06-01 18:46:01,756 INFO L226 Difference]: Without dead ends: 255
[2021-06-01 18:46:01,756 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.7ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2021-06-01 18:46:01,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 142.
[2021-06-01 18:46:01,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 141 states have (on average 3.3120567375886525) internal successors, (467), 141 states have internal predecessors, (467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 467 transitions.
[2021-06-01 18:46:01,761 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 467 transitions. Word has length 14
[2021-06-01 18:46:01,762 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,762 INFO L482 AbstractCegarLoop]: Abstraction has 142 states and 467 transitions.
[2021-06-01 18:46:01,762 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,762 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 467 transitions.
[2021-06-01 18:46:01,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:01,762 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,763 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,763 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-06-01 18:46:01,763 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,763 INFO L82 PathProgramCache]: Analyzing trace with hash -1927039172, now seen corresponding path program 1 times
[2021-06-01 18:46:01,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,764 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504330579]
[2021-06-01 18:46:01,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,814 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,814 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504330579]
[2021-06-01 18:46:01,814 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504330579] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453588961]
[2021-06-01 18:46:01,815 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,815 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,816 INFO L87 Difference]: Start difference. First operand 142 states and 467 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:01,888 INFO L93 Difference]: Finished difference Result 280 states and 843 transitions.
[2021-06-01 18:46:01,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:01,888 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:01,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:01,890 INFO L225 Difference]: With dead ends: 280
[2021-06-01 18:46:01,890 INFO L226 Difference]: Without dead ends: 259
[2021-06-01 18:46:01,890 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 61.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:01,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states.
[2021-06-01 18:46:01,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 147.
[2021-06-01 18:46:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 3.3219178082191783) internal successors, (485), 146 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 485 transitions.
[2021-06-01 18:46:01,896 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 485 transitions. Word has length 15
[2021-06-01 18:46:01,897 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:01,897 INFO L482 AbstractCegarLoop]: Abstraction has 147 states and 485 transitions.
[2021-06-01 18:46:01,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:01,897 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 485 transitions.
[2021-06-01 18:46:01,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:01,897 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:01,898 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:01,898 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-06-01 18:46:01,898 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:01,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:01,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1938853291, now seen corresponding path program 1 times
[2021-06-01 18:46:01,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:01,899 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [285709326]
[2021-06-01 18:46:01,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:01,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:01,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:01,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [285709326]
[2021-06-01 18:46:01,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [285709326] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:01,950 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:01,950 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:01,950 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641627677]
[2021-06-01 18:46:01,950 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:01,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:01,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:01,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:01,951 INFO L87 Difference]: Start difference. First operand 147 states and 485 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,028 INFO L93 Difference]: Finished difference Result 262 states and 767 transitions.
[2021-06-01 18:46:02,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,029 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,030 INFO L225 Difference]: With dead ends: 262
[2021-06-01 18:46:02,030 INFO L226 Difference]: Without dead ends: 229
[2021-06-01 18:46:02,031 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 58.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states.
[2021-06-01 18:46:02,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 147.
[2021-06-01 18:46:02,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 147 states, 146 states have (on average 3.287671232876712) internal successors, (480), 146 states have internal predecessors, (480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 147 states to 147 states and 480 transitions.
[2021-06-01 18:46:02,036 INFO L78 Accepts]: Start accepts. Automaton has 147 states and 480 transitions. Word has length 15
[2021-06-01 18:46:02,036 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,036 INFO L482 AbstractCegarLoop]: Abstraction has 147 states and 480 transitions.
[2021-06-01 18:46:02,036 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,036 INFO L276 IsEmpty]: Start isEmpty. Operand 147 states and 480 transitions.
[2021-06-01 18:46:02,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,037 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,037 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-06-01 18:46:02,037 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,038 INFO L82 PathProgramCache]: Analyzing trace with hash 1727583463, now seen corresponding path program 2 times
[2021-06-01 18:46:02,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803895603]
[2021-06-01 18:46:02,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803895603]
[2021-06-01 18:46:02,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803895603] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246403342]
[2021-06-01 18:46:02,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,082 INFO L87 Difference]: Start difference. First operand 147 states and 480 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,149 INFO L93 Difference]: Finished difference Result 278 states and 838 transitions.
[2021-06-01 18:46:02,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,151 INFO L225 Difference]: With dead ends: 278
[2021-06-01 18:46:02,151 INFO L226 Difference]: Without dead ends: 256
[2021-06-01 18:46:02,152 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 54.8ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states.
[2021-06-01 18:46:02,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 150.
[2021-06-01 18:46:02,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 3.295302013422819) internal successors, (491), 149 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 491 transitions.
[2021-06-01 18:46:02,159 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 491 transitions. Word has length 15
[2021-06-01 18:46:02,159 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,160 INFO L482 AbstractCegarLoop]: Abstraction has 150 states and 491 transitions.
[2021-06-01 18:46:02,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,160 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 491 transitions.
[2021-06-01 18:46:02,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,160 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,160 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-06-01 18:46:02,161 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,162 INFO L82 PathProgramCache]: Analyzing trace with hash -258187012, now seen corresponding path program 2 times
[2021-06-01 18:46:02,162 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [587988199]
[2021-06-01 18:46:02,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,217 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,217 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [587988199]
[2021-06-01 18:46:02,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [587988199] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,218 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298307986]
[2021-06-01 18:46:02,218 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,218 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,219 INFO L87 Difference]: Start difference. First operand 150 states and 491 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,294 INFO L93 Difference]: Finished difference Result 281 states and 840 transitions.
[2021-06-01 18:46:02,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,294 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,301 INFO L225 Difference]: With dead ends: 281
[2021-06-01 18:46:02,301 INFO L226 Difference]: Without dead ends: 254
[2021-06-01 18:46:02,301 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 57.7ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states.
[2021-06-01 18:46:02,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 150.
[2021-06-01 18:46:02,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 3.2751677852348995) internal successors, (488), 149 states have internal predecessors, (488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 488 transitions.
[2021-06-01 18:46:02,307 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 488 transitions. Word has length 15
[2021-06-01 18:46:02,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,307 INFO L482 AbstractCegarLoop]: Abstraction has 150 states and 488 transitions.
[2021-06-01 18:46:02,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,307 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 488 transitions.
[2021-06-01 18:46:02,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,308 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,308 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-06-01 18:46:02,308 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,309 INFO L82 PathProgramCache]: Analyzing trace with hash -294876135, now seen corresponding path program 1 times
[2021-06-01 18:46:02,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [828674944]
[2021-06-01 18:46:02,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,363 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,363 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [828674944]
[2021-06-01 18:46:02,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [828674944] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746099292]
[2021-06-01 18:46:02,363 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,363 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,364 INFO L87 Difference]: Start difference. First operand 150 states and 488 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,427 INFO L93 Difference]: Finished difference Result 281 states and 835 transitions.
[2021-06-01 18:46:02,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,427 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,429 INFO L225 Difference]: With dead ends: 281
[2021-06-01 18:46:02,429 INFO L226 Difference]: Without dead ends: 262
[2021-06-01 18:46:02,430 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 33.9ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states.
[2021-06-01 18:46:02,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 154.
[2021-06-01 18:46:02,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 3.281045751633987) internal successors, (502), 153 states have internal predecessors, (502), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 502 transitions.
[2021-06-01 18:46:02,436 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 502 transitions. Word has length 15
[2021-06-01 18:46:02,436 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,436 INFO L482 AbstractCegarLoop]: Abstraction has 154 states and 502 transitions.
[2021-06-01 18:46:02,436 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,436 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 502 transitions.
[2021-06-01 18:46:02,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,437 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,437 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,438 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-06-01 18:46:02,438 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,438 INFO L82 PathProgramCache]: Analyzing trace with hash -487883073, now seen corresponding path program 2 times
[2021-06-01 18:46:02,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,438 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808097396]
[2021-06-01 18:46:02,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,490 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,491 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,491 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808097396]
[2021-06-01 18:46:02,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808097396] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634364173]
[2021-06-01 18:46:02,491 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,491 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,492 INFO L87 Difference]: Start difference. First operand 154 states and 502 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,565 INFO L93 Difference]: Finished difference Result 373 states and 1108 transitions.
[2021-06-01 18:46:02,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:02,565 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,567 INFO L225 Difference]: With dead ends: 373
[2021-06-01 18:46:02,567 INFO L226 Difference]: Without dead ends: 354
[2021-06-01 18:46:02,568 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 27.1ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 354 states.
[2021-06-01 18:46:02,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 354 to 156.
[2021-06-01 18:46:02,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 3.2838709677419353) internal successors, (509), 155 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 509 transitions.
[2021-06-01 18:46:02,574 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 509 transitions. Word has length 15
[2021-06-01 18:46:02,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,574 INFO L482 AbstractCegarLoop]: Abstraction has 156 states and 509 transitions.
[2021-06-01 18:46:02,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,574 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 509 transitions.
[2021-06-01 18:46:02,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,575 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,575 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2021-06-01 18:46:02,575 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,576 INFO L82 PathProgramCache]: Analyzing trace with hash -473139912, now seen corresponding path program 3 times
[2021-06-01 18:46:02,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222236453]
[2021-06-01 18:46:02,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222236453]
[2021-06-01 18:46:02,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222236453] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,602 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,602 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362617548]
[2021-06-01 18:46:02,603 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,603 INFO L87 Difference]: Start difference. First operand 156 states and 509 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,666 INFO L93 Difference]: Finished difference Result 298 states and 879 transitions.
[2021-06-01 18:46:02,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,673 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,675 INFO L225 Difference]: With dead ends: 298
[2021-06-01 18:46:02,675 INFO L226 Difference]: Without dead ends: 277
[2021-06-01 18:46:02,675 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 26.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states.
[2021-06-01 18:46:02,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 156.
[2021-06-01 18:46:02,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 155 states have (on average 3.2838709677419353) internal successors, (509), 155 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 509 transitions.
[2021-06-01 18:46:02,681 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 509 transitions. Word has length 15
[2021-06-01 18:46:02,681 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,681 INFO L482 AbstractCegarLoop]: Abstraction has 156 states and 509 transitions.
[2021-06-01 18:46:02,681 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,681 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 509 transitions.
[2021-06-01 18:46:02,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,682 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,682 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,682 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12
[2021-06-01 18:46:02,682 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,683 INFO L82 PathProgramCache]: Analyzing trace with hash -1293754188, now seen corresponding path program 4 times
[2021-06-01 18:46:02,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,683 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153921236]
[2021-06-01 18:46:02,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,705 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,705 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153921236]
[2021-06-01 18:46:02,705 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153921236] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,705 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,705 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700494583]
[2021-06-01 18:46:02,706 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,706 INFO L87 Difference]: Start difference. First operand 156 states and 509 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,787 INFO L93 Difference]: Finished difference Result 353 states and 1040 transitions.
[2021-06-01 18:46:02,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:02,788 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,789 INFO L225 Difference]: With dead ends: 353
[2021-06-01 18:46:02,789 INFO L226 Difference]: Without dead ends: 332
[2021-06-01 18:46:02,790 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states.
[2021-06-01 18:46:02,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 154.
[2021-06-01 18:46:02,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154 states, 153 states have (on average 3.2679738562091503) internal successors, (500), 153 states have internal predecessors, (500), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 500 transitions.
[2021-06-01 18:46:02,797 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 500 transitions. Word has length 15
[2021-06-01 18:46:02,797 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,797 INFO L482 AbstractCegarLoop]: Abstraction has 154 states and 500 transitions.
[2021-06-01 18:46:02,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,797 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 500 transitions.
[2021-06-01 18:46:02,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,798 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,798 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,798 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2021-06-01 18:46:02,798 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1451583151, now seen corresponding path program 3 times
[2021-06-01 18:46:02,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738945221]
[2021-06-01 18:46:02,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738945221]
[2021-06-01 18:46:02,836 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738945221] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164386501]
[2021-06-01 18:46:02,837 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,837 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,838 INFO L87 Difference]: Start difference. First operand 154 states and 500 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:02,896 INFO L93 Difference]: Finished difference Result 281 states and 800 transitions.
[2021-06-01 18:46:02,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:02,897 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:02,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:02,898 INFO L225 Difference]: With dead ends: 281
[2021-06-01 18:46:02,898 INFO L226 Difference]: Without dead ends: 248
[2021-06-01 18:46:02,899 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 44.0ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:02,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states.
[2021-06-01 18:46:02,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 158.
[2021-06-01 18:46:02,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 3.261146496815287) internal successors, (512), 157 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 512 transitions.
[2021-06-01 18:46:02,909 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 512 transitions. Word has length 15
[2021-06-01 18:46:02,909 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:02,909 INFO L482 AbstractCegarLoop]: Abstraction has 158 states and 512 transitions.
[2021-06-01 18:46:02,909 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:02,909 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 512 transitions.
[2021-06-01 18:46:02,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:02,910 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:02,910 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:02,910 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14
[2021-06-01 18:46:02,910 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:02,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:02,911 INFO L82 PathProgramCache]: Analyzing trace with hash 372369077, now seen corresponding path program 3 times
[2021-06-01 18:46:02,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:02,911 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512144834]
[2021-06-01 18:46:02,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:02,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:02,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:02,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:02,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512144834]
[2021-06-01 18:46:02,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512144834] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:02,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:02,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:02,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323069412]
[2021-06-01 18:46:02,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:02,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:02,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:02,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:02,961 INFO L87 Difference]: Start difference. First operand 158 states and 512 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,046 INFO L93 Difference]: Finished difference Result 282 states and 815 transitions.
[2021-06-01 18:46:03,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,047 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,048 INFO L225 Difference]: With dead ends: 282
[2021-06-01 18:46:03,048 INFO L226 Difference]: Without dead ends: 263
[2021-06-01 18:46:03,056 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 62.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 263 states.
[2021-06-01 18:46:03,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 263 to 158.
[2021-06-01 18:46:03,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 3.261146496815287) internal successors, (512), 157 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 512 transitions.
[2021-06-01 18:46:03,068 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 512 transitions. Word has length 15
[2021-06-01 18:46:03,069 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,069 INFO L482 AbstractCegarLoop]: Abstraction has 158 states and 512 transitions.
[2021-06-01 18:46:03,069 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 512 transitions.
[2021-06-01 18:46:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,070 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,070 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,070 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2021-06-01 18:46:03,070 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1827392437, now seen corresponding path program 4 times
[2021-06-01 18:46:03,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,071 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443660726]
[2021-06-01 18:46:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,113 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,113 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443660726]
[2021-06-01 18:46:03,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443660726] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,114 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555621935]
[2021-06-01 18:46:03,114 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,114 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,115 INFO L87 Difference]: Start difference. First operand 158 states and 512 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,194 INFO L93 Difference]: Finished difference Result 273 states and 790 transitions.
[2021-06-01 18:46:03,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,195 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,196 INFO L225 Difference]: With dead ends: 273
[2021-06-01 18:46:03,196 INFO L226 Difference]: Without dead ends: 251
[2021-06-01 18:46:03,196 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 59.5ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states.
[2021-06-01 18:46:03,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 160.
[2021-06-01 18:46:03,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.2641509433962264) internal successors, (519), 159 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 519 transitions.
[2021-06-01 18:46:03,203 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 519 transitions. Word has length 15
[2021-06-01 18:46:03,203 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,203 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 519 transitions.
[2021-06-01 18:46:03,203 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,203 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 519 transitions.
[2021-06-01 18:46:03,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,204 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,204 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16
[2021-06-01 18:46:03,204 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,204 INFO L82 PathProgramCache]: Analyzing trace with hash 384286855, now seen corresponding path program 4 times
[2021-06-01 18:46:03,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740200169]
[2021-06-01 18:46:03,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,251 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,251 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740200169]
[2021-06-01 18:46:03,251 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740200169] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,251 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,251 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117329051]
[2021-06-01 18:46:03,252 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,253 INFO L87 Difference]: Start difference. First operand 160 states and 519 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,314 INFO L93 Difference]: Finished difference Result 254 states and 753 transitions.
[2021-06-01 18:46:03,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,315 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,316 INFO L225 Difference]: With dead ends: 254
[2021-06-01 18:46:03,316 INFO L226 Difference]: Without dead ends: 231
[2021-06-01 18:46:03,317 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 55.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states.
[2021-06-01 18:46:03,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 160.
[2021-06-01 18:46:03,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.251572327044025) internal successors, (517), 159 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 517 transitions.
[2021-06-01 18:46:03,322 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 517 transitions. Word has length 15
[2021-06-01 18:46:03,322 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,322 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 517 transitions.
[2021-06-01 18:46:03,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,322 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 517 transitions.
[2021-06-01 18:46:03,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,323 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,323 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,323 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2021-06-01 18:46:03,323 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1496312779, now seen corresponding path program 5 times
[2021-06-01 18:46:03,324 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087423183]
[2021-06-01 18:46:03,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087423183]
[2021-06-01 18:46:03,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1087423183] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,350 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,350 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877094403]
[2021-06-01 18:46:03,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,351 INFO L87 Difference]: Start difference. First operand 160 states and 517 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,409 INFO L93 Difference]: Finished difference Result 286 states and 846 transitions.
[2021-06-01 18:46:03,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,410 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,411 INFO L225 Difference]: With dead ends: 286
[2021-06-01 18:46:03,411 INFO L226 Difference]: Without dead ends: 264
[2021-06-01 18:46:03,411 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.3ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states.
[2021-06-01 18:46:03,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 160.
[2021-06-01 18:46:03,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.251572327044025) internal successors, (517), 159 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 517 transitions.
[2021-06-01 18:46:03,418 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 517 transitions. Word has length 15
[2021-06-01 18:46:03,418 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,418 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 517 transitions.
[2021-06-01 18:46:03,418 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,418 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 517 transitions.
[2021-06-01 18:46:03,418 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,418 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,419 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,419 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18
[2021-06-01 18:46:03,419 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,419 INFO L82 PathProgramCache]: Analyzing trace with hash 2099945467, now seen corresponding path program 6 times
[2021-06-01 18:46:03,419 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,419 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447185505]
[2021-06-01 18:46:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,458 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,458 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447185505]
[2021-06-01 18:46:03,458 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447185505] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,458 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,458 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924339664]
[2021-06-01 18:46:03,459 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,459 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,459 INFO L87 Difference]: Start difference. First operand 160 states and 517 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,514 INFO L93 Difference]: Finished difference Result 277 states and 810 transitions.
[2021-06-01 18:46:03,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,514 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,516 INFO L225 Difference]: With dead ends: 277
[2021-06-01 18:46:03,516 INFO L226 Difference]: Without dead ends: 255
[2021-06-01 18:46:03,516 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 34.2ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 255 states.
[2021-06-01 18:46:03,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 255 to 158.
[2021-06-01 18:46:03,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 158 states, 157 states have (on average 3.2356687898089174) internal successors, (508), 157 states have internal predecessors, (508), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 508 transitions.
[2021-06-01 18:46:03,522 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 508 transitions. Word has length 15
[2021-06-01 18:46:03,522 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,522 INFO L482 AbstractCegarLoop]: Abstraction has 158 states and 508 transitions.
[2021-06-01 18:46:03,522 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,522 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 508 transitions.
[2021-06-01 18:46:03,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,522 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,522 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,523 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19
[2021-06-01 18:46:03,523 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,523 INFO L82 PathProgramCache]: Analyzing trace with hash 232212098, now seen corresponding path program 5 times
[2021-06-01 18:46:03,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,523 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793036141]
[2021-06-01 18:46:03,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,554 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,554 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793036141]
[2021-06-01 18:46:03,554 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1793036141] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,555 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,555 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079518510]
[2021-06-01 18:46:03,555 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,555 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,556 INFO L87 Difference]: Start difference. First operand 158 states and 508 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,608 INFO L93 Difference]: Finished difference Result 312 states and 947 transitions.
[2021-06-01 18:46:03,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,609 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,610 INFO L225 Difference]: With dead ends: 312
[2021-06-01 18:46:03,610 INFO L226 Difference]: Without dead ends: 285
[2021-06-01 18:46:03,611 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.8ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2021-06-01 18:46:03,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 160.
[2021-06-01 18:46:03,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.238993710691824) internal successors, (515), 159 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 515 transitions.
[2021-06-01 18:46:03,616 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 515 transitions. Word has length 15
[2021-06-01 18:46:03,616 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,616 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 515 transitions.
[2021-06-01 18:46:03,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,616 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 515 transitions.
[2021-06-01 18:46:03,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,617 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,617 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,617 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20
[2021-06-01 18:46:03,617 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1046340473, now seen corresponding path program 5 times
[2021-06-01 18:46:03,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,618 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224615106]
[2021-06-01 18:46:03,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,647 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,647 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,647 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224615106]
[2021-06-01 18:46:03,648 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224615106] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,648 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,648 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,648 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1116149926]
[2021-06-01 18:46:03,648 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,648 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,649 INFO L87 Difference]: Start difference. First operand 160 states and 515 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,717 INFO L93 Difference]: Finished difference Result 371 states and 1121 transitions.
[2021-06-01 18:46:03,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:03,717 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,719 INFO L225 Difference]: With dead ends: 371
[2021-06-01 18:46:03,719 INFO L226 Difference]: Without dead ends: 352
[2021-06-01 18:46:03,719 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.6ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states.
[2021-06-01 18:46:03,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 160.
[2021-06-01 18:46:03,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.238993710691824) internal successors, (515), 159 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 515 transitions.
[2021-06-01 18:46:03,726 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 515 transitions. Word has length 15
[2021-06-01 18:46:03,726 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,726 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 515 transitions.
[2021-06-01 18:46:03,726 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,726 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 515 transitions.
[2021-06-01 18:46:03,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,727 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,727 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21
[2021-06-01 18:46:03,727 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,727 INFO L82 PathProgramCache]: Analyzing trace with hash 1131085214, now seen corresponding path program 6 times
[2021-06-01 18:46:03,727 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,727 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847222120]
[2021-06-01 18:46:03,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,758 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,758 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847222120]
[2021-06-01 18:46:03,758 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847222120] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,758 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,758 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [615271272]
[2021-06-01 18:46:03,758 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,758 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,759 INFO L87 Difference]: Start difference. First operand 160 states and 515 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,824 INFO L93 Difference]: Finished difference Result 377 states and 1137 transitions.
[2021-06-01 18:46:03,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:03,825 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,827 INFO L225 Difference]: With dead ends: 377
[2021-06-01 18:46:03,827 INFO L226 Difference]: Without dead ends: 356
[2021-06-01 18:46:03,827 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 356 states.
[2021-06-01 18:46:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 356 to 160.
[2021-06-01 18:46:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.238993710691824) internal successors, (515), 159 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 515 transitions.
[2021-06-01 18:46:03,833 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 515 transitions. Word has length 15
[2021-06-01 18:46:03,833 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,833 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 515 transitions.
[2021-06-01 18:46:03,833 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,834 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 515 transitions.
[2021-06-01 18:46:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16
[2021-06-01 18:46:03,834 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,834 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,834 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22
[2021-06-01 18:46:03,834 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,835 INFO L82 PathProgramCache]: Analyzing trace with hash -964122021, now seen corresponding path program 6 times
[2021-06-01 18:46:03,835 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,835 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134641531]
[2021-06-01 18:46:03,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134641531]
[2021-06-01 18:46:03,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134641531] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,860 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5
[2021-06-01 18:46:03,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008952160]
[2021-06-01 18:46:03,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:46:03,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:46:03,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,862 INFO L87 Difference]: Start difference. First operand 160 states and 515 transitions. Second operand has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,911 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,911 INFO L93 Difference]: Finished difference Result 268 states and 825 transitions.
[2021-06-01 18:46:03,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,911 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15
[2021-06-01 18:46:03,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,912 INFO L225 Difference]: With dead ends: 268
[2021-06-01 18:46:03,913 INFO L226 Difference]: Without dead ends: 245
[2021-06-01 18:46:03,913 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 31.4ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:03,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 245 states.
[2021-06-01 18:46:03,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 245 to 160.
[2021-06-01 18:46:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.2264150943396226) internal successors, (513), 159 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 513 transitions.
[2021-06-01 18:46:03,918 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 513 transitions. Word has length 15
[2021-06-01 18:46:03,918 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,918 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 513 transitions.
[2021-06-01 18:46:03,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,918 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 513 transitions.
[2021-06-01 18:46:03,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:03,919 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,919 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,919 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23
[2021-06-01 18:46:03,919 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,919 INFO L82 PathProgramCache]: Analyzing trace with hash 360622849, now seen corresponding path program 1 times
[2021-06-01 18:46:03,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,919 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420960229]
[2021-06-01 18:46:03,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420960229]
[2021-06-01 18:46:03,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420960229] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,938 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,938 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:03,938 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995976039]
[2021-06-01 18:46:03,938 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:03,938 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,939 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:03,939 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:03,939 INFO L87 Difference]: Start difference. First operand 160 states and 513 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:03,960 INFO L93 Difference]: Finished difference Result 304 states and 846 transitions.
[2021-06-01 18:46:03,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:03,960 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:03,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:03,962 INFO L225 Difference]: With dead ends: 304
[2021-06-01 18:46:03,962 INFO L226 Difference]: Without dead ends: 282
[2021-06-01 18:46:03,962 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:03,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states.
[2021-06-01 18:46:03,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 160.
[2021-06-01 18:46:03,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 159 states have (on average 3.1823899371069184) internal successors, (506), 159 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 506 transitions.
[2021-06-01 18:46:03,968 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 506 transitions. Word has length 16
[2021-06-01 18:46:03,968 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:03,968 INFO L482 AbstractCegarLoop]: Abstraction has 160 states and 506 transitions.
[2021-06-01 18:46:03,968 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:03,968 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 506 transitions.
[2021-06-01 18:46:03,969 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:03,969 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:03,969 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:03,969 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24
[2021-06-01 18:46:03,969 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:03,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:03,969 INFO L82 PathProgramCache]: Analyzing trace with hash 1058721603, now seen corresponding path program 2 times
[2021-06-01 18:46:03,970 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:03,970 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741593111]
[2021-06-01 18:46:03,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:03,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:03,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:03,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:03,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741593111]
[2021-06-01 18:46:03,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741593111] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:03,989 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:03,989 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:03,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125175734]
[2021-06-01 18:46:03,989 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:03,989 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:03,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:03,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:03,990 INFO L87 Difference]: Start difference. First operand 160 states and 506 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,012 INFO L93 Difference]: Finished difference Result 298 states and 826 transitions.
[2021-06-01 18:46:04,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:04,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,014 INFO L225 Difference]: With dead ends: 298
[2021-06-01 18:46:04,014 INFO L226 Difference]: Without dead ends: 276
[2021-06-01 18:46:04,014 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,015 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states.
[2021-06-01 18:46:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 153.
[2021-06-01 18:46:04,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 153 states, 152 states have (on average 3.223684210526316) internal successors, (490), 152 states have internal predecessors, (490), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 490 transitions.
[2021-06-01 18:46:04,019 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 490 transitions. Word has length 16
[2021-06-01 18:46:04,020 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,020 INFO L482 AbstractCegarLoop]: Abstraction has 153 states and 490 transitions.
[2021-06-01 18:46:04,020 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,020 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 490 transitions.
[2021-06-01 18:46:04,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,020 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,020 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,021 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25
[2021-06-01 18:46:04,021 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,021 INFO L82 PathProgramCache]: Analyzing trace with hash -570116437, now seen corresponding path program 1 times
[2021-06-01 18:46:04,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,021 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798890769]
[2021-06-01 18:46:04,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,037 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,037 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798890769]
[2021-06-01 18:46:04,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798890769] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1921147205]
[2021-06-01 18:46:04,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,038 INFO L87 Difference]: Start difference. First operand 153 states and 490 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,061 INFO L93 Difference]: Finished difference Result 267 states and 761 transitions.
[2021-06-01 18:46:04,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:04,062 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,063 INFO L225 Difference]: With dead ends: 267
[2021-06-01 18:46:04,063 INFO L226 Difference]: Without dead ends: 267
[2021-06-01 18:46:04,063 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,064 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states.
[2021-06-01 18:46:04,067 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 145.
[2021-06-01 18:46:04,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 144 states have (on average 3.2083333333333335) internal successors, (462), 144 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 462 transitions.
[2021-06-01 18:46:04,068 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 462 transitions. Word has length 16
[2021-06-01 18:46:04,068 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,068 INFO L482 AbstractCegarLoop]: Abstraction has 145 states and 462 transitions.
[2021-06-01 18:46:04,068 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,068 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 462 transitions.
[2021-06-01 18:46:04,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,069 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,069 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,069 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26
[2021-06-01 18:46:04,069 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,070 INFO L82 PathProgramCache]: Analyzing trace with hash -581930556, now seen corresponding path program 1 times
[2021-06-01 18:46:04,070 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,070 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1606154446]
[2021-06-01 18:46:04,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1606154446]
[2021-06-01 18:46:04,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1606154446] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,081 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,081 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479580474]
[2021-06-01 18:46:04,082 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,082 INFO L87 Difference]: Start difference. First operand 145 states and 462 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,105 INFO L93 Difference]: Finished difference Result 261 states and 729 transitions.
[2021-06-01 18:46:04,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:04,106 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,107 INFO L225 Difference]: With dead ends: 261
[2021-06-01 18:46:04,107 INFO L226 Difference]: Without dead ends: 236
[2021-06-01 18:46:04,107 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236 states.
[2021-06-01 18:46:04,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236 to 143.
[2021-06-01 18:46:04,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 3.147887323943662) internal successors, (447), 142 states have internal predecessors, (447), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 447 transitions.
[2021-06-01 18:46:04,112 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 447 transitions. Word has length 16
[2021-06-01 18:46:04,112 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,112 INFO L482 AbstractCegarLoop]: Abstraction has 143 states and 447 transitions.
[2021-06-01 18:46:04,112 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,112 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 447 transitions.
[2021-06-01 18:46:04,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,112 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,112 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,113 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27
[2021-06-01 18:46:04,113 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1813140347, now seen corresponding path program 3 times
[2021-06-01 18:46:04,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,113 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458004041]
[2021-06-01 18:46:04,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,125 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,125 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,125 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458004041]
[2021-06-01 18:46:04,125 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458004041] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,125 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,125 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909867141]
[2021-06-01 18:46:04,126 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,126 INFO L87 Difference]: Start difference. First operand 143 states and 447 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,141 INFO L93 Difference]: Finished difference Result 255 states and 710 transitions.
[2021-06-01 18:46:04,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:46:04,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,142 INFO L225 Difference]: With dead ends: 255
[2021-06-01 18:46:04,143 INFO L226 Difference]: Without dead ends: 233
[2021-06-01 18:46:04,143 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states.
[2021-06-01 18:46:04,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 143.
[2021-06-01 18:46:04,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 142 states have (on average 3.084507042253521) internal successors, (438), 142 states have internal predecessors, (438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 438 transitions.
[2021-06-01 18:46:04,147 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 438 transitions. Word has length 16
[2021-06-01 18:46:04,147 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,147 INFO L482 AbstractCegarLoop]: Abstraction has 143 states and 438 transitions.
[2021-06-01 18:46:04,147 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,147 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 438 transitions.
[2021-06-01 18:46:04,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,148 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,148 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,148 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28
[2021-06-01 18:46:04,148 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1420564495, now seen corresponding path program 2 times
[2021-06-01 18:46:04,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383833056]
[2021-06-01 18:46:04,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383833056]
[2021-06-01 18:46:04,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1383833056] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056244951]
[2021-06-01 18:46:04,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,162 INFO L87 Difference]: Start difference. First operand 143 states and 438 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,180 INFO L93 Difference]: Finished difference Result 206 states and 573 transitions.
[2021-06-01 18:46:04,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:46:04,180 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,181 INFO L225 Difference]: With dead ends: 206
[2021-06-01 18:46:04,181 INFO L226 Difference]: Without dead ends: 206
[2021-06-01 18:46:04,181 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.1ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states.
[2021-06-01 18:46:04,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 112.
[2021-06-01 18:46:04,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 112 states, 111 states have (on average 2.918918918918919) internal successors, (324), 111 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 324 transitions.
[2021-06-01 18:46:04,185 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 324 transitions. Word has length 16
[2021-06-01 18:46:04,185 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,185 INFO L482 AbstractCegarLoop]: Abstraction has 112 states and 324 transitions.
[2021-06-01 18:46:04,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,185 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 324 transitions.
[2021-06-01 18:46:04,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,185 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,185 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,186 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29
[2021-06-01 18:46:04,186 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,186 INFO L82 PathProgramCache]: Analyzing trace with hash -1372165464, now seen corresponding path program 2 times
[2021-06-01 18:46:04,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445275218]
[2021-06-01 18:46:04,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,197 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,197 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445275218]
[2021-06-01 18:46:04,197 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445275218] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,197 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,197 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [620630555]
[2021-06-01 18:46:04,198 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,198 INFO L87 Difference]: Start difference. First operand 112 states and 324 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,209 INFO L93 Difference]: Finished difference Result 163 states and 436 transitions.
[2021-06-01 18:46:04,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:46:04,209 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,210 INFO L225 Difference]: With dead ends: 163
[2021-06-01 18:46:04,210 INFO L226 Difference]: Without dead ends: 144
[2021-06-01 18:46:04,210 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states.
[2021-06-01 18:46:04,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 108.
[2021-06-01 18:46:04,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.9345794392523366) internal successors, (314), 107 states have internal predecessors, (314), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 314 transitions.
[2021-06-01 18:46:04,213 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 314 transitions. Word has length 16
[2021-06-01 18:46:04,214 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,214 INFO L482 AbstractCegarLoop]: Abstraction has 108 states and 314 transitions.
[2021-06-01 18:46:04,214 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 314 transitions.
[2021-06-01 18:46:04,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17
[2021-06-01 18:46:04,214 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,214 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,214 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30
[2021-06-01 18:46:04,214 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,215 INFO L82 PathProgramCache]: Analyzing trace with hash -97814091, now seen corresponding path program 4 times
[2021-06-01 18:46:04,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,215 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569050896]
[2021-06-01 18:46:04,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,228 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,228 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569050896]
[2021-06-01 18:46:04,229 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569050896] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,229 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,229 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:46:04,229 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [195456110]
[2021-06-01 18:46:04,229 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:46:04,229 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:46:04,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:46:04,230 INFO L87 Difference]: Start difference. First operand 108 states and 314 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,242 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,242 INFO L93 Difference]: Finished difference Result 123 states and 338 transitions.
[2021-06-01 18:46:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:46:04,242 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16
[2021-06-01 18:46:04,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,243 INFO L225 Difference]: With dead ends: 123
[2021-06-01 18:46:04,243 INFO L226 Difference]: Without dead ends: 108
[2021-06-01 18:46:04,243 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:46:04,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108 states.
[2021-06-01 18:46:04,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108 to 108.
[2021-06-01 18:46:04,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 108 states, 107 states have (on average 2.878504672897196) internal successors, (308), 107 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 108 states to 108 states and 308 transitions.
[2021-06-01 18:46:04,246 INFO L78 Accepts]: Start accepts. Automaton has 108 states and 308 transitions. Word has length 16
[2021-06-01 18:46:04,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,246 INFO L482 AbstractCegarLoop]: Abstraction has 108 states and 308 transitions.
[2021-06-01 18:46:04,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,246 INFO L276 IsEmpty]: Start isEmpty. Operand 108 states and 308 transitions.
[2021-06-01 18:46:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,246 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,247 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,247 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31
[2021-06-01 18:46:04,247 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash -524445326, now seen corresponding path program 1 times
[2021-06-01 18:46:04,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,247 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1436469180]
[2021-06-01 18:46:04,247 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1436469180]
[2021-06-01 18:46:04,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1436469180] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,287 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,287 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:04,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549099408]
[2021-06-01 18:46:04,287 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:04,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:04,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:04,288 INFO L87 Difference]: Start difference. First operand 108 states and 308 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,376 INFO L93 Difference]: Finished difference Result 265 states and 721 transitions.
[2021-06-01 18:46:04,377 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:04,377 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:04,377 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,378 INFO L225 Difference]: With dead ends: 265
[2021-06-01 18:46:04,378 INFO L226 Difference]: Without dead ends: 250
[2021-06-01 18:46:04,378 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 66.6ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:04,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states.
[2021-06-01 18:46:04,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 141.
[2021-06-01 18:46:04,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 140 states have (on average 2.7928571428571427) internal successors, (391), 140 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 391 transitions.
[2021-06-01 18:46:04,383 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 391 transitions. Word has length 17
[2021-06-01 18:46:04,383 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,383 INFO L482 AbstractCegarLoop]: Abstraction has 141 states and 391 transitions.
[2021-06-01 18:46:04,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,383 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 391 transitions.
[2021-06-01 18:46:04,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,383 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,383 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32
[2021-06-01 18:46:04,384 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,384 INFO L82 PathProgramCache]: Analyzing trace with hash 683107746, now seen corresponding path program 2 times
[2021-06-01 18:46:04,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204672540]
[2021-06-01 18:46:04,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,425 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,425 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,425 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204672540]
[2021-06-01 18:46:04,425 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204672540] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,426 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,426 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:04,426 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557054708]
[2021-06-01 18:46:04,426 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:04,426 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:04,426 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:04,426 INFO L87 Difference]: Start difference. First operand 141 states and 391 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,521 INFO L93 Difference]: Finished difference Result 298 states and 795 transitions.
[2021-06-01 18:46:04,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:04,522 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:04,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,523 INFO L225 Difference]: With dead ends: 298
[2021-06-01 18:46:04,523 INFO L226 Difference]: Without dead ends: 283
[2021-06-01 18:46:04,523 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 66.4ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:04,524 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 283 states.
[2021-06-01 18:46:04,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 283 to 150.
[2021-06-01 18:46:04,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 2.8053691275167787) internal successors, (418), 149 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 418 transitions.
[2021-06-01 18:46:04,528 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 418 transitions. Word has length 17
[2021-06-01 18:46:04,528 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,528 INFO L482 AbstractCegarLoop]: Abstraction has 150 states and 418 transitions.
[2021-06-01 18:46:04,528 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,528 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 418 transitions.
[2021-06-01 18:46:04,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,529 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,529 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33
[2021-06-01 18:46:04,529 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,529 INFO L82 PathProgramCache]: Analyzing trace with hash -1015612642, now seen corresponding path program 3 times
[2021-06-01 18:46:04,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625880904]
[2021-06-01 18:46:04,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625880904]
[2021-06-01 18:46:04,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625880904] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,568 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,568 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:04,568 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294367049]
[2021-06-01 18:46:04,568 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:04,569 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:04,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:04,569 INFO L87 Difference]: Start difference. First operand 150 states and 418 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,673 INFO L93 Difference]: Finished difference Result 281 states and 763 transitions.
[2021-06-01 18:46:04,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:04,673 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:04,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,675 INFO L225 Difference]: With dead ends: 281
[2021-06-01 18:46:04,675 INFO L226 Difference]: Without dead ends: 266
[2021-06-01 18:46:04,675 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 67.0ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:04,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states.
[2021-06-01 18:46:04,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 150.
[2021-06-01 18:46:04,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 149 states have (on average 2.8053691275167787) internal successors, (418), 149 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 418 transitions.
[2021-06-01 18:46:04,679 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 418 transitions. Word has length 17
[2021-06-01 18:46:04,679 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,679 INFO L482 AbstractCegarLoop]: Abstraction has 150 states and 418 transitions.
[2021-06-01 18:46:04,679 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,679 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 418 transitions.
[2021-06-01 18:46:04,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,680 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,680 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,680 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34
[2021-06-01 18:46:04,680 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,680 INFO L82 PathProgramCache]: Analyzing trace with hash 173653428, now seen corresponding path program 4 times
[2021-06-01 18:46:04,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895556448]
[2021-06-01 18:46:04,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895556448]
[2021-06-01 18:46:04,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895556448] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,717 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,718 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:04,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825765944]
[2021-06-01 18:46:04,718 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:04,718 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,718 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:04,718 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:04,718 INFO L87 Difference]: Start difference. First operand 150 states and 418 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,809 INFO L93 Difference]: Finished difference Result 289 states and 784 transitions.
[2021-06-01 18:46:04,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:04,809 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:04,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,810 INFO L225 Difference]: With dead ends: 289
[2021-06-01 18:46:04,811 INFO L226 Difference]: Without dead ends: 274
[2021-06-01 18:46:04,811 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 65.8ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:04,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states.
[2021-06-01 18:46:04,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 159.
[2021-06-01 18:46:04,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 2.7974683544303796) internal successors, (442), 158 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 442 transitions.
[2021-06-01 18:46:04,815 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 442 transitions. Word has length 17
[2021-06-01 18:46:04,815 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,815 INFO L482 AbstractCegarLoop]: Abstraction has 159 states and 442 transitions.
[2021-06-01 18:46:04,815 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 442 transitions.
[2021-06-01 18:46:04,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,816 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,816 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,816 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35
[2021-06-01 18:46:04,816 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,816 INFO L82 PathProgramCache]: Analyzing trace with hash 147877944, now seen corresponding path program 5 times
[2021-06-01 18:46:04,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,816 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601681076]
[2021-06-01 18:46:04,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:04,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:04,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601681076]
[2021-06-01 18:46:04,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601681076] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:04,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:04,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:04,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1505332848]
[2021-06-01 18:46:04,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:04,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:04,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:04,856 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:04,856 INFO L87 Difference]: Start difference. First operand 159 states and 442 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:04,963 INFO L93 Difference]: Finished difference Result 322 states and 859 transitions.
[2021-06-01 18:46:04,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:04,963 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:04,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:04,965 INFO L225 Difference]: With dead ends: 322
[2021-06-01 18:46:04,965 INFO L226 Difference]: Without dead ends: 307
[2021-06-01 18:46:04,965 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 72.4ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:04,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 307 states.
[2021-06-01 18:46:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 307 to 162.
[2021-06-01 18:46:04,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 161 states have (on average 2.8322981366459627) internal successors, (456), 161 states have internal predecessors, (456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 456 transitions.
[2021-06-01 18:46:04,970 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 456 transitions. Word has length 17
[2021-06-01 18:46:04,970 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:04,970 INFO L482 AbstractCegarLoop]: Abstraction has 162 states and 456 transitions.
[2021-06-01 18:46:04,970 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:04,971 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 456 transitions.
[2021-06-01 18:46:04,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:04,971 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:04,971 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:04,971 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36
[2021-06-01 18:46:04,971 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:04,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:04,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1550842444, now seen corresponding path program 6 times
[2021-06-01 18:46:04,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:04,972 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366753844]
[2021-06-01 18:46:04,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:04,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,011 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,011 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366753844]
[2021-06-01 18:46:05,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366753844] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562677401]
[2021-06-01 18:46:05,011 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,012 INFO L87 Difference]: Start difference. First operand 162 states and 456 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,123 INFO L93 Difference]: Finished difference Result 299 states and 814 transitions.
[2021-06-01 18:46:05,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,123 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,125 INFO L225 Difference]: With dead ends: 299
[2021-06-01 18:46:05,125 INFO L226 Difference]: Without dead ends: 284
[2021-06-01 18:46:05,125 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 72.7ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:05,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states.
[2021-06-01 18:46:05,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 159.
[2021-06-01 18:46:05,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 158 states have (on average 2.7974683544303796) internal successors, (442), 158 states have internal predecessors, (442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 442 transitions.
[2021-06-01 18:46:05,130 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 442 transitions. Word has length 17
[2021-06-01 18:46:05,130 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,130 INFO L482 AbstractCegarLoop]: Abstraction has 159 states and 442 transitions.
[2021-06-01 18:46:05,130 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,130 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 442 transitions.
[2021-06-01 18:46:05,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,131 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,131 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37
[2021-06-01 18:46:05,131 INFO L430 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2035892590, now seen corresponding path program 7 times
[2021-06-01 18:46:05,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545628879]
[2021-06-01 18:46:05,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,172 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,172 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,172 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545628879]
[2021-06-01 18:46:05,172 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545628879] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,172 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,173 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,173 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349577040]
[2021-06-01 18:46:05,173 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,173 INFO L87 Difference]: Start difference. First operand 159 states and 442 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,277 INFO L93 Difference]: Finished difference Result 389 states and 1040 transitions.
[2021-06-01 18:46:05,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,277 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,279 INFO L225 Difference]: With dead ends: 389
[2021-06-01 18:46:05,279 INFO L226 Difference]: Without dead ends: 374
[2021-06-01 18:46:05,279 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 374 states.
[2021-06-01 18:46:05,283 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 374 to 166.
[2021-06-01 18:46:05,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 165 states have (on average 2.8484848484848486) internal successors, (470), 165 states have internal predecessors, (470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 470 transitions.
[2021-06-01 18:46:05,284 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 470 transitions. Word has length 17
[2021-06-01 18:46:05,284 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,284 INFO L482 AbstractCegarLoop]: Abstraction has 166 states and 470 transitions.
[2021-06-01 18:46:05,284 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,284 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 470 transitions.
[2021-06-01 18:46:05,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,285 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,285 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,285 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38
[2021-06-01 18:46:05,285 INFO L430 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,285 INFO L82 PathProgramCache]: Analyzing trace with hash -828339518, now seen corresponding path program 8 times
[2021-06-01 18:46:05,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,286 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583715205]
[2021-06-01 18:46:05,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,332 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,332 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583715205]
[2021-06-01 18:46:05,332 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [583715205] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,332 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,332 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,332 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1349031653]
[2021-06-01 18:46:05,332 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,333 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,333 INFO L87 Difference]: Start difference. First operand 166 states and 470 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,436 INFO L93 Difference]: Finished difference Result 398 states and 1066 transitions.
[2021-06-01 18:46:05,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,436 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,438 INFO L225 Difference]: With dead ends: 398
[2021-06-01 18:46:05,438 INFO L226 Difference]: Without dead ends: 383
[2021-06-01 18:46:05,438 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 64.5ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 383 states.
[2021-06-01 18:46:05,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 383 to 169.
[2021-06-01 18:46:05,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 168 states have (on average 2.880952380952381) internal successors, (484), 168 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 484 transitions.
[2021-06-01 18:46:05,444 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 484 transitions. Word has length 17
[2021-06-01 18:46:05,444 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,444 INFO L482 AbstractCegarLoop]: Abstraction has 169 states and 484 transitions.
[2021-06-01 18:46:05,444 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,444 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 484 transitions.
[2021-06-01 18:46:05,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,445 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,445 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39
[2021-06-01 18:46:05,445 INFO L430 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1767907390, now seen corresponding path program 9 times
[2021-06-01 18:46:05,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1222516162]
[2021-06-01 18:46:05,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,487 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,487 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1222516162]
[2021-06-01 18:46:05,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1222516162] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1146009232]
[2021-06-01 18:46:05,488 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,488 INFO L87 Difference]: Start difference. First operand 169 states and 484 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,590 INFO L93 Difference]: Finished difference Result 405 states and 1082 transitions.
[2021-06-01 18:46:05,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,590 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,592 INFO L225 Difference]: With dead ends: 405
[2021-06-01 18:46:05,592 INFO L226 Difference]: Without dead ends: 390
[2021-06-01 18:46:05,592 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.8ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2021-06-01 18:46:05,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 161.
[2021-06-01 18:46:05,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 2.825) internal successors, (452), 160 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 452 transitions.
[2021-06-01 18:46:05,597 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 452 transitions. Word has length 17
[2021-06-01 18:46:05,597 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,598 INFO L482 AbstractCegarLoop]: Abstraction has 161 states and 452 transitions.
[2021-06-01 18:46:05,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,598 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 452 transitions.
[2021-06-01 18:46:05,598 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,598 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,598 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,598 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40
[2021-06-01 18:46:05,598 INFO L430 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1043349262, now seen corresponding path program 10 times
[2021-06-01 18:46:05,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875812666]
[2021-06-01 18:46:05,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,633 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875812666]
[2021-06-01 18:46:05,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875812666] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822495420]
[2021-06-01 18:46:05,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,634 INFO L87 Difference]: Start difference. First operand 161 states and 452 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,714 INFO L93 Difference]: Finished difference Result 340 states and 918 transitions.
[2021-06-01 18:46:05,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,715 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,716 INFO L225 Difference]: With dead ends: 340
[2021-06-01 18:46:05,716 INFO L226 Difference]: Without dead ends: 325
[2021-06-01 18:46:05,716 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 56.9ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states.
[2021-06-01 18:46:05,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 165.
[2021-06-01 18:46:05,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 165 states, 164 states have (on average 2.841463414634146) internal successors, (466), 164 states have internal predecessors, (466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 165 states to 165 states and 466 transitions.
[2021-06-01 18:46:05,721 INFO L78 Accepts]: Start accepts. Automaton has 165 states and 466 transitions. Word has length 17
[2021-06-01 18:46:05,721 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,721 INFO L482 AbstractCegarLoop]: Abstraction has 165 states and 466 transitions.
[2021-06-01 18:46:05,721 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 165 states and 466 transitions.
[2021-06-01 18:46:05,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,722 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,722 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,722 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41
[2021-06-01 18:46:05,722 INFO L430 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1480345592, now seen corresponding path program 11 times
[2021-06-01 18:46:05,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,723 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1528398184]
[2021-06-01 18:46:05,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,763 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,763 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1528398184]
[2021-06-01 18:46:05,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1528398184] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238502831]
[2021-06-01 18:46:05,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,765 INFO L87 Difference]: Start difference. First operand 165 states and 466 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,855 INFO L93 Difference]: Finished difference Result 335 states and 909 transitions.
[2021-06-01 18:46:05,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,855 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,856 INFO L225 Difference]: With dead ends: 335
[2021-06-01 18:46:05,856 INFO L226 Difference]: Without dead ends: 320
[2021-06-01 18:46:05,857 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states.
[2021-06-01 18:46:05,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 171.
[2021-06-01 18:46:05,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 2.8411764705882354) internal successors, (483), 170 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 483 transitions.
[2021-06-01 18:46:05,861 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 483 transitions. Word has length 17
[2021-06-01 18:46:05,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,862 INFO L482 AbstractCegarLoop]: Abstraction has 171 states and 483 transitions.
[2021-06-01 18:46:05,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,862 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 483 transitions.
[2021-06-01 18:46:05,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,862 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,862 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,863 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42
[2021-06-01 18:46:05,863 INFO L430 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,863 INFO L82 PathProgramCache]: Analyzing trace with hash -145439044, now seen corresponding path program 12 times
[2021-06-01 18:46:05,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,863 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1346963424]
[2021-06-01 18:46:05,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:05,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:05,900 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:05,900 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1346963424]
[2021-06-01 18:46:05,900 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1346963424] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:05,900 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:05,900 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:05,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537377630]
[2021-06-01 18:46:05,901 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:05,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:05,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:05,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:05,901 INFO L87 Difference]: Start difference. First operand 171 states and 483 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:05,989 INFO L93 Difference]: Finished difference Result 318 states and 879 transitions.
[2021-06-01 18:46:05,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:05,989 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:05,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:05,991 INFO L225 Difference]: With dead ends: 318
[2021-06-01 18:46:05,991 INFO L226 Difference]: Without dead ends: 303
[2021-06-01 18:46:05,991 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.1ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:05,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states.
[2021-06-01 18:46:05,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 171.
[2021-06-01 18:46:05,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 170 states have (on average 2.8411764705882354) internal successors, (483), 170 states have internal predecessors, (483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 483 transitions.
[2021-06-01 18:46:05,995 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 483 transitions. Word has length 17
[2021-06-01 18:46:05,995 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:05,995 INFO L482 AbstractCegarLoop]: Abstraction has 171 states and 483 transitions.
[2021-06-01 18:46:05,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:05,996 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 483 transitions.
[2021-06-01 18:46:05,996 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:05,996 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:05,996 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:05,996 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43
[2021-06-01 18:46:05,996 INFO L430 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:05,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:05,997 INFO L82 PathProgramCache]: Analyzing trace with hash 161256120, now seen corresponding path program 13 times
[2021-06-01 18:46:05,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:05,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296051603]
[2021-06-01 18:46:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:05,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,036 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,036 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,036 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296051603]
[2021-06-01 18:46:06,037 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296051603] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,037 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,037 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,037 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [894084488]
[2021-06-01 18:46:06,037 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,037 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,038 INFO L87 Difference]: Start difference. First operand 171 states and 483 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,128 INFO L93 Difference]: Finished difference Result 385 states and 1046 transitions.
[2021-06-01 18:46:06,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,128 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,130 INFO L225 Difference]: With dead ends: 385
[2021-06-01 18:46:06,130 INFO L226 Difference]: Without dead ends: 370
[2021-06-01 18:46:06,130 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.7ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 370 states.
[2021-06-01 18:46:06,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 370 to 174.
[2021-06-01 18:46:06,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.878612716763006) internal successors, (498), 173 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 498 transitions.
[2021-06-01 18:46:06,135 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 498 transitions. Word has length 17
[2021-06-01 18:46:06,135 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,135 INFO L482 AbstractCegarLoop]: Abstraction has 174 states and 498 transitions.
[2021-06-01 18:46:06,135 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,135 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 498 transitions.
[2021-06-01 18:46:06,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,136 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,136 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,136 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44
[2021-06-01 18:46:06,136 INFO L430 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,137 INFO L82 PathProgramCache]: Analyzing trace with hash -1057379240, now seen corresponding path program 14 times
[2021-06-01 18:46:06,137 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,137 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [116592777]
[2021-06-01 18:46:06,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,175 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,175 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,175 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [116592777]
[2021-06-01 18:46:06,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [116592777] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1741581096]
[2021-06-01 18:46:06,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,175 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,176 INFO L87 Difference]: Start difference. First operand 174 states and 498 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,259 INFO L93 Difference]: Finished difference Result 383 states and 1039 transitions.
[2021-06-01 18:46:06,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,261 INFO L225 Difference]: With dead ends: 383
[2021-06-01 18:46:06,261 INFO L226 Difference]: Without dead ends: 368
[2021-06-01 18:46:06,262 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states.
[2021-06-01 18:46:06,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 174.
[2021-06-01 18:46:06,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.878612716763006) internal successors, (498), 173 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 498 transitions.
[2021-06-01 18:46:06,270 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 498 transitions. Word has length 17
[2021-06-01 18:46:06,270 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,270 INFO L482 AbstractCegarLoop]: Abstraction has 174 states and 498 transitions.
[2021-06-01 18:46:06,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,270 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 498 transitions.
[2021-06-01 18:46:06,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,270 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,270 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,271 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45
[2021-06-01 18:46:06,271 INFO L430 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,271 INFO L82 PathProgramCache]: Analyzing trace with hash 1150316668, now seen corresponding path program 15 times
[2021-06-01 18:46:06,271 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,271 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278951905]
[2021-06-01 18:46:06,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,310 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,310 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278951905]
[2021-06-01 18:46:06,310 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278951905] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,310 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,310 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1294435667]
[2021-06-01 18:46:06,310 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,311 INFO L87 Difference]: Start difference. First operand 174 states and 498 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,420 INFO L93 Difference]: Finished difference Result 392 states and 1055 transitions.
[2021-06-01 18:46:06,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,421 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,422 INFO L225 Difference]: With dead ends: 392
[2021-06-01 18:46:06,422 INFO L226 Difference]: Without dead ends: 377
[2021-06-01 18:46:06,423 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 377 states.
[2021-06-01 18:46:06,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 377 to 177.
[2021-06-01 18:46:06,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 2.909090909090909) internal successors, (512), 176 states have internal predecessors, (512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 512 transitions.
[2021-06-01 18:46:06,428 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 512 transitions. Word has length 17
[2021-06-01 18:46:06,428 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,428 INFO L482 AbstractCegarLoop]: Abstraction has 177 states and 512 transitions.
[2021-06-01 18:46:06,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,428 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 512 transitions.
[2021-06-01 18:46:06,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,428 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,429 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,429 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46
[2021-06-01 18:46:06,429 INFO L430 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,429 INFO L82 PathProgramCache]: Analyzing trace with hash -19872328, now seen corresponding path program 16 times
[2021-06-01 18:46:06,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,429 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870436505]
[2021-06-01 18:46:06,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870436505]
[2021-06-01 18:46:06,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870436505] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,469 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688215911]
[2021-06-01 18:46:06,469 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,470 INFO L87 Difference]: Start difference. First operand 177 states and 512 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,560 INFO L93 Difference]: Finished difference Result 376 states and 1032 transitions.
[2021-06-01 18:46:06,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,566 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,568 INFO L225 Difference]: With dead ends: 376
[2021-06-01 18:46:06,568 INFO L226 Difference]: Without dead ends: 361
[2021-06-01 18:46:06,569 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 52.0ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states.
[2021-06-01 18:46:06,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 174.
[2021-06-01 18:46:06,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.878612716763006) internal successors, (498), 173 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 498 transitions.
[2021-06-01 18:46:06,574 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 498 transitions. Word has length 17
[2021-06-01 18:46:06,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,574 INFO L482 AbstractCegarLoop]: Abstraction has 174 states and 498 transitions.
[2021-06-01 18:46:06,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,574 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 498 transitions.
[2021-06-01 18:46:06,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,575 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,575 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47
[2021-06-01 18:46:06,575 INFO L430 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,576 INFO L82 PathProgramCache]: Analyzing trace with hash -36809380, now seen corresponding path program 17 times
[2021-06-01 18:46:06,576 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,576 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [648146829]
[2021-06-01 18:46:06,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,615 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,615 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [648146829]
[2021-06-01 18:46:06,615 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [648146829] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,615 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,615 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539444708]
[2021-06-01 18:46:06,616 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,616 INFO L87 Difference]: Start difference. First operand 174 states and 498 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,709 INFO L93 Difference]: Finished difference Result 364 states and 991 transitions.
[2021-06-01 18:46:06,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,709 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,711 INFO L225 Difference]: With dead ends: 364
[2021-06-01 18:46:06,711 INFO L226 Difference]: Without dead ends: 349
[2021-06-01 18:46:06,711 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 52.1ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states.
[2021-06-01 18:46:06,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 176.
[2021-06-01 18:46:06,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 175 states have (on average 2.8971428571428572) internal successors, (507), 175 states have internal predecessors, (507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 507 transitions.
[2021-06-01 18:46:06,716 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 507 transitions. Word has length 17
[2021-06-01 18:46:06,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,716 INFO L482 AbstractCegarLoop]: Abstraction has 176 states and 507 transitions.
[2021-06-01 18:46:06,717 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,717 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 507 transitions.
[2021-06-01 18:46:06,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,717 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,717 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48
[2021-06-01 18:46:06,717 INFO L430 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1103474456, now seen corresponding path program 18 times
[2021-06-01 18:46:06,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57419011]
[2021-06-01 18:46:06,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,755 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,755 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57419011]
[2021-06-01 18:46:06,756 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57419011] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,756 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,756 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,756 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561286434]
[2021-06-01 18:46:06,756 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,756 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,756 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,757 INFO L87 Difference]: Start difference. First operand 176 states and 507 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:06,866 INFO L93 Difference]: Finished difference Result 343 states and 953 transitions.
[2021-06-01 18:46:06,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:06,867 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:06,868 INFO L225 Difference]: With dead ends: 343
[2021-06-01 18:46:06,868 INFO L226 Difference]: Without dead ends: 328
[2021-06-01 18:46:06,869 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 55.3ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:06,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states.
[2021-06-01 18:46:06,873 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 174.
[2021-06-01 18:46:06,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 174 states, 173 states have (on average 2.878612716763006) internal successors, (498), 173 states have internal predecessors, (498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 174 states to 174 states and 498 transitions.
[2021-06-01 18:46:06,875 INFO L78 Accepts]: Start accepts. Automaton has 174 states and 498 transitions. Word has length 17
[2021-06-01 18:46:06,875 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:06,875 INFO L482 AbstractCegarLoop]: Abstraction has 174 states and 498 transitions.
[2021-06-01 18:46:06,875 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 174 states and 498 transitions.
[2021-06-01 18:46:06,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:06,875 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:06,876 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:06,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49
[2021-06-01 18:46:06,876 INFO L430 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:06,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:06,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1622951230, now seen corresponding path program 19 times
[2021-06-01 18:46:06,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:06,876 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327547231]
[2021-06-01 18:46:06,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:06,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:06,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:06,910 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:06,910 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327547231]
[2021-06-01 18:46:06,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327547231] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:06,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:06,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:06,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735542402]
[2021-06-01 18:46:06,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:06,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:06,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:06,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:06,911 INFO L87 Difference]: Start difference. First operand 174 states and 498 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,001 INFO L93 Difference]: Finished difference Result 360 states and 983 transitions.
[2021-06-01 18:46:07,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,001 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,003 INFO L225 Difference]: With dead ends: 360
[2021-06-01 18:46:07,003 INFO L226 Difference]: Without dead ends: 345
[2021-06-01 18:46:07,003 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 345 states.
[2021-06-01 18:46:07,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 345 to 177.
[2021-06-01 18:46:07,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 2.897727272727273) internal successors, (510), 176 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 510 transitions.
[2021-06-01 18:46:07,008 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 510 transitions. Word has length 17
[2021-06-01 18:46:07,008 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,008 INFO L482 AbstractCegarLoop]: Abstraction has 177 states and 510 transitions.
[2021-06-01 18:46:07,008 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,008 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 510 transitions.
[2021-06-01 18:46:07,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,009 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,009 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,009 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50
[2021-06-01 18:46:07,009 INFO L430 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,009 INFO L82 PathProgramCache]: Analyzing trace with hash 1422092646, now seen corresponding path program 20 times
[2021-06-01 18:46:07,009 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,009 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391717066]
[2021-06-01 18:46:07,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,046 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,046 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,046 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391717066]
[2021-06-01 18:46:07,046 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391717066] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,046 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,046 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023985603]
[2021-06-01 18:46:07,046 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,047 INFO L87 Difference]: Start difference. First operand 177 states and 510 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,137 INFO L93 Difference]: Finished difference Result 377 states and 1017 transitions.
[2021-06-01 18:46:07,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,137 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,138 INFO L225 Difference]: With dead ends: 377
[2021-06-01 18:46:07,138 INFO L226 Difference]: Without dead ends: 362
[2021-06-01 18:46:07,138 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.0ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,139 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2021-06-01 18:46:07,143 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 179.
[2021-06-01 18:46:07,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 2.9157303370786516) internal successors, (519), 178 states have internal predecessors, (519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 519 transitions.
[2021-06-01 18:46:07,143 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 519 transitions. Word has length 17
[2021-06-01 18:46:07,143 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,143 INFO L482 AbstractCegarLoop]: Abstraction has 179 states and 519 transitions.
[2021-06-01 18:46:07,144 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,144 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 519 transitions.
[2021-06-01 18:46:07,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,144 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,144 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,144 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51
[2021-06-01 18:46:07,144 INFO L430 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,145 INFO L82 PathProgramCache]: Analyzing trace with hash 203457286, now seen corresponding path program 21 times
[2021-06-01 18:46:07,145 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,145 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107290712]
[2021-06-01 18:46:07,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,199 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107290712]
[2021-06-01 18:46:07,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107290712] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025524893]
[2021-06-01 18:46:07,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,200 INFO L87 Difference]: Start difference. First operand 179 states and 519 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,286 INFO L93 Difference]: Finished difference Result 354 states and 972 transitions.
[2021-06-01 18:46:07,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,288 INFO L225 Difference]: With dead ends: 354
[2021-06-01 18:46:07,288 INFO L226 Difference]: Without dead ends: 339
[2021-06-01 18:46:07,288 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 65.3ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states.
[2021-06-01 18:46:07,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 177.
[2021-06-01 18:46:07,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 2.897727272727273) internal successors, (510), 176 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 510 transitions.
[2021-06-01 18:46:07,292 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 510 transitions. Word has length 17
[2021-06-01 18:46:07,293 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,293 INFO L482 AbstractCegarLoop]: Abstraction has 177 states and 510 transitions.
[2021-06-01 18:46:07,293 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,293 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 510 transitions.
[2021-06-01 18:46:07,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,293 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,293 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52
[2021-06-01 18:46:07,293 INFO L430 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,294 INFO L82 PathProgramCache]: Analyzing trace with hash -1026845314, now seen corresponding path program 22 times
[2021-06-01 18:46:07,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138217794]
[2021-06-01 18:46:07,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138217794]
[2021-06-01 18:46:07,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138217794] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405298936]
[2021-06-01 18:46:07,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,331 INFO L87 Difference]: Start difference. First operand 177 states and 510 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,418 INFO L93 Difference]: Finished difference Result 409 states and 1106 transitions.
[2021-06-01 18:46:07,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,418 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,420 INFO L225 Difference]: With dead ends: 409
[2021-06-01 18:46:07,420 INFO L226 Difference]: Without dead ends: 394
[2021-06-01 18:46:07,420 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.1ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2021-06-01 18:46:07,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 180.
[2021-06-01 18:46:07,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.910614525139665) internal successors, (521), 179 states have internal predecessors, (521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 521 transitions.
[2021-06-01 18:46:07,425 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 521 transitions. Word has length 17
[2021-06-01 18:46:07,425 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,425 INFO L482 AbstractCegarLoop]: Abstraction has 180 states and 521 transitions.
[2021-06-01 18:46:07,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 521 transitions.
[2021-06-01 18:46:07,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,426 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,426 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53
[2021-06-01 18:46:07,426 INFO L430 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1848016830, now seen corresponding path program 23 times
[2021-06-01 18:46:07,426 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,426 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396914982]
[2021-06-01 18:46:07,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396914982]
[2021-06-01 18:46:07,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396914982] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,463 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727384168]
[2021-06-01 18:46:07,463 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,463 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,464 INFO L87 Difference]: Start difference. First operand 180 states and 521 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,560 INFO L93 Difference]: Finished difference Result 407 states and 1110 transitions.
[2021-06-01 18:46:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,560 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,562 INFO L225 Difference]: With dead ends: 407
[2021-06-01 18:46:07,562 INFO L226 Difference]: Without dead ends: 392
[2021-06-01 18:46:07,562 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 55.2ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states.
[2021-06-01 18:46:07,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 183.
[2021-06-01 18:46:07,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.9395604395604398) internal successors, (535), 182 states have internal predecessors, (535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 535 transitions.
[2021-06-01 18:46:07,567 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 535 transitions. Word has length 17
[2021-06-01 18:46:07,567 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,568 INFO L482 AbstractCegarLoop]: Abstraction has 183 states and 535 transitions.
[2021-06-01 18:46:07,568 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,568 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 535 transitions.
[2021-06-01 18:46:07,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,568 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,568 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,568 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54
[2021-06-01 18:46:07,568 INFO L430 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,569 INFO L82 PathProgramCache]: Analyzing trace with hash 748230078, now seen corresponding path program 24 times
[2021-06-01 18:46:07,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,569 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672781243]
[2021-06-01 18:46:07,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,606 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,606 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672781243]
[2021-06-01 18:46:07,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672781243] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,607 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020774218]
[2021-06-01 18:46:07,607 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,607 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,607 INFO L87 Difference]: Start difference. First operand 183 states and 535 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,692 INFO L93 Difference]: Finished difference Result 384 states and 1065 transitions.
[2021-06-01 18:46:07,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,692 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,694 INFO L225 Difference]: With dead ends: 384
[2021-06-01 18:46:07,694 INFO L226 Difference]: Without dead ends: 369
[2021-06-01 18:46:07,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 53.5ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:07,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states.
[2021-06-01 18:46:07,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 177.
[2021-06-01 18:46:07,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 2.897727272727273) internal successors, (510), 176 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 510 transitions.
[2021-06-01 18:46:07,700 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 510 transitions. Word has length 17
[2021-06-01 18:46:07,700 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,700 INFO L482 AbstractCegarLoop]: Abstraction has 177 states and 510 transitions.
[2021-06-01 18:46:07,700 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,700 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 510 transitions.
[2021-06-01 18:46:07,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,700 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,700 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,701 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55
[2021-06-01 18:46:07,701 INFO L430 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,701 INFO L82 PathProgramCache]: Analyzing trace with hash -1951172510, now seen corresponding path program 25 times
[2021-06-01 18:46:07,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,701 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313011701]
[2021-06-01 18:46:07,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,738 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,738 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313011701]
[2021-06-01 18:46:07,738 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313011701] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,738 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,738 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1453812860]
[2021-06-01 18:46:07,738 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,739 INFO L87 Difference]: Start difference. First operand 177 states and 510 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,821 INFO L93 Difference]: Finished difference Result 403 states and 1103 transitions.
[2021-06-01 18:46:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,821 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,822 INFO L225 Difference]: With dead ends: 403
[2021-06-01 18:46:07,822 INFO L226 Difference]: Without dead ends: 388
[2021-06-01 18:46:07,822 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 47.3ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:07,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 388 states.
[2021-06-01 18:46:07,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 388 to 180.
[2021-06-01 18:46:07,827 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.9329608938547485) internal successors, (525), 179 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 525 transitions.
[2021-06-01 18:46:07,827 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 525 transitions. Word has length 17
[2021-06-01 18:46:07,827 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,827 INFO L482 AbstractCegarLoop]: Abstraction has 180 states and 525 transitions.
[2021-06-01 18:46:07,828 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,828 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 525 transitions.
[2021-06-01 18:46:07,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,828 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,828 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,828 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56
[2021-06-01 18:46:07,828 INFO L430 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1125159426, now seen corresponding path program 26 times
[2021-06-01 18:46:07,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,829 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539818787]
[2021-06-01 18:46:07,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:07,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:07,865 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:07,865 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539818787]
[2021-06-01 18:46:07,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539818787] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:07,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:07,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:07,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986077588]
[2021-06-01 18:46:07,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:07,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:07,866 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:07,866 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:07,866 INFO L87 Difference]: Start difference. First operand 180 states and 525 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:07,973 INFO L93 Difference]: Finished difference Result 401 states and 1096 transitions.
[2021-06-01 18:46:07,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:07,973 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:07,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:07,974 INFO L225 Difference]: With dead ends: 401
[2021-06-01 18:46:07,974 INFO L226 Difference]: Without dead ends: 386
[2021-06-01 18:46:07,975 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 56.7ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:07,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states.
[2021-06-01 18:46:07,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 178.
[2021-06-01 18:46:07,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 2.9152542372881354) internal successors, (516), 177 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 516 transitions.
[2021-06-01 18:46:07,980 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 516 transitions. Word has length 17
[2021-06-01 18:46:07,980 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:07,980 INFO L482 AbstractCegarLoop]: Abstraction has 178 states and 516 transitions.
[2021-06-01 18:46:07,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:07,980 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 516 transitions.
[2021-06-01 18:46:07,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:07,980 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:07,980 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:07,981 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57
[2021-06-01 18:46:07,981 INFO L430 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:07,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:07,981 INFO L82 PathProgramCache]: Analyzing trace with hash -962111962, now seen corresponding path program 27 times
[2021-06-01 18:46:07,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:07,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620024177]
[2021-06-01 18:46:07,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620024177]
[2021-06-01 18:46:08,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620024177] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,018 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,018 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,018 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724244378]
[2021-06-01 18:46:08,018 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,018 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,019 INFO L87 Difference]: Start difference. First operand 178 states and 516 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,125 INFO L93 Difference]: Finished difference Result 395 states and 1075 transitions.
[2021-06-01 18:46:08,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,125 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,127 INFO L225 Difference]: With dead ends: 395
[2021-06-01 18:46:08,127 INFO L226 Difference]: Without dead ends: 380
[2021-06-01 18:46:08,127 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 49.6ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:08,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states.
[2021-06-01 18:46:08,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 181.
[2021-06-01 18:46:08,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.9444444444444446) internal successors, (530), 180 states have internal predecessors, (530), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 530 transitions.
[2021-06-01 18:46:08,132 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 530 transitions. Word has length 17
[2021-06-01 18:46:08,132 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,132 INFO L482 AbstractCegarLoop]: Abstraction has 181 states and 530 transitions.
[2021-06-01 18:46:08,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,132 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 530 transitions.
[2021-06-01 18:46:08,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,132 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,133 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,133 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58
[2021-06-01 18:46:08,133 INFO L430 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,133 INFO L82 PathProgramCache]: Analyzing trace with hash -2132300958, now seen corresponding path program 28 times
[2021-06-01 18:46:08,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029795847]
[2021-06-01 18:46:08,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,180 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029795847]
[2021-06-01 18:46:08,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029795847] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537059350]
[2021-06-01 18:46:08,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,181 INFO L87 Difference]: Start difference. First operand 181 states and 530 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,279 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,279 INFO L93 Difference]: Finished difference Result 379 states and 1052 transitions.
[2021-06-01 18:46:08,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,280 INFO L225 Difference]: With dead ends: 379
[2021-06-01 18:46:08,280 INFO L226 Difference]: Without dead ends: 364
[2021-06-01 18:46:08,280 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 58.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:08,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states.
[2021-06-01 18:46:08,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 178.
[2021-06-01 18:46:08,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178 states, 177 states have (on average 2.9152542372881354) internal successors, (516), 177 states have internal predecessors, (516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178 states to 178 states and 516 transitions.
[2021-06-01 18:46:08,285 INFO L78 Accepts]: Start accepts. Automaton has 178 states and 516 transitions. Word has length 17
[2021-06-01 18:46:08,285 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,285 INFO L482 AbstractCegarLoop]: Abstraction has 178 states and 516 transitions.
[2021-06-01 18:46:08,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,286 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 516 transitions.
[2021-06-01 18:46:08,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,286 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,286 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,286 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59
[2021-06-01 18:46:08,286 INFO L430 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,287 INFO L82 PathProgramCache]: Analyzing trace with hash 2145729286, now seen corresponding path program 29 times
[2021-06-01 18:46:08,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,287 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956417698]
[2021-06-01 18:46:08,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956417698]
[2021-06-01 18:46:08,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956417698] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,341 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,341 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,341 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137707134]
[2021-06-01 18:46:08,341 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,342 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,342 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,342 INFO L87 Difference]: Start difference. First operand 178 states and 516 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,419 INFO L93 Difference]: Finished difference Result 363 states and 1003 transitions.
[2021-06-01 18:46:08,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,420 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,420 INFO L225 Difference]: With dead ends: 363
[2021-06-01 18:46:08,420 INFO L226 Difference]: Without dead ends: 348
[2021-06-01 18:46:08,421 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.3ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states.
[2021-06-01 18:46:08,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 180.
[2021-06-01 18:46:08,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.9329608938547485) internal successors, (525), 179 states have internal predecessors, (525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 525 transitions.
[2021-06-01 18:46:08,425 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 525 transitions. Word has length 17
[2021-06-01 18:46:08,425 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,425 INFO L482 AbstractCegarLoop]: Abstraction has 180 states and 525 transitions.
[2021-06-01 18:46:08,425 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,425 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 525 transitions.
[2021-06-01 18:46:08,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,426 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,426 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60
[2021-06-01 18:46:08,426 INFO L430 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1008954174, now seen corresponding path program 30 times
[2021-06-01 18:46:08,427 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,427 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289888461]
[2021-06-01 18:46:08,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,478 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,478 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289888461]
[2021-06-01 18:46:08,478 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289888461] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,478 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,478 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,479 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1774377162]
[2021-06-01 18:46:08,479 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,479 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,479 INFO L87 Difference]: Start difference. First operand 180 states and 525 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,565 INFO L93 Difference]: Finished difference Result 342 states and 965 transitions.
[2021-06-01 18:46:08,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,565 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,566 INFO L225 Difference]: With dead ends: 342
[2021-06-01 18:46:08,566 INFO L226 Difference]: Without dead ends: 327
[2021-06-01 18:46:08,566 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 55.5ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:08,566 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 327 states.
[2021-06-01 18:46:08,569 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 327 to 177.
[2021-06-01 18:46:08,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 2.897727272727273) internal successors, (510), 176 states have internal predecessors, (510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 510 transitions.
[2021-06-01 18:46:08,570 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 510 transitions. Word has length 17
[2021-06-01 18:46:08,570 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,570 INFO L482 AbstractCegarLoop]: Abstraction has 177 states and 510 transitions.
[2021-06-01 18:46:08,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 510 transitions.
[2021-06-01 18:46:08,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,571 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,571 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61
[2021-06-01 18:46:08,571 INFO L430 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,571 INFO L82 PathProgramCache]: Analyzing trace with hash 1057121422, now seen corresponding path program 31 times
[2021-06-01 18:46:08,571 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,571 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901506526]
[2021-06-01 18:46:08,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901506526]
[2021-06-01 18:46:08,613 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901506526] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296123856]
[2021-06-01 18:46:08,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,614 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,614 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,614 INFO L87 Difference]: Start difference. First operand 177 states and 510 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,690 INFO L93 Difference]: Finished difference Result 377 states and 1036 transitions.
[2021-06-01 18:46:08,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,691 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,691 INFO L225 Difference]: With dead ends: 377
[2021-06-01 18:46:08,691 INFO L226 Difference]: Without dead ends: 362
[2021-06-01 18:46:08,692 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:08,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states.
[2021-06-01 18:46:08,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 186.
[2021-06-01 18:46:08,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 185 states have (on average 2.9513513513513514) internal successors, (546), 185 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 546 transitions.
[2021-06-01 18:46:08,696 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 546 transitions. Word has length 17
[2021-06-01 18:46:08,696 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,696 INFO L482 AbstractCegarLoop]: Abstraction has 186 states and 546 transitions.
[2021-06-01 18:46:08,697 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,697 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 546 transitions.
[2021-06-01 18:46:08,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,697 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,697 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,697 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62
[2021-06-01 18:46:08,697 INFO L430 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,698 INFO L82 PathProgramCache]: Analyzing trace with hash -2030292802, now seen corresponding path program 32 times
[2021-06-01 18:46:08,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385397414]
[2021-06-01 18:46:08,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,736 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,736 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385397414]
[2021-06-01 18:46:08,736 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [385397414] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,736 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,736 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176217171]
[2021-06-01 18:46:08,736 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,737 INFO L87 Difference]: Start difference. First operand 186 states and 546 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,825 INFO L93 Difference]: Finished difference Result 386 states and 1062 transitions.
[2021-06-01 18:46:08,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,826 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,827 INFO L225 Difference]: With dead ends: 386
[2021-06-01 18:46:08,827 INFO L226 Difference]: Without dead ends: 371
[2021-06-01 18:46:08,827 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 57.2ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:08,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2021-06-01 18:46:08,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 189.
[2021-06-01 18:46:08,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 2.978723404255319) internal successors, (560), 188 states have internal predecessors, (560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 560 transitions.
[2021-06-01 18:46:08,832 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 560 transitions. Word has length 17
[2021-06-01 18:46:08,832 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,832 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 560 transitions.
[2021-06-01 18:46:08,832 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,832 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 560 transitions.
[2021-06-01 18:46:08,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,832 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,833 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,833 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63
[2021-06-01 18:46:08,833 INFO L430 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,833 INFO L82 PathProgramCache]: Analyzing trace with hash 565954106, now seen corresponding path program 33 times
[2021-06-01 18:46:08,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,833 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300209360]
[2021-06-01 18:46:08,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:08,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:08,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:08,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300209360]
[2021-06-01 18:46:08,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300209360] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:08,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:08,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:08,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162730723]
[2021-06-01 18:46:08,882 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:08,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:08,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:08,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:08,883 INFO L87 Difference]: Start difference. First operand 189 states and 560 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:08,977 INFO L93 Difference]: Finished difference Result 393 states and 1078 transitions.
[2021-06-01 18:46:08,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:08,977 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:08,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:08,978 INFO L225 Difference]: With dead ends: 393
[2021-06-01 18:46:08,978 INFO L226 Difference]: Without dead ends: 378
[2021-06-01 18:46:08,978 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 63.2ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:08,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states.
[2021-06-01 18:46:08,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 181.
[2021-06-01 18:46:08,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.933333333333333) internal successors, (528), 180 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 528 transitions.
[2021-06-01 18:46:08,983 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 528 transitions. Word has length 17
[2021-06-01 18:46:08,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:08,983 INFO L482 AbstractCegarLoop]: Abstraction has 181 states and 528 transitions.
[2021-06-01 18:46:08,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:08,983 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 528 transitions.
[2021-06-01 18:46:08,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:08,984 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:08,984 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:08,984 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64
[2021-06-01 18:46:08,984 INFO L430 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:08,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:08,984 INFO L82 PathProgramCache]: Analyzing trace with hash 2049664750, now seen corresponding path program 34 times
[2021-06-01 18:46:08,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:08,984 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402385938]
[2021-06-01 18:46:08,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:08,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,022 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,022 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,022 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402385938]
[2021-06-01 18:46:09,022 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402385938] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,022 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,023 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270366616]
[2021-06-01 18:46:09,023 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,023 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,023 INFO L87 Difference]: Start difference. First operand 181 states and 528 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,118 INFO L93 Difference]: Finished difference Result 438 states and 1184 transitions.
[2021-06-01 18:46:09,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,118 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,119 INFO L225 Difference]: With dead ends: 438
[2021-06-01 18:46:09,119 INFO L226 Difference]: Without dead ends: 423
[2021-06-01 18:46:09,119 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 62.2ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:09,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states.
[2021-06-01 18:46:09,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 185.
[2021-06-01 18:46:09,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 2.9456521739130435) internal successors, (542), 184 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 542 transitions.
[2021-06-01 18:46:09,125 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 542 transitions. Word has length 17
[2021-06-01 18:46:09,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,125 INFO L482 AbstractCegarLoop]: Abstraction has 185 states and 542 transitions.
[2021-06-01 18:46:09,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,125 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 542 transitions.
[2021-06-01 18:46:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,125 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,126 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,126 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65
[2021-06-01 18:46:09,126 INFO L430 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,126 INFO L82 PathProgramCache]: Analyzing trace with hash 278392308, now seen corresponding path program 35 times
[2021-06-01 18:46:09,126 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,126 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [545105696]
[2021-06-01 18:46:09,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,176 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,176 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [545105696]
[2021-06-01 18:46:09,176 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [545105696] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,176 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,176 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612410606]
[2021-06-01 18:46:09,176 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,177 INFO L87 Difference]: Start difference. First operand 185 states and 542 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,273 INFO L93 Difference]: Finished difference Result 433 states and 1175 transitions.
[2021-06-01 18:46:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,274 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,274 INFO L225 Difference]: With dead ends: 433
[2021-06-01 18:46:09,274 INFO L226 Difference]: Without dead ends: 418
[2021-06-01 18:46:09,275 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:09,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states.
[2021-06-01 18:46:09,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 187.
[2021-06-01 18:46:09,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 2.9623655913978495) internal successors, (551), 186 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 551 transitions.
[2021-06-01 18:46:09,279 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 551 transitions. Word has length 17
[2021-06-01 18:46:09,279 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,279 INFO L482 AbstractCegarLoop]: Abstraction has 187 states and 551 transitions.
[2021-06-01 18:46:09,279 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,279 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 551 transitions.
[2021-06-01 18:46:09,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,279 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,279 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,279 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66
[2021-06-01 18:46:09,280 INFO L430 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,280 INFO L82 PathProgramCache]: Analyzing trace with hash -1347392328, now seen corresponding path program 36 times
[2021-06-01 18:46:09,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,280 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610659385]
[2021-06-01 18:46:09,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,323 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,323 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610659385]
[2021-06-01 18:46:09,324 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610659385] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,324 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,324 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434371009]
[2021-06-01 18:46:09,324 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,324 INFO L87 Difference]: Start difference. First operand 187 states and 551 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,408 INFO L93 Difference]: Finished difference Result 416 states and 1145 transitions.
[2021-06-01 18:46:09,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,409 INFO L225 Difference]: With dead ends: 416
[2021-06-01 18:46:09,409 INFO L226 Difference]: Without dead ends: 401
[2021-06-01 18:46:09,409 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 57.3ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:09,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states.
[2021-06-01 18:46:09,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 181.
[2021-06-01 18:46:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 181 states, 180 states have (on average 2.933333333333333) internal successors, (528), 180 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 528 transitions.
[2021-06-01 18:46:09,412 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 528 transitions. Word has length 17
[2021-06-01 18:46:09,412 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,412 INFO L482 AbstractCegarLoop]: Abstraction has 181 states and 528 transitions.
[2021-06-01 18:46:09,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,413 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 528 transitions.
[2021-06-01 18:46:09,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,413 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,413 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,413 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67
[2021-06-01 18:46:09,413 INFO L430 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1040697164, now seen corresponding path program 37 times
[2021-06-01 18:46:09,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1632506914]
[2021-06-01 18:46:09,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,453 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,453 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1632506914]
[2021-06-01 18:46:09,453 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1632506914] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,453 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,453 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,453 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887681621]
[2021-06-01 18:46:09,454 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,454 INFO L87 Difference]: Start difference. First operand 181 states and 528 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,535 INFO L93 Difference]: Finished difference Result 437 states and 1201 transitions.
[2021-06-01 18:46:09,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,535 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,536 INFO L225 Difference]: With dead ends: 437
[2021-06-01 18:46:09,537 INFO L226 Difference]: Without dead ends: 422
[2021-06-01 18:46:09,537 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:09,537 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states.
[2021-06-01 18:46:09,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 184.
[2021-06-01 18:46:09,541 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.9672131147540983) internal successors, (543), 183 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 543 transitions.
[2021-06-01 18:46:09,541 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 543 transitions. Word has length 17
[2021-06-01 18:46:09,542 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,542 INFO L482 AbstractCegarLoop]: Abstraction has 184 states and 543 transitions.
[2021-06-01 18:46:09,542 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,542 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 543 transitions.
[2021-06-01 18:46:09,542 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,542 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,542 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,542 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68
[2021-06-01 18:46:09,542 INFO L430 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,543 INFO L82 PathProgramCache]: Analyzing trace with hash 2035634772, now seen corresponding path program 38 times
[2021-06-01 18:46:09,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,543 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126102672]
[2021-06-01 18:46:09,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,585 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126102672]
[2021-06-01 18:46:09,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126102672] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,585 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,585 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789760478]
[2021-06-01 18:46:09,586 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,586 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,586 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,586 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,586 INFO L87 Difference]: Start difference. First operand 184 states and 543 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,667 INFO L93 Difference]: Finished difference Result 435 states and 1194 transitions.
[2021-06-01 18:46:09,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,668 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,668 INFO L225 Difference]: With dead ends: 435
[2021-06-01 18:46:09,668 INFO L226 Difference]: Without dead ends: 420
[2021-06-01 18:46:09,669 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.8ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:09,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 420 states.
[2021-06-01 18:46:09,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 420 to 182.
[2021-06-01 18:46:09,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.9502762430939224) internal successors, (534), 181 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 534 transitions.
[2021-06-01 18:46:09,672 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 534 transitions. Word has length 17
[2021-06-01 18:46:09,672 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,672 INFO L482 AbstractCegarLoop]: Abstraction has 182 states and 534 transitions.
[2021-06-01 18:46:09,672 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,672 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 534 transitions.
[2021-06-01 18:46:09,672 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,672 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,672 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69
[2021-06-01 18:46:09,680 INFO L430 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,680 INFO L82 PathProgramCache]: Analyzing trace with hash -51636616, now seen corresponding path program 39 times
[2021-06-01 18:46:09,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,680 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047522473]
[2021-06-01 18:46:09,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,724 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047522473]
[2021-06-01 18:46:09,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047522473] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,725 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,725 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,725 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067230732]
[2021-06-01 18:46:09,725 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,726 INFO L87 Difference]: Start difference. First operand 182 states and 534 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,801 INFO L93 Difference]: Finished difference Result 468 states and 1258 transitions.
[2021-06-01 18:46:09,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,802 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,802 INFO L225 Difference]: With dead ends: 468
[2021-06-01 18:46:09,803 INFO L226 Difference]: Without dead ends: 453
[2021-06-01 18:46:09,803 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 48.1ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:09,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states.
[2021-06-01 18:46:09,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 185.
[2021-06-01 18:46:09,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 2.9782608695652173) internal successors, (548), 184 states have internal predecessors, (548), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 548 transitions.
[2021-06-01 18:46:09,808 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 548 transitions. Word has length 17
[2021-06-01 18:46:09,808 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,808 INFO L482 AbstractCegarLoop]: Abstraction has 185 states and 548 transitions.
[2021-06-01 18:46:09,808 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,808 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 548 transitions.
[2021-06-01 18:46:09,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,809 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,809 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70
[2021-06-01 18:46:09,809 INFO L430 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1221825612, now seen corresponding path program 40 times
[2021-06-01 18:46:09,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825966720]
[2021-06-01 18:46:09,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825966720]
[2021-06-01 18:46:09,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825966720] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82587496]
[2021-06-01 18:46:09,846 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,846 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,846 INFO L87 Difference]: Start difference. First operand 185 states and 548 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:09,927 INFO L93 Difference]: Finished difference Result 452 states and 1235 transitions.
[2021-06-01 18:46:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:09,927 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:09,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:09,928 INFO L225 Difference]: With dead ends: 452
[2021-06-01 18:46:09,928 INFO L226 Difference]: Without dead ends: 437
[2021-06-01 18:46:09,928 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 45.0ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:09,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states.
[2021-06-01 18:46:09,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 182.
[2021-06-01 18:46:09,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 181 states have (on average 2.9502762430939224) internal successors, (534), 181 states have internal predecessors, (534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 534 transitions.
[2021-06-01 18:46:09,932 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 534 transitions. Word has length 17
[2021-06-01 18:46:09,933 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:09,933 INFO L482 AbstractCegarLoop]: Abstraction has 182 states and 534 transitions.
[2021-06-01 18:46:09,933 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:09,933 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 534 transitions.
[2021-06-01 18:46:09,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:09,933 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:09,933 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:09,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71
[2021-06-01 18:46:09,934 INFO L430 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:09,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:09,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1238762664, now seen corresponding path program 41 times
[2021-06-01 18:46:09,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:09,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992893006]
[2021-06-01 18:46:09,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:09,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:09,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:09,969 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:09,969 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992893006]
[2021-06-01 18:46:09,969 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992893006] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:09,969 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:09,969 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:09,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421016898]
[2021-06-01 18:46:09,970 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:09,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:09,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:09,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:09,970 INFO L87 Difference]: Start difference. First operand 182 states and 534 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,071 INFO L93 Difference]: Finished difference Result 446 states and 1215 transitions.
[2021-06-01 18:46:10,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,071 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,072 INFO L225 Difference]: With dead ends: 446
[2021-06-01 18:46:10,072 INFO L226 Difference]: Without dead ends: 431
[2021-06-01 18:46:10,072 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 54.7ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:10,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2021-06-01 18:46:10,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 184.
[2021-06-01 18:46:10,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 183 states have (on average 2.9672131147540983) internal successors, (543), 183 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 543 transitions.
[2021-06-01 18:46:10,076 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 543 transitions. Word has length 17
[2021-06-01 18:46:10,076 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,076 INFO L482 AbstractCegarLoop]: Abstraction has 184 states and 543 transitions.
[2021-06-01 18:46:10,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,076 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 543 transitions.
[2021-06-01 18:46:10,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,077 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,077 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72
[2021-06-01 18:46:10,077 INFO L430 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,077 INFO L82 PathProgramCache]: Analyzing trace with hash -98478828, now seen corresponding path program 42 times
[2021-06-01 18:46:10,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967069749]
[2021-06-01 18:46:10,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,118 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,118 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967069749]
[2021-06-01 18:46:10,118 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967069749] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,118 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,118 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402204017]
[2021-06-01 18:46:10,118 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,119 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,119 INFO L87 Difference]: Start difference. First operand 184 states and 543 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,216 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,216 INFO L93 Difference]: Finished difference Result 425 states and 1177 transitions.
[2021-06-01 18:46:10,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,217 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,217 INFO L225 Difference]: With dead ends: 425
[2021-06-01 18:46:10,217 INFO L226 Difference]: Without dead ends: 410
[2021-06-01 18:46:10,218 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 63.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:10,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states.
[2021-06-01 18:46:10,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 179.
[2021-06-01 18:46:10,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 178 states have (on average 2.9101123595505616) internal successors, (518), 178 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 518 transitions.
[2021-06-01 18:46:10,221 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 518 transitions. Word has length 17
[2021-06-01 18:46:10,221 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,221 INFO L482 AbstractCegarLoop]: Abstraction has 179 states and 518 transitions.
[2021-06-01 18:46:10,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,221 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 518 transitions.
[2021-06-01 18:46:10,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,222 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,222 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73
[2021-06-01 18:46:10,222 INFO L430 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,222 INFO L82 PathProgramCache]: Analyzing trace with hash -485249606, now seen corresponding path program 43 times
[2021-06-01 18:46:10,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133845618]
[2021-06-01 18:46:10,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,257 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,257 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133845618]
[2021-06-01 18:46:10,257 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133845618] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,257 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,257 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,257 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434176809]
[2021-06-01 18:46:10,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,258 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,258 INFO L87 Difference]: Start difference. First operand 179 states and 518 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,344 INFO L93 Difference]: Finished difference Result 323 states and 889 transitions.
[2021-06-01 18:46:10,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,344 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,345 INFO L225 Difference]: With dead ends: 323
[2021-06-01 18:46:10,345 INFO L226 Difference]: Without dead ends: 308
[2021-06-01 18:46:10,345 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 62.3ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:10,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states.
[2021-06-01 18:46:10,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 187.
[2021-06-01 18:46:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 186 states have (on average 2.913978494623656) internal successors, (542), 186 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 542 transitions.
[2021-06-01 18:46:10,349 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 542 transitions. Word has length 17
[2021-06-01 18:46:10,349 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,349 INFO L482 AbstractCegarLoop]: Abstraction has 187 states and 542 transitions.
[2021-06-01 18:46:10,349 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,349 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 542 transitions.
[2021-06-01 18:46:10,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,350 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,350 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,350 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74
[2021-06-01 18:46:10,350 INFO L430 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,350 INFO L82 PathProgramCache]: Analyzing trace with hash 2038445248, now seen corresponding path program 44 times
[2021-06-01 18:46:10,350 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,350 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850290883]
[2021-06-01 18:46:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,386 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,386 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850290883]
[2021-06-01 18:46:10,386 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850290883] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,386 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,386 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,386 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286169549]
[2021-06-01 18:46:10,386 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,387 INFO L87 Difference]: Start difference. First operand 187 states and 542 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,488 INFO L93 Difference]: Finished difference Result 353 states and 951 transitions.
[2021-06-01 18:46:10,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,488 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,489 INFO L225 Difference]: With dead ends: 353
[2021-06-01 18:46:10,489 INFO L226 Difference]: Without dead ends: 338
[2021-06-01 18:46:10,489 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 63.5ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:10,490 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states.
[2021-06-01 18:46:10,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 189.
[2021-06-01 18:46:10,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 2.9308510638297873) internal successors, (551), 188 states have internal predecessors, (551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 551 transitions.
[2021-06-01 18:46:10,493 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 551 transitions. Word has length 17
[2021-06-01 18:46:10,493 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,494 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 551 transitions.
[2021-06-01 18:46:10,494 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,494 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 551 transitions.
[2021-06-01 18:46:10,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,495 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,495 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,495 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75
[2021-06-01 18:46:10,495 INFO L430 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,495 INFO L82 PathProgramCache]: Analyzing trace with hash 412660612, now seen corresponding path program 45 times
[2021-06-01 18:46:10,495 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,495 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951887254]
[2021-06-01 18:46:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,531 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,531 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951887254]
[2021-06-01 18:46:10,532 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951887254] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,532 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093070870]
[2021-06-01 18:46:10,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,532 INFO L87 Difference]: Start difference. First operand 189 states and 551 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,630 INFO L93 Difference]: Finished difference Result 336 states and 921 transitions.
[2021-06-01 18:46:10,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,631 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,631 INFO L225 Difference]: With dead ends: 336
[2021-06-01 18:46:10,631 INFO L226 Difference]: Without dead ends: 321
[2021-06-01 18:46:10,631 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 61.7ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:10,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2021-06-01 18:46:10,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 183.
[2021-06-01 18:46:10,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 182 states have (on average 2.901098901098901) internal successors, (528), 182 states have internal predecessors, (528), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 528 transitions.
[2021-06-01 18:46:10,636 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 528 transitions. Word has length 17
[2021-06-01 18:46:10,636 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,636 INFO L482 AbstractCegarLoop]: Abstraction has 183 states and 528 transitions.
[2021-06-01 18:46:10,636 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,636 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 528 transitions.
[2021-06-01 18:46:10,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,636 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,637 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,637 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76
[2021-06-01 18:46:10,637 INFO L430 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,637 INFO L82 PathProgramCache]: Analyzing trace with hash 379489126, now seen corresponding path program 46 times
[2021-06-01 18:46:10,637 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,637 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1113096867]
[2021-06-01 18:46:10,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,671 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,671 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1113096867]
[2021-06-01 18:46:10,671 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1113096867] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,671 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,671 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150632834]
[2021-06-01 18:46:10,671 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,671 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,672 INFO L87 Difference]: Start difference. First operand 183 states and 528 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,755 INFO L93 Difference]: Finished difference Result 324 states and 889 transitions.
[2021-06-01 18:46:10,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,755 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,756 INFO L225 Difference]: With dead ends: 324
[2021-06-01 18:46:10,756 INFO L226 Difference]: Without dead ends: 309
[2021-06-01 18:46:10,756 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 64.2ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:10,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states.
[2021-06-01 18:46:10,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 189.
[2021-06-01 18:46:10,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 2.8882978723404253) internal successors, (543), 188 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 543 transitions.
[2021-06-01 18:46:10,759 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 543 transitions. Word has length 17
[2021-06-01 18:46:10,759 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,759 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 543 transitions.
[2021-06-01 18:46:10,759 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,759 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 543 transitions.
[2021-06-01 18:46:10,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,760 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,760 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77
[2021-06-01 18:46:10,760 INFO L430 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1252190110, now seen corresponding path program 47 times
[2021-06-01 18:46:10,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433121556]
[2021-06-01 18:46:10,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433121556]
[2021-06-01 18:46:10,801 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433121556] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,801 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489299539]
[2021-06-01 18:46:10,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,801 INFO L87 Difference]: Start difference. First operand 189 states and 543 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:10,897 INFO L93 Difference]: Finished difference Result 354 states and 954 transitions.
[2021-06-01 18:46:10,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:10,897 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:10,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:10,898 INFO L225 Difference]: With dead ends: 354
[2021-06-01 18:46:10,898 INFO L226 Difference]: Without dead ends: 339
[2021-06-01 18:46:10,898 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 63.8ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:10,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states.
[2021-06-01 18:46:10,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 191.
[2021-06-01 18:46:10,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 190 states have (on average 2.905263157894737) internal successors, (552), 190 states have internal predecessors, (552), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 552 transitions.
[2021-06-01 18:46:10,905 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 552 transitions. Word has length 17
[2021-06-01 18:46:10,906 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:10,906 INFO L482 AbstractCegarLoop]: Abstraction has 191 states and 552 transitions.
[2021-06-01 18:46:10,906 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:10,906 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 552 transitions.
[2021-06-01 18:46:10,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:10,906 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:10,906 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:10,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78
[2021-06-01 18:46:10,906 INFO L430 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:10,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:10,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1416992550, now seen corresponding path program 48 times
[2021-06-01 18:46:10,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:10,907 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157818315]
[2021-06-01 18:46:10,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:10,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:10,957 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:10,957 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157818315]
[2021-06-01 18:46:10,957 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157818315] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:10,957 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:10,958 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:10,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [410994863]
[2021-06-01 18:46:10,958 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:10,958 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:10,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:10,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:10,959 INFO L87 Difference]: Start difference. First operand 191 states and 552 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,052 INFO L93 Difference]: Finished difference Result 333 states and 916 transitions.
[2021-06-01 18:46:11,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,053 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,053 INFO L225 Difference]: With dead ends: 333
[2021-06-01 18:46:11,053 INFO L226 Difference]: Without dead ends: 318
[2021-06-01 18:46:11,054 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 66.3ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:11,054 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states.
[2021-06-01 18:46:11,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 189.
[2021-06-01 18:46:11,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 2.8882978723404253) internal successors, (543), 188 states have internal predecessors, (543), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 543 transitions.
[2021-06-01 18:46:11,058 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 543 transitions. Word has length 17
[2021-06-01 18:46:11,058 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,058 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 543 transitions.
[2021-06-01 18:46:11,058 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,058 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 543 transitions.
[2021-06-01 18:46:11,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,058 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,058 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,059 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79
[2021-06-01 18:46:11,059 INFO L430 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,059 INFO L82 PathProgramCache]: Analyzing trace with hash -167418646, now seen corresponding path program 49 times
[2021-06-01 18:46:11,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,059 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [182083842]
[2021-06-01 18:46:11,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,104 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,104 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [182083842]
[2021-06-01 18:46:11,104 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [182083842] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,104 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,104 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515275565]
[2021-06-01 18:46:11,104 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,104 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,104 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,105 INFO L87 Difference]: Start difference. First operand 189 states and 543 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,194 INFO L93 Difference]: Finished difference Result 386 states and 1068 transitions.
[2021-06-01 18:46:11,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,194 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,195 INFO L225 Difference]: With dead ends: 386
[2021-06-01 18:46:11,195 INFO L226 Difference]: Without dead ends: 371
[2021-06-01 18:46:11,195 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.8ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:11,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2021-06-01 18:46:11,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 194.
[2021-06-01 18:46:11,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 2.922279792746114) internal successors, (564), 193 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 564 transitions.
[2021-06-01 18:46:11,199 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 564 transitions. Word has length 17
[2021-06-01 18:46:11,199 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,199 INFO L482 AbstractCegarLoop]: Abstraction has 194 states and 564 transitions.
[2021-06-01 18:46:11,199 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,200 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 564 transitions.
[2021-06-01 18:46:11,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,200 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,200 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,200 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80
[2021-06-01 18:46:11,200 INFO L430 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1386054006, now seen corresponding path program 50 times
[2021-06-01 18:46:11,201 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,201 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077530168]
[2021-06-01 18:46:11,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,236 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077530168]
[2021-06-01 18:46:11,236 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077530168] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,236 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,236 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,236 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [186700197]
[2021-06-01 18:46:11,236 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,236 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,236 INFO L87 Difference]: Start difference. First operand 194 states and 564 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,322 INFO L93 Difference]: Finished difference Result 390 states and 1074 transitions.
[2021-06-01 18:46:11,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,322 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,323 INFO L225 Difference]: With dead ends: 390
[2021-06-01 18:46:11,323 INFO L226 Difference]: Without dead ends: 375
[2021-06-01 18:46:11,323 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.4ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:11,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 375 states.
[2021-06-01 18:46:11,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 375 to 192.
[2021-06-01 18:46:11,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.905759162303665) internal successors, (555), 191 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 555 transitions.
[2021-06-01 18:46:11,326 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 555 transitions. Word has length 17
[2021-06-01 18:46:11,326 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,326 INFO L482 AbstractCegarLoop]: Abstraction has 192 states and 555 transitions.
[2021-06-01 18:46:11,327 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,327 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 555 transitions.
[2021-06-01 18:46:11,327 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,327 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,327 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,327 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81
[2021-06-01 18:46:11,327 INFO L430 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,328 INFO L82 PathProgramCache]: Analyzing trace with hash -310342850, now seen corresponding path program 51 times
[2021-06-01 18:46:11,328 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,328 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307635270]
[2021-06-01 18:46:11,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,372 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,372 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307635270]
[2021-06-01 18:46:11,373 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307635270] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,373 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,373 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,373 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082943438]
[2021-06-01 18:46:11,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,373 INFO L87 Difference]: Start difference. First operand 192 states and 555 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,456 INFO L93 Difference]: Finished difference Result 386 states and 1060 transitions.
[2021-06-01 18:46:11,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,456 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,460 INFO L225 Difference]: With dead ends: 386
[2021-06-01 18:46:11,460 INFO L226 Difference]: Without dead ends: 371
[2021-06-01 18:46:11,461 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 61.8ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:11,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states.
[2021-06-01 18:46:11,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 192.
[2021-06-01 18:46:11,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.905759162303665) internal successors, (555), 191 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 555 transitions.
[2021-06-01 18:46:11,465 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 555 transitions. Word has length 17
[2021-06-01 18:46:11,465 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,465 INFO L482 AbstractCegarLoop]: Abstraction has 192 states and 555 transitions.
[2021-06-01 18:46:11,465 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,465 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 555 transitions.
[2021-06-01 18:46:11,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,466 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,466 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,466 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82
[2021-06-01 18:46:11,466 INFO L430 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,466 INFO L82 PathProgramCache]: Analyzing trace with hash -548101402, now seen corresponding path program 52 times
[2021-06-01 18:46:11,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682337443]
[2021-06-01 18:46:11,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682337443]
[2021-06-01 18:46:11,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682337443] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,507 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [136040707]
[2021-06-01 18:46:11,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,508 INFO L87 Difference]: Start difference. First operand 192 states and 555 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,593 INFO L93 Difference]: Finished difference Result 464 states and 1256 transitions.
[2021-06-01 18:46:11,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,593 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,594 INFO L225 Difference]: With dead ends: 464
[2021-06-01 18:46:11,594 INFO L226 Difference]: Without dead ends: 449
[2021-06-01 18:46:11,594 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 52.4ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:11,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states.
[2021-06-01 18:46:11,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 195.
[2021-06-01 18:46:11,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9381443298969074) internal successors, (570), 194 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 570 transitions.
[2021-06-01 18:46:11,598 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 570 transitions. Word has length 17
[2021-06-01 18:46:11,598 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,598 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 570 transitions.
[2021-06-01 18:46:11,598 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,598 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 570 transitions.
[2021-06-01 18:46:11,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,599 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,599 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83
[2021-06-01 18:46:11,599 INFO L430 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,599 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,599 INFO L82 PathProgramCache]: Analyzing trace with hash -1766736762, now seen corresponding path program 53 times
[2021-06-01 18:46:11,599 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,599 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750990668]
[2021-06-01 18:46:11,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750990668]
[2021-06-01 18:46:11,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750990668] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949776372]
[2021-06-01 18:46:11,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,636 INFO L87 Difference]: Start difference. First operand 195 states and 570 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,736 INFO L93 Difference]: Finished difference Result 468 states and 1262 transitions.
[2021-06-01 18:46:11,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,736 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,737 INFO L225 Difference]: With dead ends: 468
[2021-06-01 18:46:11,737 INFO L226 Difference]: Without dead ends: 453
[2021-06-01 18:46:11,737 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 53.0ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:11,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states.
[2021-06-01 18:46:11,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 193.
[2021-06-01 18:46:11,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 2.921875) internal successors, (561), 192 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 561 transitions.
[2021-06-01 18:46:11,742 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 561 transitions. Word has length 17
[2021-06-01 18:46:11,742 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,742 INFO L482 AbstractCegarLoop]: Abstraction has 193 states and 561 transitions.
[2021-06-01 18:46:11,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,743 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 561 transitions.
[2021-06-01 18:46:11,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,743 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,744 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,744 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84
[2021-06-01 18:46:11,745 INFO L430 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,745 INFO L82 PathProgramCache]: Analyzing trace with hash 440959146, now seen corresponding path program 54 times
[2021-06-01 18:46:11,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,746 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800557780]
[2021-06-01 18:46:11,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,782 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,782 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800557780]
[2021-06-01 18:46:11,782 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800557780] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,782 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,782 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,782 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755989903]
[2021-06-01 18:46:11,782 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,783 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,783 INFO L87 Difference]: Start difference. First operand 193 states and 561 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:11,870 INFO L93 Difference]: Finished difference Result 431 states and 1182 transitions.
[2021-06-01 18:46:11,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:11,871 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:11,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:11,871 INFO L225 Difference]: With dead ends: 431
[2021-06-01 18:46:11,871 INFO L226 Difference]: Without dead ends: 416
[2021-06-01 18:46:11,872 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 51.3ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:11,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states.
[2021-06-01 18:46:11,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 196.
[2021-06-01 18:46:11,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.948717948717949) internal successors, (575), 195 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 575 transitions.
[2021-06-01 18:46:11,876 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 575 transitions. Word has length 17
[2021-06-01 18:46:11,876 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:11,876 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 575 transitions.
[2021-06-01 18:46:11,876 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:11,876 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 575 transitions.
[2021-06-01 18:46:11,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:11,877 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:11,877 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:11,877 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85
[2021-06-01 18:46:11,877 INFO L430 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:11,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:11,877 INFO L82 PathProgramCache]: Analyzing trace with hash -729229850, now seen corresponding path program 55 times
[2021-06-01 18:46:11,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:11,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545218227]
[2021-06-01 18:46:11,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:11,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:11,912 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:11,912 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:11,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545218227]
[2021-06-01 18:46:11,913 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545218227] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:11,913 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:11,913 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:11,913 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1998551630]
[2021-06-01 18:46:11,913 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:11,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:11,913 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:11,913 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:11,913 INFO L87 Difference]: Start difference. First operand 196 states and 575 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,011 INFO L93 Difference]: Finished difference Result 415 states and 1159 transitions.
[2021-06-01 18:46:12,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,011 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,012 INFO L225 Difference]: With dead ends: 415
[2021-06-01 18:46:12,012 INFO L226 Difference]: Without dead ends: 400
[2021-06-01 18:46:12,012 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 49.3ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:12,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states.
[2021-06-01 18:46:12,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 193.
[2021-06-01 18:46:12,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193 states, 192 states have (on average 2.921875) internal successors, (561), 192 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193 states to 193 states and 561 transitions.
[2021-06-01 18:46:12,015 INFO L78 Accepts]: Start accepts. Automaton has 193 states and 561 transitions. Word has length 17
[2021-06-01 18:46:12,016 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,016 INFO L482 AbstractCegarLoop]: Abstraction has 193 states and 561 transitions.
[2021-06-01 18:46:12,016 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,016 INFO L276 IsEmpty]: Start isEmpty. Operand 193 states and 561 transitions.
[2021-06-01 18:46:12,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,016 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,016 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86
[2021-06-01 18:46:12,016 INFO L430 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,017 INFO L82 PathProgramCache]: Analyzing trace with hash -746166902, now seen corresponding path program 56 times
[2021-06-01 18:46:12,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,017 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224945303]
[2021-06-01 18:46:12,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,051 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,051 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224945303]
[2021-06-01 18:46:12,052 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224945303] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,052 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,052 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,052 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511793219]
[2021-06-01 18:46:12,052 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,052 INFO L87 Difference]: Start difference. First operand 193 states and 561 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,138 INFO L93 Difference]: Finished difference Result 449 states and 1229 transitions.
[2021-06-01 18:46:12,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,138 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,139 INFO L225 Difference]: With dead ends: 449
[2021-06-01 18:46:12,139 INFO L226 Difference]: Without dead ends: 434
[2021-06-01 18:46:12,139 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 48.2ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:12,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 434 states.
[2021-06-01 18:46:12,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 434 to 195.
[2021-06-01 18:46:12,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9381443298969074) internal successors, (570), 194 states have internal predecessors, (570), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 570 transitions.
[2021-06-01 18:46:12,144 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 570 transitions. Word has length 17
[2021-06-01 18:46:12,144 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,145 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 570 transitions.
[2021-06-01 18:46:12,145 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,145 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 570 transitions.
[2021-06-01 18:46:12,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,145 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,145 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,145 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87
[2021-06-01 18:46:12,145 INFO L430 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,146 INFO L82 PathProgramCache]: Analyzing trace with hash 394116934, now seen corresponding path program 57 times
[2021-06-01 18:46:12,146 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,146 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141671736]
[2021-06-01 18:46:12,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,180 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141671736]
[2021-06-01 18:46:12,181 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141671736] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153953308]
[2021-06-01 18:46:12,181 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,181 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,181 INFO L87 Difference]: Start difference. First operand 195 states and 570 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,272 INFO L93 Difference]: Finished difference Result 428 states and 1191 transitions.
[2021-06-01 18:46:12,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,272 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,277 INFO L225 Difference]: With dead ends: 428
[2021-06-01 18:46:12,277 INFO L226 Difference]: Without dead ends: 413
[2021-06-01 18:46:12,277 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 48.8ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:12,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states.
[2021-06-01 18:46:12,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 192.
[2021-06-01 18:46:12,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.905759162303665) internal successors, (555), 191 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 555 transitions.
[2021-06-01 18:46:12,282 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 555 transitions. Word has length 17
[2021-06-01 18:46:12,282 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,282 INFO L482 AbstractCegarLoop]: Abstraction has 192 states and 555 transitions.
[2021-06-01 18:46:12,283 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,283 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 555 transitions.
[2021-06-01 18:46:12,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,283 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,283 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,283 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88
[2021-06-01 18:46:12,283 INFO L430 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,284 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1262551738, now seen corresponding path program 58 times
[2021-06-01 18:46:12,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,284 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269575477]
[2021-06-01 18:46:12,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,329 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,330 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,330 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269575477]
[2021-06-01 18:46:12,330 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269575477] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,330 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,330 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,330 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152152442]
[2021-06-01 18:46:12,330 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,330 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,331 INFO L87 Difference]: Start difference. First operand 192 states and 555 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,429 INFO L93 Difference]: Finished difference Result 429 states and 1161 transitions.
[2021-06-01 18:46:12,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,430 INFO L225 Difference]: With dead ends: 429
[2021-06-01 18:46:12,430 INFO L226 Difference]: Without dead ends: 414
[2021-06-01 18:46:12,430 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:12,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states.
[2021-06-01 18:46:12,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 194.
[2021-06-01 18:46:12,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 193 states have (on average 2.911917098445596) internal successors, (562), 193 states have internal predecessors, (562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 562 transitions.
[2021-06-01 18:46:12,435 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 562 transitions. Word has length 17
[2021-06-01 18:46:12,435 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,435 INFO L482 AbstractCegarLoop]: Abstraction has 194 states and 562 transitions.
[2021-06-01 18:46:12,435 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,435 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 562 transitions.
[2021-06-01 18:46:12,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,436 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,436 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89
[2021-06-01 18:46:12,436 INFO L430 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,436 INFO L82 PathProgramCache]: Analyzing trace with hash -2074864322, now seen corresponding path program 59 times
[2021-06-01 18:46:12,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047173076]
[2021-06-01 18:46:12,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,475 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,475 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047173076]
[2021-06-01 18:46:12,475 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047173076] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,475 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,475 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,475 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48471120]
[2021-06-01 18:46:12,475 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,475 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,476 INFO L87 Difference]: Start difference. First operand 194 states and 562 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,569 INFO L93 Difference]: Finished difference Result 430 states and 1172 transitions.
[2021-06-01 18:46:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,570 INFO L225 Difference]: With dead ends: 430
[2021-06-01 18:46:12,570 INFO L226 Difference]: Without dead ends: 415
[2021-06-01 18:46:12,570 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.7ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:12,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states.
[2021-06-01 18:46:12,573 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 196.
[2021-06-01 18:46:12,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.928205128205128) internal successors, (571), 195 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 571 transitions.
[2021-06-01 18:46:12,574 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 571 transitions. Word has length 17
[2021-06-01 18:46:12,574 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,574 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 571 transitions.
[2021-06-01 18:46:12,574 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,574 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 571 transitions.
[2021-06-01 18:46:12,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,575 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,575 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,575 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90
[2021-06-01 18:46:12,575 INFO L430 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,575 INFO L82 PathProgramCache]: Analyzing trace with hash -934580486, now seen corresponding path program 60 times
[2021-06-01 18:46:12,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [719927864]
[2021-06-01 18:46:12,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,610 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,610 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,610 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [719927864]
[2021-06-01 18:46:12,611 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [719927864] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,611 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,611 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,611 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419768924]
[2021-06-01 18:46:12,611 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,611 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,612 INFO L87 Difference]: Start difference. First operand 196 states and 571 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,710 INFO L93 Difference]: Finished difference Result 409 states and 1134 transitions.
[2021-06-01 18:46:12,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,711 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,711 INFO L225 Difference]: With dead ends: 409
[2021-06-01 18:46:12,711 INFO L226 Difference]: Without dead ends: 394
[2021-06-01 18:46:12,711 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.8ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:12,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states.
[2021-06-01 18:46:12,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 192.
[2021-06-01 18:46:12,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 192 states, 191 states have (on average 2.905759162303665) internal successors, (555), 191 states have internal predecessors, (555), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 555 transitions.
[2021-06-01 18:46:12,716 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 555 transitions. Word has length 17
[2021-06-01 18:46:12,716 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,716 INFO L482 AbstractCegarLoop]: Abstraction has 192 states and 555 transitions.
[2021-06-01 18:46:12,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,716 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 555 transitions.
[2021-06-01 18:46:12,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,717 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,717 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,717 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91
[2021-06-01 18:46:12,717 INFO L430 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,717 INFO L82 PathProgramCache]: Analyzing trace with hash -674451760, now seen corresponding path program 61 times
[2021-06-01 18:46:12,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [426275054]
[2021-06-01 18:46:12,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,750 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,750 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [426275054]
[2021-06-01 18:46:12,750 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [426275054] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,750 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,750 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760007104]
[2021-06-01 18:46:12,750 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,751 INFO L87 Difference]: Start difference. First operand 192 states and 555 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,825 INFO L93 Difference]: Finished difference Result 328 states and 903 transitions.
[2021-06-01 18:46:12,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,825 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,826 INFO L225 Difference]: With dead ends: 328
[2021-06-01 18:46:12,826 INFO L226 Difference]: Without dead ends: 313
[2021-06-01 18:46:12,826 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 56.3ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:12,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states.
[2021-06-01 18:46:12,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 197.
[2021-06-01 18:46:12,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.913265306122449) internal successors, (571), 196 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 571 transitions.
[2021-06-01 18:46:12,830 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 571 transitions. Word has length 17
[2021-06-01 18:46:12,831 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,831 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 571 transitions.
[2021-06-01 18:46:12,831 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,831 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 571 transitions.
[2021-06-01 18:46:12,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,831 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,831 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,831 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92
[2021-06-01 18:46:12,831 INFO L430 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1924375180, now seen corresponding path program 62 times
[2021-06-01 18:46:12,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122415756]
[2021-06-01 18:46:12,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:12,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:12,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:12,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122415756]
[2021-06-01 18:46:12,880 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122415756] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:12,880 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:12,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:12,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071199058]
[2021-06-01 18:46:12,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:12,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:12,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:12,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:12,881 INFO L87 Difference]: Start difference. First operand 197 states and 571 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:12,974 INFO L93 Difference]: Finished difference Result 357 states and 963 transitions.
[2021-06-01 18:46:12,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:12,975 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:12,975 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:12,977 INFO L225 Difference]: With dead ends: 357
[2021-06-01 18:46:12,977 INFO L226 Difference]: Without dead ends: 342
[2021-06-01 18:46:12,977 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 62.0ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:12,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states.
[2021-06-01 18:46:12,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 199.
[2021-06-01 18:46:12,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9292929292929295) internal successors, (580), 198 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 580 transitions.
[2021-06-01 18:46:12,988 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 580 transitions. Word has length 17
[2021-06-01 18:46:12,989 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:12,989 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 580 transitions.
[2021-06-01 18:46:12,989 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:12,989 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 580 transitions.
[2021-06-01 18:46:12,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:12,990 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:12,990 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:12,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93
[2021-06-01 18:46:12,990 INFO L430 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:12,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:12,990 INFO L82 PathProgramCache]: Analyzing trace with hash 1151956756, now seen corresponding path program 63 times
[2021-06-01 18:46:12,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:12,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252367370]
[2021-06-01 18:46:12,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:12,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,027 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,027 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252367370]
[2021-06-01 18:46:13,027 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252367370] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,027 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,027 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267576706]
[2021-06-01 18:46:13,028 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,028 INFO L87 Difference]: Start difference. First operand 199 states and 580 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,130 INFO L93 Difference]: Finished difference Result 334 states and 918 transitions.
[2021-06-01 18:46:13,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,130 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,131 INFO L225 Difference]: With dead ends: 334
[2021-06-01 18:46:13,131 INFO L226 Difference]: Without dead ends: 319
[2021-06-01 18:46:13,131 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 64.0ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:13,131 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states.
[2021-06-01 18:46:13,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 195.
[2021-06-01 18:46:13,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9072164948453607) internal successors, (564), 194 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 564 transitions.
[2021-06-01 18:46:13,134 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 564 transitions. Word has length 17
[2021-06-01 18:46:13,134 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,134 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 564 transitions.
[2021-06-01 18:46:13,134 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,134 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 564 transitions.
[2021-06-01 18:46:13,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,135 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,135 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94
[2021-06-01 18:46:13,135 INFO L430 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,135 INFO L82 PathProgramCache]: Analyzing trace with hash 263807996, now seen corresponding path program 64 times
[2021-06-01 18:46:13,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432176410]
[2021-06-01 18:46:13,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432176410]
[2021-06-01 18:46:13,179 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432176410] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,179 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,179 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082365518]
[2021-06-01 18:46:13,179 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,180 INFO L87 Difference]: Start difference. First operand 195 states and 564 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,285 INFO L93 Difference]: Finished difference Result 349 states and 945 transitions.
[2021-06-01 18:46:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,286 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,287 INFO L225 Difference]: With dead ends: 349
[2021-06-01 18:46:13,287 INFO L226 Difference]: Without dead ends: 334
[2021-06-01 18:46:13,287 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 76.8ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:13,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states.
[2021-06-01 18:46:13,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 199.
[2021-06-01 18:46:13,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9292929292929295) internal successors, (580), 198 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 580 transitions.
[2021-06-01 18:46:13,292 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 580 transitions. Word has length 17
[2021-06-01 18:46:13,292 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,292 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 580 transitions.
[2021-06-01 18:46:13,292 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,292 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 580 transitions.
[2021-06-01 18:46:13,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,293 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,293 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,293 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95
[2021-06-01 18:46:13,293 INFO L430 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,293 INFO L82 PathProgramCache]: Analyzing trace with hash -954827364, now seen corresponding path program 65 times
[2021-06-01 18:46:13,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,294 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679443316]
[2021-06-01 18:46:13,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,349 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,349 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679443316]
[2021-06-01 18:46:13,349 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679443316] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,349 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,349 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848545438]
[2021-06-01 18:46:13,350 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,350 INFO L87 Difference]: Start difference. First operand 199 states and 580 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,456 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,456 INFO L93 Difference]: Finished difference Result 353 states and 951 transitions.
[2021-06-01 18:46:13,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,457 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,458 INFO L225 Difference]: With dead ends: 353
[2021-06-01 18:46:13,458 INFO L226 Difference]: Without dead ends: 338
[2021-06-01 18:46:13,458 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 73.7ms TimeCoverageRelationStatistics Valid=56, Invalid=100, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:13,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 338 states.
[2021-06-01 18:46:13,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 338 to 197.
[2021-06-01 18:46:13,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.913265306122449) internal successors, (571), 196 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 571 transitions.
[2021-06-01 18:46:13,466 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 571 transitions. Word has length 17
[2021-06-01 18:46:13,466 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,466 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 571 transitions.
[2021-06-01 18:46:13,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,466 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 571 transitions.
[2021-06-01 18:46:13,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,467 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,467 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96
[2021-06-01 18:46:13,467 INFO L430 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,467 INFO L82 PathProgramCache]: Analyzing trace with hash 120883792, now seen corresponding path program 66 times
[2021-06-01 18:46:13,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012017237]
[2021-06-01 18:46:13,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,514 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012017237]
[2021-06-01 18:46:13,514 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012017237] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,514 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,514 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,514 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1135621586]
[2021-06-01 18:46:13,514 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,515 INFO L87 Difference]: Start difference. First operand 197 states and 571 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,619 INFO L93 Difference]: Finished difference Result 324 states and 891 transitions.
[2021-06-01 18:46:13,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,619 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,620 INFO L225 Difference]: With dead ends: 324
[2021-06-01 18:46:13,620 INFO L226 Difference]: Without dead ends: 309
[2021-06-01 18:46:13,620 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 72.5ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 309 states.
[2021-06-01 18:46:13,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 309 to 195.
[2021-06-01 18:46:13,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9072164948453607) internal successors, (564), 194 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 564 transitions.
[2021-06-01 18:46:13,625 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 564 transitions. Word has length 17
[2021-06-01 18:46:13,625 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,625 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 564 transitions.
[2021-06-01 18:46:13,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,625 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 564 transitions.
[2021-06-01 18:46:13,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,625 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,625 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,625 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97
[2021-06-01 18:46:13,626 INFO L430 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,626 INFO L82 PathProgramCache]: Analyzing trace with hash 409284692, now seen corresponding path program 67 times
[2021-06-01 18:46:13,626 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,626 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125966640]
[2021-06-01 18:46:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125966640]
[2021-06-01 18:46:13,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125966640] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561830632]
[2021-06-01 18:46:13,663 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,663 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,663 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,663 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,663 INFO L87 Difference]: Start difference. First operand 195 states and 564 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,770 INFO L93 Difference]: Finished difference Result 442 states and 1201 transitions.
[2021-06-01 18:46:13,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,770 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,771 INFO L225 Difference]: With dead ends: 442
[2021-06-01 18:46:13,771 INFO L226 Difference]: Without dead ends: 427
[2021-06-01 18:46:13,771 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.3ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:13,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2021-06-01 18:46:13,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 198.
[2021-06-01 18:46:13,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.9238578680203045) internal successors, (576), 197 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 576 transitions.
[2021-06-01 18:46:13,781 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 576 transitions. Word has length 17
[2021-06-01 18:46:13,781 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,781 INFO L482 AbstractCegarLoop]: Abstraction has 198 states and 576 transitions.
[2021-06-01 18:46:13,781 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,781 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 576 transitions.
[2021-06-01 18:46:13,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,781 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,781 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,782 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98
[2021-06-01 18:46:13,782 INFO L430 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,782 INFO L82 PathProgramCache]: Analyzing trace with hash -840638728, now seen corresponding path program 68 times
[2021-06-01 18:46:13,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,782 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773129227]
[2021-06-01 18:46:13,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,822 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,822 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773129227]
[2021-06-01 18:46:13,822 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773129227] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,822 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,822 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1148201720]
[2021-06-01 18:46:13,823 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,823 INFO L87 Difference]: Start difference. First operand 198 states and 576 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:13,929 INFO L93 Difference]: Finished difference Result 465 states and 1248 transitions.
[2021-06-01 18:46:13,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:13,929 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:13,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:13,930 INFO L225 Difference]: With dead ends: 465
[2021-06-01 18:46:13,930 INFO L226 Difference]: Without dead ends: 450
[2021-06-01 18:46:13,930 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 65.3ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:13,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 450 states.
[2021-06-01 18:46:13,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 450 to 200.
[2021-06-01 18:46:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.9396984924623117) internal successors, (585), 199 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 585 transitions.
[2021-06-01 18:46:13,935 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 585 transitions. Word has length 17
[2021-06-01 18:46:13,935 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:13,935 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 585 transitions.
[2021-06-01 18:46:13,935 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:13,935 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 585 transitions.
[2021-06-01 18:46:13,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:13,936 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:13,936 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:13,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99
[2021-06-01 18:46:13,936 INFO L430 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:13,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:13,936 INFO L82 PathProgramCache]: Analyzing trace with hash -2059274088, now seen corresponding path program 69 times
[2021-06-01 18:46:13,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:13,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822738881]
[2021-06-01 18:46:13,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:13,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:13,975 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:13,975 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822738881]
[2021-06-01 18:46:13,975 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [822738881] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:13,976 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:13,976 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:13,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886320678]
[2021-06-01 18:46:13,976 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:13,976 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:13,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:13,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:13,976 INFO L87 Difference]: Start difference. First operand 200 states and 585 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,093 INFO L93 Difference]: Finished difference Result 442 states and 1203 transitions.
[2021-06-01 18:46:14,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,093 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,094 INFO L225 Difference]: With dead ends: 442
[2021-06-01 18:46:14,094 INFO L226 Difference]: Without dead ends: 427
[2021-06-01 18:46:14,094 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:14,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states.
[2021-06-01 18:46:14,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 196.
[2021-06-01 18:46:14,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.917948717948718) internal successors, (569), 195 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 569 transitions.
[2021-06-01 18:46:14,098 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 569 transitions. Word has length 17
[2021-06-01 18:46:14,098 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,098 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 569 transitions.
[2021-06-01 18:46:14,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,099 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 569 transitions.
[2021-06-01 18:46:14,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,099 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,099 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,099 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100
[2021-06-01 18:46:14,099 INFO L430 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1005390608, now seen corresponding path program 70 times
[2021-06-01 18:46:14,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,100 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1195399395]
[2021-06-01 18:46:14,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,133 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,133 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1195399395]
[2021-06-01 18:46:14,133 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1195399395] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,134 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,134 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790409725]
[2021-06-01 18:46:14,134 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,134 INFO L87 Difference]: Start difference. First operand 196 states and 569 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,218 INFO L93 Difference]: Finished difference Result 393 states and 1085 transitions.
[2021-06-01 18:46:14,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,219 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,219 INFO L225 Difference]: With dead ends: 393
[2021-06-01 18:46:14,219 INFO L226 Difference]: Without dead ends: 378
[2021-06-01 18:46:14,219 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 57.6ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:14,220 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states.
[2021-06-01 18:46:14,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 199.
[2021-06-01 18:46:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9292929292929295) internal successors, (580), 198 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 580 transitions.
[2021-06-01 18:46:14,224 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 580 transitions. Word has length 17
[2021-06-01 18:46:14,224 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,224 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 580 transitions.
[2021-06-01 18:46:14,224 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,224 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 580 transitions.
[2021-06-01 18:46:14,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,224 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,224 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,225 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101
[2021-06-01 18:46:14,225 INFO L430 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,225 INFO L82 PathProgramCache]: Analyzing trace with hash 184219092, now seen corresponding path program 71 times
[2021-06-01 18:46:14,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,225 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111033579]
[2021-06-01 18:46:14,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111033579]
[2021-06-01 18:46:14,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111033579] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976097897]
[2021-06-01 18:46:14,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,267 INFO L87 Difference]: Start difference. First operand 199 states and 580 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,350 INFO L93 Difference]: Finished difference Result 391 states and 1089 transitions.
[2021-06-01 18:46:14,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,350 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,351 INFO L225 Difference]: With dead ends: 391
[2021-06-01 18:46:14,351 INFO L226 Difference]: Without dead ends: 376
[2021-06-01 18:46:14,351 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 58.1ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:14,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 376 states.
[2021-06-01 18:46:14,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 376 to 202.
[2021-06-01 18:46:14,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 201 states have (on average 2.955223880597015) internal successors, (594), 201 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 594 transitions.
[2021-06-01 18:46:14,355 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 594 transitions. Word has length 17
[2021-06-01 18:46:14,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,355 INFO L482 AbstractCegarLoop]: Abstraction has 202 states and 594 transitions.
[2021-06-01 18:46:14,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,355 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 594 transitions.
[2021-06-01 18:46:14,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,355 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,355 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102
[2021-06-01 18:46:14,356 INFO L430 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,356 INFO L82 PathProgramCache]: Analyzing trace with hash -1514501296, now seen corresponding path program 72 times
[2021-06-01 18:46:14,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441551131]
[2021-06-01 18:46:14,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,400 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,400 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441551131]
[2021-06-01 18:46:14,400 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441551131] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,400 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,400 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831897783]
[2021-06-01 18:46:14,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,401 INFO L87 Difference]: Start difference. First operand 202 states and 594 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,498 INFO L93 Difference]: Finished difference Result 368 states and 1044 transitions.
[2021-06-01 18:46:14,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,499 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,499 INFO L225 Difference]: With dead ends: 368
[2021-06-01 18:46:14,499 INFO L226 Difference]: Without dead ends: 353
[2021-06-01 18:46:14,499 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 54.8ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:14,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states.
[2021-06-01 18:46:14,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 196.
[2021-06-01 18:46:14,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.917948717948718) internal successors, (569), 195 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 569 transitions.
[2021-06-01 18:46:14,503 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 569 transitions. Word has length 17
[2021-06-01 18:46:14,503 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,503 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 569 transitions.
[2021-06-01 18:46:14,504 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 569 transitions.
[2021-06-01 18:46:14,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,504 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,504 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103
[2021-06-01 18:46:14,504 INFO L430 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,505 INFO L82 PathProgramCache]: Analyzing trace with hash 81063412, now seen corresponding path program 73 times
[2021-06-01 18:46:14,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224489195]
[2021-06-01 18:46:14,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224489195]
[2021-06-01 18:46:14,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224489195] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,546 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,546 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,546 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254164868]
[2021-06-01 18:46:14,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,547 INFO L87 Difference]: Start difference. First operand 196 states and 569 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,637 INFO L93 Difference]: Finished difference Result 445 states and 1229 transitions.
[2021-06-01 18:46:14,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,637 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,638 INFO L225 Difference]: With dead ends: 445
[2021-06-01 18:46:14,638 INFO L226 Difference]: Without dead ends: 430
[2021-06-01 18:46:14,638 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 53.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:14,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states.
[2021-06-01 18:46:14,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 199.
[2021-06-01 18:46:14,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9494949494949494) internal successors, (584), 198 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 584 transitions.
[2021-06-01 18:46:14,642 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 584 transitions. Word has length 17
[2021-06-01 18:46:14,642 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,642 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 584 transitions.
[2021-06-01 18:46:14,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,642 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 584 transitions.
[2021-06-01 18:46:14,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,643 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,643 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104
[2021-06-01 18:46:14,643 INFO L430 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,643 INFO L82 PathProgramCache]: Analyzing trace with hash -1137571948, now seen corresponding path program 74 times
[2021-06-01 18:46:14,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931531538]
[2021-06-01 18:46:14,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,681 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,681 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931531538]
[2021-06-01 18:46:14,681 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931531538] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,681 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,682 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,682 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784949076]
[2021-06-01 18:46:14,682 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,682 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,682 INFO L87 Difference]: Start difference. First operand 199 states and 584 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,774 INFO L93 Difference]: Finished difference Result 443 states and 1222 transitions.
[2021-06-01 18:46:14,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,775 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,775 INFO L225 Difference]: With dead ends: 443
[2021-06-01 18:46:14,775 INFO L226 Difference]: Without dead ends: 428
[2021-06-01 18:46:14,775 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 47.3ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:14,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states.
[2021-06-01 18:46:14,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 197.
[2021-06-01 18:46:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.933673469387755) internal successors, (575), 196 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 575 transitions.
[2021-06-01 18:46:14,778 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 575 transitions. Word has length 17
[2021-06-01 18:46:14,778 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,778 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 575 transitions.
[2021-06-01 18:46:14,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,778 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 575 transitions.
[2021-06-01 18:46:14,779 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,779 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,779 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,779 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105
[2021-06-01 18:46:14,779 INFO L430 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1070123960, now seen corresponding path program 75 times
[2021-06-01 18:46:14,779 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,779 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [637979653]
[2021-06-01 18:46:14,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,828 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,828 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [637979653]
[2021-06-01 18:46:14,828 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [637979653] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,828 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,829 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806781218]
[2021-06-01 18:46:14,829 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,829 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,829 INFO L87 Difference]: Start difference. First operand 197 states and 575 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:14,933 INFO L93 Difference]: Finished difference Result 437 states and 1201 transitions.
[2021-06-01 18:46:14,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:14,933 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:14,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:14,934 INFO L225 Difference]: With dead ends: 437
[2021-06-01 18:46:14,934 INFO L226 Difference]: Without dead ends: 422
[2021-06-01 18:46:14,934 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 57.7ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:14,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states.
[2021-06-01 18:46:14,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 200.
[2021-06-01 18:46:14,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.959798994974874) internal successors, (589), 199 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 589 transitions.
[2021-06-01 18:46:14,939 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 589 transitions. Word has length 17
[2021-06-01 18:46:14,939 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:14,939 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 589 transitions.
[2021-06-01 18:46:14,939 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:14,939 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 589 transitions.
[2021-06-01 18:46:14,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:14,939 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:14,939 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:14,940 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106
[2021-06-01 18:46:14,940 INFO L430 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:14,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:14,940 INFO L82 PathProgramCache]: Analyzing trace with hash -100065036, now seen corresponding path program 76 times
[2021-06-01 18:46:14,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:14,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474893810]
[2021-06-01 18:46:14,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:14,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:14,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:14,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:14,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474893810]
[2021-06-01 18:46:14,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474893810] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:14,985 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:14,985 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:14,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1870453529]
[2021-06-01 18:46:14,986 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:14,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:14,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:14,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:14,986 INFO L87 Difference]: Start difference. First operand 200 states and 589 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,108 INFO L93 Difference]: Finished difference Result 421 states and 1178 transitions.
[2021-06-01 18:46:15,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,109 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,110 INFO L225 Difference]: With dead ends: 421
[2021-06-01 18:46:15,110 INFO L226 Difference]: Without dead ends: 406
[2021-06-01 18:46:15,110 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.2ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:15,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states.
[2021-06-01 18:46:15,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 197.
[2021-06-01 18:46:15,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.933673469387755) internal successors, (575), 196 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 575 transitions.
[2021-06-01 18:46:15,114 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 575 transitions. Word has length 17
[2021-06-01 18:46:15,114 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,115 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 575 transitions.
[2021-06-01 18:46:15,115 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,115 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 575 transitions.
[2021-06-01 18:46:15,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,115 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,115 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,115 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107
[2021-06-01 18:46:15,115 INFO L430 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,116 INFO L82 PathProgramCache]: Analyzing trace with hash -117002088, now seen corresponding path program 77 times
[2021-06-01 18:46:15,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,117 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094113308]
[2021-06-01 18:46:15,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,160 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,160 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094113308]
[2021-06-01 18:46:15,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094113308] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,161 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,161 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989864480]
[2021-06-01 18:46:15,161 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,161 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,161 INFO L87 Difference]: Start difference. First operand 197 states and 575 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,259 INFO L93 Difference]: Finished difference Result 405 states and 1129 transitions.
[2021-06-01 18:46:15,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,259 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,260 INFO L225 Difference]: With dead ends: 405
[2021-06-01 18:46:15,260 INFO L226 Difference]: Without dead ends: 390
[2021-06-01 18:46:15,260 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 59.3ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:15,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states.
[2021-06-01 18:46:15,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 199.
[2021-06-01 18:46:15,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9494949494949494) internal successors, (584), 198 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 584 transitions.
[2021-06-01 18:46:15,264 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 584 transitions. Word has length 17
[2021-06-01 18:46:15,264 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,264 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 584 transitions.
[2021-06-01 18:46:15,264 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,264 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 584 transitions.
[2021-06-01 18:46:15,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,265 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,265 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108
[2021-06-01 18:46:15,265 INFO L430 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1023281748, now seen corresponding path program 78 times
[2021-06-01 18:46:15,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853177429]
[2021-06-01 18:46:15,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,312 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,313 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853177429]
[2021-06-01 18:46:15,313 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [853177429] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,313 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,313 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,313 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271509387]
[2021-06-01 18:46:15,313 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,314 INFO L87 Difference]: Start difference. First operand 199 states and 584 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,408 INFO L93 Difference]: Finished difference Result 384 states and 1091 transitions.
[2021-06-01 18:46:15,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,408 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,409 INFO L225 Difference]: With dead ends: 384
[2021-06-01 18:46:15,409 INFO L226 Difference]: Without dead ends: 369
[2021-06-01 18:46:15,409 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.0ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:15,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states.
[2021-06-01 18:46:15,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 195.
[2021-06-01 18:46:15,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9072164948453607) internal successors, (564), 194 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 564 transitions.
[2021-06-01 18:46:15,413 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 564 transitions. Word has length 17
[2021-06-01 18:46:15,413 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,413 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 564 transitions.
[2021-06-01 18:46:15,413 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,413 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 564 transitions.
[2021-06-01 18:46:15,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,414 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,414 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,414 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109
[2021-06-01 18:46:15,414 INFO L430 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1228196736, now seen corresponding path program 79 times
[2021-06-01 18:46:15,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [269332541]
[2021-06-01 18:46:15,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,457 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,457 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [269332541]
[2021-06-01 18:46:15,457 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [269332541] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,457 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,457 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,457 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1844468918]
[2021-06-01 18:46:15,457 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,457 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,457 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,457 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,458 INFO L87 Difference]: Start difference. First operand 195 states and 564 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,563 INFO L93 Difference]: Finished difference Result 425 states and 1163 transitions.
[2021-06-01 18:46:15,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,563 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,564 INFO L225 Difference]: With dead ends: 425
[2021-06-01 18:46:15,564 INFO L226 Difference]: Without dead ends: 410
[2021-06-01 18:46:15,564 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:15,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states.
[2021-06-01 18:46:15,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 200.
[2021-06-01 18:46:15,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.9396984924623117) internal successors, (585), 199 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 585 transitions.
[2021-06-01 18:46:15,569 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 585 transitions. Word has length 17
[2021-06-01 18:46:15,569 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,569 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 585 transitions.
[2021-06-01 18:46:15,569 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,569 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 585 transitions.
[2021-06-01 18:46:15,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,569 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,569 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110
[2021-06-01 18:46:15,570 INFO L430 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,570 INFO L82 PathProgramCache]: Analyzing trace with hash 1848135200, now seen corresponding path program 80 times
[2021-06-01 18:46:15,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912407608]
[2021-06-01 18:46:15,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912407608]
[2021-06-01 18:46:15,623 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912407608] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568837194]
[2021-06-01 18:46:15,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,624 INFO L87 Difference]: Start difference. First operand 200 states and 585 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,740 INFO L93 Difference]: Finished difference Result 429 states and 1169 transitions.
[2021-06-01 18:46:15,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,740 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,741 INFO L225 Difference]: With dead ends: 429
[2021-06-01 18:46:15,741 INFO L226 Difference]: Without dead ends: 414
[2021-06-01 18:46:15,741 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 66.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:15,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states.
[2021-06-01 18:46:15,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 198.
[2021-06-01 18:46:15,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.9238578680203045) internal successors, (576), 197 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,745 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 576 transitions.
[2021-06-01 18:46:15,746 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 576 transitions. Word has length 17
[2021-06-01 18:46:15,746 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,746 INFO L482 AbstractCegarLoop]: Abstraction has 198 states and 576 transitions.
[2021-06-01 18:46:15,746 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,746 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 576 transitions.
[2021-06-01 18:46:15,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,746 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,746 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111
[2021-06-01 18:46:15,746 INFO L430 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,747 INFO L82 PathProgramCache]: Analyzing trace with hash -1371120940, now seen corresponding path program 81 times
[2021-06-01 18:46:15,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1201008003]
[2021-06-01 18:46:15,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,791 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,791 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1201008003]
[2021-06-01 18:46:15,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1201008003] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,791 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620548606]
[2021-06-01 18:46:15,791 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,792 INFO L87 Difference]: Start difference. First operand 198 states and 576 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:15,894 INFO L93 Difference]: Finished difference Result 429 states and 1163 transitions.
[2021-06-01 18:46:15,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:15,894 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:15,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:15,895 INFO L225 Difference]: With dead ends: 429
[2021-06-01 18:46:15,895 INFO L226 Difference]: Without dead ends: 414
[2021-06-01 18:46:15,895 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 63.9ms TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:15,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states.
[2021-06-01 18:46:15,898 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 196.
[2021-06-01 18:46:15,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.917948717948718) internal successors, (569), 195 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 569 transitions.
[2021-06-01 18:46:15,899 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 569 transitions. Word has length 17
[2021-06-01 18:46:15,899 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:15,899 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 569 transitions.
[2021-06-01 18:46:15,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:15,899 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 569 transitions.
[2021-06-01 18:46:15,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:15,900 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:15,900 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:15,900 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112
[2021-06-01 18:46:15,900 INFO L430 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:15,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:15,900 INFO L82 PathProgramCache]: Analyzing trace with hash -1608879492, now seen corresponding path program 82 times
[2021-06-01 18:46:15,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:15,901 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236722472]
[2021-06-01 18:46:15,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:15,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:15,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:15,949 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:15,949 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236722472]
[2021-06-01 18:46:15,949 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236722472] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:15,949 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:15,949 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:15,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378991992]
[2021-06-01 18:46:15,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:15,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:15,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:15,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:15,949 INFO L87 Difference]: Start difference. First operand 196 states and 569 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,034 INFO L93 Difference]: Finished difference Result 451 states and 1224 transitions.
[2021-06-01 18:46:16,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,034 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,035 INFO L225 Difference]: With dead ends: 451
[2021-06-01 18:46:16,035 INFO L226 Difference]: Without dead ends: 436
[2021-06-01 18:46:16,035 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 54.5ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 436 states.
[2021-06-01 18:46:16,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 436 to 199.
[2021-06-01 18:46:16,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9494949494949494) internal successors, (584), 198 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 584 transitions.
[2021-06-01 18:46:16,038 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 584 transitions. Word has length 17
[2021-06-01 18:46:16,038 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,038 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 584 transitions.
[2021-06-01 18:46:16,038 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,038 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 584 transitions.
[2021-06-01 18:46:16,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,039 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,039 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,039 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113
[2021-06-01 18:46:16,039 INFO L430 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1467452444, now seen corresponding path program 83 times
[2021-06-01 18:46:16,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,040 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160396404]
[2021-06-01 18:46:16,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,074 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,074 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160396404]
[2021-06-01 18:46:16,074 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160396404] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,074 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,074 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1563160261]
[2021-06-01 18:46:16,074 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,075 INFO L87 Difference]: Start difference. First operand 199 states and 584 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,187 INFO L93 Difference]: Finished difference Result 455 states and 1230 transitions.
[2021-06-01 18:46:16,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,187 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,188 INFO L225 Difference]: With dead ends: 455
[2021-06-01 18:46:16,188 INFO L226 Difference]: Without dead ends: 440
[2021-06-01 18:46:16,188 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 46.9ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states.
[2021-06-01 18:46:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 197.
[2021-06-01 18:46:16,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.933673469387755) internal successors, (575), 196 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 575 transitions.
[2021-06-01 18:46:16,193 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 575 transitions. Word has length 17
[2021-06-01 18:46:16,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,193 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 575 transitions.
[2021-06-01 18:46:16,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 575 transitions.
[2021-06-01 18:46:16,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,193 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,193 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,193 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114
[2021-06-01 18:46:16,194 INFO L430 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,204 INFO L82 PathProgramCache]: Analyzing trace with hash -619818944, now seen corresponding path program 84 times
[2021-06-01 18:46:16,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,204 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159289004]
[2021-06-01 18:46:16,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,242 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,243 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159289004]
[2021-06-01 18:46:16,243 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159289004] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,243 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,243 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500460941]
[2021-06-01 18:46:16,243 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,243 INFO L87 Difference]: Start difference. First operand 197 states and 575 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,337 INFO L93 Difference]: Finished difference Result 422 states and 1158 transitions.
[2021-06-01 18:46:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,338 INFO L225 Difference]: With dead ends: 422
[2021-06-01 18:46:16,339 INFO L226 Difference]: Without dead ends: 407
[2021-06-01 18:46:16,339 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 56.1ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states.
[2021-06-01 18:46:16,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 200.
[2021-06-01 18:46:16,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.959798994974874) internal successors, (589), 199 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 589 transitions.
[2021-06-01 18:46:16,343 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 589 transitions. Word has length 17
[2021-06-01 18:46:16,343 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,343 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 589 transitions.
[2021-06-01 18:46:16,343 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,343 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 589 transitions.
[2021-06-01 18:46:16,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,343 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,343 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115
[2021-06-01 18:46:16,344 INFO L430 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,344 INFO L82 PathProgramCache]: Analyzing trace with hash -1790007940, now seen corresponding path program 85 times
[2021-06-01 18:46:16,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,344 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [225171403]
[2021-06-01 18:46:16,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,381 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [225171403]
[2021-06-01 18:46:16,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [225171403] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433036443]
[2021-06-01 18:46:16,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,383 INFO L87 Difference]: Start difference. First operand 200 states and 589 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,474 INFO L93 Difference]: Finished difference Result 406 states and 1135 transitions.
[2021-06-01 18:46:16,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,474 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,475 INFO L225 Difference]: With dead ends: 406
[2021-06-01 18:46:16,475 INFO L226 Difference]: Without dead ends: 391
[2021-06-01 18:46:16,475 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 55.5ms TimeCoverageRelationStatistics Valid=43, Invalid=67, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391 states.
[2021-06-01 18:46:16,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391 to 197.
[2021-06-01 18:46:16,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 196 states have (on average 2.933673469387755) internal successors, (575), 196 states have internal predecessors, (575), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 575 transitions.
[2021-06-01 18:46:16,479 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 575 transitions. Word has length 17
[2021-06-01 18:46:16,479 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,479 INFO L482 AbstractCegarLoop]: Abstraction has 197 states and 575 transitions.
[2021-06-01 18:46:16,479 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,479 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 575 transitions.
[2021-06-01 18:46:16,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,480 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,480 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116
[2021-06-01 18:46:16,480 INFO L430 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,480 INFO L82 PathProgramCache]: Analyzing trace with hash -1806944992, now seen corresponding path program 86 times
[2021-06-01 18:46:16,480 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,480 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170884057]
[2021-06-01 18:46:16,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170884057]
[2021-06-01 18:46:16,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170884057] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,521 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,521 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058492515]
[2021-06-01 18:46:16,523 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,523 INFO L87 Difference]: Start difference. First operand 197 states and 575 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,624 INFO L93 Difference]: Finished difference Result 440 states and 1205 transitions.
[2021-06-01 18:46:16,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,625 INFO L225 Difference]: With dead ends: 440
[2021-06-01 18:46:16,625 INFO L226 Difference]: Without dead ends: 425
[2021-06-01 18:46:16,625 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 51.9ms TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states.
[2021-06-01 18:46:16,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 199.
[2021-06-01 18:46:16,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 199 states, 198 states have (on average 2.9494949494949494) internal successors, (584), 198 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 199 states to 199 states and 584 transitions.
[2021-06-01 18:46:16,629 INFO L78 Accepts]: Start accepts. Automaton has 199 states and 584 transitions. Word has length 17
[2021-06-01 18:46:16,629 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,629 INFO L482 AbstractCegarLoop]: Abstraction has 199 states and 584 transitions.
[2021-06-01 18:46:16,629 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,629 INFO L276 IsEmpty]: Start isEmpty. Operand 199 states and 584 transitions.
[2021-06-01 18:46:16,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,630 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,630 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,630 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117
[2021-06-01 18:46:16,630 INFO L430 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,630 INFO L82 PathProgramCache]: Analyzing trace with hash -666661156, now seen corresponding path program 87 times
[2021-06-01 18:46:16,630 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,630 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523830214]
[2021-06-01 18:46:16,630 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,665 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,665 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523830214]
[2021-06-01 18:46:16,665 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523830214] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,665 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,665 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,665 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382104100]
[2021-06-01 18:46:16,665 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,666 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,666 INFO L87 Difference]: Start difference. First operand 199 states and 584 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,751 INFO L93 Difference]: Finished difference Result 419 states and 1167 transitions.
[2021-06-01 18:46:16,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,751 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,752 INFO L225 Difference]: With dead ends: 419
[2021-06-01 18:46:16,752 INFO L226 Difference]: Without dead ends: 404
[2021-06-01 18:46:16,752 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 53.6ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:16,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states.
[2021-06-01 18:46:16,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 196.
[2021-06-01 18:46:16,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 195 states have (on average 2.917948717948718) internal successors, (569), 195 states have internal predecessors, (569), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 569 transitions.
[2021-06-01 18:46:16,755 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 569 transitions. Word has length 17
[2021-06-01 18:46:16,755 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,755 INFO L482 AbstractCegarLoop]: Abstraction has 196 states and 569 transitions.
[2021-06-01 18:46:16,755 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,755 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 569 transitions.
[2021-06-01 18:46:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,756 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,756 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118
[2021-06-01 18:46:16,756 INFO L430 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,756 INFO L82 PathProgramCache]: Analyzing trace with hash 201773648, now seen corresponding path program 88 times
[2021-06-01 18:46:16,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119546083]
[2021-06-01 18:46:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119546083]
[2021-06-01 18:46:16,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119546083] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155209251]
[2021-06-01 18:46:16,788 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,788 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,789 INFO L87 Difference]: Start difference. First operand 196 states and 569 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:16,873 INFO L93 Difference]: Finished difference Result 382 states and 1052 transitions.
[2021-06-01 18:46:16,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:16,874 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:16,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:16,874 INFO L225 Difference]: With dead ends: 382
[2021-06-01 18:46:16,874 INFO L226 Difference]: Without dead ends: 367
[2021-06-01 18:46:16,874 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 54.7ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:16,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367 states.
[2021-06-01 18:46:16,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367 to 198.
[2021-06-01 18:46:16,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 198 states, 197 states have (on average 2.9238578680203045) internal successors, (576), 197 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 576 transitions.
[2021-06-01 18:46:16,877 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 576 transitions. Word has length 17
[2021-06-01 18:46:16,877 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:16,877 INFO L482 AbstractCegarLoop]: Abstraction has 198 states and 576 transitions.
[2021-06-01 18:46:16,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:16,877 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 576 transitions.
[2021-06-01 18:46:16,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:16,878 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:16,878 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:16,878 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119
[2021-06-01 18:46:16,878 INFO L430 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:16,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:16,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1159324884, now seen corresponding path program 89 times
[2021-06-01 18:46:16,878 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:16,878 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55806606]
[2021-06-01 18:46:16,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:16,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:16,922 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:16,922 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55806606]
[2021-06-01 18:46:16,922 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55806606] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:16,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:16,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:16,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102815870]
[2021-06-01 18:46:16,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:16,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:16,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:16,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:16,923 INFO L87 Difference]: Start difference. First operand 198 states and 576 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:17,028 INFO L93 Difference]: Finished difference Result 383 states and 1063 transitions.
[2021-06-01 18:46:17,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:17,028 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:17,028 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:17,029 INFO L225 Difference]: With dead ends: 383
[2021-06-01 18:46:17,029 INFO L226 Difference]: Without dead ends: 368
[2021-06-01 18:46:17,029 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 60.1ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:17,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states.
[2021-06-01 18:46:17,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 200.
[2021-06-01 18:46:17,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 199 states have (on average 2.9396984924623117) internal successors, (585), 199 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 585 transitions.
[2021-06-01 18:46:17,032 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 585 transitions. Word has length 17
[2021-06-01 18:46:17,033 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:17,033 INFO L482 AbstractCegarLoop]: Abstraction has 200 states and 585 transitions.
[2021-06-01 18:46:17,033 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,033 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 585 transitions.
[2021-06-01 18:46:17,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18
[2021-06-01 18:46:17,033 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:17,033 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:17,033 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120
[2021-06-01 18:46:17,033 INFO L430 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:17,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:17,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1995358576, now seen corresponding path program 90 times
[2021-06-01 18:46:17,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:17,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808444659]
[2021-06-01 18:46:17,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:17,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:17,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:17,071 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:17,071 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808444659]
[2021-06-01 18:46:17,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808444659] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:46:17,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:46:17,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8
[2021-06-01 18:46:17,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907520682]
[2021-06-01 18:46:17,071 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:17,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:17,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:17,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:17,071 INFO L87 Difference]: Start difference. First operand 200 states and 585 transitions. Second operand has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:17,183 INFO L93 Difference]: Finished difference Result 362 states and 1025 transitions.
[2021-06-01 18:46:17,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:17,183 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17
[2021-06-01 18:46:17,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:17,184 INFO L225 Difference]: With dead ends: 362
[2021-06-01 18:46:17,184 INFO L226 Difference]: Without dead ends: 347
[2021-06-01 18:46:17,184 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 65.7ms TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:17,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states.
[2021-06-01 18:46:17,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 195.
[2021-06-01 18:46:17,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 194 states have (on average 2.9072164948453607) internal successors, (564), 194 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 564 transitions.
[2021-06-01 18:46:17,188 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 564 transitions. Word has length 17
[2021-06-01 18:46:17,188 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:17,188 INFO L482 AbstractCegarLoop]: Abstraction has 195 states and 564 transitions.
[2021-06-01 18:46:17,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.125) internal successors, (17), 8 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 564 transitions.
[2021-06-01 18:46:17,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:17,188 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:17,188 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:17,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121
[2021-06-01 18:46:17,188 INFO L430 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:17,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:17,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1106194689, now seen corresponding path program 1 times
[2021-06-01 18:46:17,189 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:17,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213105723]
[2021-06-01 18:46:17,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:17,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:17,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:17,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:17,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213105723]
[2021-06-01 18:46:17,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213105723] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:17,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [994312249]
[2021-06-01 18:46:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:17,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:17,355 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:17,360 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:17,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:17,561 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [994312249] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:17,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:17,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2021-06-01 18:46:17,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013492798]
[2021-06-01 18:46:17,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:17,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:17,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:17,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=121, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:17,563 INFO L87 Difference]: Start difference. First operand 195 states and 564 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:17,738 INFO L93 Difference]: Finished difference Result 363 states and 1031 transitions.
[2021-06-01 18:46:17,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:17,738 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:17,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:17,739 INFO L225 Difference]: With dead ends: 363
[2021-06-01 18:46:17,739 INFO L226 Difference]: Without dead ends: 344
[2021-06-01 18:46:17,740 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 162.5ms TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:46:17,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states.
[2021-06-01 18:46:17,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 208.
[2021-06-01 18:46:17,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.9613526570048307) internal successors, (613), 207 states have internal predecessors, (613), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 613 transitions.
[2021-06-01 18:46:17,746 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 613 transitions. Word has length 18
[2021-06-01 18:46:17,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:17,747 INFO L482 AbstractCegarLoop]: Abstraction has 208 states and 613 transitions.
[2021-06-01 18:46:17,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:17,747 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 613 transitions.
[2021-06-01 18:46:17,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:17,747 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:17,747 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:17,968 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable122
[2021-06-01 18:46:17,969 INFO L430 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:17,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:17,969 INFO L82 PathProgramCache]: Analyzing trace with hash -1981219535, now seen corresponding path program 2 times
[2021-06-01 18:46:17,969 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:17,969 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568712778]
[2021-06-01 18:46:17,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:17,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:18,000 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:18,000 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:18,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568712778]
[2021-06-01 18:46:18,000 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568712778] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:18,000 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [328344759]
[2021-06-01 18:46:18,000 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:18,046 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:18,046 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:18,047 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:18,047 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:18,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:18,106 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [328344759] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:18,106 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:18,106 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 7
[2021-06-01 18:46:18,107 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855573101]
[2021-06-01 18:46:18,107 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:46:18,107 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:18,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:46:18,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:46:18,107 INFO L87 Difference]: Start difference. First operand 208 states and 613 transitions. Second operand has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:18,157 INFO L93 Difference]: Finished difference Result 354 states and 1020 transitions.
[2021-06-01 18:46:18,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:18,157 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:18,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:18,160 INFO L225 Difference]: With dead ends: 354
[2021-06-01 18:46:18,161 INFO L226 Difference]: Without dead ends: 319
[2021-06-01 18:46:18,161 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 40.4ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90
[2021-06-01 18:46:18,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states.
[2021-06-01 18:46:18,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 216.
[2021-06-01 18:46:18,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 215 states have (on average 2.9813953488372094) internal successors, (641), 215 states have internal predecessors, (641), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 641 transitions.
[2021-06-01 18:46:18,165 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 641 transitions. Word has length 18
[2021-06-01 18:46:18,165 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:18,165 INFO L482 AbstractCegarLoop]: Abstraction has 216 states and 641 transitions.
[2021-06-01 18:46:18,165 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 2.857142857142857) internal successors, (20), 7 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,166 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 641 transitions.
[2021-06-01 18:46:18,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:18,166 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:18,166 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:18,388 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable125
[2021-06-01 18:46:18,389 INFO L430 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:18,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:18,389 INFO L82 PathProgramCache]: Analyzing trace with hash 948617417, now seen corresponding path program 1 times
[2021-06-01 18:46:18,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:18,389 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784956428]
[2021-06-01 18:46:18,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:18,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:18,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:18,445 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:18,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784956428]
[2021-06-01 18:46:18,445 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784956428] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:18,445 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2023436432]
[2021-06-01 18:46:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:18,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:18,481 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:18,483 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:18,573 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2023436432] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:18,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:18,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2021-06-01 18:46:18,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1441021907]
[2021-06-01 18:46:18,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:18,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:18,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:18,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:18,574 INFO L87 Difference]: Start difference. First operand 216 states and 641 transitions. Second operand has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:18,808 INFO L93 Difference]: Finished difference Result 382 states and 1057 transitions.
[2021-06-01 18:46:18,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:18,808 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:18,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:18,809 INFO L225 Difference]: With dead ends: 382
[2021-06-01 18:46:18,809 INFO L226 Difference]: Without dead ends: 342
[2021-06-01 18:46:18,810 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 223.6ms TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:46:18,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 342 states.
[2021-06-01 18:46:18,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 342 to 221.
[2021-06-01 18:46:18,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 220 states have (on average 2.9727272727272727) internal successors, (654), 220 states have internal predecessors, (654), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 654 transitions.
[2021-06-01 18:46:18,814 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 654 transitions. Word has length 18
[2021-06-01 18:46:18,814 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:18,814 INFO L482 AbstractCegarLoop]: Abstraction has 221 states and 654 transitions.
[2021-06-01 18:46:18,814 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:18,815 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 654 transitions.
[2021-06-01 18:46:18,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:18,815 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:18,815 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:19,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable129
[2021-06-01 18:46:19,016 INFO L430 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:19,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:19,016 INFO L82 PathProgramCache]: Analyzing trace with hash 864569794, now seen corresponding path program 1 times
[2021-06-01 18:46:19,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:19,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22829161]
[2021-06-01 18:46:19,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:19,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:19,060 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:19,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:19,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22829161]
[2021-06-01 18:46:19,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [22829161] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:19,061 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1647980037]
[2021-06-01 18:46:19,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:19,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:19,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:19,100 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:19,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:19,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1647980037] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:19,181 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:19,181 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:19,181 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604878892]
[2021-06-01 18:46:19,182 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:19,182 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:19,182 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:19,182 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:19,182 INFO L87 Difference]: Start difference. First operand 221 states and 654 transitions. Second operand has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:19,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:19,349 INFO L93 Difference]: Finished difference Result 389 states and 1088 transitions.
[2021-06-01 18:46:19,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:19,349 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:19,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:19,350 INFO L225 Difference]: With dead ends: 389
[2021-06-01 18:46:19,350 INFO L226 Difference]: Without dead ends: 330
[2021-06-01 18:46:19,350 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 152.0ms TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:19,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 330 states.
[2021-06-01 18:46:19,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 330 to 239.
[2021-06-01 18:46:19,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 238 states have (on average 2.936974789915966) internal successors, (699), 238 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:19,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 699 transitions.
[2021-06-01 18:46:19,355 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 699 transitions. Word has length 18
[2021-06-01 18:46:19,355 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:19,355 INFO L482 AbstractCegarLoop]: Abstraction has 239 states and 699 transitions.
[2021-06-01 18:46:19,355 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 9 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:19,355 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 699 transitions.
[2021-06-01 18:46:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:19,355 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:19,355 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:19,574 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:19,575 INFO L430 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:19,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:19,575 INFO L82 PathProgramCache]: Analyzing trace with hash 551699763, now seen corresponding path program 2 times
[2021-06-01 18:46:19,575 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:19,575 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149635003]
[2021-06-01 18:46:19,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:19,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:19,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:19,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149635003]
[2021-06-01 18:46:19,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149635003] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:19,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [584989782]
[2021-06-01 18:46:19,662 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:19,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:19,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:19,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:19,713 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:19,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:19,791 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [584989782] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:19,791 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:19,791 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 6] total 13
[2021-06-01 18:46:19,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166528085]
[2021-06-01 18:46:19,792 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:19,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:19,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:19,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:19,792 INFO L87 Difference]: Start difference. First operand 239 states and 699 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:20,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:20,238 INFO L93 Difference]: Finished difference Result 711 states and 1983 transitions.
[2021-06-01 18:46:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-06-01 18:46:20,238 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:20,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:20,239 INFO L225 Difference]: With dead ends: 711
[2021-06-01 18:46:20,239 INFO L226 Difference]: Without dead ends: 612
[2021-06-01 18:46:20,239 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 340.2ms TimeCoverageRelationStatistics Valid=139, Invalid=413, Unknown=0, NotChecked=0, Total=552
[2021-06-01 18:46:20,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states.
[2021-06-01 18:46:20,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 271.
[2021-06-01 18:46:20,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 270 states have (on average 3.0555555555555554) internal successors, (825), 270 states have internal predecessors, (825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:20,245 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 825 transitions.
[2021-06-01 18:46:20,246 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 825 transitions. Word has length 18
[2021-06-01 18:46:20,246 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:20,246 INFO L482 AbstractCegarLoop]: Abstraction has 271 states and 825 transitions.
[2021-06-01 18:46:20,246 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:20,246 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 825 transitions.
[2021-06-01 18:46:20,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:20,246 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:20,246 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:20,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable138
[2021-06-01 18:46:20,461 INFO L430 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:20,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:20,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1320268317, now seen corresponding path program 3 times
[2021-06-01 18:46:20,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:20,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550431526]
[2021-06-01 18:46:20,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:20,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:20,524 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:20,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:20,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550431526]
[2021-06-01 18:46:20,525 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550431526] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:20,525 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1143253789]
[2021-06-01 18:46:20,526 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:20,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:20,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:20,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:20,560 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:20,640 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:20,640 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1143253789] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:20,640 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:20,640 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12
[2021-06-01 18:46:20,641 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799528434]
[2021-06-01 18:46:20,642 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:20,642 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:20,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:20,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:20,644 INFO L87 Difference]: Start difference. First operand 271 states and 825 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:21,090 INFO L93 Difference]: Finished difference Result 703 states and 1933 transitions.
[2021-06-01 18:46:21,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:46:21,091 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:21,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:21,092 INFO L225 Difference]: With dead ends: 703
[2021-06-01 18:46:21,092 INFO L226 Difference]: Without dead ends: 610
[2021-06-01 18:46:21,093 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 26 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 354.0ms TimeCoverageRelationStatistics Valid=152, Invalid=400, Unknown=0, NotChecked=0, Total=552
[2021-06-01 18:46:21,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 610 states.
[2021-06-01 18:46:21,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 610 to 273.
[2021-06-01 18:46:21,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273 states, 272 states have (on average 3.0183823529411766) internal successors, (821), 272 states have internal predecessors, (821), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273 states to 273 states and 821 transitions.
[2021-06-01 18:46:21,100 INFO L78 Accepts]: Start accepts. Automaton has 273 states and 821 transitions. Word has length 18
[2021-06-01 18:46:21,100 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:21,100 INFO L482 AbstractCegarLoop]: Abstraction has 273 states and 821 transitions.
[2021-06-01 18:46:21,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,100 INFO L276 IsEmpty]: Start isEmpty. Operand 273 states and 821 transitions.
[2021-06-01 18:46:21,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:21,100 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:21,101 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:21,316 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:21,317 INFO L430 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:21,317 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:21,317 INFO L82 PathProgramCache]: Analyzing trace with hash 1167846345, now seen corresponding path program 4 times
[2021-06-01 18:46:21,317 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:21,317 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164425619]
[2021-06-01 18:46:21,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:21,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:21,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:21,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:21,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164425619]
[2021-06-01 18:46:21,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164425619] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:21,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1001695117]
[2021-06-01 18:46:21,395 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:21,426 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:46:21,427 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:21,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:21,428 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:21,508 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1001695117] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:21,508 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:21,508 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14
[2021-06-01 18:46:21,508 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218916339]
[2021-06-01 18:46:21,508 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-06-01 18:46:21,508 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:21,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-06-01 18:46:21,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182
[2021-06-01 18:46:21,509 INFO L87 Difference]: Start difference. First operand 273 states and 821 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:21,695 INFO L93 Difference]: Finished difference Result 491 states and 1371 transitions.
[2021-06-01 18:46:21,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:21,695 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:21,695 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:21,696 INFO L225 Difference]: With dead ends: 491
[2021-06-01 18:46:21,696 INFO L226 Difference]: Without dead ends: 451
[2021-06-01 18:46:21,696 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 187.1ms TimeCoverageRelationStatistics Valid=98, Invalid=244, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:46:21,696 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states.
[2021-06-01 18:46:21,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 276.
[2021-06-01 18:46:21,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 275 states have (on average 3.0036363636363634) internal successors, (826), 275 states have internal predecessors, (826), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 826 transitions.
[2021-06-01 18:46:21,701 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 826 transitions. Word has length 18
[2021-06-01 18:46:21,701 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:21,701 INFO L482 AbstractCegarLoop]: Abstraction has 276 states and 826 transitions.
[2021-06-01 18:46:21,701 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:21,701 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 826 transitions.
[2021-06-01 18:46:21,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:21,702 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:21,702 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:21,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable146
[2021-06-01 18:46:21,913 INFO L430 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:21,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:21,913 INFO L82 PathProgramCache]: Analyzing trace with hash 1139445085, now seen corresponding path program 5 times
[2021-06-01 18:46:21,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:21,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119398361]
[2021-06-01 18:46:21,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:21,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:21,982 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:21,982 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:21,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119398361]
[2021-06-01 18:46:21,983 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119398361] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:21,983 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1556492977]
[2021-06-01 18:46:21,983 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:22,020 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:22,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:22,021 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:22,022 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:22,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:22,105 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1556492977] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:22,105 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:22,105 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14
[2021-06-01 18:46:22,105 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932433765]
[2021-06-01 18:46:22,105 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-06-01 18:46:22,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:22,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-06-01 18:46:22,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182
[2021-06-01 18:46:22,106 INFO L87 Difference]: Start difference. First operand 276 states and 826 transitions. Second operand has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:22,310 INFO L93 Difference]: Finished difference Result 462 states and 1278 transitions.
[2021-06-01 18:46:22,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:22,311 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:22,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:22,311 INFO L225 Difference]: With dead ends: 462
[2021-06-01 18:46:22,311 INFO L226 Difference]: Without dead ends: 431
[2021-06-01 18:46:22,312 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 208.6ms TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:46:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2021-06-01 18:46:22,316 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 279.
[2021-06-01 18:46:22,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 2.9892086330935252) internal successors, (831), 278 states have internal predecessors, (831), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:22,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 831 transitions.
[2021-06-01 18:46:22,317 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 831 transitions. Word has length 18
[2021-06-01 18:46:22,317 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:22,317 INFO L482 AbstractCegarLoop]: Abstraction has 279 states and 831 transitions.
[2021-06-01 18:46:22,317 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 14 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:22,317 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 831 transitions.
[2021-06-01 18:46:22,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:22,318 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:22,318 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:22,532 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable149
[2021-06-01 18:46:22,533 INFO L430 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash -732522995, now seen corresponding path program 6 times
[2021-06-01 18:46:22,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:22,533 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439941774]
[2021-06-01 18:46:22,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:22,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:22,588 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:22,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439941774]
[2021-06-01 18:46:22,588 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439941774] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:22,588 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1651703897]
[2021-06-01 18:46:22,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:22,619 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:46:22,619 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:22,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:22,622 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:22,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:22,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1651703897] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:22,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:22,695 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12
[2021-06-01 18:46:22,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021137011]
[2021-06-01 18:46:22,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:22,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:22,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:22,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:22,696 INFO L87 Difference]: Start difference. First operand 279 states and 831 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:23,134 INFO L93 Difference]: Finished difference Result 579 states and 1609 transitions.
[2021-06-01 18:46:23,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:46:23,134 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:23,135 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:23,135 INFO L225 Difference]: With dead ends: 579
[2021-06-01 18:46:23,135 INFO L226 Difference]: Without dead ends: 481
[2021-06-01 18:46:23,135 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 327.5ms TimeCoverageRelationStatistics Valid=153, Invalid=399, Unknown=0, NotChecked=0, Total=552
[2021-06-01 18:46:23,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 481 states.
[2021-06-01 18:46:23,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 481 to 277.
[2021-06-01 18:46:23,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 277 states, 276 states have (on average 3.0543478260869565) internal successors, (843), 276 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 843 transitions.
[2021-06-01 18:46:23,141 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 843 transitions. Word has length 18
[2021-06-01 18:46:23,141 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:23,141 INFO L482 AbstractCegarLoop]: Abstraction has 277 states and 843 transitions.
[2021-06-01 18:46:23,141 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,141 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 843 transitions.
[2021-06-01 18:46:23,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:23,142 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:23,142 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:23,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:23,364 INFO L430 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:23,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:23,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1338392489, now seen corresponding path program 7 times
[2021-06-01 18:46:23,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:23,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048282735]
[2021-06-01 18:46:23,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:23,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:23,418 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:23,418 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:23,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048282735]
[2021-06-01 18:46:23,418 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048282735] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:23,418 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721411221]
[2021-06-01 18:46:23,418 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:23,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:23,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:23,451 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:23,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:23,534 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721411221] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:23,534 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:23,534 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 12
[2021-06-01 18:46:23,534 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25145249]
[2021-06-01 18:46:23,534 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:23,535 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:23,535 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:23,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:23,535 INFO L87 Difference]: Start difference. First operand 277 states and 843 transitions. Second operand has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:23,741 INFO L93 Difference]: Finished difference Result 557 states and 1551 transitions.
[2021-06-01 18:46:23,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:23,741 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:23,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:23,742 INFO L225 Difference]: With dead ends: 557
[2021-06-01 18:46:23,742 INFO L226 Difference]: Without dead ends: 517
[2021-06-01 18:46:23,742 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 186.1ms TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240
[2021-06-01 18:46:23,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 517 states.
[2021-06-01 18:46:23,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 517 to 284.
[2021-06-01 18:46:23,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 284 states, 283 states have (on average 3.060070671378092) internal successors, (866), 283 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 284 states to 284 states and 866 transitions.
[2021-06-01 18:46:23,747 INFO L78 Accepts]: Start accepts. Automaton has 284 states and 866 transitions. Word has length 18
[2021-06-01 18:46:23,747 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:23,747 INFO L482 AbstractCegarLoop]: Abstraction has 284 states and 866 transitions.
[2021-06-01 18:46:23,747 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5) internal successors, (30), 12 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:23,747 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states and 866 transitions.
[2021-06-01 18:46:23,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:23,747 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:23,747 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:23,948 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable156
[2021-06-01 18:46:23,948 INFO L430 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:23,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:23,948 INFO L82 PathProgramCache]: Analyzing trace with hash 1254344866, now seen corresponding path program 2 times
[2021-06-01 18:46:23,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:23,949 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991969650]
[2021-06-01 18:46:23,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:23,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:23,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:23,991 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:23,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991969650]
[2021-06-01 18:46:23,991 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1991969650] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:23,991 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2073710403]
[2021-06-01 18:46:23,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:24,024 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:24,025 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:24,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:24,026 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:24,087 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:24,087 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2073710403] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:24,087 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:24,087 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:24,087 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [582561621]
[2021-06-01 18:46:24,087 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:24,087 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:24,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:24,088 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:24,088 INFO L87 Difference]: Start difference. First operand 284 states and 866 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:24,186 INFO L93 Difference]: Finished difference Result 566 states and 1626 transitions.
[2021-06-01 18:46:24,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:24,186 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:24,187 INFO L225 Difference]: With dead ends: 566
[2021-06-01 18:46:24,187 INFO L226 Difference]: Without dead ends: 505
[2021-06-01 18:46:24,187 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 101.6ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:24,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505 states.
[2021-06-01 18:46:24,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505 to 300.
[2021-06-01 18:46:24,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 299 states have (on average 3.120401337792642) internal successors, (933), 299 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 933 transitions.
[2021-06-01 18:46:24,193 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 933 transitions. Word has length 18
[2021-06-01 18:46:24,193 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:24,193 INFO L482 AbstractCegarLoop]: Abstraction has 300 states and 933 transitions.
[2021-06-01 18:46:24,193 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,193 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 933 transitions.
[2021-06-01 18:46:24,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:24,194 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:24,194 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:24,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable161
[2021-06-01 18:46:24,405 INFO L430 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:24,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:24,405 INFO L82 PathProgramCache]: Analyzing trace with hash 2042464585, now seen corresponding path program 8 times
[2021-06-01 18:46:24,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:24,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058139913]
[2021-06-01 18:46:24,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:24,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:24,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:24,442 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:24,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058139913]
[2021-06-01 18:46:24,442 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1058139913] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:24,442 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2101698926]
[2021-06-01 18:46:24,442 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:24,475 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:24,475 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:24,476 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:24,477 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:24,526 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2101698926] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:24,526 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:24,526 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8
[2021-06-01 18:46:24,526 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421507236]
[2021-06-01 18:46:24,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:24,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:24,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:24,534 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:24,534 INFO L87 Difference]: Start difference. First operand 300 states and 933 transitions. Second operand has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:24,625 INFO L93 Difference]: Finished difference Result 439 states and 1262 transitions.
[2021-06-01 18:46:24,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:24,625 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:24,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:24,626 INFO L225 Difference]: With dead ends: 439
[2021-06-01 18:46:24,626 INFO L226 Difference]: Without dead ends: 381
[2021-06-01 18:46:24,626 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 94.4ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:24,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states.
[2021-06-01 18:46:24,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 296.
[2021-06-01 18:46:24,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 3.0406779661016947) internal successors, (897), 295 states have internal predecessors, (897), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 897 transitions.
[2021-06-01 18:46:24,630 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 897 transitions. Word has length 18
[2021-06-01 18:46:24,630 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:24,630 INFO L482 AbstractCegarLoop]: Abstraction has 296 states and 897 transitions.
[2021-06-01 18:46:24,630 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.75) internal successors, (22), 8 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:24,630 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 897 transitions.
[2021-06-01 18:46:24,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:24,631 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:24,631 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:24,836 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable165,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:24,837 INFO L430 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:24,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:24,837 INFO L82 PathProgramCache]: Analyzing trace with hash -1866597709, now seen corresponding path program 3 times
[2021-06-01 18:46:24,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:24,837 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452565215]
[2021-06-01 18:46:24,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:24,891 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:24,892 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:24,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452565215]
[2021-06-01 18:46:24,892 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452565215] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:24,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227822953]
[2021-06-01 18:46:24,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:24,947 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:24,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:24,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:24,949 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:25,011 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:25,011 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227822953] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:25,011 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:25,011 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 11
[2021-06-01 18:46:25,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322503845]
[2021-06-01 18:46:25,012 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states
[2021-06-01 18:46:25,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:25,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-06-01 18:46:25,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:25,012 INFO L87 Difference]: Start difference. First operand 296 states and 897 transitions. Second operand has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:25,299 INFO L93 Difference]: Finished difference Result 627 states and 1772 transitions.
[2021-06-01 18:46:25,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:46:25,299 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:25,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:25,300 INFO L225 Difference]: With dead ends: 627
[2021-06-01 18:46:25,300 INFO L226 Difference]: Without dead ends: 553
[2021-06-01 18:46:25,300 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 231.4ms TimeCoverageRelationStatistics Valid=137, Invalid=325, Unknown=0, NotChecked=0, Total=462
[2021-06-01 18:46:25,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states.
[2021-06-01 18:46:25,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 326.
[2021-06-01 18:46:25,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 3.076923076923077) internal successors, (1000), 325 states have internal predecessors, (1000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,307 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 1000 transitions.
[2021-06-01 18:46:25,307 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 1000 transitions. Word has length 18
[2021-06-01 18:46:25,307 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:25,307 INFO L482 AbstractCegarLoop]: Abstraction has 326 states and 1000 transitions.
[2021-06-01 18:46:25,307 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.8181818181818183) internal successors, (31), 11 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,307 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 1000 transitions.
[2021-06-01 18:46:25,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:25,308 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:25,308 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:25,520 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable169
[2021-06-01 18:46:25,521 INFO L430 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:25,521 INFO L82 PathProgramCache]: Analyzing trace with hash 1213009967, now seen corresponding path program 4 times
[2021-06-01 18:46:25,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:25,521 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509655372]
[2021-06-01 18:46:25,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:25,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:25,572 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:25,572 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:25,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509655372]
[2021-06-01 18:46:25,572 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509655372] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:25,572 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47958098]
[2021-06-01 18:46:25,572 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:25,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:46:25,624 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:25,625 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:25,625 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:25,715 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:25,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47958098] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:25,715 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:25,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2021-06-01 18:46:25,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147086685]
[2021-06-01 18:46:25,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:25,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:25,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:25,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:25,716 INFO L87 Difference]: Start difference. First operand 326 states and 1000 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:25,873 INFO L93 Difference]: Finished difference Result 453 states and 1320 transitions.
[2021-06-01 18:46:25,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:25,874 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:25,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:25,874 INFO L225 Difference]: With dead ends: 453
[2021-06-01 18:46:25,874 INFO L226 Difference]: Without dead ends: 419
[2021-06-01 18:46:25,874 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 172.0ms TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272
[2021-06-01 18:46:25,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states.
[2021-06-01 18:46:25,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 326.
[2021-06-01 18:46:25,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 326 states, 325 states have (on average 3.0707692307692307) internal successors, (998), 325 states have internal predecessors, (998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 326 states to 326 states and 998 transitions.
[2021-06-01 18:46:25,879 INFO L78 Accepts]: Start accepts. Automaton has 326 states and 998 transitions. Word has length 18
[2021-06-01 18:46:25,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:25,879 INFO L482 AbstractCegarLoop]: Abstraction has 326 states and 998 transitions.
[2021-06-01 18:46:25,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:25,879 INFO L276 IsEmpty]: Start isEmpty. Operand 326 states and 998 transitions.
[2021-06-01 18:46:25,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:25,879 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:25,879 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:26,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable173,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:26,080 INFO L430 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:26,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:26,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1861527460, now seen corresponding path program 3 times
[2021-06-01 18:46:26,080 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:26,080 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868068264]
[2021-06-01 18:46:26,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:26,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:26,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:26,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:26,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868068264]
[2021-06-01 18:46:26,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868068264] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:26,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [407197876]
[2021-06-01 18:46:26,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:26,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:26,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:26,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:26,161 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:26,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:26,253 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [407197876] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:26,253 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:26,253 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12
[2021-06-01 18:46:26,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [26506332]
[2021-06-01 18:46:26,253 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:26,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:26,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:26,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:26,254 INFO L87 Difference]: Start difference. First operand 326 states and 998 transitions. Second operand has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:26,380 INFO L93 Difference]: Finished difference Result 528 states and 1512 transitions.
[2021-06-01 18:46:26,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-06-01 18:46:26,381 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:26,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:26,381 INFO L225 Difference]: With dead ends: 528
[2021-06-01 18:46:26,381 INFO L226 Difference]: Without dead ends: 440
[2021-06-01 18:46:26,381 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 133.2ms TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240
[2021-06-01 18:46:26,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states.
[2021-06-01 18:46:26,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 320.
[2021-06-01 18:46:26,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 319 states have (on average 3.0564263322884013) internal successors, (975), 319 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 975 transitions.
[2021-06-01 18:46:26,385 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 975 transitions. Word has length 18
[2021-06-01 18:46:26,385 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:26,385 INFO L482 AbstractCegarLoop]: Abstraction has 320 states and 975 transitions.
[2021-06-01 18:46:26,386 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.5833333333333335) internal successors, (31), 12 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,386 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 975 transitions.
[2021-06-01 18:46:26,386 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:26,386 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:26,386 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:26,586 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable176,16 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:26,587 INFO L430 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:26,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:26,587 INFO L82 PathProgramCache]: Analyzing trace with hash -1726676173, now seen corresponding path program 5 times
[2021-06-01 18:46:26,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:26,587 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [674848128]
[2021-06-01 18:46:26,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:26,618 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:26,618 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:26,618 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [674848128]
[2021-06-01 18:46:26,619 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [674848128] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:26,619 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1292643796]
[2021-06-01 18:46:26,619 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:26,650 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:26,650 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:26,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:26,652 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:26,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:26,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1292643796] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:26,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:26,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:26,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1423458055]
[2021-06-01 18:46:26,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:26,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:26,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:26,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:26,703 INFO L87 Difference]: Start difference. First operand 320 states and 975 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:26,750 INFO L93 Difference]: Finished difference Result 455 states and 1343 transitions.
[2021-06-01 18:46:26,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:26,751 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:26,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:26,752 INFO L225 Difference]: With dead ends: 455
[2021-06-01 18:46:26,752 INFO L226 Difference]: Without dead ends: 405
[2021-06-01 18:46:26,752 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 56.7ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:26,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states.
[2021-06-01 18:46:26,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 307.
[2021-06-01 18:46:26,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 307 states, 306 states have (on average 3.0326797385620914) internal successors, (928), 306 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 307 states to 307 states and 928 transitions.
[2021-06-01 18:46:26,757 INFO L78 Accepts]: Start accepts. Automaton has 307 states and 928 transitions. Word has length 18
[2021-06-01 18:46:26,757 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:26,757 INFO L482 AbstractCegarLoop]: Abstraction has 307 states and 928 transitions.
[2021-06-01 18:46:26,757 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:26,757 INFO L276 IsEmpty]: Start isEmpty. Operand 307 states and 928 transitions.
[2021-06-01 18:46:26,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:26,758 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:26,758 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:26,980 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable180,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:26,981 INFO L430 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:26,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:26,981 INFO L82 PathProgramCache]: Analyzing trace with hash -253324305, now seen corresponding path program 9 times
[2021-06-01 18:46:26,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:26,981 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24240308]
[2021-06-01 18:46:26,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:26,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:27,043 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:27,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24240308]
[2021-06-01 18:46:27,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24240308] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:27,043 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453645526]
[2021-06-01 18:46:27,043 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:27,073 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:27,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:27,074 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:27,074 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:27,137 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:27,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453645526] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:27,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:27,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12
[2021-06-01 18:46:27,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155478094]
[2021-06-01 18:46:27,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:27,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:27,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:27,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:27,138 INFO L87 Difference]: Start difference. First operand 307 states and 928 transitions. Second operand has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:27,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:27,454 INFO L93 Difference]: Finished difference Result 718 states and 2053 transitions.
[2021-06-01 18:46:27,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:46:27,454 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:27,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:27,456 INFO L225 Difference]: With dead ends: 718
[2021-06-01 18:46:27,456 INFO L226 Difference]: Without dead ends: 592
[2021-06-01 18:46:27,456 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 234.0ms TimeCoverageRelationStatistics Valid=129, Invalid=333, Unknown=0, NotChecked=0, Total=462
[2021-06-01 18:46:27,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states.
[2021-06-01 18:46:27,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 310.
[2021-06-01 18:46:27,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 3.0226537216828477) internal successors, (934), 309 states have internal predecessors, (934), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:27,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 934 transitions.
[2021-06-01 18:46:27,462 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 934 transitions. Word has length 18
[2021-06-01 18:46:27,462 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:27,462 INFO L482 AbstractCegarLoop]: Abstraction has 310 states and 934 transitions.
[2021-06-01 18:46:27,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.8333333333333335) internal successors, (34), 12 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:27,462 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 934 transitions.
[2021-06-01 18:46:27,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:27,462 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:27,462 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:27,683 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable184,18 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:27,683 INFO L430 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:27,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:27,683 INFO L82 PathProgramCache]: Analyzing trace with hash -603750765, now seen corresponding path program 10 times
[2021-06-01 18:46:27,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:27,684 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922907665]
[2021-06-01 18:46:27,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:27,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:27,759 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:27,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:27,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922907665]
[2021-06-01 18:46:27,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922907665] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:27,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180945307]
[2021-06-01 18:46:27,759 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:27,792 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:46:27,793 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:27,793 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:27,795 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:27,888 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:27,888 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180945307] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:27,888 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:27,888 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 14
[2021-06-01 18:46:27,889 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957472462]
[2021-06-01 18:46:27,889 INFO L462 AbstractCegarLoop]: Interpolant automaton has 14 states
[2021-06-01 18:46:27,889 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:27,889 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants.
[2021-06-01 18:46:27,889 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182
[2021-06-01 18:46:27,889 INFO L87 Difference]: Start difference. First operand 310 states and 934 transitions. Second operand has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:28,090 INFO L93 Difference]: Finished difference Result 549 states and 1571 transitions.
[2021-06-01 18:46:28,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:28,090 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:28,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:28,091 INFO L225 Difference]: With dead ends: 549
[2021-06-01 18:46:28,091 INFO L226 Difference]: Without dead ends: 512
[2021-06-01 18:46:28,091 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 212.0ms TimeCoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:46:28,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 512 states.
[2021-06-01 18:46:28,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 512 to 310.
[2021-06-01 18:46:28,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 3.0194174757281553) internal successors, (933), 309 states have internal predecessors, (933), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 933 transitions.
[2021-06-01 18:46:28,096 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 933 transitions. Word has length 18
[2021-06-01 18:46:28,096 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:28,096 INFO L482 AbstractCegarLoop]: Abstraction has 310 states and 933 transitions.
[2021-06-01 18:46:28,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 2.2142857142857144) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,096 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 933 transitions.
[2021-06-01 18:46:28,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:28,096 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:28,096 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:28,319 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable188
[2021-06-01 18:46:28,319 INFO L430 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:28,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:28,319 INFO L82 PathProgramCache]: Analyzing trace with hash -1496627073, now seen corresponding path program 11 times
[2021-06-01 18:46:28,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:28,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [18964644]
[2021-06-01 18:46:28,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:28,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:28,366 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:28,366 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [18964644]
[2021-06-01 18:46:28,367 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [18964644] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:28,367 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [747803734]
[2021-06-01 18:46:28,367 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:28,404 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:28,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:28,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:28,408 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:28,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:28,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [747803734] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:28,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:28,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2021-06-01 18:46:28,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822417009]
[2021-06-01 18:46:28,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:28,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:28,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:28,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:28,493 INFO L87 Difference]: Start difference. First operand 310 states and 933 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:28,653 INFO L93 Difference]: Finished difference Result 552 states and 1552 transitions.
[2021-06-01 18:46:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:28,654 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:28,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:28,655 INFO L225 Difference]: With dead ends: 552
[2021-06-01 18:46:28,655 INFO L226 Difference]: Without dead ends: 521
[2021-06-01 18:46:28,655 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 119.1ms TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240
[2021-06-01 18:46:28,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 521 states.
[2021-06-01 18:46:28,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 521 to 313.
[2021-06-01 18:46:28,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 313 states, 312 states have (on average 3.0288461538461537) internal successors, (945), 312 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 945 transitions.
[2021-06-01 18:46:28,660 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 945 transitions. Word has length 18
[2021-06-01 18:46:28,660 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:28,660 INFO L482 AbstractCegarLoop]: Abstraction has 313 states and 945 transitions.
[2021-06-01 18:46:28,661 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:28,661 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 945 transitions.
[2021-06-01 18:46:28,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:28,661 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:28,661 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:28,868 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable191,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:28,869 INFO L430 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:28,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:28,869 INFO L82 PathProgramCache]: Analyzing trace with hash 1579704863, now seen corresponding path program 12 times
[2021-06-01 18:46:28,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:28,869 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747542137]
[2021-06-01 18:46:28,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:28,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:28,898 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:28,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747542137]
[2021-06-01 18:46:28,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747542137] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:28,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303914649]
[2021-06-01 18:46:28,898 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:28,935 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:46:28,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:28,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:28,937 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:28,986 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:28,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1303914649] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:28,987 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:28,987 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8
[2021-06-01 18:46:28,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762096966]
[2021-06-01 18:46:28,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:46:28,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:28,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:46:28,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:46:28,987 INFO L87 Difference]: Start difference. First operand 313 states and 945 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:29,039 INFO L93 Difference]: Finished difference Result 451 states and 1311 transitions.
[2021-06-01 18:46:29,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:29,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:29,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:29,040 INFO L225 Difference]: With dead ends: 451
[2021-06-01 18:46:29,040 INFO L226 Difference]: Without dead ends: 402
[2021-06-01 18:46:29,040 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 49.5ms TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90
[2021-06-01 18:46:29,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 402 states.
[2021-06-01 18:46:29,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 402 to 275.
[2021-06-01 18:46:29,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 275 states, 274 states have (on average 2.9708029197080292) internal successors, (814), 274 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275 states to 275 states and 814 transitions.
[2021-06-01 18:46:29,045 INFO L78 Accepts]: Start accepts. Automaton has 275 states and 814 transitions. Word has length 18
[2021-06-01 18:46:29,045 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:29,045 INFO L482 AbstractCegarLoop]: Abstraction has 275 states and 814 transitions.
[2021-06-01 18:46:29,045 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,045 INFO L276 IsEmpty]: Start isEmpty. Operand 275 states and 814 transitions.
[2021-06-01 18:46:29,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:29,045 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:29,046 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:29,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable194
[2021-06-01 18:46:29,257 INFO L430 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:29,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:29,257 INFO L82 PathProgramCache]: Analyzing trace with hash -1646468570, now seen corresponding path program 4 times
[2021-06-01 18:46:29,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:29,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510565189]
[2021-06-01 18:46:29,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:29,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:29,298 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:29,298 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510565189]
[2021-06-01 18:46:29,299 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510565189] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:29,299 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [359786591]
[2021-06-01 18:46:29,299 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:29,332 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:46:29,332 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:29,333 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:29,333 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:29,387 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:29,387 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [359786591] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:29,387 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:29,387 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:29,387 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [426604562]
[2021-06-01 18:46:29,388 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:29,388 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:29,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:29,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:29,388 INFO L87 Difference]: Start difference. First operand 275 states and 814 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:29,466 INFO L93 Difference]: Finished difference Result 382 states and 1100 transitions.
[2021-06-01 18:46:29,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:29,466 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:29,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:29,466 INFO L225 Difference]: With dead ends: 382
[2021-06-01 18:46:29,466 INFO L226 Difference]: Without dead ends: 321
[2021-06-01 18:46:29,467 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 86.2ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states.
[2021-06-01 18:46:29,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 285.
[2021-06-01 18:46:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 2.943661971830986) internal successors, (836), 284 states have internal predecessors, (836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 836 transitions.
[2021-06-01 18:46:29,470 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 836 transitions. Word has length 18
[2021-06-01 18:46:29,470 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:29,470 INFO L482 AbstractCegarLoop]: Abstraction has 285 states and 836 transitions.
[2021-06-01 18:46:29,470 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,470 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 836 transitions.
[2021-06-01 18:46:29,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:29,470 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:29,470 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:29,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable198,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:29,671 INFO L430 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:29,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1039285976, now seen corresponding path program 5 times
[2021-06-01 18:46:29,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:29,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446788163]
[2021-06-01 18:46:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:29,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:29,702 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:29,702 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:29,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446788163]
[2021-06-01 18:46:29,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446788163] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:29,702 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1682569552]
[2021-06-01 18:46:29,702 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:29,735 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:29,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:29,736 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:29,742 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:29,800 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:29,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1682569552] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:29,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:29,801 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:29,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088037938]
[2021-06-01 18:46:29,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:29,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:29,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:29,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:29,801 INFO L87 Difference]: Start difference. First operand 285 states and 836 transitions. Second operand has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:29,860 INFO L93 Difference]: Finished difference Result 392 states and 1114 transitions.
[2021-06-01 18:46:29,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:29,860 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:29,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:29,861 INFO L225 Difference]: With dead ends: 392
[2021-06-01 18:46:29,861 INFO L226 Difference]: Without dead ends: 337
[2021-06-01 18:46:29,861 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 60.9ms TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:29,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states.
[2021-06-01 18:46:29,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 274.
[2021-06-01 18:46:29,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 274 states, 273 states have (on average 2.93040293040293) internal successors, (800), 273 states have internal predecessors, (800), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 800 transitions.
[2021-06-01 18:46:29,865 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 800 transitions. Word has length 18
[2021-06-01 18:46:29,865 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:29,865 INFO L482 AbstractCegarLoop]: Abstraction has 274 states and 800 transitions.
[2021-06-01 18:46:29,865 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.6666666666666665) internal successors, (24), 9 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:29,865 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 800 transitions.
[2021-06-01 18:46:29,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:29,866 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:29,866 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:30,088 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable202,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:30,089 INFO L430 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:30,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:30,089 INFO L82 PathProgramCache]: Analyzing trace with hash -1633409787, now seen corresponding path program 6 times
[2021-06-01 18:46:30,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:30,089 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2016546588]
[2021-06-01 18:46:30,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:30,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:30,155 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:30,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:30,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2016546588]
[2021-06-01 18:46:30,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2016546588] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:30,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233457479]
[2021-06-01 18:46:30,156 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:30,191 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:46:30,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:30,192 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:30,196 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:30,278 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:30,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233457479] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:30,279 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:30,279 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12
[2021-06-01 18:46:30,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645242711]
[2021-06-01 18:46:30,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:30,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:30,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:30,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:30,279 INFO L87 Difference]: Start difference. First operand 274 states and 800 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:30,709 INFO L93 Difference]: Finished difference Result 519 states and 1396 transitions.
[2021-06-01 18:46:30,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:46:30,710 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:30,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:30,711 INFO L225 Difference]: With dead ends: 519
[2021-06-01 18:46:30,711 INFO L226 Difference]: Without dead ends: 431
[2021-06-01 18:46:30,711 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 360.2ms TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:46:30,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 431 states.
[2021-06-01 18:46:30,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 431 to 279.
[2021-06-01 18:46:30,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 278 states have (on average 2.91726618705036) internal successors, (811), 278 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 811 transitions.
[2021-06-01 18:46:30,715 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 811 transitions. Word has length 18
[2021-06-01 18:46:30,715 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:30,715 INFO L482 AbstractCegarLoop]: Abstraction has 279 states and 811 transitions.
[2021-06-01 18:46:30,715 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:30,715 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 811 transitions.
[2021-06-01 18:46:30,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:30,715 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:30,715 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:30,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable206
[2021-06-01 18:46:30,916 INFO L430 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:30,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:30,916 INFO L82 PathProgramCache]: Analyzing trace with hash -675858551, now seen corresponding path program 7 times
[2021-06-01 18:46:30,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:30,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578855630]
[2021-06-01 18:46:30,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:30,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:30,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:30,980 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:30,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578855630]
[2021-06-01 18:46:30,980 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578855630] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:30,980 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1232135292]
[2021-06-01 18:46:30,980 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 25 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:31,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:31,012 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:31,013 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:31,100 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:31,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1232135292] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:31,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:31,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13
[2021-06-01 18:46:31,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592058738]
[2021-06-01 18:46:31,100 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states
[2021-06-01 18:46:31,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:31,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants.
[2021-06-01 18:46:31,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=125, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:46:31,101 INFO L87 Difference]: Start difference. First operand 279 states and 811 transitions. Second operand has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:31,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:31,327 INFO L93 Difference]: Finished difference Result 371 states and 1004 transitions.
[2021-06-01 18:46:31,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states.
[2021-06-01 18:46:31,328 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:31,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:31,328 INFO L225 Difference]: With dead ends: 371
[2021-06-01 18:46:31,328 INFO L226 Difference]: Without dead ends: 348
[2021-06-01 18:46:31,329 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 244.3ms TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:46:31,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states.
[2021-06-01 18:46:31,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 285.
[2021-06-01 18:46:31,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 284 states have (on average 2.9014084507042255) internal successors, (824), 284 states have internal predecessors, (824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:31,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 824 transitions.
[2021-06-01 18:46:31,333 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 824 transitions. Word has length 18
[2021-06-01 18:46:31,333 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:31,333 INFO L482 AbstractCegarLoop]: Abstraction has 285 states and 824 transitions.
[2021-06-01 18:46:31,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 13 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:31,333 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 824 transitions.
[2021-06-01 18:46:31,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:31,333 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:31,333 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:31,534 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable210,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:31,534 INFO L430 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:31,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:31,534 INFO L82 PathProgramCache]: Analyzing trace with hash -1891218171, now seen corresponding path program 8 times
[2021-06-01 18:46:31,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:31,535 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1164790171]
[2021-06-01 18:46:31,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:31,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:31,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:31,602 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:31,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1164790171]
[2021-06-01 18:46:31,602 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1164790171] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:31,602 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [38560094]
[2021-06-01 18:46:31,602 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 26 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:31,633 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:31,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:31,634 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:31,635 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:31,709 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:31,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [38560094] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:31,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:31,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12
[2021-06-01 18:46:31,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1758536612]
[2021-06-01 18:46:31,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states
[2021-06-01 18:46:31,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:31,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants.
[2021-06-01 18:46:31,710 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:46:31,710 INFO L87 Difference]: Start difference. First operand 285 states and 824 transitions. Second operand has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:32,054 INFO L93 Difference]: Finished difference Result 545 states and 1462 transitions.
[2021-06-01 18:46:32,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-06-01 18:46:32,054 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:32,054 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:32,055 INFO L225 Difference]: With dead ends: 545
[2021-06-01 18:46:32,055 INFO L226 Difference]: Without dead ends: 433
[2021-06-01 18:46:32,055 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 277.6ms TimeCoverageRelationStatistics Valid=133, Invalid=373, Unknown=0, NotChecked=0, Total=506
[2021-06-01 18:46:32,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2021-06-01 18:46:32,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 264.
[2021-06-01 18:46:32,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 264 states, 263 states have (on average 2.9277566539923954) internal successors, (770), 263 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 770 transitions.
[2021-06-01 18:46:32,059 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 770 transitions. Word has length 18
[2021-06-01 18:46:32,059 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:32,059 INFO L482 AbstractCegarLoop]: Abstraction has 264 states and 770 transitions.
[2021-06-01 18:46:32,059 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 2.6666666666666665) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,059 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 770 transitions.
[2021-06-01 18:46:32,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:32,059 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:32,059 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:32,260 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable213
[2021-06-01 18:46:32,260 INFO L430 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:32,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:32,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1770591994, now seen corresponding path program 6 times
[2021-06-01 18:46:32,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:32,260 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140334429]
[2021-06-01 18:46:32,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:32,287 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:32,287 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:32,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140334429]
[2021-06-01 18:46:32,287 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140334429] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:32,287 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273230746]
[2021-06-01 18:46:32,287 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 27 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:32,312 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:46:32,312 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:32,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 9 conjunts are in the unsatisfiable core
[2021-06-01 18:46:32,312 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:32,402 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:32,403 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273230746] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:32,403 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:32,403 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 11
[2021-06-01 18:46:32,403 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889513972]
[2021-06-01 18:46:32,403 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states
[2021-06-01 18:46:32,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:32,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants.
[2021-06-01 18:46:32,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:32,403 INFO L87 Difference]: Start difference. First operand 264 states and 770 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:32,532 INFO L93 Difference]: Finished difference Result 379 states and 1054 transitions.
[2021-06-01 18:46:32,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states.
[2021-06-01 18:46:32,533 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:32,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:32,533 INFO L225 Difference]: With dead ends: 379
[2021-06-01 18:46:32,533 INFO L226 Difference]: Without dead ends: 285
[2021-06-01 18:46:32,533 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 120.4ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:46:32,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states.
[2021-06-01 18:46:32,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 208.
[2021-06-01 18:46:32,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 207 states have (on average 2.9082125603864735) internal successors, (602), 207 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 602 transitions.
[2021-06-01 18:46:32,536 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 602 transitions. Word has length 18
[2021-06-01 18:46:32,536 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:32,536 INFO L482 AbstractCegarLoop]: Abstraction has 208 states and 602 transitions.
[2021-06-01 18:46:32,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,536 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 602 transitions.
[2021-06-01 18:46:32,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19
[2021-06-01 18:46:32,536 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:32,536 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:32,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable217
[2021-06-01 18:46:32,737 INFO L430 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:32,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:32,737 INFO L82 PathProgramCache]: Analyzing trace with hash 1782534729, now seen corresponding path program 9 times
[2021-06-01 18:46:32,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:32,737 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679491744]
[2021-06-01 18:46:32,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:32,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:32,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:32,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679491744]
[2021-06-01 18:46:32,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679491744] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:32,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939325752]
[2021-06-01 18:46:32,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:32,805 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:32,805 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:32,805 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 7 conjunts are in the unsatisfiable core
[2021-06-01 18:46:32,806 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:32,864 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:32,865 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939325752] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:32,865 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:32,865 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 9
[2021-06-01 18:46:32,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758896153]
[2021-06-01 18:46:32,865 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states
[2021-06-01 18:46:32,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:32,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants.
[2021-06-01 18:46:32,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72
[2021-06-01 18:46:32,865 INFO L87 Difference]: Start difference. First operand 208 states and 602 transitions. Second operand has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:32,947 INFO L93 Difference]: Finished difference Result 262 states and 743 transitions.
[2021-06-01 18:46:32,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:46:32,947 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18
[2021-06-01 18:46:32,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:32,947 INFO L225 Difference]: With dead ends: 262
[2021-06-01 18:46:32,947 INFO L226 Difference]: Without dead ends: 215
[2021-06-01 18:46:32,948 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 81.6ms TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110
[2021-06-01 18:46:32,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states.
[2021-06-01 18:46:32,950 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 189.
[2021-06-01 18:46:32,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 189 states, 188 states have (on average 2.9202127659574466) internal successors, (549), 188 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 189 states to 189 states and 549 transitions.
[2021-06-01 18:46:32,951 INFO L78 Accepts]: Start accepts. Automaton has 189 states and 549 transitions. Word has length 18
[2021-06-01 18:46:32,951 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:32,951 INFO L482 AbstractCegarLoop]: Abstraction has 189 states and 549 transitions.
[2021-06-01 18:46:32,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 2.5555555555555554) internal successors, (23), 9 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:32,951 INFO L276 IsEmpty]: Start isEmpty. Operand 189 states and 549 transitions.
[2021-06-01 18:46:32,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:46:32,951 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:32,952 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:33,173 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable221
[2021-06-01 18:46:33,173 INFO L430 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:33,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:33,174 INFO L82 PathProgramCache]: Analyzing trace with hash 440404552, now seen corresponding path program 1 times
[2021-06-01 18:46:33,174 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:33,174 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402414090]
[2021-06-01 18:46:33,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:33,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:33,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:33,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:33,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402414090]
[2021-06-01 18:46:33,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402414090] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:33,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1879062182]
[2021-06-01 18:46:33,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 29 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:33,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:33,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:46:33,551 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:34,671 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:34,675 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:34,676 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,060 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 122
[2021-06-01 18:46:35,061 INFO L628 ElimStorePlain]: treesize reduction 256, result has 63.3 percent of original size
[2021-06-01 18:46:35,068 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:35,069 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,241 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 118
[2021-06-01 18:46:35,241 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:35,247 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:35,248 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,401 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 114
[2021-06-01 18:46:35,401 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:35,413 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:35,418 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,570 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 110
[2021-06-01 18:46:35,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:35,578 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,579 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:46:35,580 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,587 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:35,589 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,776 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 106
[2021-06-01 18:46:35,777 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:35,784 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,784 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:46:35,786 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:35,792 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:35,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:35,795 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:36,073 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95
[2021-06-01 18:46:36,074 INFO L628 ElimStorePlain]: treesize reduction 21, result has 94.2 percent of original size
[2021-06-01 18:46:36,083 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,084 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:46:36,086 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:36,096 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:36,105 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:36,244 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:46:36,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:36,256 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,257 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:36,259 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:36,265 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:36,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:46:36,267 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:36,387 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:46:36,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:36,400 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:46:36,400 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 16 variables, input treesize:705, output treesize:295
[2021-06-01 18:46:36,635 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 92
[2021-06-01 18:46:36,884 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77
[2021-06-01 18:46:37,313 INFO L446 ElimStorePlain]: Different costs {0=[array_6, v_prenex_23], 1=[array_0, v_prenex_22]}
[2021-06-01 18:46:37,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:46:37,319 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:46:37,325 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,329 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:37,330 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,334 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:37,335 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,339 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:37,339 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,344 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:37,345 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,490 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45
[2021-06-01 18:46:37,491 INFO L628 ElimStorePlain]: treesize reduction 256, result has 33.3 percent of original size
[2021-06-01 18:46:37,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:37,495 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:37,545 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:37,545 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:46:37,545 INFO L518 ElimStorePlain]: Eliminatee v_prenex_22 vanished before elimination
[2021-06-01 18:46:37,547 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:46:37,547 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:630, output treesize:105
[2021-06-01 18:46:37,702 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:37,702 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1879062182] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:37,702 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:37,702 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:46:37,702 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [823167601]
[2021-06-01 18:46:37,702 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:46:37,702 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:37,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:46:37,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:46:37,703 INFO L87 Difference]: Start difference. First operand 189 states and 549 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:37,993 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87
[2021-06-01 18:46:38,229 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95
[2021-06-01 18:46:38,697 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 156
[2021-06-01 18:46:39,347 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 170
[2021-06-01 18:46:40,046 WARN L205 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 181
[2021-06-01 18:46:40,718 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 184
[2021-06-01 18:46:41,455 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 188
[2021-06-01 18:46:42,090 WARN L205 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 183
[2021-06-01 18:46:42,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:42,129 INFO L93 Difference]: Finished difference Result 442 states and 1213 transitions.
[2021-06-01 18:46:42,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:46:42,129 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:46:42,129 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:42,130 INFO L225 Difference]: With dead ends: 442
[2021-06-01 18:46:42,130 INFO L226 Difference]: Without dead ends: 380
[2021-06-01 18:46:42,130 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 5126.5ms TimeCoverageRelationStatistics Valid=153, Invalid=603, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:46:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states.
[2021-06-01 18:46:42,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 209.
[2021-06-01 18:46:42,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 208 states have (on average 2.894230769230769) internal successors, (602), 208 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:42,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 602 transitions.
[2021-06-01 18:46:42,133 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 602 transitions. Word has length 20
[2021-06-01 18:46:42,133 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:42,133 INFO L482 AbstractCegarLoop]: Abstraction has 209 states and 602 transitions.
[2021-06-01 18:46:42,133 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:42,133 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 602 transitions.
[2021-06-01 18:46:42,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:46:42,133 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:42,134 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:42,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable225,29 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:42,337 INFO L430 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:42,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:42,337 INFO L82 PathProgramCache]: Analyzing trace with hash 43486898, now seen corresponding path program 2 times
[2021-06-01 18:46:42,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:42,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881454519]
[2021-06-01 18:46:42,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:42,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:42,520 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:42,520 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:42,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881454519]
[2021-06-01 18:46:42,520 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [881454519] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:42,520 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [295628789]
[2021-06-01 18:46:42,520 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 30 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:42,549 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:46:42,549 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:42,550 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:46:42,550 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:43,569 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,569 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:43,572 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:43,580 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:43,581 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:43,588 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:46:43,590 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:43,971 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126
[2021-06-01 18:46:43,972 INFO L628 ElimStorePlain]: treesize reduction 182, result has 71.4 percent of original size
[2021-06-01 18:46:43,982 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,983 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:46:43,985 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:43,990 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:43,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:46:44,001 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,150 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2021-06-01 18:46:44,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,156 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,156 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:44,158 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,163 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:44,172 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,315 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 115
[2021-06-01 18:46:44,316 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,323 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:44,324 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,467 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2021-06-01 18:46:44,467 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,479 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:44,480 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,622 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 107
[2021-06-01 18:46:44,622 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,629 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:44,630 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,781 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2021-06-01 18:46:44,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,786 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:44,801 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,974 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2021-06-01 18:46:44,975 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:44,981 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,982 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,982 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:44,983 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:44,997 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:44,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:46:44,999 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:45,169 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:46:45,170 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:45,182 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:46:45,182 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 16 variables, input treesize:753, output treesize:343
[2021-06-01 18:46:45,445 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101
[2021-06-01 18:46:45,649 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2021-06-01 18:46:46,059 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_53, v_prenex_51, v_prenex_47, array_6, v_prenex_45, v_prenex_55, v_prenex_49], 1=[v_prenex_50, array_0, v_prenex_54, v_prenex_52, v_prenex_46, v_prenex_44, v_prenex_48]}
[2021-06-01 18:46:46,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:46:46,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:46:46,086 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:46:46,100 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:46:46,114 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:46,136 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,150 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:46,150 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,612 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 101
[2021-06-01 18:46:46,613 INFO L628 ElimStorePlain]: treesize reduction 1676, result has 13.6 percent of original size
[2021-06-01 18:46:46,618 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:46,619 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,735 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2021-06-01 18:46:46,735 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:46,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:46,742 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:46,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:46,844 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:46,939 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:46,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:46,945 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:47,073 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:46:47,073 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:47,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:47,081 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:47,184 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:46:47,185 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:47,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:46:47,190 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:47,279 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_50 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_54 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_52 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_46 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_44 vanished before elimination
[2021-06-01 18:46:47,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_48 vanished before elimination
[2021-06-01 18:46:47,284 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:46:47,284 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 21 variables, input treesize:2085, output treesize:175
[2021-06-01 18:46:47,442 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:46:47,651 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:47,651 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [295628789] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:47,651 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:47,651 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:46:47,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269146880]
[2021-06-01 18:46:47,651 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:46:47,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:47,651 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:46:47,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:46:47,652 INFO L87 Difference]: Start difference. First operand 209 states and 602 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:47,923 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83
[2021-06-01 18:46:48,171 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 92
[2021-06-01 18:46:48,645 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 167
[2021-06-01 18:46:48,911 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95
[2021-06-01 18:46:49,421 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 174
[2021-06-01 18:46:49,682 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107
[2021-06-01 18:46:50,446 WARN L205 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 176
[2021-06-01 18:46:50,724 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104
[2021-06-01 18:46:51,531 WARN L205 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 178
[2021-06-01 18:46:52,061 WARN L205 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 170
[2021-06-01 18:46:52,909 WARN L205 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 183
[2021-06-01 18:46:53,164 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107
[2021-06-01 18:46:53,999 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 185
[2021-06-01 18:46:54,575 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 177
[2021-06-01 18:46:54,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:46:54,645 INFO L93 Difference]: Finished difference Result 598 states and 1609 transitions.
[2021-06-01 18:46:54,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:46:54,645 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:46:54,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:46:54,646 INFO L225 Difference]: With dead ends: 598
[2021-06-01 18:46:54,646 INFO L226 Difference]: Without dead ends: 526
[2021-06-01 18:46:54,646 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 7543.0ms TimeCoverageRelationStatistics Valid=245, Invalid=877, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:46:54,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states.
[2021-06-01 18:46:54,649 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 244.
[2021-06-01 18:46:54,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 244 states, 243 states have (on average 2.9012345679012346) internal successors, (705), 243 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:54,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 705 transitions.
[2021-06-01 18:46:54,650 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 705 transitions. Word has length 20
[2021-06-01 18:46:54,650 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:46:54,650 INFO L482 AbstractCegarLoop]: Abstraction has 244 states and 705 transitions.
[2021-06-01 18:46:54,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:54,650 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 705 transitions.
[2021-06-01 18:46:54,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:46:54,651 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:46:54,651 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:46:54,851 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable345
[2021-06-01 18:46:54,851 INFO L430 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:46:54,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:46:54,851 INFO L82 PathProgramCache]: Analyzing trace with hash 123064008, now seen corresponding path program 3 times
[2021-06-01 18:46:54,851 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:46:54,852 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137399395]
[2021-06-01 18:46:54,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:46:54,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:46:55,066 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:55,066 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:46:55,066 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137399395]
[2021-06-01 18:46:55,067 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137399395] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:55,067 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483961130]
[2021-06-01 18:46:55,067 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 31 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:46:55,105 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:46:55,106 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:46:55,106 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:46:55,107 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:46:55,866 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:55,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:55,867 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,207 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102
[2021-06-01 18:46:56,207 INFO L628 ElimStorePlain]: treesize reduction 183, result has 67.9 percent of original size
[2021-06-01 18:46:56,212 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:56,214 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,358 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2021-06-01 18:46:56,358 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:56,363 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,365 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:56,367 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,371 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:56,373 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,512 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:46:56,512 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:56,517 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:56,528 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,670 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:46:56,670 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:56,675 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,675 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:56,677 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,682 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,682 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:56,683 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,913 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80
[2021-06-01 18:46:56,914 INFO L628 ElimStorePlain]: treesize reduction 34, result has 89.8 percent of original size
[2021-06-01 18:46:56,918 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,919 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:46:56,920 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:56,924 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:46:56,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:46:56,925 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:57,031 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:46:57,031 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:577, output treesize:243
[2021-06-01 18:46:57,229 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86
[2021-06-01 18:46:57,579 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 84
[2021-06-01 18:46:57,874 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_83, v_prenex_81, v_prenex_85, array_6, v_prenex_79, v_prenex_77], 1=[v_prenex_82, v_prenex_80, v_prenex_76, array_3, v_prenex_84, v_prenex_78]}
[2021-06-01 18:46:57,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:46:57,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:46:57,895 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,903 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:57,905 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,914 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:57,914 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,924 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:57,924 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:57,932 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:46:57,933 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,220 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 84
[2021-06-01 18:46:58,221 INFO L628 ElimStorePlain]: treesize reduction 1140, result has 14.5 percent of original size
[2021-06-01 18:46:58,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:46:58,226 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:58,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:46:58,295 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,356 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:58,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:58,362 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:58,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:58,426 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,484 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:58,487 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:46:58,488 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:46:58,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_82 vanished before elimination
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_80 vanished before elimination
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_76 vanished before elimination
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_84 vanished before elimination
[2021-06-01 18:46:58,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_78 vanished before elimination
[2021-06-01 18:46:58,548 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:46:58,548 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1537, output treesize:107
[2021-06-01 18:46:58,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:46:58,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483961130] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:46:58,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:46:58,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:46:58,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181331039]
[2021-06-01 18:46:58,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:46:58,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:46:58,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:46:58,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:46:58,695 INFO L87 Difference]: Start difference. First operand 244 states and 705 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:46:58,955 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73
[2021-06-01 18:46:59,181 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81
[2021-06-01 18:46:59,467 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 87
[2021-06-01 18:46:59,969 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 155
[2021-06-01 18:47:00,595 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 174
[2021-06-01 18:47:00,816 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95
[2021-06-01 18:47:01,006 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88
[2021-06-01 18:47:01,303 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107
[2021-06-01 18:47:01,542 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90
[2021-06-01 18:47:01,867 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 109
[2021-06-01 18:47:02,134 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 97
[2021-06-01 18:47:02,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:02,177 INFO L93 Difference]: Finished difference Result 466 states and 1295 transitions.
[2021-06-01 18:47:02,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:47:02,178 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:02,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:02,178 INFO L225 Difference]: With dead ends: 466
[2021-06-01 18:47:02,178 INFO L226 Difference]: Without dead ends: 403
[2021-06-01 18:47:02,179 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 3900.7ms TimeCoverageRelationStatistics Valid=179, Invalid=751, Unknown=0, NotChecked=0, Total=930
[2021-06-01 18:47:02,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 403 states.
[2021-06-01 18:47:02,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 403 to 259.
[2021-06-01 18:47:02,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 2.887596899224806) internal successors, (745), 258 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 745 transitions.
[2021-06-01 18:47:02,182 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 745 transitions. Word has length 20
[2021-06-01 18:47:02,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:02,182 INFO L482 AbstractCegarLoop]: Abstraction has 259 states and 745 transitions.
[2021-06-01 18:47:02,182 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:02,182 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 745 transitions.
[2021-06-01 18:47:02,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:02,183 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:02,183 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:02,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable517,31 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:02,397 INFO L430 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:02,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:02,397 INFO L82 PathProgramCache]: Analyzing trace with hash 602348684, now seen corresponding path program 4 times
[2021-06-01 18:47:02,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:02,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [183045494]
[2021-06-01 18:47:02,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:02,582 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:02,582 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:02,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [183045494]
[2021-06-01 18:47:02,582 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [183045494] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:02,582 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1967427119]
[2021-06-01 18:47:02,582 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 32 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:02,610 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:47:02,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:02,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:47:02,612 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:03,595 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,595 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:03,597 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:03,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,605 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:03,606 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:03,615 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,615 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:03,617 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:03,625 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,625 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:03,626 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:03,632 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,633 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:03,634 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:03,639 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:03,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:03,640 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,104 WARN L205 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83
[2021-06-01 18:47:04,105 INFO L628 ElimStorePlain]: treesize reduction 602, result has 44.9 percent of original size
[2021-06-01 18:47:04,110 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,110 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:04,111 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:04,117 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:04,122 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,314 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-06-01 18:47:04,315 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:04,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:04,321 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,326 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,326 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:04,327 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,332 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:04,333 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,673 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73
[2021-06-01 18:47:04,674 INFO L628 ElimStorePlain]: treesize reduction 27, result has 93.9 percent of original size
[2021-06-01 18:47:04,678 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,679 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:04,693 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:04,700 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,709 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:04,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:04,711 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:04,992 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65
[2021-06-01 18:47:04,992 INFO L628 ElimStorePlain]: treesize reduction 34, result has 90.6 percent of original size
[2021-06-01 18:47:05,001 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:47:05,002 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:306
[2021-06-01 18:47:05,275 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81
[2021-06-01 18:47:05,511 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_98, array_6, v_prenex_100, v_prenex_102, v_prenex_104], 1=[array_3, v_prenex_97, v_prenex_101, v_prenex_99, v_prenex_103]}
[2021-06-01 18:47:05,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:05,522 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:05,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:05,532 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:05,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:05,544 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:05,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:05,554 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:05,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:05,564 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:05,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:05,574 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,027 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 90
[2021-06-01 18:47:06,028 INFO L628 ElimStorePlain]: treesize reduction 1183, result has 22.1 percent of original size
[2021-06-01 18:47:06,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:06,036 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,170 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-06-01 18:47:06,171 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:06,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:06,176 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,304 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:47:06,304 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:06,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:06,310 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:06,315 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,554 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69
[2021-06-01 18:47:06,555 INFO L628 ElimStorePlain]: treesize reduction 8, result has 97.3 percent of original size
[2021-06-01 18:47:06,559 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:06,560 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:06,674 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:47:06,674 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:06,674 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:47:06,674 INFO L518 ElimStorePlain]: Eliminatee v_prenex_97 vanished before elimination
[2021-06-01 18:47:06,674 INFO L518 ElimStorePlain]: Eliminatee v_prenex_101 vanished before elimination
[2021-06-01 18:47:06,674 INFO L518 ElimStorePlain]: Eliminatee v_prenex_99 vanished before elimination
[2021-06-01 18:47:06,674 INFO L518 ElimStorePlain]: Eliminatee v_prenex_103 vanished before elimination
[2021-06-01 18:47:06,680 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 10 dim-1 vars, End of recursive call: and 12 xjuncts.
[2021-06-01 18:47:06,680 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 15 variables, input treesize:1681, output treesize:238
[2021-06-01 18:47:06,841 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36
[2021-06-01 18:47:07,030 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:47:07,132 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:07,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1967427119] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:07,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:07,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:07,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [20786991]
[2021-06-01 18:47:07,132 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:07,132 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:07,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:07,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:07,133 INFO L87 Difference]: Start difference. First operand 259 states and 745 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:07,395 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78
[2021-06-01 18:47:07,642 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92
[2021-06-01 18:47:08,027 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 94
[2021-06-01 18:47:08,515 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 151
[2021-06-01 18:47:08,903 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 113
[2021-06-01 18:47:09,337 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 120
[2021-06-01 18:47:09,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:09,384 INFO L93 Difference]: Finished difference Result 448 states and 1254 transitions.
[2021-06-01 18:47:09,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:47:09,384 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:09,385 INFO L225 Difference]: With dead ends: 448
[2021-06-01 18:47:09,385 INFO L226 Difference]: Without dead ends: 433
[2021-06-01 18:47:09,385 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3008.4ms TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:47:09,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states.
[2021-06-01 18:47:09,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 259.
[2021-06-01 18:47:09,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 259 states, 258 states have (on average 2.887596899224806) internal successors, (745), 258 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:09,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 259 states to 259 states and 745 transitions.
[2021-06-01 18:47:09,388 INFO L78 Accepts]: Start accepts. Automaton has 259 states and 745 transitions. Word has length 20
[2021-06-01 18:47:09,388 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:09,388 INFO L482 AbstractCegarLoop]: Abstraction has 259 states and 745 transitions.
[2021-06-01 18:47:09,388 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:09,388 INFO L276 IsEmpty]: Start isEmpty. Operand 259 states and 745 transitions.
[2021-06-01 18:47:09,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:09,389 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:09,389 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:09,592 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable660,32 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:09,593 INFO L430 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:09,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:09,594 INFO L82 PathProgramCache]: Analyzing trace with hash -1096371704, now seen corresponding path program 5 times
[2021-06-01 18:47:09,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:09,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990393084]
[2021-06-01 18:47:09,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:09,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:09,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:09,855 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:09,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990393084]
[2021-06-01 18:47:09,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990393084] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:09,855 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189661706]
[2021-06-01 18:47:09,855 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 33 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:09,889 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:47:09,889 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:09,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:47:09,891 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:10,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:47:10,123 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,127 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:10,127 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:10,131 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:10,135 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:47:10,140 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:10,144 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:10,148 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,151 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:10,152 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:10,156 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:47:10,160 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:10,164 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:10,168 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,172 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:47:10,173 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:47:10,177 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:10,180 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,184 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:10,185 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:10,189 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:10,192 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:10,312 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41
[2021-06-01 18:47:10,313 INFO L628 ElimStorePlain]: treesize reduction 99, result has 63.7 percent of original size
[2021-06-01 18:47:10,314 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:47:10,314 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 1 variables, input treesize:799, output treesize:174
[2021-06-01 18:47:10,727 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:47:10,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:10,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189661706] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:10,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:10,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:47:10,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176295428]
[2021-06-01 18:47:10,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:47:10,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:10,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:47:10,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:47:10,905 INFO L87 Difference]: Start difference. First operand 259 states and 745 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:11,285 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48
[2021-06-01 18:47:11,505 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 50
[2021-06-01 18:47:11,932 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88
[2021-06-01 18:47:12,163 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64
[2021-06-01 18:47:12,405 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74
[2021-06-01 18:47:12,552 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57
[2021-06-01 18:47:12,816 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80
[2021-06-01 18:47:13,094 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77
[2021-06-01 18:47:13,306 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62
[2021-06-01 18:47:13,459 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60
[2021-06-01 18:47:13,854 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 81
[2021-06-01 18:47:14,093 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 68
[2021-06-01 18:47:14,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:14,126 INFO L93 Difference]: Finished difference Result 503 states and 1384 transitions.
[2021-06-01 18:47:14,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:47:14,126 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:14,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:14,127 INFO L225 Difference]: With dead ends: 503
[2021-06-01 18:47:14,127 INFO L226 Difference]: Without dead ends: 444
[2021-06-01 18:47:14,127 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 3639.5ms TimeCoverageRelationStatistics Valid=214, Invalid=908, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:47:14,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states.
[2021-06-01 18:47:14,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 265.
[2021-06-01 18:47:14,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 2.9166666666666665) internal successors, (770), 264 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:14,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 770 transitions.
[2021-06-01 18:47:14,132 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 770 transitions. Word has length 20
[2021-06-01 18:47:14,132 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:14,132 INFO L482 AbstractCegarLoop]: Abstraction has 265 states and 770 transitions.
[2021-06-01 18:47:14,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:14,132 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 770 transitions.
[2021-06-01 18:47:14,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:14,133 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:14,133 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:14,348 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 33 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable831
[2021-06-01 18:47:14,349 INFO L430 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:14,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:14,349 INFO L82 PathProgramCache]: Analyzing trace with hash 1137578486, now seen corresponding path program 6 times
[2021-06-01 18:47:14,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:14,349 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818607847]
[2021-06-01 18:47:14,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:14,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:14,530 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:14,530 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:14,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818607847]
[2021-06-01 18:47:14,530 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818607847] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:14,530 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [606835342]
[2021-06-01 18:47:14,530 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 34 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:14,566 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:47:14,566 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:14,567 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:47:14,568 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:15,203 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:15,204 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:15,613 WARN L205 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 132
[2021-06-01 18:47:15,614 INFO L628 ElimStorePlain]: treesize reduction 238, result has 68.1 percent of original size
[2021-06-01 18:47:15,620 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,620 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:15,621 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:15,626 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:15,628 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:15,811 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 127
[2021-06-01 18:47:15,811 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:15,817 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,817 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:15,818 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:15,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:15,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:15,825 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,001 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 123
[2021-06-01 18:47:16,001 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:16,007 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,007 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:47:16,010 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,015 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:47:16,016 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,308 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 112
[2021-06-01 18:47:16,308 INFO L628 ElimStorePlain]: treesize reduction 24, result has 94.2 percent of original size
[2021-06-01 18:47:16,331 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,332 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:16,333 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,340 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:16,341 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,517 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 108
[2021-06-01 18:47:16,517 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:16,525 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:16,527 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,685 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 104
[2021-06-01 18:47:16,686 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:16,691 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:16,692 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,829 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:47:16,830 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:16,834 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:16,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:16,836 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:16,970 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2021-06-01 18:47:16,970 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:16,978 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:47:16,978 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 16 variables, input treesize:753, output treesize:342
[2021-06-01 18:47:17,189 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 101
[2021-06-01 18:47:17,800 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_130, v_prenex_132, array_6, v_prenex_134, v_prenex_136, v_prenex_126, v_prenex_128], 1=[v_prenex_129, array_0, v_prenex_131, v_prenex_133, v_prenex_135, v_prenex_125, v_prenex_127]}
[2021-06-01 18:47:17,811 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:17,811 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:17,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:17,822 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:17,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:17,835 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:17,845 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:17,845 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:17,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:17,855 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:17,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:17,865 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,303 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 104
[2021-06-01 18:47:18,304 INFO L628 ElimStorePlain]: treesize reduction 1706, result has 13.8 percent of original size
[2021-06-01 18:47:18,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:18,310 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,415 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2021-06-01 18:47:18,416 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:18,422 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,536 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:47:18,536 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:18,542 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:18,652 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,747 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:47:18,752 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,845 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:18,850 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:18,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_129 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_131 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_133 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_135 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_125 vanished before elimination
[2021-06-01 18:47:18,941 INFO L518 ElimStorePlain]: Eliminatee v_prenex_127 vanished before elimination
[2021-06-01 18:47:18,945 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:47:18,945 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 21 variables, input treesize:2085, output treesize:175
[2021-06-01 18:47:19,104 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:47:19,260 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:47:19,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:19,344 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [606835342] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:19,344 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:19,344 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:19,344 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429718123]
[2021-06-01 18:47:19,344 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:19,344 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:19,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:19,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:19,345 INFO L87 Difference]: Start difference. First operand 265 states and 770 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:19,618 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83
[2021-06-01 18:47:19,868 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 89
[2021-06-01 18:47:20,182 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94
[2021-06-01 18:47:20,683 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 173
[2021-06-01 18:47:21,140 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 116
[2021-06-01 18:47:21,379 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103
[2021-06-01 18:47:21,868 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 119
[2021-06-01 18:47:22,178 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 108
[2021-06-01 18:47:22,675 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123
[2021-06-01 18:47:22,888 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 97
[2021-06-01 18:47:23,423 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 126
[2021-06-01 18:47:23,672 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 100
[2021-06-01 18:47:24,014 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 115
[2021-06-01 18:47:24,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:24,080 INFO L93 Difference]: Finished difference Result 552 states and 1522 transitions.
[2021-06-01 18:47:24,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:47:24,081 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:24,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:24,082 INFO L225 Difference]: With dead ends: 552
[2021-06-01 18:47:24,082 INFO L226 Difference]: Without dead ends: 480
[2021-06-01 18:47:24,082 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 5253.8ms TimeCoverageRelationStatistics Valid=205, Invalid=851, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:47:24,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states.
[2021-06-01 18:47:24,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 265.
[2021-06-01 18:47:24,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 2.9166666666666665) internal successors, (770), 264 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:24,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 770 transitions.
[2021-06-01 18:47:24,088 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 770 transitions. Word has length 20
[2021-06-01 18:47:24,088 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:24,088 INFO L482 AbstractCegarLoop]: Abstraction has 265 states and 770 transitions.
[2021-06-01 18:47:24,088 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:24,088 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 770 transitions.
[2021-06-01 18:47:24,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:24,089 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:24,089 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:24,308 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable906,34 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:24,309 INFO L430 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:24,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:24,309 INFO L82 PathProgramCache]: Analyzing trace with hash 2043738866, now seen corresponding path program 7 times
[2021-06-01 18:47:24,309 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:24,309 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231820387]
[2021-06-01 18:47:24,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:24,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:24,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:24,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231820387]
[2021-06-01 18:47:24,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231820387] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:24,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [564747784]
[2021-06-01 18:47:24,486 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 35 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:24,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:24,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:47:24,521 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:25,163 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,164 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:25,165 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,172 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,173 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:25,174 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,181 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,182 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,182 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:25,183 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,190 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,190 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:25,192 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,197 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,197 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:25,198 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,203 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:25,204 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,544 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76
[2021-06-01 18:47:25,544 INFO L628 ElimStorePlain]: treesize reduction 512, result has 43.6 percent of original size
[2021-06-01 18:47:25,549 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,549 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:25,551 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,555 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,555 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:25,556 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:25,561 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,804 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69
[2021-06-01 18:47:25,805 INFO L628 ElimStorePlain]: treesize reduction 28, result has 92.4 percent of original size
[2021-06-01 18:47:25,809 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,809 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:25,810 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,814 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,815 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,815 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:25,815 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:25,820 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,936 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:47:25,936 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:25,940 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,941 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:25,942 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,945 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:25,946 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:25,950 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:25,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:25,951 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,055 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 59
[2021-06-01 18:47:26,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:26,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:47:26,061 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1009, output treesize:229
[2021-06-01 18:47:26,222 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73
[2021-06-01 18:47:26,749 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_150, v_prenex_152, array_6], 1=[array_3, v_prenex_151, v_prenex_149]}
[2021-06-01 18:47:26,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:26,756 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:26,762 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,767 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:26,768 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,772 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:26,773 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:26,781 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,786 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:26,786 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:26,980 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 57
[2021-06-01 18:47:26,980 INFO L628 ElimStorePlain]: treesize reduction 675, result has 20.0 percent of original size
[2021-06-01 18:47:26,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:26,985 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:27,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:27,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:27,050 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:27,109 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:27,109 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:47:27,109 INFO L518 ElimStorePlain]: Eliminatee v_prenex_151 vanished before elimination
[2021-06-01 18:47:27,109 INFO L518 ElimStorePlain]: Eliminatee v_prenex_149 vanished before elimination
[2021-06-01 18:47:27,111 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:47:27,111 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:978, output treesize:131
[2021-06-01 18:47:27,303 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:27,304 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [564747784] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:27,304 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:27,304 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:27,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635223873]
[2021-06-01 18:47:27,304 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:27,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:27,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:27,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:27,304 INFO L87 Difference]: Start difference. First operand 265 states and 770 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:27,548 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82
[2021-06-01 18:47:27,802 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 87
[2021-06-01 18:47:28,202 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139
[2021-06-01 18:47:28,740 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 151
[2021-06-01 18:47:29,300 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 161
[2021-06-01 18:47:29,905 WARN L205 SmtUtils]: Spent 513.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 169
[2021-06-01 18:47:29,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:29,953 INFO L93 Difference]: Finished difference Result 498 states and 1407 transitions.
[2021-06-01 18:47:29,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:47:29,953 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:29,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:29,954 INFO L225 Difference]: With dead ends: 498
[2021-06-01 18:47:29,954 INFO L226 Difference]: Without dead ends: 483
[2021-06-01 18:47:29,954 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3104.5ms TimeCoverageRelationStatistics Valid=121, Invalid=529, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:47:29,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states.
[2021-06-01 18:47:29,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 280.
[2021-06-01 18:47:29,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 279 states have (on average 2.913978494623656) internal successors, (813), 279 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:29,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 813 transitions.
[2021-06-01 18:47:29,958 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 813 transitions. Word has length 20
[2021-06-01 18:47:29,958 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:29,958 INFO L482 AbstractCegarLoop]: Abstraction has 280 states and 813 transitions.
[2021-06-01 18:47:29,958 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:29,958 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 813 transitions.
[2021-06-01 18:47:29,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:29,958 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:29,958 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:30,158 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 35 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1058
[2021-06-01 18:47:30,159 INFO L430 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:30,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:30,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1723983538, now seen corresponding path program 8 times
[2021-06-01 18:47:30,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:30,159 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1442787447]
[2021-06-01 18:47:30,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:30,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:30,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:30,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:30,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1442787447]
[2021-06-01 18:47:30,326 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1442787447] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:30,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520208368]
[2021-06-01 18:47:30,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 36 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:30,363 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:47:30,363 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:30,364 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:47:30,365 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:30,883 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:30,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:30,885 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,165 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 99
[2021-06-01 18:47:31,165 INFO L628 ElimStorePlain]: treesize reduction 173, result has 67.6 percent of original size
[2021-06-01 18:47:31,170 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:31,171 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,310 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:47:31,310 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:31,315 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:31,316 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,445 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2021-06-01 18:47:31,445 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:31,450 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,450 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:47:31,461 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,465 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:47:31,467 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,579 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:47:31,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:31,584 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,584 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:31,586 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,590 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:31,591 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:31,686 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,686 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:31,687 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,691 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:31,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:31,692 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:31,778 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:31,784 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:47:31,784 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:541, output treesize:219
[2021-06-01 18:47:31,951 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84
[2021-06-01 18:47:32,292 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_171, v_prenex_173, v_prenex_165, array_6, v_prenex_167, v_prenex_169], 1=[v_prenex_170, v_prenex_172, array_3, v_prenex_164, v_prenex_166, v_prenex_168]}
[2021-06-01 18:47:32,300 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:32,300 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:32,308 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:32,316 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:32,324 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,331 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:32,332 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,339 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:32,339 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,684 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85
[2021-06-01 18:47:32,684 INFO L628 ElimStorePlain]: treesize reduction 1337, result has 14.6 percent of original size
[2021-06-01 18:47:32,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:32,690 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,774 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:32,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:47:32,780 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:32,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:32,872 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:32,952 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:32,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:32,957 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:33,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:33,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:33,042 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:33,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:33,118 INFO L518 ElimStorePlain]: Eliminatee v_prenex_170 vanished before elimination
[2021-06-01 18:47:33,119 INFO L518 ElimStorePlain]: Eliminatee v_prenex_172 vanished before elimination
[2021-06-01 18:47:33,119 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:47:33,119 INFO L518 ElimStorePlain]: Eliminatee v_prenex_164 vanished before elimination
[2021-06-01 18:47:33,119 INFO L518 ElimStorePlain]: Eliminatee v_prenex_166 vanished before elimination
[2021-06-01 18:47:33,119 INFO L518 ElimStorePlain]: Eliminatee v_prenex_168 vanished before elimination
[2021-06-01 18:47:33,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:47:33,133 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1719, output treesize:148
[2021-06-01 18:47:33,291 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33
[2021-06-01 18:47:33,477 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32
[2021-06-01 18:47:33,547 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:33,547 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520208368] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:33,547 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:33,547 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:33,547 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519008611]
[2021-06-01 18:47:33,547 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:33,547 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:33,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:33,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:33,548 INFO L87 Difference]: Start difference. First operand 280 states and 813 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:34,034 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 64
[2021-06-01 18:47:34,428 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 123
[2021-06-01 18:47:35,031 WARN L205 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128
[2021-06-01 18:47:35,643 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 135
[2021-06-01 18:47:36,400 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 152
[2021-06-01 18:47:37,026 WARN L205 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 141
[2021-06-01 18:47:37,794 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 158
[2021-06-01 18:47:37,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:37,862 INFO L93 Difference]: Finished difference Result 570 states and 1579 transitions.
[2021-06-01 18:47:37,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:47:37,863 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:37,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:37,863 INFO L225 Difference]: With dead ends: 570
[2021-06-01 18:47:37,863 INFO L226 Difference]: Without dead ends: 528
[2021-06-01 18:47:37,864 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 4766.3ms TimeCoverageRelationStatistics Valid=151, Invalid=605, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:47:37,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states.
[2021-06-01 18:47:37,867 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 286.
[2021-06-01 18:47:37,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286 states, 285 states have (on average 2.9298245614035086) internal successors, (835), 285 states have internal predecessors, (835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:37,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 835 transitions.
[2021-06-01 18:47:37,867 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 835 transitions. Word has length 20
[2021-06-01 18:47:37,867 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:37,867 INFO L482 AbstractCegarLoop]: Abstraction has 286 states and 835 transitions.
[2021-06-01 18:47:37,868 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:37,868 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 835 transitions.
[2021-06-01 18:47:37,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:37,868 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:37,868 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:38,068 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1209,36 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:38,069 INFO L430 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:38,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:38,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1163299806, now seen corresponding path program 9 times
[2021-06-01 18:47:38,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:38,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322195496]
[2021-06-01 18:47:38,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:38,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:38,219 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:38,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322195496]
[2021-06-01 18:47:38,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322195496] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:38,219 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1700147499]
[2021-06-01 18:47:38,219 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 37 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:38,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:47:38,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:38,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:47:38,248 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:38,887 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,888 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:38,889 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:38,894 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,894 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:38,895 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:38,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,901 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:38,902 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:38,906 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,907 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,907 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:38,908 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:38,913 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,914 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:38,915 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:38,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:38,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:38,921 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,232 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69
[2021-06-01 18:47:39,233 INFO L628 ElimStorePlain]: treesize reduction 426, result has 47.3 percent of original size
[2021-06-01 18:47:39,237 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,237 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:47:39,239 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:47:39,245 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,248 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:39,250 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,486 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62
[2021-06-01 18:47:39,487 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:47:39,491 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,491 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,492 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:39,494 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,498 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,499 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:39,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:39,500 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,504 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:39,504 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:39,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:39,607 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:47:39,607 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:919, output treesize:234
[2021-06-01 18:47:40,025 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 82
[2021-06-01 18:47:40,264 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_191, v_prenex_193, v_prenex_195, v_prenex_197, array_6, v_prenex_199], 1=[v_prenex_190, v_prenex_192, array_3, v_prenex_194, v_prenex_196, v_prenex_198]}
[2021-06-01 18:47:40,272 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:40,273 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,279 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:40,280 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,287 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:40,288 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,294 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:40,295 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,302 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:40,302 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,309 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:40,309 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,583 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 81
[2021-06-01 18:47:40,583 INFO L628 ElimStorePlain]: treesize reduction 1080, result has 14.1 percent of original size
[2021-06-01 18:47:40,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:40,589 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,652 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:40,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:40,657 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,718 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:40,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:40,723 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:40,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:40,787 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,844 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:40,848 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:40,849 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:40,905 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee v_prenex_190 vanished before elimination
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee v_prenex_192 vanished before elimination
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee v_prenex_194 vanished before elimination
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee v_prenex_196 vanished before elimination
[2021-06-01 18:47:40,905 INFO L518 ElimStorePlain]: Eliminatee v_prenex_198 vanished before elimination
[2021-06-01 18:47:40,907 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:47:40,907 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1489, output treesize:107
[2021-06-01 18:47:41,069 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:41,070 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1700147499] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:41,070 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:41,070 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:41,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455290693]
[2021-06-01 18:47:41,070 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:41,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:41,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:41,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:41,071 INFO L87 Difference]: Start difference. First operand 286 states and 835 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:41,552 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64
[2021-06-01 18:47:41,772 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70
[2021-06-01 18:47:42,212 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 133
[2021-06-01 18:47:42,811 WARN L205 SmtUtils]: Spent 529.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 136
[2021-06-01 18:47:43,091 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 86
[2021-06-01 18:47:43,350 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 89
[2021-06-01 18:47:43,573 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80
[2021-06-01 18:47:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:43,592 INFO L93 Difference]: Finished difference Result 469 states and 1324 transitions.
[2021-06-01 18:47:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:47:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:43,593 INFO L225 Difference]: With dead ends: 469
[2021-06-01 18:47:43,594 INFO L226 Difference]: Without dead ends: 421
[2021-06-01 18:47:43,594 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2884.4ms TimeCoverageRelationStatistics Valid=133, Invalid=623, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:47:43,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 421 states.
[2021-06-01 18:47:43,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 421 to 292.
[2021-06-01 18:47:43,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 291 states have (on average 2.924398625429553) internal successors, (851), 291 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:43,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 851 transitions.
[2021-06-01 18:47:43,597 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 851 transitions. Word has length 20
[2021-06-01 18:47:43,597 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:43,597 INFO L482 AbstractCegarLoop]: Abstraction has 292 states and 851 transitions.
[2021-06-01 18:47:43,597 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:43,597 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 851 transitions.
[2021-06-01 18:47:43,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:43,597 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:43,598 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:43,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 37 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1325
[2021-06-01 18:47:43,800 INFO L430 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash 1642584482, now seen corresponding path program 10 times
[2021-06-01 18:47:43,800 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:43,800 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [32287916]
[2021-06-01 18:47:43,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:43,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:44,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:44,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:44,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [32287916]
[2021-06-01 18:47:44,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [32287916] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:44,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707297609]
[2021-06-01 18:47:44,010 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 38 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:44,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:47:44,051 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:44,051 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:47:44,052 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:44,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:44,921 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:44,927 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,927 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:44,928 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:44,934 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,935 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:44,936 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:44,941 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,942 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:44,943 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:44,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:44,950 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:44,956 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:44,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:44,957 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,427 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85
[2021-06-01 18:47:45,427 INFO L628 ElimStorePlain]: treesize reduction 593, result has 45.6 percent of original size
[2021-06-01 18:47:45,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:45,433 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,438 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,438 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,439 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:45,439 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,444 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,444 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:45,445 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,808 WARN L205 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78
[2021-06-01 18:47:45,809 INFO L628 ElimStorePlain]: treesize reduction 27, result has 94.2 percent of original size
[2021-06-01 18:47:45,813 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,814 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:45,815 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:45,820 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:45,825 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:45,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:45,826 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:46,125 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72
[2021-06-01 18:47:46,126 INFO L628 ElimStorePlain]: treesize reduction 36, result has 91.0 percent of original size
[2021-06-01 18:47:46,130 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:46,131 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:46,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:46,132 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:46,136 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:46,136 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:46,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:46,137 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:46,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:46,142 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:46,285 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:47:46,286 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:46,293 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:47:46,293 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:321
[2021-06-01 18:47:46,540 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84
[2021-06-01 18:47:46,705 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_218, v_prenex_220, array_6, v_prenex_233, v_prenex_222, v_prenex_212, v_prenex_224, v_prenex_214, v_prenex_226, v_prenex_216], 1=[v_prenex_217, v_prenex_219, array_3, v_prenex_221, v_prenex_211, v_prenex_223, v_prenex_213, v_prenex_225, v_prenex_215, v_prenex_227]}
[2021-06-01 18:47:46,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:46,716 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:47,076 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 88
[2021-06-01 18:47:47,076 INFO L628 ElimStorePlain]: treesize reduction 888, result has 24.7 percent of original size
[2021-06-01 18:47:47,077 INFO L518 ElimStorePlain]: Eliminatee v_prenex_220 vanished before elimination
[2021-06-01 18:47:47,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:47,082 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:47,200 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-06-01 18:47:47,200 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:47,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:47,205 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:47,311 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 75
[2021-06-01 18:47:47,312 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:47,316 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:47,317 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:47,421 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:47:47,421 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:47,421 INFO L518 ElimStorePlain]: Eliminatee v_prenex_212 vanished before elimination
[2021-06-01 18:47:47,421 INFO L518 ElimStorePlain]: Eliminatee v_prenex_224 vanished before elimination
[2021-06-01 18:47:47,421 INFO L518 ElimStorePlain]: Eliminatee v_prenex_214 vanished before elimination
[2021-06-01 18:47:47,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:47,426 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:47,525 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_216 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_217 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_219 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_221 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_211 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_223 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_213 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_225 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_215 vanished before elimination
[2021-06-01 18:47:47,525 INFO L518 ElimStorePlain]: Eliminatee v_prenex_227 vanished before elimination
[2021-06-01 18:47:47,528 INFO L550 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 20 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:47:47,528 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 30 variables, input treesize:1186, output treesize:216
[2021-06-01 18:47:47,689 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36
[2021-06-01 18:47:47,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:47,872 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707297609] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:47,872 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:47,872 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:47:47,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651057886]
[2021-06-01 18:47:47,872 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:47:47,872 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:47,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:47:47,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:47:47,872 INFO L87 Difference]: Start difference. First operand 292 states and 851 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:48,132 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76
[2021-06-01 18:47:48,421 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89
[2021-06-01 18:47:48,792 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 93
[2021-06-01 18:47:49,292 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 153
[2021-06-01 18:47:49,684 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 115
[2021-06-01 18:47:50,116 WARN L205 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122
[2021-06-01 18:47:50,440 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 103
[2021-06-01 18:47:50,767 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 100
[2021-06-01 18:47:51,116 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107
[2021-06-01 18:47:51,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:51,162 INFO L93 Difference]: Finished difference Result 549 states and 1533 transitions.
[2021-06-01 18:47:51,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:47:51,163 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:51,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:51,164 INFO L225 Difference]: With dead ends: 549
[2021-06-01 18:47:51,164 INFO L226 Difference]: Without dead ends: 519
[2021-06-01 18:47:51,164 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3841.5ms TimeCoverageRelationStatistics Valid=150, Invalid=662, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:47:51,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 519 states.
[2021-06-01 18:47:51,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 519 to 304.
[2021-06-01 18:47:51,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 304 states, 303 states have (on average 2.933993399339934) internal successors, (889), 303 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:51,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304 states to 304 states and 889 transitions.
[2021-06-01 18:47:51,170 INFO L78 Accepts]: Start accepts. Automaton has 304 states and 889 transitions. Word has length 20
[2021-06-01 18:47:51,170 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:51,170 INFO L482 AbstractCegarLoop]: Abstraction has 304 states and 889 transitions.
[2021-06-01 18:47:51,170 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:51,171 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states and 889 transitions.
[2021-06-01 18:47:51,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:51,171 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:51,171 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:51,393 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1471,38 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:51,393 INFO L430 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:51,394 INFO L82 PathProgramCache]: Analyzing trace with hash -56135906, now seen corresponding path program 11 times
[2021-06-01 18:47:51,394 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:51,394 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976233918]
[2021-06-01 18:47:51,394 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:51,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:51,611 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:51,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:51,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976233918]
[2021-06-01 18:47:51,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976233918] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:51,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [891045612]
[2021-06-01 18:47:51,612 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 39 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:51,639 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:47:51,639 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:51,640 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:47:51,641 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:51,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,826 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:51,830 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:51,834 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:51,839 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:51,843 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,846 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:47:51,847 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,850 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:51,851 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,855 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:51,859 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,863 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,867 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:51,871 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:51,875 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,878 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:51,882 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:47:51,886 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:47:51,890 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:51,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:51,895 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:52,016 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40
[2021-06-01 18:47:52,017 INFO L628 ElimStorePlain]: treesize reduction 129, result has 57.6 percent of original size
[2021-06-01 18:47:52,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:47:52,018 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 1 variables, input treesize:715, output treesize:175
[2021-06-01 18:47:52,386 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33
[2021-06-01 18:47:52,540 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:52,541 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [891045612] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:52,541 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:47:52,541 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:47:52,541 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127305458]
[2021-06-01 18:47:52,541 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:47:52,541 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:47:52,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:47:52,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:47:52,541 INFO L87 Difference]: Start difference. First operand 304 states and 889 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:52,735 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38
[2021-06-01 18:47:52,940 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43
[2021-06-01 18:47:53,123 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 49
[2021-06-01 18:47:53,550 WARN L205 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84
[2021-06-01 18:47:53,753 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60
[2021-06-01 18:47:54,089 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74
[2021-06-01 18:47:54,283 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57
[2021-06-01 18:47:54,657 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80
[2021-06-01 18:47:55,027 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77
[2021-06-01 18:47:55,324 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 61
[2021-06-01 18:47:55,540 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60
[2021-06-01 18:47:55,940 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81
[2021-06-01 18:47:56,275 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67
[2021-06-01 18:47:56,308 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:47:56,309 INFO L93 Difference]: Finished difference Result 561 states and 1556 transitions.
[2021-06-01 18:47:56,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:47:56,309 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:47:56,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:47:56,310 INFO L225 Difference]: With dead ends: 561
[2021-06-01 18:47:56,310 INFO L226 Difference]: Without dead ends: 502
[2021-06-01 18:47:56,310 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 4057.8ms TimeCoverageRelationStatistics Valid=208, Invalid=914, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:47:56,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states.
[2021-06-01 18:47:56,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 310.
[2021-06-01 18:47:56,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 2.9482200647249193) internal successors, (911), 309 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:56,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 911 transitions.
[2021-06-01 18:47:56,315 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 911 transitions. Word has length 20
[2021-06-01 18:47:56,315 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:47:56,315 INFO L482 AbstractCegarLoop]: Abstraction has 310 states and 911 transitions.
[2021-06-01 18:47:56,315 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:47:56,315 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 911 transitions.
[2021-06-01 18:47:56,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:47:56,315 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:47:56,315 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:47:56,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 39 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1661
[2021-06-01 18:47:56,516 INFO L430 AbstractCegarLoop]: === Iteration 161 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:47:56,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:47:56,516 INFO L82 PathProgramCache]: Analyzing trace with hash -2117153012, now seen corresponding path program 12 times
[2021-06-01 18:47:56,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:47:56,516 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884708360]
[2021-06-01 18:47:56,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:47:56,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:47:56,780 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:47:56,780 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:47:56,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884708360]
[2021-06-01 18:47:56,780 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884708360] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:47:56,780 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970532248]
[2021-06-01 18:47:56,780 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 40 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:47:56,815 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:47:56,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:47:56,816 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:47:56,816 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:47:57,372 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,372 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:57,379 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,385 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,386 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:57,387 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,393 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,393 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:57,395 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,400 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,400 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,401 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:47:57,401 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:47:57,408 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,413 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:57,414 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,818 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84
[2021-06-01 18:47:57,819 INFO L628 ElimStorePlain]: treesize reduction 586, result has 43.8 percent of original size
[2021-06-01 18:47:57,823 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:57,825 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,829 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:57,830 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:57,835 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:57,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:57,836 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,003 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 80
[2021-06-01 18:47:58,004 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:58,008 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,009 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:47:58,010 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,016 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,017 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:58,018 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,025 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,025 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:47:58,026 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,188 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:47:58,188 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:58,193 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,194 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:58,196 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,200 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,201 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:47:58,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:58,202 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,205 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:58,206 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:58,347 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2021-06-01 18:47:58,347 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:47:58,355 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:47:58,355 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:327
[2021-06-01 18:47:58,562 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100
[2021-06-01 18:47:59,373 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_260, v_prenex_250, v_prenex_252, v_prenex_254, array_6, v_prenex_256, v_prenex_258], 1=[array_0, v_prenex_251, v_prenex_253, v_prenex_255, v_prenex_257, v_prenex_259, v_prenex_249]}
[2021-06-01 18:47:59,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:59,384 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:59,394 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:47:59,403 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:47:59,413 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:59,438 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:47:59,448 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,936 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 105
[2021-06-01 18:47:59,937 INFO L628 ElimStorePlain]: treesize reduction 1590, result has 16.1 percent of original size
[2021-06-01 18:47:59,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:47:59,943 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:47:59,948 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:47:59,948 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,049 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2021-06-01 18:48:00,049 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,054 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:00,056 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,155 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:48:00,161 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,258 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,263 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:00,263 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:00,364 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:00,463 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:00,556 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:00,556 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:00,556 INFO L518 ElimStorePlain]: Eliminatee v_prenex_251 vanished before elimination
[2021-06-01 18:48:00,556 INFO L518 ElimStorePlain]: Eliminatee v_prenex_253 vanished before elimination
[2021-06-01 18:48:00,556 INFO L518 ElimStorePlain]: Eliminatee v_prenex_255 vanished before elimination
[2021-06-01 18:48:00,557 INFO L518 ElimStorePlain]: Eliminatee v_prenex_257 vanished before elimination
[2021-06-01 18:48:00,557 INFO L518 ElimStorePlain]: Eliminatee v_prenex_259 vanished before elimination
[2021-06-01 18:48:00,557 INFO L518 ElimStorePlain]: Eliminatee v_prenex_249 vanished before elimination
[2021-06-01 18:48:00,559 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:48:00,560 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:175
[2021-06-01 18:48:00,720 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:48:00,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:00,919 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970532248] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:00,919 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:00,920 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:00,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830071270]
[2021-06-01 18:48:00,920 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:00,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:00,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:00,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:00,920 INFO L87 Difference]: Start difference. First operand 310 states and 911 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:01,194 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84
[2021-06-01 18:48:01,498 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91
[2021-06-01 18:48:01,886 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 96
[2021-06-01 18:48:02,425 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 169
[2021-06-01 18:48:02,791 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 122
[2021-06-01 18:48:03,062 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108
[2021-06-01 18:48:03,437 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 125
[2021-06-01 18:48:03,766 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 109
[2021-06-01 18:48:04,154 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 129
[2021-06-01 18:48:04,386 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104
[2021-06-01 18:48:04,809 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132
[2021-06-01 18:48:05,060 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107
[2021-06-01 18:48:05,423 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 116
[2021-06-01 18:48:05,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:05,492 INFO L93 Difference]: Finished difference Result 598 states and 1665 transitions.
[2021-06-01 18:48:05,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:48:05,492 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:05,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:05,493 INFO L225 Difference]: With dead ends: 598
[2021-06-01 18:48:05,493 INFO L226 Difference]: Without dead ends: 526
[2021-06-01 18:48:05,493 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 5086.6ms TimeCoverageRelationStatistics Valid=211, Invalid=845, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:48:05,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 526 states.
[2021-06-01 18:48:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 526 to 310.
[2021-06-01 18:48:05,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 2.9482200647249193) internal successors, (911), 309 states have internal predecessors, (911), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:05,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 911 transitions.
[2021-06-01 18:48:05,497 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 911 transitions. Word has length 20
[2021-06-01 18:48:05,497 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:05,497 INFO L482 AbstractCegarLoop]: Abstraction has 310 states and 911 transitions.
[2021-06-01 18:48:05,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:05,497 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 911 transitions.
[2021-06-01 18:48:05,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:05,497 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:05,497 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:05,698 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 40 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1740
[2021-06-01 18:48:05,698 INFO L430 AbstractCegarLoop]: === Iteration 162 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:05,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:05,698 INFO L82 PathProgramCache]: Analyzing trace with hash -361470104, now seen corresponding path program 13 times
[2021-06-01 18:48:05,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:05,698 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502342057]
[2021-06-01 18:48:05,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:05,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:05,860 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:05,860 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:05,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502342057]
[2021-06-01 18:48:05,860 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502342057] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:05,860 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [954231297]
[2021-06-01 18:48:05,860 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 41 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:05,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:05,887 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:48:05,888 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:06,647 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:06,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:06,648 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,015 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 123
[2021-06-01 18:48:07,015 INFO L628 ElimStorePlain]: treesize reduction 225, result has 67.8 percent of original size
[2021-06-01 18:48:07,021 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:07,022 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,189 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2021-06-01 18:48:07,189 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:07,195 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:07,196 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,363 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 115
[2021-06-01 18:48:07,363 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:07,369 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:07,370 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,538 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2021-06-01 18:48:07,539 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:07,544 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,544 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:07,546 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,550 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:07,561 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,723 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 107
[2021-06-01 18:48:07,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:07,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:07,730 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,734 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:07,735 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,897 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2021-06-01 18:48:07,898 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:07,902 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,903 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:07,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:07,904 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:07,909 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:07,909 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,039 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2021-06-01 18:48:08,039 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:08,044 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:08,044 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:08,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:08,046 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,050 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:08,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:08,051 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,173 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:48:08,173 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:08,182 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:48:08,182 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 16 variables, input treesize:705, output treesize:311
[2021-06-01 18:48:08,374 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 94
[2021-06-01 18:48:08,557 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 79
[2021-06-01 18:48:08,929 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_285, array_6], 1=[array_0, v_prenex_284]}
[2021-06-01 18:48:08,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:08,934 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,937 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:08,938 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,942 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:08,942 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,946 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:08,946 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,950 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:08,950 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:08,953 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:08,954 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:09,072 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46
[2021-06-01 18:48:09,072 INFO L628 ElimStorePlain]: treesize reduction 259, result has 34.3 percent of original size
[2021-06-01 18:48:09,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:09,076 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:09,121 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:09,121 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:09,121 INFO L518 ElimStorePlain]: Eliminatee v_prenex_284 vanished before elimination
[2021-06-01 18:48:09,123 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:48:09,123 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:630, output treesize:105
[2021-06-01 18:48:09,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:09,250 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [954231297] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:09,250 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:09,250 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:09,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999462974]
[2021-06-01 18:48:09,251 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:09,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:09,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:09,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:09,251 INFO L87 Difference]: Start difference. First operand 310 states and 911 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:09,749 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 99
[2021-06-01 18:48:10,119 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 134
[2021-06-01 18:48:10,580 WARN L205 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 148
[2021-06-01 18:48:11,095 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 151
[2021-06-01 18:48:11,623 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 164
[2021-06-01 18:48:11,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:11,684 INFO L93 Difference]: Finished difference Result 555 states and 1571 transitions.
[2021-06-01 18:48:11,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:48:11,685 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:11,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:11,685 INFO L225 Difference]: With dead ends: 555
[2021-06-01 18:48:11,685 INFO L226 Difference]: Without dead ends: 515
[2021-06-01 18:48:11,686 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2910.7ms TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:48:11,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 515 states.
[2021-06-01 18:48:11,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 515 to 322.
[2021-06-01 18:48:11,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 2.94392523364486) internal successors, (945), 321 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:11,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 945 transitions.
[2021-06-01 18:48:11,689 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 945 transitions. Word has length 20
[2021-06-01 18:48:11,689 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:11,690 INFO L482 AbstractCegarLoop]: Abstraction has 322 states and 945 transitions.
[2021-06-01 18:48:11,690 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:11,690 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 945 transitions.
[2021-06-01 18:48:11,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:11,690 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:11,690 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:11,892 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2055,41 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:11,893 INFO L430 AbstractCegarLoop]: === Iteration 163 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:11,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:11,893 INFO L82 PathProgramCache]: Analyzing trace with hash -758387758, now seen corresponding path program 14 times
[2021-06-01 18:48:11,893 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:11,893 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343926305]
[2021-06-01 18:48:11,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:11,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:12,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:12,082 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:12,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343926305]
[2021-06-01 18:48:12,082 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343926305] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:12,082 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731316689]
[2021-06-01 18:48:12,082 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 42 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:12,118 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:48:12,119 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:12,119 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-06-01 18:48:12,120 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:12,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:12,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:12,715 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,716 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:12,717 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:12,723 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,723 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:12,727 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:12,733 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,733 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:12,735 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:12,741 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,741 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:12,742 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:12,748 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:12,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:12,749 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,061 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67
[2021-06-01 18:48:13,061 INFO L628 ElimStorePlain]: treesize reduction 456, result has 43.6 percent of original size
[2021-06-01 18:48:13,066 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,066 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:13,067 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:13,072 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,076 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:13,077 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,327 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63
[2021-06-01 18:48:13,328 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:48:13,332 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,332 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:13,333 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,337 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,338 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:48:13,339 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,343 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:13,343 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:13,344 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:13,543 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56
[2021-06-01 18:48:13,544 INFO L628 ElimStorePlain]: treesize reduction 27, result has 90.1 percent of original size
[2021-06-01 18:48:13,550 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:48:13,550 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:919, output treesize:233
[2021-06-01 18:48:13,830 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2021-06-01 18:48:14,140 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_296, v_prenex_298, array_6, v_prenex_300, v_prenex_302, v_prenex_304], 1=[array_0, v_prenex_295, v_prenex_297, v_prenex_299, v_prenex_301, v_prenex_303]}
[2021-06-01 18:48:14,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:48:14,149 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:14,158 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:48:14,167 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:14,176 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,189 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:14,190 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:14,199 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,666 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 91
[2021-06-01 18:48:14,667 INFO L628 ElimStorePlain]: treesize reduction 1475, result has 18.8 percent of original size
[2021-06-01 18:48:14,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:14,672 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,809 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:48:14,810 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:14,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:14,815 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:14,949 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:48:14,950 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:14,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:14,955 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:15,087 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:48:15,087 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:15,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:48:15,092 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:15,227 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:48:15,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:15,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:48:15,232 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:15,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:15,237 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:15,456 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62
[2021-06-01 18:48:15,456 INFO L628 ElimStorePlain]: treesize reduction 31, result has 89.3 percent of original size
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee v_prenex_295 vanished before elimination
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee v_prenex_297 vanished before elimination
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee v_prenex_299 vanished before elimination
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee v_prenex_301 vanished before elimination
[2021-06-01 18:48:15,457 INFO L518 ElimStorePlain]: Eliminatee v_prenex_303 vanished before elimination
[2021-06-01 18:48:15,460 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:48:15,460 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:2057, output treesize:222
[2021-06-01 18:48:15,715 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33
[2021-06-01 18:48:15,863 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:15,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731316689] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:15,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:15,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:15,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558554641]
[2021-06-01 18:48:15,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:15,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:15,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:15,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:15,864 INFO L87 Difference]: Start difference. First operand 322 states and 945 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:16,317 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67
[2021-06-01 18:48:16,686 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 116
[2021-06-01 18:48:17,227 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 122
[2021-06-01 18:48:17,384 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64
[2021-06-01 18:48:17,872 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 136
[2021-06-01 18:48:18,056 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64
[2021-06-01 18:48:18,624 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 144
[2021-06-01 18:48:18,822 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67
[2021-06-01 18:48:19,420 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 149
[2021-06-01 18:48:19,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:19,455 INFO L93 Difference]: Finished difference Result 671 states and 1864 transitions.
[2021-06-01 18:48:19,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:48:19,456 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:19,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:19,457 INFO L225 Difference]: With dead ends: 671
[2021-06-01 18:48:19,457 INFO L226 Difference]: Without dead ends: 614
[2021-06-01 18:48:19,457 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 4043.6ms TimeCoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930
[2021-06-01 18:48:19,458 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 614 states.
[2021-06-01 18:48:19,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 614 to 322.
[2021-06-01 18:48:19,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 322 states, 321 states have (on average 2.94392523364486) internal successors, (945), 321 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:19,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 322 states to 322 states and 945 transitions.
[2021-06-01 18:48:19,463 INFO L78 Accepts]: Start accepts. Automaton has 322 states and 945 transitions. Word has length 20
[2021-06-01 18:48:19,463 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:19,463 INFO L482 AbstractCegarLoop]: Abstraction has 322 states and 945 transitions.
[2021-06-01 18:48:19,463 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:19,463 INFO L276 IsEmpty]: Start isEmpty. Operand 322 states and 945 transitions.
[2021-06-01 18:48:19,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:19,464 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:19,464 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:19,685 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 42 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2245
[2021-06-01 18:48:19,685 INFO L430 AbstractCegarLoop]: === Iteration 164 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:19,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:19,685 INFO L82 PathProgramCache]: Analyzing trace with hash -678810648, now seen corresponding path program 15 times
[2021-06-01 18:48:19,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:19,685 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876735815]
[2021-06-01 18:48:19,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:19,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:20,060 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:20,060 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:20,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876735815]
[2021-06-01 18:48:20,060 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876735815] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:20,060 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1160244225]
[2021-06-01 18:48:20,060 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 43 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:20,087 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:48:20,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:20,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:48:20,088 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:20,928 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,928 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:20,929 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:20,935 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,935 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:20,936 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:20,942 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,942 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:20,943 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:20,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:20,950 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:20,955 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:20,956 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:20,961 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:20,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:20,962 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,354 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77
[2021-06-01 18:48:21,354 INFO L628 ElimStorePlain]: treesize reduction 546, result has 44.5 percent of original size
[2021-06-01 18:48:21,365 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,366 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:21,370 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:21,375 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,379 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:21,380 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,666 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69
[2021-06-01 18:48:21,666 INFO L628 ElimStorePlain]: treesize reduction 31, result has 92.0 percent of original size
[2021-06-01 18:48:21,670 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,671 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:21,672 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,676 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,677 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:21,677 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:21,682 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,817 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:48:21,817 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:21,821 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,822 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:21,823 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,827 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,827 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:21,827 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:21,828 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:21,833 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:21,960 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:48:21,960 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:21,966 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:48:21,967 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1129, output treesize:285
[2021-06-01 18:48:22,190 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77
[2021-06-01 18:48:22,436 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 74
[2021-06-01 18:48:22,640 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_330, array_6, v_prenex_332, v_prenex_322, v_prenex_337, v_prenex_326], 1=[v_prenex_329, array_3, v_prenex_331, v_prenex_321, v_prenex_333, v_prenex_325]}
[2021-06-01 18:48:22,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:22,649 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:22,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:22,658 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:22,666 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:48:22,669 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:22,913 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 73
[2021-06-01 18:48:22,913 INFO L628 ElimStorePlain]: treesize reduction 426, result has 32.5 percent of original size
[2021-06-01 18:48:22,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:22,918 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:22,990 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:22,994 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:22,995 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:23,065 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:23,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:23,070 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:23,139 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:23,139 INFO L518 ElimStorePlain]: Eliminatee v_prenex_337 vanished before elimination
[2021-06-01 18:48:23,142 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:23,143 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:23,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:23,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_329 vanished before elimination
[2021-06-01 18:48:23,211 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:48:23,211 INFO L518 ElimStorePlain]: Eliminatee v_prenex_331 vanished before elimination
[2021-06-01 18:48:23,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_321 vanished before elimination
[2021-06-01 18:48:23,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_333 vanished before elimination
[2021-06-01 18:48:23,212 INFO L518 ElimStorePlain]: Eliminatee v_prenex_325 vanished before elimination
[2021-06-01 18:48:23,214 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:48:23,214 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 18 variables, input treesize:729, output treesize:145
[2021-06-01 18:48:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:23,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1160244225] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:23,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:23,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:23,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450276988]
[2021-06-01 18:48:23,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:23,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:23,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:23,407 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:23,407 INFO L87 Difference]: Start difference. First operand 322 states and 945 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:23,939 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 107
[2021-06-01 18:48:24,283 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 113
[2021-06-01 18:48:24,853 WARN L205 SmtUtils]: Spent 507.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 171
[2021-06-01 18:48:25,350 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 154
[2021-06-01 18:48:25,585 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80
[2021-06-01 18:48:25,882 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87
[2021-06-01 18:48:25,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:25,932 INFO L93 Difference]: Finished difference Result 524 states and 1510 transitions.
[2021-06-01 18:48:25,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:48:25,932 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:25,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:25,933 INFO L225 Difference]: With dead ends: 524
[2021-06-01 18:48:25,933 INFO L226 Difference]: Without dead ends: 509
[2021-06-01 18:48:25,933 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 3323.2ms TimeCoverageRelationStatistics Valid=124, Invalid=578, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:48:25,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 509 states.
[2021-06-01 18:48:25,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 509 to 325.
[2021-06-01 18:48:25,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 2.941358024691358) internal successors, (953), 324 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:25,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 953 transitions.
[2021-06-01 18:48:25,938 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 953 transitions. Word has length 20
[2021-06-01 18:48:25,938 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:25,938 INFO L482 AbstractCegarLoop]: Abstraction has 325 states and 953 transitions.
[2021-06-01 18:48:25,938 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:25,939 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 953 transitions.
[2021-06-01 18:48:25,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:25,939 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:25,939 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:26,161 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2428,43 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:26,161 INFO L430 AbstractCegarLoop]: === Iteration 165 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:26,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:26,161 INFO L82 PathProgramCache]: Analyzing trace with hash -199525972, now seen corresponding path program 16 times
[2021-06-01 18:48:26,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:26,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195947774]
[2021-06-01 18:48:26,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:26,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:26,374 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:26,375 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:26,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195947774]
[2021-06-01 18:48:26,375 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195947774] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:26,375 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [970219575]
[2021-06-01 18:48:26,375 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 44 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:26,415 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:48:26,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:26,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:48:26,416 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:27,351 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,351 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:27,352 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,358 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,358 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:27,359 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,366 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,366 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:27,367 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,373 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,373 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:27,374 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,381 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,381 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:27,382 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,388 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:27,389 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,871 WARN L205 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83
[2021-06-01 18:48:27,872 INFO L628 ElimStorePlain]: treesize reduction 595, result has 45.6 percent of original size
[2021-06-01 18:48:27,877 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,877 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:27,878 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,883 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:27,883 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:27,888 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:27,888 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:27,889 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,069 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:48:28,070 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:28,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:28,075 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,080 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,080 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:28,081 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,086 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:28,087 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,259 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:48:28,260 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:28,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:28,266 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:28,271 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,276 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:28,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:28,277 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:28,579 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67
[2021-06-01 18:48:28,580 INFO L628 ElimStorePlain]: treesize reduction 34, result has 91.0 percent of original size
[2021-06-01 18:48:28,587 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:48:28,587 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:321
[2021-06-01 18:48:28,832 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84
[2021-06-01 18:48:28,994 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_361, v_prenex_372, v_prenex_363, v_prenex_353, array_6, v_prenex_365, v_prenex_355, v_prenex_367, v_prenex_357, v_prenex_359], 1=[array_3, v_prenex_360, v_prenex_362, v_prenex_352, v_prenex_364, v_prenex_354, v_prenex_366, v_prenex_356, v_prenex_368, v_prenex_358]}
[2021-06-01 18:48:29,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:29,005 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:29,402 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 100
[2021-06-01 18:48:29,403 INFO L628 ElimStorePlain]: treesize reduction 850, result has 27.9 percent of original size
[2021-06-01 18:48:29,403 INFO L518 ElimStorePlain]: Eliminatee v_prenex_372 vanished before elimination
[2021-06-01 18:48:29,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:29,409 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:29,534 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:48:29,535 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:29,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:29,540 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:29,663 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:48:29,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:29,664 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:48:29,664 INFO L518 ElimStorePlain]: Eliminatee v_prenex_365 vanished before elimination
[2021-06-01 18:48:29,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:29,669 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:29,789 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:48:29,789 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:29,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:29,794 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:29,911 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:48:29,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:29,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:29,916 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:30,029 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:48:30,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:30,029 INFO L518 ElimStorePlain]: Eliminatee v_prenex_359 vanished before elimination
[2021-06-01 18:48:30,029 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:48:30,029 INFO L518 ElimStorePlain]: Eliminatee v_prenex_360 vanished before elimination
[2021-06-01 18:48:30,029 INFO L518 ElimStorePlain]: Eliminatee v_prenex_362 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_352 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_364 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_354 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_366 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_356 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_368 vanished before elimination
[2021-06-01 18:48:30,030 INFO L518 ElimStorePlain]: Eliminatee v_prenex_358 vanished before elimination
[2021-06-01 18:48:30,033 INFO L550 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 20 dim-1 vars, End of recursive call: and 12 xjuncts.
[2021-06-01 18:48:30,033 INFO L247 ElimStorePlain]: Needed 7 recursive calls to eliminate 30 variables, input treesize:1186, output treesize:239
[2021-06-01 18:48:30,203 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36
[2021-06-01 18:48:30,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:30,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [970219575] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:30,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:30,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:30,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558334602]
[2021-06-01 18:48:30,372 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:30,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:30,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:30,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:30,373 INFO L87 Difference]: Start difference. First operand 325 states and 953 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:30,835 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 103
[2021-06-01 18:48:31,150 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 109
[2021-06-01 18:48:31,638 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 158
[2021-06-01 18:48:31,958 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80
[2021-06-01 18:48:32,285 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90
[2021-06-01 18:48:32,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:32,329 INFO L93 Difference]: Finished difference Result 545 states and 1547 transitions.
[2021-06-01 18:48:32,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:48:32,330 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:32,330 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:32,330 INFO L225 Difference]: With dead ends: 545
[2021-06-01 18:48:32,330 INFO L226 Difference]: Without dead ends: 530
[2021-06-01 18:48:32,331 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2644.3ms TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:48:32,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states.
[2021-06-01 18:48:32,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 325.
[2021-06-01 18:48:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 2.941358024691358) internal successors, (953), 324 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 953 transitions.
[2021-06-01 18:48:32,334 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 953 transitions. Word has length 20
[2021-06-01 18:48:32,335 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:32,335 INFO L482 AbstractCegarLoop]: Abstraction has 325 states and 953 transitions.
[2021-06-01 18:48:32,335 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 953 transitions.
[2021-06-01 18:48:32,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:32,335 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:32,335 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:32,535 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 44 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2575
[2021-06-01 18:48:32,536 INFO L430 AbstractCegarLoop]: === Iteration 166 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:32,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:32,536 INFO L82 PathProgramCache]: Analyzing trace with hash -1898246360, now seen corresponding path program 17 times
[2021-06-01 18:48:32,536 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:32,536 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425925727]
[2021-06-01 18:48:32,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:32,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:32,718 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:32,718 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425925727]
[2021-06-01 18:48:32,718 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425925727] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:32,719 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873054805]
[2021-06-01 18:48:32,719 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 45 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:32,745 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:48:32,746 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:32,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:48:32,747 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:32,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:48:32,957 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:32,961 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:32,965 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:32,969 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:48:32,973 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,976 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:32,976 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:32,980 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:32,984 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:32,988 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,991 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:32,992 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:32,996 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:32,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:33,000 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:33,004 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:33,008 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,011 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:33,011 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:33,015 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:48:33,019 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:33,023 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:33,143 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40
[2021-06-01 18:48:33,143 INFO L628 ElimStorePlain]: treesize reduction 113, result has 60.8 percent of original size
[2021-06-01 18:48:33,145 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:48:33,145 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 1 variables, input treesize:763, output treesize:175
[2021-06-01 18:48:33,511 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:48:33,709 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:33,709 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873054805] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:33,709 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:33,709 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:48:33,709 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117461214]
[2021-06-01 18:48:33,709 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:48:33,709 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:33,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:48:33,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:48:33,710 INFO L87 Difference]: Start difference. First operand 325 states and 953 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:34,036 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44
[2021-06-01 18:48:34,248 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49
[2021-06-01 18:48:34,665 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83
[2021-06-01 18:48:34,883 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59
[2021-06-01 18:48:35,113 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68
[2021-06-01 18:48:35,458 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74
[2021-06-01 18:48:35,710 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71
[2021-06-01 18:48:35,902 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55
[2021-06-01 18:48:36,277 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77
[2021-06-01 18:48:36,496 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61
[2021-06-01 18:48:36,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:36,531 INFO L93 Difference]: Finished difference Result 615 states and 1714 transitions.
[2021-06-01 18:48:36,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:48:36,531 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:36,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:36,532 INFO L225 Difference]: With dead ends: 615
[2021-06-01 18:48:36,532 INFO L226 Difference]: Without dead ends: 556
[2021-06-01 18:48:36,532 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 3158.0ms TimeCoverageRelationStatistics Valid=189, Invalid=933, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:48:36,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states.
[2021-06-01 18:48:36,536 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 328.
[2021-06-01 18:48:36,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 2.948012232415902) internal successors, (964), 327 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 964 transitions.
[2021-06-01 18:48:36,536 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 964 transitions. Word has length 20
[2021-06-01 18:48:36,536 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:36,536 INFO L482 AbstractCegarLoop]: Abstraction has 328 states and 964 transitions.
[2021-06-01 18:48:36,536 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:36,537 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 964 transitions.
[2021-06-01 18:48:36,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:36,537 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:36,537 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:36,737 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 45 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2721
[2021-06-01 18:48:36,738 INFO L430 AbstractCegarLoop]: === Iteration 167 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:36,738 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:36,738 INFO L82 PathProgramCache]: Analyzing trace with hash 335703830, now seen corresponding path program 18 times
[2021-06-01 18:48:36,738 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:36,738 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919632849]
[2021-06-01 18:48:36,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:36,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:36,989 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:36,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919632849]
[2021-06-01 18:48:36,989 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919632849] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:36,989 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464182943]
[2021-06-01 18:48:36,989 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 46 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:37,016 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:48:37,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:37,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:48:37,017 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:37,659 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,660 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:37,661 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:37,666 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,667 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:37,668 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:37,673 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,674 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:37,675 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:37,680 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,681 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:37,682 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:37,687 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,687 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:37,688 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:37,695 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:37,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:37,696 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,111 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84
[2021-06-01 18:48:38,111 INFO L628 ElimStorePlain]: treesize reduction 624, result has 42.6 percent of original size
[2021-06-01 18:48:38,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:48:38,118 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,122 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,123 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:38,124 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,128 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:38,129 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,443 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77
[2021-06-01 18:48:38,444 INFO L628 ElimStorePlain]: treesize reduction 24, result has 94.2 percent of original size
[2021-06-01 18:48:38,448 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,449 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,449 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:38,450 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,454 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,454 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:38,455 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,459 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:38,460 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,738 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73
[2021-06-01 18:48:38,739 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:48:38,743 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,744 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:38,745 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,749 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,749 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:38,750 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,754 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:38,754 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:38,755 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:38,886 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2021-06-01 18:48:38,887 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:38,895 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:48:38,895 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:327
[2021-06-01 18:48:39,109 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100
[2021-06-01 18:48:39,775 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_393, v_prenex_395, v_prenex_397, array_6, v_prenex_399, v_prenex_401, v_prenex_403], 1=[array_0, v_prenex_392, v_prenex_394, v_prenex_396, v_prenex_398, v_prenex_400, v_prenex_402]}
[2021-06-01 18:48:39,785 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:39,786 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:39,795 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:39,795 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:39,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:39,805 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:39,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:39,821 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:39,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:39,832 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:39,842 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:39,842 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,323 WARN L205 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 105
[2021-06-01 18:48:40,323 INFO L628 ElimStorePlain]: treesize reduction 1557, result has 16.4 percent of original size
[2021-06-01 18:48:40,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:40,330 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,451 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:48:40,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:40,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:48:40,457 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,576 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:48:40,576 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:40,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:48:40,582 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:40,587 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,791 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85
[2021-06-01 18:48:40,792 INFO L628 ElimStorePlain]: treesize reduction 33, result has 88.0 percent of original size
[2021-06-01 18:48:40,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:40,797 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,892 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:40,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:40,897 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:40,989 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:40,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:40,994 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:41,085 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_392 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_394 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_396 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_398 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_400 vanished before elimination
[2021-06-01 18:48:41,085 INFO L518 ElimStorePlain]: Eliminatee v_prenex_402 vanished before elimination
[2021-06-01 18:48:41,088 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:48:41,089 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:175
[2021-06-01 18:48:41,252 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:48:41,410 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:48:41,486 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:41,487 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464182943] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:41,487 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:41,487 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:41,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1639884101]
[2021-06-01 18:48:41,487 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:41,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:41,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:41,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:41,487 INFO L87 Difference]: Start difference. First operand 328 states and 964 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:41,952 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 107
[2021-06-01 18:48:42,264 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 111
[2021-06-01 18:48:42,632 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145
[2021-06-01 18:48:42,926 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78
[2021-06-01 18:48:43,235 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84
[2021-06-01 18:48:43,453 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68
[2021-06-01 18:48:43,739 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85
[2021-06-01 18:48:44,090 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 94
[2021-06-01 18:48:44,345 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75
[2021-06-01 18:48:44,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:44,384 INFO L93 Difference]: Finished difference Result 607 states and 1698 transitions.
[2021-06-01 18:48:44,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:48:44,385 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:44,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:44,385 INFO L225 Difference]: With dead ends: 607
[2021-06-01 18:48:44,386 INFO L226 Difference]: Without dead ends: 577
[2021-06-01 18:48:44,386 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 3547.4ms TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:48:44,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states.
[2021-06-01 18:48:44,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 328.
[2021-06-01 18:48:44,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 2.948012232415902) internal successors, (964), 327 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:44,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 964 transitions.
[2021-06-01 18:48:44,390 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 964 transitions. Word has length 20
[2021-06-01 18:48:44,390 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:44,390 INFO L482 AbstractCegarLoop]: Abstraction has 328 states and 964 transitions.
[2021-06-01 18:48:44,390 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:44,390 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 964 transitions.
[2021-06-01 18:48:44,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:44,390 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:44,390 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:44,591 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 46 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2782
[2021-06-01 18:48:44,591 INFO L430 AbstractCegarLoop]: === Iteration 168 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:44,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:44,591 INFO L82 PathProgramCache]: Analyzing trace with hash -1363016558, now seen corresponding path program 19 times
[2021-06-01 18:48:44,591 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:44,591 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [462457749]
[2021-06-01 18:48:44,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:44,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:44,762 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:44,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [462457749]
[2021-06-01 18:48:44,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [462457749] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:44,762 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098616886]
[2021-06-01 18:48:44,762 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 47 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:44,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:44,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:48:44,808 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:45,253 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 63
[2021-06-01 18:48:45,781 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:45,781 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:45,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:45,783 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:45,790 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:45,790 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:45,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:45,792 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:45,799 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:45,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:45,800 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:46,236 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 131
[2021-06-01 18:48:46,236 INFO L628 ElimStorePlain]: treesize reduction 216, result has 69.9 percent of original size
[2021-06-01 18:48:46,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:46,244 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:46,446 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 127
[2021-06-01 18:48:46,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:46,453 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:46,454 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:46,648 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 123
[2021-06-01 18:48:46,649 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:46,655 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,655 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:46,656 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:46,846 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 119
[2021-06-01 18:48:46,846 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:46,852 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,852 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:46,853 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:46,859 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:46,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:46,859 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,044 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 115
[2021-06-01 18:48:47,045 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:47,050 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:47,052 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,236 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 111
[2021-06-01 18:48:47,236 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:47,241 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,242 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:47,243 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,247 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:47,248 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,403 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:48:47,403 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:47,408 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,409 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:47,409 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,414 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:47,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:47,415 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:47,568 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2021-06-01 18:48:47,568 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:47,576 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:48:47,577 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 16 variables, input treesize:801, output treesize:361
[2021-06-01 18:48:47,820 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 102
[2021-06-01 18:48:48,060 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_437, v_prenex_427, v_prenex_429, array_6, v_prenex_431, v_prenex_433, v_prenex_435], 1=[v_prenex_426, v_prenex_428, array_0, v_prenex_430, v_prenex_432, v_prenex_434, v_prenex_436]}
[2021-06-01 18:48:48,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:48,070 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,079 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:48,080 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,088 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:48,089 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,097 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:48,097 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,106 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:48,106 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,116 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:48,117 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,572 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 105
[2021-06-01 18:48:48,572 INFO L628 ElimStorePlain]: treesize reduction 1482, result has 17.1 percent of original size
[2021-06-01 18:48:48,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:48,579 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,700 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:48:48,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:48,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:48,709 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,829 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:48:48,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:48,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:48:48,835 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:48,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:48,841 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:49,048 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86
[2021-06-01 18:48:49,049 INFO L628 ElimStorePlain]: treesize reduction 33, result has 88.0 percent of original size
[2021-06-01 18:48:49,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:48:49,054 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:49,150 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:49,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:49,155 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:49,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:49,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:49,253 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:49,344 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_426 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_428 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_430 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_432 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_434 vanished before elimination
[2021-06-01 18:48:49,345 INFO L518 ElimStorePlain]: Eliminatee v_prenex_436 vanished before elimination
[2021-06-01 18:48:49,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:48:49,349 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:175
[2021-06-01 18:48:49,510 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:48:49,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:49,719 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098616886] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:49,719 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:49,719 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:49,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465810888]
[2021-06-01 18:48:49,719 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:49,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:49,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:49,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:49,720 INFO L87 Difference]: Start difference. First operand 328 states and 964 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:50,194 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 107
[2021-06-01 18:48:50,514 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 115
[2021-06-01 18:48:50,907 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 147
[2021-06-01 18:48:51,184 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76
[2021-06-01 18:48:51,462 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68
[2021-06-01 18:48:51,806 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88
[2021-06-01 18:48:52,115 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80
[2021-06-01 18:48:52,471 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 91
[2021-06-01 18:48:52,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:52,503 INFO L93 Difference]: Finished difference Result 607 states and 1686 transitions.
[2021-06-01 18:48:52,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:48:52,503 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:52,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:52,504 INFO L225 Difference]: With dead ends: 607
[2021-06-01 18:48:52,504 INFO L226 Difference]: Without dead ends: 563
[2021-06-01 18:48:52,504 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 3452.4ms TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:48:52,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 563 states.
[2021-06-01 18:48:52,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 563 to 331.
[2021-06-01 18:48:52,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 331 states, 330 states have (on average 2.9545454545454546) internal successors, (975), 330 states have internal predecessors, (975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:52,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 975 transitions.
[2021-06-01 18:48:52,509 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 975 transitions. Word has length 20
[2021-06-01 18:48:52,509 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:52,509 INFO L482 AbstractCegarLoop]: Abstraction has 331 states and 975 transitions.
[2021-06-01 18:48:52,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:52,509 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 975 transitions.
[2021-06-01 18:48:52,509 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:52,509 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:52,509 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:52,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 47 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3033
[2021-06-01 18:48:52,710 INFO L430 AbstractCegarLoop]: === Iteration 169 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:52,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:52,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1536264250, now seen corresponding path program 20 times
[2021-06-01 18:48:52,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:52,710 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350240752]
[2021-06-01 18:48:52,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:52,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:52,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:52,953 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:52,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350240752]
[2021-06-01 18:48:52,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350240752] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:52,953 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [575824544]
[2021-06-01 18:48:52,953 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 48 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:52,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:48:52,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:52,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:48:52,993 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:48:53,871 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,871 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:53,872 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:53,878 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,878 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:48:53,880 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:53,885 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,886 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:53,887 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:53,893 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,893 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:53,894 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:53,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,901 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:53,902 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:53,907 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:53,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:53,908 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,369 WARN L205 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87
[2021-06-01 18:48:54,370 INFO L628 ElimStorePlain]: treesize reduction 624, result has 46.0 percent of original size
[2021-06-01 18:48:54,375 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,375 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:54,376 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,381 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,381 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,381 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:54,382 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,386 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:54,387 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,587 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-06-01 18:48:54,587 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:54,592 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,593 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:48:54,594 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,598 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,599 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:48:54,600 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:54,605 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,972 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79
[2021-06-01 18:48:54,973 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.8 percent of original size
[2021-06-01 18:48:54,977 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,978 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:48:54,979 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,983 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:54,983 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:54,987 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:48:54,988 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:48:54,989 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,145 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 72
[2021-06-01 18:48:55,145 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:55,154 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:48:55,154 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1273, output treesize:375
[2021-06-01 18:48:55,393 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 103
[2021-06-01 18:48:55,615 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88
[2021-06-01 18:48:55,853 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_459, v_prenex_461, array_6, v_prenex_457], 1=[array_0, v_prenex_460, v_prenex_456, v_prenex_458]}
[2021-06-01 18:48:55,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:55,859 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:48:55,866 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,871 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:55,872 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:48:55,878 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,883 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:55,883 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:55,888 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:48:55,889 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:56,103 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71
[2021-06-01 18:48:56,104 INFO L628 ElimStorePlain]: treesize reduction 768, result has 18.6 percent of original size
[2021-06-01 18:48:56,108 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:48:56,109 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:56,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:56,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:56,171 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:56,228 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:56,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:48:56,232 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:48:56,292 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:48:56,292 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:48:56,292 INFO L518 ElimStorePlain]: Eliminatee v_prenex_460 vanished before elimination
[2021-06-01 18:48:56,292 INFO L518 ElimStorePlain]: Eliminatee v_prenex_456 vanished before elimination
[2021-06-01 18:48:56,292 INFO L518 ElimStorePlain]: Eliminatee v_prenex_458 vanished before elimination
[2021-06-01 18:48:56,294 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:48:56,294 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:1167, output treesize:122
[2021-06-01 18:48:56,485 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:56,485 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [575824544] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:56,486 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:48:56,486 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:48:56,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554229822]
[2021-06-01 18:48:56,486 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:48:56,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:48:56,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:48:56,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:48:56,486 INFO L87 Difference]: Start difference. First operand 331 states and 975 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:56,947 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97
[2021-06-01 18:48:57,259 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 101
[2021-06-01 18:48:57,683 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 145
[2021-06-01 18:48:58,520 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 170
[2021-06-01 18:48:58,759 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77
[2021-06-01 18:48:58,997 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79
[2021-06-01 18:48:59,191 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67
[2021-06-01 18:48:59,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:48:59,210 INFO L93 Difference]: Finished difference Result 541 states and 1536 transitions.
[2021-06-01 18:48:59,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:48:59,210 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:48:59,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:48:59,211 INFO L225 Difference]: With dead ends: 541
[2021-06-01 18:48:59,211 INFO L226 Difference]: Without dead ends: 490
[2021-06-01 18:48:59,211 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 3420.8ms TimeCoverageRelationStatistics Valid=117, Invalid=639, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:48:59,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states.
[2021-06-01 18:48:59,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 328.
[2021-06-01 18:48:59,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 328 states, 327 states have (on average 2.948012232415902) internal successors, (964), 327 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:59,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 964 transitions.
[2021-06-01 18:48:59,227 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 964 transitions. Word has length 20
[2021-06-01 18:48:59,227 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:48:59,227 INFO L482 AbstractCegarLoop]: Abstraction has 328 states and 964 transitions.
[2021-06-01 18:48:59,228 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:48:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 964 transitions.
[2021-06-01 18:48:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:48:59,228 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:48:59,228 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:48:59,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3205,48 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:59,445 INFO L430 AbstractCegarLoop]: === Iteration 170 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:48:59,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:48:59,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1281321126, now seen corresponding path program 21 times
[2021-06-01 18:48:59,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:48:59,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053543853]
[2021-06-01 18:48:59,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:48:59,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:48:59,627 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:48:59,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:48:59,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053543853]
[2021-06-01 18:48:59,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053543853] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:48:59,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [239246511]
[2021-06-01 18:48:59,630 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 49 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:48:59,664 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:48:59,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:48:59,665 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:48:59,666 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:00,128 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,129 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:00,130 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,135 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,135 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:00,136 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,140 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:00,141 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,146 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,146 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,146 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:00,147 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,151 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,152 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:00,153 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:00,158 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,445 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68
[2021-06-01 18:49:00,445 INFO L628 ElimStorePlain]: treesize reduction 414, result has 43.8 percent of original size
[2021-06-01 18:49:00,449 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,450 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:00,451 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,454 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,455 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:00,455 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,459 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,459 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:00,460 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,580 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:49:00,580 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:00,584 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,585 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:00,586 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,589 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,590 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:49:00,591 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,594 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:00,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:00,597 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:00,805 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60
[2021-06-01 18:49:00,805 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:49:00,812 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:49:00,812 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:251
[2021-06-01 18:49:01,004 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96
[2021-06-01 18:49:01,358 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 100
[2021-06-01 18:49:01,609 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85
[2021-06-01 18:49:01,942 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_482, v_prenex_484, array_6, v_prenex_486], 1=[array_0, v_prenex_481, v_prenex_483, v_prenex_485]}
[2021-06-01 18:49:01,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:01,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:01,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:01,956 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:01,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:01,962 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:01,967 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:01,968 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:01,973 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:01,974 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:01,979 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:01,979 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:02,214 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73
[2021-06-01 18:49:02,215 INFO L628 ElimStorePlain]: treesize reduction 719, result has 21.8 percent of original size
[2021-06-01 18:49:02,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:02,219 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:02,289 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:02,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:49:02,293 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:02,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:02,297 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:02,412 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59
[2021-06-01 18:49:02,412 INFO L628 ElimStorePlain]: treesize reduction 24, result has 86.5 percent of original size
[2021-06-01 18:49:02,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:02,416 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:02,470 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:02,470 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:02,470 INFO L518 ElimStorePlain]: Eliminatee v_prenex_481 vanished before elimination
[2021-06-01 18:49:02,470 INFO L518 ElimStorePlain]: Eliminatee v_prenex_483 vanished before elimination
[2021-06-01 18:49:02,470 INFO L518 ElimStorePlain]: Eliminatee v_prenex_485 vanished before elimination
[2021-06-01 18:49:02,472 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:49:02,472 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:1125, output treesize:122
[2021-06-01 18:49:02,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:02,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [239246511] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:02,659 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:02,659 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:02,659 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415179847]
[2021-06-01 18:49:02,659 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:02,659 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:02,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:02,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:02,660 INFO L87 Difference]: Start difference. First operand 328 states and 964 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:03,239 WARN L205 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 123
[2021-06-01 18:49:03,827 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 182
[2021-06-01 18:49:04,744 WARN L205 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 246 DAG size of output: 221
[2021-06-01 18:49:05,515 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 207
[2021-06-01 18:49:06,400 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 264 DAG size of output: 239
[2021-06-01 18:49:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:06,473 INFO L93 Difference]: Finished difference Result 682 states and 1908 transitions.
[2021-06-01 18:49:06,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:49:06,473 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:06,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:06,474 INFO L225 Difference]: With dead ends: 682
[2021-06-01 18:49:06,474 INFO L226 Difference]: Without dead ends: 642
[2021-06-01 18:49:06,474 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4510.7ms TimeCoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:49:06,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states.
[2021-06-01 18:49:06,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 335.
[2021-06-01 18:49:06,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 2.9550898203592815) internal successors, (987), 334 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:06,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 987 transitions.
[2021-06-01 18:49:06,481 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 987 transitions. Word has length 20
[2021-06-01 18:49:06,481 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:06,481 INFO L482 AbstractCegarLoop]: Abstraction has 335 states and 987 transitions.
[2021-06-01 18:49:06,481 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:06,481 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 987 transitions.
[2021-06-01 18:49:06,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:06,481 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:06,481 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:06,688 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 49 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3397
[2021-06-01 18:49:06,689 INFO L430 AbstractCegarLoop]: === Iteration 171 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:06,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:06,689 INFO L82 PathProgramCache]: Analyzing trace with hash 884403472, now seen corresponding path program 22 times
[2021-06-01 18:49:06,689 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:06,689 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153799968]
[2021-06-01 18:49:06,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:06,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:06,936 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:06,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:06,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153799968]
[2021-06-01 18:49:06,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153799968] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:06,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855828339]
[2021-06-01 18:49:06,936 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 50 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:06,963 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:49:06,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:49:06,963 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:49:06,965 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:07,447 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:07,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:07,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:07,727 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102
[2021-06-01 18:49:07,727 INFO L628 ElimStorePlain]: treesize reduction 200, result has 63.9 percent of original size
[2021-06-01 18:49:07,732 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:07,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:07,733 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:07,862 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2021-06-01 18:49:07,862 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:07,867 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:07,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:07,868 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:07,995 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:49:07,995 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:08,000 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,000 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:08,001 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,005 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:08,006 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,106 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:08,110 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,111 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:08,112 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:08,117 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:08,215 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,215 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:08,216 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,220 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:08,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:08,221 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:08,311 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:08,316 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:49:08,316 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:561, output treesize:218
[2021-06-01 18:49:08,493 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88
[2021-06-01 18:49:08,758 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 92
[2021-06-01 18:49:09,156 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_506, v_prenex_508, array_6, v_prenex_510], 1=[v_prenex_505, array_0, v_prenex_507, v_prenex_509]}
[2021-06-01 18:49:09,162 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:09,163 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:09,170 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:09,176 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:09,182 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts.
[2021-06-01 18:49:09,189 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:09,190 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:09,196 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,452 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 68
[2021-06-01 18:49:09,452 INFO L628 ElimStorePlain]: treesize reduction 842, result has 18.9 percent of original size
[2021-06-01 18:49:09,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:09,457 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:09,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:09,536 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:09,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:09,612 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:09,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:09,682 INFO L518 ElimStorePlain]: Eliminatee v_prenex_505 vanished before elimination
[2021-06-01 18:49:09,682 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:09,682 INFO L518 ElimStorePlain]: Eliminatee v_prenex_507 vanished before elimination
[2021-06-01 18:49:09,682 INFO L518 ElimStorePlain]: Eliminatee v_prenex_509 vanished before elimination
[2021-06-01 18:49:09,684 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:49:09,684 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:1193, output treesize:143
[2021-06-01 18:49:09,828 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35
[2021-06-01 18:49:10,012 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:10,012 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855828339] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:10,012 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:10,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:10,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104705626]
[2021-06-01 18:49:10,013 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:10,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:10,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:10,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:10,013 INFO L87 Difference]: Start difference. First operand 335 states and 987 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:10,653 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129
[2021-06-01 18:49:11,254 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 174
[2021-06-01 18:49:11,943 WARN L205 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 181
[2021-06-01 18:49:12,655 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 195
[2021-06-01 18:49:13,490 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 205
[2021-06-01 18:49:13,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:13,684 INFO L93 Difference]: Finished difference Result 685 states and 1942 transitions.
[2021-06-01 18:49:13,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:49:13,684 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:13,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:13,685 INFO L225 Difference]: With dead ends: 685
[2021-06-01 18:49:13,685 INFO L226 Difference]: Without dead ends: 670
[2021-06-01 18:49:13,685 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4207.7ms TimeCoverageRelationStatistics Valid=121, Invalid=581, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:49:13,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states.
[2021-06-01 18:49:13,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 335.
[2021-06-01 18:49:13,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 335 states, 334 states have (on average 2.9550898203592815) internal successors, (987), 334 states have internal predecessors, (987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:13,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 987 transitions.
[2021-06-01 18:49:13,693 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 987 transitions. Word has length 20
[2021-06-01 18:49:13,693 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:13,693 INFO L482 AbstractCegarLoop]: Abstraction has 335 states and 987 transitions.
[2021-06-01 18:49:13,693 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:13,693 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 987 transitions.
[2021-06-01 18:49:13,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:13,694 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:13,694 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:13,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3533,50 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:13,916 INFO L430 AbstractCegarLoop]: === Iteration 172 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:13,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:13,916 INFO L82 PathProgramCache]: Analyzing trace with hash -814316916, now seen corresponding path program 23 times
[2021-06-01 18:49:13,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:13,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448723856]
[2021-06-01 18:49:13,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:13,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:14,141 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:14,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:14,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448723856]
[2021-06-01 18:49:14,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448723856] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:14,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [102995412]
[2021-06-01 18:49:14,142 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 51 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:14,167 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:49:14,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:49:14,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:49:14,169 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:14,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,341 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,346 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:49:14,350 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:14,355 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,360 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,364 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:14,364 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:49:14,370 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:49:14,375 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,379 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:49:14,384 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:14,389 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,394 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,398 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,403 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,407 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:49:14,412 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,428 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:49:14,432 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:49:14,437 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:49:14,442 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:49:14,446 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,450 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:49:14,455 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,458 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:49:14,459 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:49:14,463 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,468 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:49:14,472 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,476 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:49:14,481 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,485 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:14,489 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,493 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:14,493 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,498 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,501 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:49:14,502 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,505 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:14,506 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:14,510 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:14,672 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38
[2021-06-01 18:49:14,672 INFO L628 ElimStorePlain]: treesize reduction 380, result has 32.9 percent of original size
[2021-06-01 18:49:14,674 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:49:14,674 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1873, output treesize:186
[2021-06-01 18:49:14,993 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40
[2021-06-01 18:49:15,279 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36
[2021-06-01 18:49:15,493 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:15,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [102995412] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:15,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:15,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:49:15,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142949937]
[2021-06-01 18:49:15,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:49:15,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:15,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:49:15,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=338, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:49:15,494 INFO L87 Difference]: Start difference. First operand 335 states and 987 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:16,080 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61
[2021-06-01 18:49:16,613 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 81
[2021-06-01 18:49:16,778 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50
[2021-06-01 18:49:17,019 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60
[2021-06-01 18:49:17,536 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 89
[2021-06-01 18:49:17,835 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77
[2021-06-01 18:49:18,618 WARN L205 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 110
[2021-06-01 18:49:18,925 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73
[2021-06-01 18:49:19,721 WARN L205 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 113
[2021-06-01 18:49:20,344 WARN L205 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 92
[2021-06-01 18:49:21,204 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 119
[2021-06-01 18:49:21,545 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80
[2021-06-01 18:49:22,274 WARN L205 SmtUtils]: Spent 678.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 104
[2021-06-01 18:49:23,073 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 110
[2021-06-01 18:49:23,415 WARN L205 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83
[2021-06-01 18:49:23,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:23,465 INFO L93 Difference]: Finished difference Result 959 states and 2587 transitions.
[2021-06-01 18:49:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2021-06-01 18:49:23,465 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:23,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:23,466 INFO L225 Difference]: With dead ends: 959
[2021-06-01 18:49:23,466 INFO L226 Difference]: Without dead ends: 863
[2021-06-01 18:49:23,467 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 8464.1ms TimeCoverageRelationStatistics Valid=268, Invalid=1064, Unknown=0, NotChecked=0, Total=1332
[2021-06-01 18:49:23,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states.
[2021-06-01 18:49:23,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 355.
[2021-06-01 18:49:23,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 355 states, 354 states have (on average 3.0084745762711864) internal successors, (1065), 354 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:23,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 355 states to 355 states and 1065 transitions.
[2021-06-01 18:49:23,472 INFO L78 Accepts]: Start accepts. Automaton has 355 states and 1065 transitions. Word has length 20
[2021-06-01 18:49:23,472 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:23,472 INFO L482 AbstractCegarLoop]: Abstraction has 355 states and 1065 transitions.
[2021-06-01 18:49:23,472 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:23,472 INFO L276 IsEmpty]: Start isEmpty. Operand 355 states and 1065 transitions.
[2021-06-01 18:49:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:23,473 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:23,473 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:23,673 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 51 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3690
[2021-06-01 18:49:23,674 INFO L430 AbstractCegarLoop]: === Iteration 173 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:23,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:23,674 INFO L82 PathProgramCache]: Analyzing trace with hash -809196446, now seen corresponding path program 24 times
[2021-06-01 18:49:23,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:23,674 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033648963]
[2021-06-01 18:49:23,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:23,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:23,859 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:23,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033648963]
[2021-06-01 18:49:23,859 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1033648963] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:23,859 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [567061854]
[2021-06-01 18:49:23,860 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 52 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:23,893 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:49:23,893 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:49:23,894 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:49:23,895 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:24,454 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,454 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:24,455 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,460 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,460 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:24,461 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,465 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,465 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:24,466 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,471 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,471 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:24,472 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,476 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,477 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,477 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:24,477 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,481 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:24,482 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,800 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69
[2021-06-01 18:49:24,800 INFO L628 ElimStorePlain]: treesize reduction 472, result has 43.7 percent of original size
[2021-06-01 18:49:24,804 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,804 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,805 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:24,806 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,809 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:24,810 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,813 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:24,814 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,930 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 62
[2021-06-01 18:49:24,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:24,934 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,934 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:49:24,936 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,939 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,940 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:24,941 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:24,944 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:24,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:24,952 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:25,153 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58
[2021-06-01 18:49:25,153 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:49:25,159 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:49:25,159 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:241
[2021-06-01 18:49:25,514 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 90
[2021-06-01 18:49:25,892 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_526, v_prenex_528, array_6, v_prenex_530, v_prenex_522, v_prenex_524], 1=[v_prenex_525, v_prenex_527, array_0, v_prenex_529, v_prenex_521, v_prenex_523]}
[2021-06-01 18:49:25,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:25,901 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:25,908 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:25,908 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:25,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:25,916 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:25,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:25,924 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts.
[2021-06-01 18:49:25,932 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:25,933 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:25,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:25,940 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,325 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 93
[2021-06-01 18:49:26,325 INFO L628 ElimStorePlain]: treesize reduction 1437, result has 15.4 percent of original size
[2021-06-01 18:49:26,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:26,331 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:26,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:49:26,435 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:26,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:26,537 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,630 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:26,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:26,635 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:26,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:26,736 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:26,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee v_prenex_525 vanished before elimination
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee v_prenex_527 vanished before elimination
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee v_prenex_529 vanished before elimination
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee v_prenex_521 vanished before elimination
[2021-06-01 18:49:26,823 INFO L518 ElimStorePlain]: Eliminatee v_prenex_523 vanished before elimination
[2021-06-01 18:49:26,825 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:49:26,825 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1851, output treesize:168
[2021-06-01 18:49:26,982 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34
[2021-06-01 18:49:27,216 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:27,217 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [567061854] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:27,217 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:27,217 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:27,217 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046523769]
[2021-06-01 18:49:27,217 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:27,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:27,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:27,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:27,217 INFO L87 Difference]: Start difference. First operand 355 states and 1065 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:27,769 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 118
[2021-06-01 18:49:28,490 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 139
[2021-06-01 18:49:29,091 WARN L205 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 142
[2021-06-01 18:49:29,888 WARN L205 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 152
[2021-06-01 18:49:30,739 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 157
[2021-06-01 18:49:31,512 WARN L205 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 150
[2021-06-01 18:49:32,369 WARN L205 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 160
[2021-06-01 18:49:33,299 WARN L205 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 165
[2021-06-01 18:49:34,145 WARN L205 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 157
[2021-06-01 18:49:34,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:34,189 INFO L93 Difference]: Finished difference Result 711 states and 1995 transitions.
[2021-06-01 18:49:34,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:49:34,189 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:34,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:34,190 INFO L225 Difference]: With dead ends: 711
[2021-06-01 18:49:34,190 INFO L226 Difference]: Without dead ends: 681
[2021-06-01 18:49:34,190 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 7561.4ms TimeCoverageRelationStatistics Valid=180, Invalid=690, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:49:34,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states.
[2021-06-01 18:49:34,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 359.
[2021-06-01 18:49:34,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 359 states, 358 states have (on average 3.0195530726256985) internal successors, (1081), 358 states have internal predecessors, (1081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:34,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 359 states to 359 states and 1081 transitions.
[2021-06-01 18:49:34,195 INFO L78 Accepts]: Start accepts. Automaton has 359 states and 1081 transitions. Word has length 20
[2021-06-01 18:49:34,195 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:34,195 INFO L482 AbstractCegarLoop]: Abstraction has 359 states and 1081 transitions.
[2021-06-01 18:49:34,195 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:34,195 INFO L276 IsEmpty]: Start isEmpty. Operand 359 states and 1081 transitions.
[2021-06-01 18:49:34,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:34,196 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:34,196 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:34,396 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 52 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3734
[2021-06-01 18:49:34,396 INFO L430 AbstractCegarLoop]: === Iteration 174 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:34,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:34,396 INFO L82 PathProgramCache]: Analyzing trace with hash 1859986214, now seen corresponding path program 25 times
[2021-06-01 18:49:34,397 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:34,397 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080934717]
[2021-06-01 18:49:34,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:34,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:34,567 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:34,568 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:34,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080934717]
[2021-06-01 18:49:34,568 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080934717] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:34,568 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [819985417]
[2021-06-01 18:49:34,568 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 53 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:34,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:34,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:49:34,595 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:35,075 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,076 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:35,077 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,081 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,082 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:35,082 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,087 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,087 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:35,089 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,093 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,094 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:35,095 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,099 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,099 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,100 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:35,100 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,105 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:35,106 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,422 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71
[2021-06-01 18:49:35,422 INFO L628 ElimStorePlain]: treesize reduction 401, result has 48.4 percent of original size
[2021-06-01 18:49:35,426 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,426 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:35,428 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,431 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,432 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,432 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:35,432 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,436 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:35,437 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,577 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2021-06-01 18:49:35,577 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:35,581 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,582 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:35,583 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,586 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,587 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:35,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:49:35,588 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,591 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:49:35,592 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:35,699 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 60
[2021-06-01 18:49:35,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:35,706 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:49:35,706 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:259
[2021-06-01 18:49:35,894 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98
[2021-06-01 18:49:36,116 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 98
[2021-06-01 18:49:36,569 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_548, v_prenex_550, array_6, v_prenex_542, v_prenex_544, v_prenex_546], 1=[v_prenex_547, v_prenex_549, array_0, v_prenex_541, v_prenex_543, v_prenex_545]}
[2021-06-01 18:49:36,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:36,581 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:36,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:36,591 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:36,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:36,599 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:36,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:36,608 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:36,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:49:36,616 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:36,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:36,624 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,080 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 103
[2021-06-01 18:49:37,080 INFO L628 ElimStorePlain]: treesize reduction 1445, result has 17.4 percent of original size
[2021-06-01 18:49:37,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:37,086 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:37,092 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,300 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93
[2021-06-01 18:49:37,301 INFO L628 ElimStorePlain]: treesize reduction 29, result has 89.8 percent of original size
[2021-06-01 18:49:37,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:37,306 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,405 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:37,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:37,410 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,507 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:37,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:37,512 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,606 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:37,610 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:49:37,611 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:37,702 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee v_prenex_547 vanished before elimination
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee v_prenex_549 vanished before elimination
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee v_prenex_541 vanished before elimination
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee v_prenex_543 vanished before elimination
[2021-06-01 18:49:37,702 INFO L518 ElimStorePlain]: Eliminatee v_prenex_545 vanished before elimination
[2021-06-01 18:49:37,705 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:49:37,705 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1899, output treesize:198
[2021-06-01 18:49:37,870 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:49:38,060 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 33
[2021-06-01 18:49:38,135 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:38,136 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [819985417] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:38,136 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:38,136 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:38,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261366521]
[2021-06-01 18:49:38,136 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:38,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:38,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:38,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:38,136 INFO L87 Difference]: Start difference. First operand 359 states and 1081 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:38,717 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127
[2021-06-01 18:49:39,426 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 146
[2021-06-01 18:49:39,913 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 141
[2021-06-01 18:49:40,626 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 148
[2021-06-01 18:49:40,770 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69
[2021-06-01 18:49:41,127 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 141
[2021-06-01 18:49:41,994 WARN L205 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 167
[2021-06-01 18:49:42,176 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69
[2021-06-01 18:49:42,606 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 146
[2021-06-01 18:49:43,399 WARN L205 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 156
[2021-06-01 18:49:44,396 WARN L205 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 186
[2021-06-01 18:49:44,574 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74
[2021-06-01 18:49:44,986 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 149
[2021-06-01 18:49:45,927 WARN L205 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 172
[2021-06-01 18:49:46,957 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 189
[2021-06-01 18:49:47,157 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77
[2021-06-01 18:49:47,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:47,238 INFO L93 Difference]: Finished difference Result 971 states and 2721 transitions.
[2021-06-01 18:49:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2021-06-01 18:49:47,238 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:47,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:47,239 INFO L225 Difference]: With dead ends: 971
[2021-06-01 18:49:47,239 INFO L226 Difference]: Without dead ends: 912
[2021-06-01 18:49:47,240 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 9494.5ms TimeCoverageRelationStatistics Valid=291, Invalid=1115, Unknown=0, NotChecked=0, Total=1406
[2021-06-01 18:49:47,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 912 states.
[2021-06-01 18:49:47,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 912 to 365.
[2021-06-01 18:49:47,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 3.0274725274725274) internal successors, (1102), 364 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:47,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 1102 transitions.
[2021-06-01 18:49:47,247 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 1102 transitions. Word has length 20
[2021-06-01 18:49:47,248 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:47,248 INFO L482 AbstractCegarLoop]: Abstraction has 365 states and 1102 transitions.
[2021-06-01 18:49:47,248 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:47,248 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 1102 transitions.
[2021-06-01 18:49:47,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:47,248 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:47,248 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:47,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 53 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3925
[2021-06-01 18:49:47,465 INFO L430 AbstractCegarLoop]: === Iteration 175 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:47,465 INFO L82 PathProgramCache]: Analyzing trace with hash 246419480, now seen corresponding path program 26 times
[2021-06-01 18:49:47,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:47,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784402444]
[2021-06-01 18:49:47,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:47,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:47,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:47,641 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:47,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784402444]
[2021-06-01 18:49:47,641 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784402444] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:47,641 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696418970]
[2021-06-01 18:49:47,642 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 54 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:47,670 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:49:47,670 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:49:47,671 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:49:47,671 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:47,943 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,943 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,943 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:47,944 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:47,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,949 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,949 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:47,950 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:47,954 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,955 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:47,955 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:47,960 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,960 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:47,961 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:47,965 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,966 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:47,967 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:47,971 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:47,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:47,971 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,192 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56
[2021-06-01 18:49:48,193 INFO L628 ElimStorePlain]: treesize reduction 369, result has 39.0 percent of original size
[2021-06-01 18:49:48,196 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,197 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:48,198 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,201 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,201 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:48,202 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:48,206 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:48,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:48,294 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,298 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,298 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,298 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:48,299 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,302 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:48,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:48,303 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:48,442 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46
[2021-06-01 18:49:48,442 INFO L628 ElimStorePlain]: treesize reduction 27, result has 85.0 percent of original size
[2021-06-01 18:49:48,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:49:48,446 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:715, output treesize:135
[2021-06-01 18:49:49,374 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_562, array_6, v_prenex_564, v_prenex_568], 1=[array_0, v_prenex_561, v_prenex_563, v_prenex_567]}
[2021-06-01 18:49:49,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:49,380 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:49,533 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 50
[2021-06-01 18:49:49,534 INFO L628 ElimStorePlain]: treesize reduction 340, result has 31.5 percent of original size
[2021-06-01 18:49:49,538 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:49,539 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:49,594 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:49,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:49,598 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:49,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:49,651 INFO L518 ElimStorePlain]: Eliminatee v_prenex_568 vanished before elimination
[2021-06-01 18:49:49,651 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:49,651 INFO L518 ElimStorePlain]: Eliminatee v_prenex_561 vanished before elimination
[2021-06-01 18:49:49,651 INFO L518 ElimStorePlain]: Eliminatee v_prenex_563 vanished before elimination
[2021-06-01 18:49:49,651 INFO L518 ElimStorePlain]: Eliminatee v_prenex_567 vanished before elimination
[2021-06-01 18:49:49,653 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:49:49,653 INFO L247 ElimStorePlain]: Needed 4 recursive calls to eliminate 12 variables, input treesize:503, output treesize:126
[2021-06-01 18:49:49,843 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:49,844 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696418970] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:49,844 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:49,844 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:49,844 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752849277]
[2021-06-01 18:49:49,844 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:49,844 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:49,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:49,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:49,844 INFO L87 Difference]: Start difference. First operand 365 states and 1102 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:50,334 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 75
[2021-06-01 18:49:50,667 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80
[2021-06-01 18:49:50,846 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78
[2021-06-01 18:49:51,104 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 83
[2021-06-01 18:49:51,447 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 92
[2021-06-01 18:49:51,701 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86
[2021-06-01 18:49:52,065 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 93
[2021-06-01 18:49:52,573 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 106
[2021-06-01 18:49:52,946 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 106
[2021-06-01 18:49:53,351 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 96
[2021-06-01 18:49:53,863 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109
[2021-06-01 18:49:54,132 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 98
[2021-06-01 18:49:54,569 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 102
[2021-06-01 18:49:55,169 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 116
[2021-06-01 18:49:55,471 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 104
[2021-06-01 18:49:55,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:49:55,517 INFO L93 Difference]: Finished difference Result 797 states and 2283 transitions.
[2021-06-01 18:49:55,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2021-06-01 18:49:55,517 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:49:55,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:49:55,518 INFO L225 Difference]: With dead ends: 797
[2021-06-01 18:49:55,518 INFO L226 Difference]: Without dead ends: 767
[2021-06-01 18:49:55,518 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 126 ImplicationChecksByTransitivity, 5969.8ms TimeCoverageRelationStatistics Valid=245, Invalid=1015, Unknown=0, NotChecked=0, Total=1260
[2021-06-01 18:49:55,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 767 states.
[2021-06-01 18:49:55,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 767 to 368.
[2021-06-01 18:49:55,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 3.035422343324251) internal successors, (1114), 367 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:55,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 1114 transitions.
[2021-06-01 18:49:55,523 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 1114 transitions. Word has length 20
[2021-06-01 18:49:55,523 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:49:55,523 INFO L482 AbstractCegarLoop]: Abstraction has 368 states and 1114 transitions.
[2021-06-01 18:49:55,523 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:55,523 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 1114 transitions.
[2021-06-01 18:49:55,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:49:55,524 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:49:55,524 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:49:55,724 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 54 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable4098
[2021-06-01 18:49:55,724 INFO L430 AbstractCegarLoop]: === Iteration 176 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:49:55,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:49:55,724 INFO L82 PathProgramCache]: Analyzing trace with hash -492920346, now seen corresponding path program 27 times
[2021-06-01 18:49:55,724 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:49:55,724 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1796893478]
[2021-06-01 18:49:55,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:49:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:49:55,897 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:55,897 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:49:55,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1796893478]
[2021-06-01 18:49:55,898 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1796893478] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:55,898 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1098613403]
[2021-06-01 18:49:55,898 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 55 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:49:55,924 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:49:55,924 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:49:55,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:49:55,925 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:49:56,405 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,406 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:56,407 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,411 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,412 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,412 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:56,413 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,417 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,417 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:49:56,418 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,697 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 102
[2021-06-01 18:49:56,697 INFO L628 ElimStorePlain]: treesize reduction 185, result has 65.2 percent of original size
[2021-06-01 18:49:56,702 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,703 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:49:56,706 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,711 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:56,712 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,827 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:49:56,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:56,832 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,832 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:56,833 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:56,837 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:56,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:56,838 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,032 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 86
[2021-06-01 18:49:57,032 INFO L628 ElimStorePlain]: treesize reduction 27, result has 90.4 percent of original size
[2021-06-01 18:49:57,036 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:57,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:57,037 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,131 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:57,135 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:57,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:49:57,136 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,232 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:57,238 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:49:57,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:57,250 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,340 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:57,346 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:49:57,346 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:561, output treesize:218
[2021-06-01 18:49:57,514 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 88
[2021-06-01 18:49:57,854 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_591, v_prenex_583, array_6, v_prenex_585, v_prenex_587, v_prenex_589], 1=[array_0, v_prenex_590, v_prenex_582, v_prenex_584, v_prenex_586, v_prenex_588]}
[2021-06-01 18:49:57,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:57,868 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:57,876 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:57,883 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:49:57,891 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:49:57,899 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:57,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:49:57,907 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,287 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 94
[2021-06-01 18:49:58,287 INFO L628 ElimStorePlain]: treesize reduction 1320, result has 16.9 percent of original size
[2021-06-01 18:49:58,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:49:58,293 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,397 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:49:58,398 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:58,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:49:58,403 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,506 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:49:58,506 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:58,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:49:58,512 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:58,516 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,689 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72
[2021-06-01 18:49:58,690 INFO L628 ElimStorePlain]: treesize reduction 27, result has 88.2 percent of original size
[2021-06-01 18:49:58,694 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:58,695 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:58,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:49:58,781 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:49:58,867 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_590 vanished before elimination
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_582 vanished before elimination
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_584 vanished before elimination
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_586 vanished before elimination
[2021-06-01 18:49:58,867 INFO L518 ElimStorePlain]: Eliminatee v_prenex_588 vanished before elimination
[2021-06-01 18:49:58,870 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:49:58,870 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1703, output treesize:140
[2021-06-01 18:49:59,007 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:49:59,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:49:59,314 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1098613403] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:49:59,314 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:49:59,314 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:49:59,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014950893]
[2021-06-01 18:49:59,314 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:49:59,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:49:59,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:49:59,315 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:49:59,315 INFO L87 Difference]: Start difference. First operand 368 states and 1114 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:49:59,975 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 120
[2021-06-01 18:50:00,480 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 122
[2021-06-01 18:50:00,964 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 124
[2021-06-01 18:50:01,543 WARN L205 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 130
[2021-06-01 18:50:02,126 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 134
[2021-06-01 18:50:02,796 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 140
[2021-06-01 18:50:03,469 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 139
[2021-06-01 18:50:04,179 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 145
[2021-06-01 18:50:04,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:04,259 INFO L93 Difference]: Finished difference Result 856 states and 2441 transitions.
[2021-06-01 18:50:04,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:50:04,259 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:04,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:04,260 INFO L225 Difference]: With dead ends: 856
[2021-06-01 18:50:04,261 INFO L226 Difference]: Without dead ends: 826
[2021-06-01 18:50:04,261 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5305.1ms TimeCoverageRelationStatistics Valid=167, Invalid=645, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:50:04,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 826 states.
[2021-06-01 18:50:04,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 826 to 372.
[2021-06-01 18:50:04,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 3.056603773584906) internal successors, (1134), 371 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:04,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 1134 transitions.
[2021-06-01 18:50:04,266 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 1134 transitions. Word has length 20
[2021-06-01 18:50:04,266 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:04,266 INFO L482 AbstractCegarLoop]: Abstraction has 372 states and 1134 transitions.
[2021-06-01 18:50:04,266 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:04,266 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 1134 transitions.
[2021-06-01 18:50:04,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:04,266 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:04,266 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:04,467 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4214,55 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:04,467 INFO L430 AbstractCegarLoop]: === Iteration 177 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:04,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:04,467 INFO L82 PathProgramCache]: Analyzing trace with hash -1711555706, now seen corresponding path program 28 times
[2021-06-01 18:50:04,467 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:04,467 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874741117]
[2021-06-01 18:50:04,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:04,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:04,666 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:04,666 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:04,666 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874741117]
[2021-06-01 18:50:04,666 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874741117] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:04,667 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117729210]
[2021-06-01 18:50:04,667 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 56 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:04,707 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:50:04,707 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:04,707 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:04,708 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:05,256 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,257 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:05,258 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,264 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,264 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:05,265 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:05,271 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,276 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,276 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:05,278 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,282 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,282 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:05,284 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,288 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,289 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:05,289 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,597 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71
[2021-06-01 18:50:05,598 INFO L628 ElimStorePlain]: treesize reduction 403, result has 46.1 percent of original size
[2021-06-01 18:50:05,602 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,602 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:05,604 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,608 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,608 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:05,609 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,613 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:05,614 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,849 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64
[2021-06-01 18:50:05,850 INFO L628 ElimStorePlain]: treesize reduction 30, result has 90.3 percent of original size
[2021-06-01 18:50:05,853 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,854 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:05,855 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,858 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,859 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,859 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:05,859 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,863 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:05,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:05,864 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:05,970 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60
[2021-06-01 18:50:05,971 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:05,977 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:50:05,977 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:251
[2021-06-01 18:50:06,166 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96
[2021-06-01 18:50:06,521 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_602, v_prenex_604, v_prenex_606, v_prenex_608, array_6, v_prenex_610], 1=[v_prenex_603, array_0, v_prenex_605, v_prenex_607, v_prenex_609, v_prenex_601]}
[2021-06-01 18:50:06,529 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:06,530 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:06,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:06,538 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:06,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:06,546 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts.
[2021-06-01 18:50:06,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:06,554 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:06,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:06,562 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:06,570 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:06,570 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,001 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 98
[2021-06-01 18:50:07,001 INFO L628 ElimStorePlain]: treesize reduction 1435, result has 15.2 percent of original size
[2021-06-01 18:50:07,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:07,007 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,113 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2021-06-01 18:50:07,113 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:07,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:07,119 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,222 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:50:07,223 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:07,227 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:50:07,228 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,336 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:50:07,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:07,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:07,341 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:07,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:07,446 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:07,542 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:07,542 INFO L518 ElimStorePlain]: Eliminatee v_prenex_603 vanished before elimination
[2021-06-01 18:50:07,542 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:50:07,542 INFO L518 ElimStorePlain]: Eliminatee v_prenex_605 vanished before elimination
[2021-06-01 18:50:07,542 INFO L518 ElimStorePlain]: Eliminatee v_prenex_607 vanished before elimination
[2021-06-01 18:50:07,542 INFO L518 ElimStorePlain]: Eliminatee v_prenex_609 vanished before elimination
[2021-06-01 18:50:07,543 INFO L518 ElimStorePlain]: Eliminatee v_prenex_601 vanished before elimination
[2021-06-01 18:50:07,546 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:50:07,546 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1817, output treesize:194
[2021-06-01 18:50:07,712 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:50:08,034 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:08,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1117729210] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:08,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:08,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:50:08,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [143402883]
[2021-06-01 18:50:08,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:50:08,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:08,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:50:08,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:50:08,035 INFO L87 Difference]: Start difference. First operand 372 states and 1134 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:08,601 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 123
[2021-06-01 18:50:09,041 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128
[2021-06-01 18:50:09,467 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 130
[2021-06-01 18:50:09,993 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 139
[2021-06-01 18:50:10,647 WARN L205 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 137
[2021-06-01 18:50:11,394 WARN L205 SmtUtils]: Spent 643.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 146
[2021-06-01 18:50:12,146 WARN L205 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 145
[2021-06-01 18:50:12,950 WARN L205 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 154
[2021-06-01 18:50:13,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:13,022 INFO L93 Difference]: Finished difference Result 857 states and 2432 transitions.
[2021-06-01 18:50:13,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:50:13,023 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:13,024 INFO L225 Difference]: With dead ends: 857
[2021-06-01 18:50:13,024 INFO L226 Difference]: Without dead ends: 827
[2021-06-01 18:50:13,024 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 5434.2ms TimeCoverageRelationStatistics Valid=167, Invalid=645, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:50:13,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states.
[2021-06-01 18:50:13,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 372.
[2021-06-01 18:50:13,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 3.056603773584906) internal successors, (1134), 371 states have internal predecessors, (1134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:13,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 1134 transitions.
[2021-06-01 18:50:13,029 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 1134 transitions. Word has length 20
[2021-06-01 18:50:13,029 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:13,029 INFO L482 AbstractCegarLoop]: Abstraction has 372 states and 1134 transitions.
[2021-06-01 18:50:13,029 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:13,030 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 1134 transitions.
[2021-06-01 18:50:13,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:13,030 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:13,030 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:13,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4344,56 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:13,231 INFO L430 AbstractCegarLoop]: === Iteration 178 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:13,231 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:13,231 INFO L82 PathProgramCache]: Analyzing trace with hash 496140202, now seen corresponding path program 29 times
[2021-06-01 18:50:13,231 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:13,231 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730271683]
[2021-06-01 18:50:13,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:13,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:13,459 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:13,459 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:13,459 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730271683]
[2021-06-01 18:50:13,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730271683] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:13,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642866699]
[2021-06-01 18:50:13,460 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 57 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:13,493 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:50:13,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:13,494 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:13,494 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:13,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,669 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,674 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:13,680 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:13,686 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,692 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:13,697 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:13,703 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:13,716 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,721 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:50:13,726 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:13,730 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,735 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,740 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,744 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,749 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:50:13,754 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,758 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,758 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:13,763 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:13,768 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:13,772 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:50:13,777 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,780 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,781 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:13,785 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:50:13,790 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:50:13,795 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,799 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,802 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:50:13,803 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,809 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:50:13,813 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,818 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:13,822 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,825 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:50:13,826 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,830 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,834 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:50:13,834 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,838 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:13,838 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:13,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:13,842 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:14,004 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 38
[2021-06-01 18:50:14,004 INFO L628 ElimStorePlain]: treesize reduction 380, result has 32.9 percent of original size
[2021-06-01 18:50:14,006 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:50:14,006 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1873, output treesize:186
[2021-06-01 18:50:14,431 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40
[2021-06-01 18:50:14,670 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 45
[2021-06-01 18:50:14,845 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:14,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642866699] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:14,845 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:14,845 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:50:14,845 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929466849]
[2021-06-01 18:50:14,845 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:50:14,845 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:14,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:50:14,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:50:14,846 INFO L87 Difference]: Start difference. First operand 372 states and 1134 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:15,426 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 60
[2021-06-01 18:50:15,619 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43
[2021-06-01 18:50:15,957 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65
[2021-06-01 18:50:16,145 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58
[2021-06-01 18:50:16,593 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84
[2021-06-01 18:50:16,808 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 55
[2021-06-01 18:50:17,230 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76
[2021-06-01 18:50:17,814 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 98
[2021-06-01 18:50:18,046 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61
[2021-06-01 18:50:18,573 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 89
[2021-06-01 18:50:19,181 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 101
[2021-06-01 18:50:19,811 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 105
[2021-06-01 18:50:20,053 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64
[2021-06-01 18:50:20,609 WARN L205 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 94
[2021-06-01 18:50:21,265 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 108
[2021-06-01 18:50:21,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:21,320 INFO L93 Difference]: Finished difference Result 1092 states and 3018 transitions.
[2021-06-01 18:50:21,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2021-06-01 18:50:21,320 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:21,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:21,322 INFO L225 Difference]: With dead ends: 1092
[2021-06-01 18:50:21,322 INFO L226 Difference]: Without dead ends: 1020
[2021-06-01 18:50:21,322 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 6989.6ms TimeCoverageRelationStatistics Valid=261, Invalid=1071, Unknown=0, NotChecked=0, Total=1332
[2021-06-01 18:50:21,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1020 states.
[2021-06-01 18:50:21,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1020 to 372.
[2021-06-01 18:50:21,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 3.070080862533693) internal successors, (1139), 371 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:21,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 1139 transitions.
[2021-06-01 18:50:21,328 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 1139 transitions. Word has length 20
[2021-06-01 18:50:21,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:21,328 INFO L482 AbstractCegarLoop]: Abstraction has 372 states and 1139 transitions.
[2021-06-01 18:50:21,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:21,328 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 1139 transitions.
[2021-06-01 18:50:21,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:21,328 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:21,328 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:21,529 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4479,57 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:21,529 INFO L430 AbstractCegarLoop]: === Iteration 179 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:21,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:21,529 INFO L82 PathProgramCache]: Analyzing trace with hash -690985846, now seen corresponding path program 30 times
[2021-06-01 18:50:21,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:21,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [394500437]
[2021-06-01 18:50:21,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:21,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:21,811 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:21,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [394500437]
[2021-06-01 18:50:21,811 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [394500437] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:21,811 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [508003954]
[2021-06-01 18:50:21,811 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 58 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:21,841 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:50:21,841 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:21,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:21,842 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:22,257 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,258 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:22,259 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,263 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,264 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:50:22,264 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,269 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,269 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,269 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:22,270 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,275 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,275 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:22,276 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,280 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,280 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:50:22,281 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,285 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:22,287 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,623 WARN L205 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69
[2021-06-01 18:50:22,624 INFO L628 ElimStorePlain]: treesize reduction 472, result has 43.7 percent of original size
[2021-06-01 18:50:22,628 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,628 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:22,629 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,633 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,633 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:22,634 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,638 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:22,639 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,896 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65
[2021-06-01 18:50:22,896 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:50:22,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,901 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:22,901 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:22,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:22,907 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:22,910 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:50:22,910 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:23,012 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58
[2021-06-01 18:50:23,013 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:23,018 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:50:23,018 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:241
[2021-06-01 18:50:23,510 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_625, v_prenex_627, v_prenex_629, array_6, v_prenex_621, v_prenex_623], 1=[v_prenex_624, v_prenex_626, array_0, v_prenex_628, v_prenex_620, v_prenex_622]}
[2021-06-01 18:50:23,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:23,521 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:23,530 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:23,531 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:23,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:23,541 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:23,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:23,551 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts.
[2021-06-01 18:50:23,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:23,562 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:23,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:23,572 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,007 WARN L205 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 92
[2021-06-01 18:50:24,008 INFO L628 ElimStorePlain]: treesize reduction 1435, result has 15.2 percent of original size
[2021-06-01 18:50:24,013 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:24,014 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,117 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:50:24,118 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:24,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:24,123 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,229 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:50:24,229 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:24,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:24,234 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:24,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:24,336 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,431 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:24,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:50:24,436 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:24,528 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee v_prenex_624 vanished before elimination
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee v_prenex_626 vanished before elimination
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee v_prenex_628 vanished before elimination
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee v_prenex_620 vanished before elimination
[2021-06-01 18:50:24,529 INFO L518 ElimStorePlain]: Eliminatee v_prenex_622 vanished before elimination
[2021-06-01 18:50:24,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:50:24,532 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1817, output treesize:164
[2021-06-01 18:50:24,690 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34
[2021-06-01 18:50:24,854 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:50:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:25,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [508003954] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:25,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:25,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:50:25,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [864689150]
[2021-06-01 18:50:25,076 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:50:25,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:25,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:50:25,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:50:25,077 INFO L87 Difference]: Start difference. First operand 372 states and 1139 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:25,650 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 119
[2021-06-01 18:50:26,110 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 126
[2021-06-01 18:50:26,536 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 124
[2021-06-01 18:50:27,031 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 105
[2021-06-01 18:50:27,697 WARN L205 SmtUtils]: Spent 602.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 131
[2021-06-01 18:50:28,302 WARN L205 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 115
[2021-06-01 18:50:29,037 WARN L205 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 139
[2021-06-01 18:50:29,684 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 125
[2021-06-01 18:50:29,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:29,735 INFO L93 Difference]: Finished difference Result 864 states and 2440 transitions.
[2021-06-01 18:50:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:50:29,735 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:29,736 INFO L225 Difference]: With dead ends: 864
[2021-06-01 18:50:29,736 INFO L226 Difference]: Without dead ends: 834
[2021-06-01 18:50:29,736 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 5157.9ms TimeCoverageRelationStatistics Valid=163, Invalid=649, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:50:29,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 834 states.
[2021-06-01 18:50:29,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 834 to 376.
[2021-06-01 18:50:29,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 3.0853333333333333) internal successors, (1157), 375 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:29,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1157 transitions.
[2021-06-01 18:50:29,742 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1157 transitions. Word has length 20
[2021-06-01 18:50:29,742 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:29,742 INFO L482 AbstractCegarLoop]: Abstraction has 376 states and 1157 transitions.
[2021-06-01 18:50:29,742 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:29,742 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1157 transitions.
[2021-06-01 18:50:29,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:29,742 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:29,742 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:29,943 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4533,58 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:29,943 INFO L430 AbstractCegarLoop]: === Iteration 180 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:29,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:29,943 INFO L82 PathProgramCache]: Analyzing trace with hash 341702684, now seen corresponding path program 31 times
[2021-06-01 18:50:29,943 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:29,943 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580098908]
[2021-06-01 18:50:29,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:29,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:30,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:30,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:30,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580098908]
[2021-06-01 18:50:30,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580098908] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:30,121 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530658981]
[2021-06-01 18:50:30,121 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 59 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:30,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:30,160 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:30,160 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:30,656 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,657 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:30,658 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:30,662 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,663 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,663 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:50:30,663 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:30,668 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,668 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:30,669 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:30,674 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,674 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:30,675 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:30,680 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,681 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:50:30,682 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:30,686 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:30,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:50:30,687 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,021 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71
[2021-06-01 18:50:31,022 INFO L628 ElimStorePlain]: treesize reduction 472, result has 43.7 percent of original size
[2021-06-01 18:50:31,026 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,026 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:31,027 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,031 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:50:31,031 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,035 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:31,036 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,153 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:50:31,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:31,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:31,158 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,162 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,162 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:31,164 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,167 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:31,167 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:31,168 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:31,380 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60
[2021-06-01 18:50:31,381 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:50:31,387 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:50:31,387 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:251
[2021-06-01 18:50:31,573 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96
[2021-06-01 18:50:32,132 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 102
[2021-06-01 18:50:32,436 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_657, v_prenex_659, v_prenex_649, array_6, v_prenex_651, v_prenex_653, v_prenex_655], 1=[v_prenex_658, v_prenex_648, array_0, v_prenex_650, v_prenex_652, v_prenex_654, v_prenex_656]}
[2021-06-01 18:50:32,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:32,446 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:32,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:32,455 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts.
[2021-06-01 18:50:32,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:32,464 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:32,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:32,473 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:32,481 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:50:32,481 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:32,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:32,490 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:32,938 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 103
[2021-06-01 18:50:32,939 INFO L628 ElimStorePlain]: treesize reduction 1612, result has 14.4 percent of original size
[2021-06-01 18:50:32,950 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:32,951 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,055 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 98
[2021-06-01 18:50:33,055 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:33,061 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,164 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2021-06-01 18:50:33,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:33,170 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,270 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:50:33,270 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:33,276 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,374 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:50:33,393 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,503 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:50:33,504 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:33,509 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:33,601 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_658 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_648 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_650 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_652 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_654 vanished before elimination
[2021-06-01 18:50:33,602 INFO L518 ElimStorePlain]: Eliminatee v_prenex_656 vanished before elimination
[2021-06-01 18:50:33,605 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:50:33,605 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:175
[2021-06-01 18:50:33,766 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:50:33,953 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:33,953 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530658981] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:33,953 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:33,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:50:33,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022436959]
[2021-06-01 18:50:33,954 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:50:33,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:33,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:50:33,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:50:33,954 INFO L87 Difference]: Start difference. First operand 376 states and 1157 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:34,527 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 123
[2021-06-01 18:50:35,119 WARN L205 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 128
[2021-06-01 18:50:36,026 WARN L205 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 197
[2021-06-01 18:50:36,511 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 136
[2021-06-01 18:50:37,004 WARN L205 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 139
[2021-06-01 18:50:37,412 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 130
[2021-06-01 18:50:37,883 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 143
[2021-06-01 18:50:38,420 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 146
[2021-06-01 18:50:38,878 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 137
[2021-06-01 18:50:38,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:38,927 INFO L93 Difference]: Finished difference Result 759 states and 2172 transitions.
[2021-06-01 18:50:38,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:50:38,927 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:38,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:38,928 INFO L225 Difference]: With dead ends: 759
[2021-06-01 18:50:38,928 INFO L226 Difference]: Without dead ends: 729
[2021-06-01 18:50:38,928 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 5599.7ms TimeCoverageRelationStatistics Valid=162, Invalid=708, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:50:38,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states.
[2021-06-01 18:50:38,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 376.
[2021-06-01 18:50:38,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 376 states, 375 states have (on average 3.0853333333333333) internal successors, (1157), 375 states have internal predecessors, (1157), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:38,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 376 states to 376 states and 1157 transitions.
[2021-06-01 18:50:38,933 INFO L78 Accepts]: Start accepts. Automaton has 376 states and 1157 transitions. Word has length 20
[2021-06-01 18:50:38,933 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:38,933 INFO L482 AbstractCegarLoop]: Abstraction has 376 states and 1157 transitions.
[2021-06-01 18:50:38,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:38,934 INFO L276 IsEmpty]: Start isEmpty. Operand 376 states and 1157 transitions.
[2021-06-01 18:50:38,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:38,934 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:38,934 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:39,134 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4685,59 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:39,135 INFO L430 AbstractCegarLoop]: === Iteration 181 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:39,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:39,135 INFO L82 PathProgramCache]: Analyzing trace with hash -828486312, now seen corresponding path program 32 times
[2021-06-01 18:50:39,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:39,135 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854623722]
[2021-06-01 18:50:39,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:39,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:39,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:39,378 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:39,378 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854623722]
[2021-06-01 18:50:39,378 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854623722] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:39,379 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691337229]
[2021-06-01 18:50:39,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 60 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:39,411 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:50:39,411 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:39,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:50:39,412 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:39,716 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,717 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:39,718 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,723 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,723 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,723 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:39,724 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,729 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:39,730 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,734 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:50:39,734 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,739 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,739 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,739 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:39,740 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,744 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,744 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:39,745 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,953 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56
[2021-06-01 18:50:39,953 INFO L628 ElimStorePlain]: treesize reduction 322, result has 40.6 percent of original size
[2021-06-01 18:50:39,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:39,958 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,961 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,961 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:39,962 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:39,966 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:39,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:39,967 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:40,112 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 50
[2021-06-01 18:50:40,113 INFO L628 ElimStorePlain]: treesize reduction 25, result has 87.4 percent of original size
[2021-06-01 18:50:40,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:40,117 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:40,120 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:40,120 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:40,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:40,121 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:40,124 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:40,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:40,125 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:40,192 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:40,196 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:50:40,196 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:715, output treesize:135
[2021-06-01 18:50:40,329 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60
[2021-06-01 18:50:41,039 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_668, v_prenex_670, v_prenex_672, array_6], 1=[v_prenex_669, array_0, v_prenex_671, v_prenex_667]}
[2021-06-01 18:50:41,046 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:41,047 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:41,054 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:50:41,061 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:41,068 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:50:41,075 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,081 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:41,082 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,404 WARN L205 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 69
[2021-06-01 18:50:41,404 INFO L628 ElimStorePlain]: treesize reduction 883, result has 23.5 percent of original size
[2021-06-01 18:50:41,409 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:41,409 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,515 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:50:41,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:41,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:41,521 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,524 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:41,525 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,728 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58
[2021-06-01 18:50:41,728 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:50:41,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:41,732 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:41,829 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:41,829 INFO L518 ElimStorePlain]: Eliminatee v_prenex_669 vanished before elimination
[2021-06-01 18:50:41,829 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:50:41,829 INFO L518 ElimStorePlain]: Eliminatee v_prenex_671 vanished before elimination
[2021-06-01 18:50:41,829 INFO L518 ElimStorePlain]: Eliminatee v_prenex_667 vanished before elimination
[2021-06-01 18:50:41,832 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:50:41,832 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:1348, output treesize:205
[2021-06-01 18:50:41,972 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 33
[2021-06-01 18:50:42,186 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:42,186 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691337229] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:42,186 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:42,186 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:50:42,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244945886]
[2021-06-01 18:50:42,186 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:50:42,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:42,186 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:50:42,186 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:50:42,186 INFO L87 Difference]: Start difference. First operand 376 states and 1157 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:42,668 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88
[2021-06-01 18:50:42,944 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84
[2021-06-01 18:50:43,273 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 90
[2021-06-01 18:50:43,522 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87
[2021-06-01 18:50:44,198 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 106
[2021-06-01 18:50:44,725 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 97
[2021-06-01 18:50:45,109 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 116
[2021-06-01 18:50:45,449 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 104
[2021-06-01 18:50:45,863 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 122
[2021-06-01 18:50:46,121 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 103
[2021-06-01 18:50:46,510 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 121
[2021-06-01 18:50:46,866 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 110
[2021-06-01 18:50:47,175 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 108
[2021-06-01 18:50:47,774 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125
[2021-06-01 18:50:47,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:47,837 INFO L93 Difference]: Finished difference Result 927 states and 2581 transitions.
[2021-06-01 18:50:47,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:50:47,837 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:47,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:47,838 INFO L225 Difference]: With dead ends: 927
[2021-06-01 18:50:47,838 INFO L226 Difference]: Without dead ends: 853
[2021-06-01 18:50:47,838 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 6086.2ms TimeCoverageRelationStatistics Valid=225, Invalid=965, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:50:47,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 853 states.
[2021-06-01 18:50:47,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 853 to 382.
[2021-06-01 18:50:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 381 states have (on average 3.094488188976378) internal successors, (1179), 381 states have internal predecessors, (1179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:47,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 1179 transitions.
[2021-06-01 18:50:47,844 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 1179 transitions. Word has length 20
[2021-06-01 18:50:47,844 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:47,844 INFO L482 AbstractCegarLoop]: Abstraction has 382 states and 1179 transitions.
[2021-06-01 18:50:47,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 1179 transitions.
[2021-06-01 18:50:47,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:47,844 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:47,844 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:48,045 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4854,60 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:48,045 INFO L430 AbstractCegarLoop]: === Iteration 182 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:48,045 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:48,045 INFO L82 PathProgramCache]: Analyzing trace with hash 637711574, now seen corresponding path program 33 times
[2021-06-01 18:50:48,045 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:48,045 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913736115]
[2021-06-01 18:50:48,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:48,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:48,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:48,195 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:48,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913736115]
[2021-06-01 18:50:48,195 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [913736115] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:48,195 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1860343035]
[2021-06-01 18:50:48,195 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 61 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:48,221 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:50:48,222 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:48,222 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:48,222 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:50:48,706 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:48,706 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:48,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:48,707 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:48,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:48,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:48,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:48,714 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:48,719 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:48,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:50:48,721 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,009 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 106
[2021-06-01 18:50:49,009 INFO L628 ElimStorePlain]: treesize reduction 165, result has 67.5 percent of original size
[2021-06-01 18:50:49,014 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:49,015 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,146 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2021-06-01 18:50:49,146 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:49,151 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,151 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,152 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:49,153 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,157 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:49,158 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,276 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:50:49,276 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:49,280 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,281 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:50:49,282 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,286 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:49,287 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,400 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:50:49,400 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:49,405 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:49,406 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,518 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:50:49,518 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:49,522 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:50:49,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:50:49,523 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:49,632 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:50:49,633 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:49,639 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:50:49,639 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:597, output treesize:259
[2021-06-01 18:50:49,831 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97
[2021-06-01 18:50:50,351 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_691, v_prenex_693, array_6, v_prenex_695, v_prenex_687, v_prenex_689], 1=[array_0, v_prenex_690, v_prenex_692, v_prenex_694, v_prenex_686, v_prenex_688]}
[2021-06-01 18:50:50,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2021-06-01 18:50:50,361 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:50:50,371 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,379 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:50:50,379 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:50:50,389 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:50:50,398 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2021-06-01 18:50:50,408 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,827 WARN L205 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 100
[2021-06-01 18:50:50,828 INFO L628 ElimStorePlain]: treesize reduction 1502, result has 15.1 percent of original size
[2021-06-01 18:50:50,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:50,834 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:50,939 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:50:50,939 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:50,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:50,945 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:51,048 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:50:51,048 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:51,053 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:51,054 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:51,153 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:51,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:50:51,159 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:51,253 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:51,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:50:51,258 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:50:51,350 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:50:51,350 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:50:51,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_690 vanished before elimination
[2021-06-01 18:50:51,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_692 vanished before elimination
[2021-06-01 18:50:51,350 INFO L518 ElimStorePlain]: Eliminatee v_prenex_694 vanished before elimination
[2021-06-01 18:50:51,351 INFO L518 ElimStorePlain]: Eliminatee v_prenex_686 vanished before elimination
[2021-06-01 18:50:51,351 INFO L518 ElimStorePlain]: Eliminatee v_prenex_688 vanished before elimination
[2021-06-01 18:50:51,359 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:50:51,359 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1893, output treesize:198
[2021-06-01 18:50:51,526 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:50:51,747 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:51,747 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1860343035] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:51,747 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:50:51,747 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:50:51,747 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412144710]
[2021-06-01 18:50:51,747 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:50:51,747 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:50:51,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:50:51,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:50:51,748 INFO L87 Difference]: Start difference. First operand 382 states and 1179 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:52,312 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 124
[2021-06-01 18:50:52,541 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52
[2021-06-01 18:50:52,890 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 129
[2021-06-01 18:50:53,095 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66
[2021-06-01 18:50:53,439 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 135
[2021-06-01 18:50:53,942 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 137
[2021-06-01 18:50:54,146 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63
[2021-06-01 18:50:54,522 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 141
[2021-06-01 18:50:55,182 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 146
[2021-06-01 18:50:55,422 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69
[2021-06-01 18:50:55,830 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 144
[2021-06-01 18:50:56,502 WARN L205 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 152
[2021-06-01 18:50:56,926 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 139
[2021-06-01 18:50:57,591 WARN L205 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 153
[2021-06-01 18:50:57,816 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72
[2021-06-01 18:50:58,567 WARN L205 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 162
[2021-06-01 18:50:59,017 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 146
[2021-06-01 18:50:59,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:50:59,089 INFO L93 Difference]: Finished difference Result 930 states and 2632 transitions.
[2021-06-01 18:50:59,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2021-06-01 18:50:59,089 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:50:59,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:50:59,090 INFO L225 Difference]: With dead ends: 930
[2021-06-01 18:50:59,090 INFO L226 Difference]: Without dead ends: 885
[2021-06-01 18:50:59,091 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 7653.0ms TimeCoverageRelationStatistics Valid=276, Invalid=1130, Unknown=0, NotChecked=0, Total=1406
[2021-06-01 18:50:59,092 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 885 states.
[2021-06-01 18:50:59,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 885 to 386.
[2021-06-01 18:50:59,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 386 states, 385 states have (on average 3.103896103896104) internal successors, (1195), 385 states have internal predecessors, (1195), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:59,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 386 states to 386 states and 1195 transitions.
[2021-06-01 18:50:59,098 INFO L78 Accepts]: Start accepts. Automaton has 386 states and 1195 transitions. Word has length 20
[2021-06-01 18:50:59,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:50:59,099 INFO L482 AbstractCegarLoop]: Abstraction has 386 states and 1195 transitions.
[2021-06-01 18:50:59,099 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:50:59,099 INFO L276 IsEmpty]: Start isEmpty. Operand 386 states and 1195 transitions.
[2021-06-01 18:50:59,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:50:59,099 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:50:59,099 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:50:59,312 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5039,61 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:59,313 INFO L430 AbstractCegarLoop]: === Iteration 183 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:50:59,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:50:59,313 INFO L82 PathProgramCache]: Analyzing trace with hash -426176046, now seen corresponding path program 34 times
[2021-06-01 18:50:59,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:50:59,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815068585]
[2021-06-01 18:50:59,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:50:59,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:50:59,515 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:50:59,515 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:50:59,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815068585]
[2021-06-01 18:50:59,515 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815068585] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:50:59,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1714280372]
[2021-06-01 18:50:59,515 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 62 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:50:59,541 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:50:59,542 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:50:59,542 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:50:59,542 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:00,070 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:00,072 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,077 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,077 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:00,078 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,083 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,084 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,084 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:00,085 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,090 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,090 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:00,091 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,096 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,097 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:00,098 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,102 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:00,103 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,435 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69
[2021-06-01 18:51:00,436 INFO L628 ElimStorePlain]: treesize reduction 421, result has 44.2 percent of original size
[2021-06-01 18:51:00,440 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,441 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:00,442 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:00,447 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,451 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:00,452 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,691 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63
[2021-06-01 18:51:00,692 INFO L628 ElimStorePlain]: treesize reduction 40, result has 86.9 percent of original size
[2021-06-01 18:51:00,696 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,696 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:00,697 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:00,701 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,705 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:00,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:00,706 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:00,818 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59
[2021-06-01 18:51:00,818 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:00,823 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:51:00,823 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:235
[2021-06-01 18:51:01,049 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2021-06-01 18:51:01,472 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80
[2021-06-01 18:51:01,772 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_712, v_prenex_706, v_prenex_708, array_6, v_prenex_710], 1=[v_prenex_705, array_3, v_prenex_707, v_prenex_709, v_prenex_711]}
[2021-06-01 18:51:01,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:01,782 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:01,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:01,792 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:01,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:01,802 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:01,812 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:01,813 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:01,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:01,823 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:01,832 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:01,832 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,251 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 84
[2021-06-01 18:51:02,251 INFO L628 ElimStorePlain]: treesize reduction 1226, result has 18.9 percent of original size
[2021-06-01 18:51:02,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:02,256 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,364 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-06-01 18:51:02,364 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:02,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:02,370 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:02,374 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,578 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73
[2021-06-01 18:51:02,579 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:51:02,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:02,583 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,687 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 66
[2021-06-01 18:51:02,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:02,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:02,691 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:02,788 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:02,788 INFO L518 ElimStorePlain]: Eliminatee v_prenex_705 vanished before elimination
[2021-06-01 18:51:02,788 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:02,788 INFO L518 ElimStorePlain]: Eliminatee v_prenex_707 vanished before elimination
[2021-06-01 18:51:02,788 INFO L518 ElimStorePlain]: Eliminatee v_prenex_709 vanished before elimination
[2021-06-01 18:51:02,788 INFO L518 ElimStorePlain]: Eliminatee v_prenex_711 vanished before elimination
[2021-06-01 18:51:02,791 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 10 dim-1 vars, End of recursive call: and 12 xjuncts.
[2021-06-01 18:51:02,791 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 15 variables, input treesize:1621, output treesize:200
[2021-06-01 18:51:02,932 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:51:03,005 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:03,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1714280372] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:03,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:03,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:03,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688049920]
[2021-06-01 18:51:03,006 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:03,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:03,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:03,006 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:03,007 INFO L87 Difference]: Start difference. First operand 386 states and 1195 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:03,493 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61
[2021-06-01 18:51:03,767 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 102
[2021-06-01 18:51:04,436 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 131
[2021-06-01 18:51:04,713 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78
[2021-06-01 18:51:05,026 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 88
[2021-06-01 18:51:05,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:05,077 INFO L93 Difference]: Finished difference Result 592 states and 1772 transitions.
[2021-06-01 18:51:05,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:51:05,077 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:05,078 INFO L225 Difference]: With dead ends: 592
[2021-06-01 18:51:05,078 INFO L226 Difference]: Without dead ends: 577
[2021-06-01 18:51:05,078 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2695.0ms TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:51:05,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states.
[2021-06-01 18:51:05,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 390.
[2021-06-01 18:51:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 390 states, 389 states have (on average 3.113110539845758) internal successors, (1211), 389 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 390 states to 390 states and 1211 transitions.
[2021-06-01 18:51:05,084 INFO L78 Accepts]: Start accepts. Automaton has 390 states and 1211 transitions. Word has length 20
[2021-06-01 18:51:05,084 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:05,084 INFO L482 AbstractCegarLoop]: Abstraction has 390 states and 1211 transitions.
[2021-06-01 18:51:05,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:05,084 INFO L276 IsEmpty]: Start isEmpty. Operand 390 states and 1211 transitions.
[2021-06-01 18:51:05,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:05,085 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:05,085 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:05,307 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 62 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5168
[2021-06-01 18:51:05,307 INFO L430 AbstractCegarLoop]: === Iteration 184 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:05,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:05,307 INFO L82 PathProgramCache]: Analyzing trace with hash -633183728, now seen corresponding path program 35 times
[2021-06-01 18:51:05,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:05,307 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917242873]
[2021-06-01 18:51:05,307 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:05,469 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:05,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:05,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917242873]
[2021-06-01 18:51:05,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917242873] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:05,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [511009439]
[2021-06-01 18:51:05,470 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 63 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:05,497 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:51:05,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:05,498 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:51:05,498 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:05,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,665 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:51:05,670 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:05,675 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:51:05,680 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,684 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,684 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:51:05,689 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,693 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:05,694 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,699 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,702 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:05,703 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,707 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:51:05,712 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,716 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:51:05,721 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:05,725 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,730 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,734 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,738 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,739 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:51:05,743 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:05,748 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:05,753 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,757 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,763 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,766 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,767 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,771 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:51:05,771 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:51:05,776 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,779 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:51:05,780 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,785 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,788 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:05,789 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,793 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,793 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,798 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:05,802 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:51:05,806 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:51:05,811 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,814 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:05,815 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,818 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:51:05,819 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:05,823 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:05,993 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40
[2021-06-01 18:51:05,994 INFO L628 ElimStorePlain]: treesize reduction 373, result has 34.3 percent of original size
[2021-06-01 18:51:05,995 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:51:05,996 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1873, output treesize:195
[2021-06-01 18:51:06,313 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46
[2021-06-01 18:51:06,487 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38
[2021-06-01 18:51:06,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:06,690 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [511009439] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:06,691 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:06,691 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:51:06,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162054207]
[2021-06-01 18:51:06,691 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:51:06,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:06,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:51:06,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:51:06,691 INFO L87 Difference]: Start difference. First operand 390 states and 1211 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:07,339 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71
[2021-06-01 18:51:07,817 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84
[2021-06-01 18:51:08,225 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62
[2021-06-01 18:51:08,669 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79
[2021-06-01 18:51:08,844 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58
[2021-06-01 18:51:09,287 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83
[2021-06-01 18:51:09,528 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70
[2021-06-01 18:51:09,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:09,581 INFO L93 Difference]: Finished difference Result 800 states and 2252 transitions.
[2021-06-01 18:51:09,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:51:09,581 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:09,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:09,582 INFO L225 Difference]: With dead ends: 800
[2021-06-01 18:51:09,582 INFO L226 Difference]: Without dead ends: 728
[2021-06-01 18:51:09,582 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 3181.0ms TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:51:09,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states.
[2021-06-01 18:51:09,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 395.
[2021-06-01 18:51:09,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 3.1269035532994924) internal successors, (1232), 394 states have internal predecessors, (1232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 1232 transitions.
[2021-06-01 18:51:09,587 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 1232 transitions. Word has length 20
[2021-06-01 18:51:09,587 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:09,587 INFO L482 AbstractCegarLoop]: Abstraction has 395 states and 1232 transitions.
[2021-06-01 18:51:09,587 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 1232 transitions.
[2021-06-01 18:51:09,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:09,588 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:09,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:09,788 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 63 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5319
[2021-06-01 18:51:09,789 INFO L430 AbstractCegarLoop]: === Iteration 185 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:09,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:09,789 INFO L82 PathProgramCache]: Analyzing trace with hash 169929870, now seen corresponding path program 36 times
[2021-06-01 18:51:09,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:09,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533630797]
[2021-06-01 18:51:09,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:09,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:09,929 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:09,929 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:09,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533630797]
[2021-06-01 18:51:09,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533630797] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:09,929 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214616876]
[2021-06-01 18:51:09,929 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 64 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:09,956 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:51:09,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:09,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:09,957 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:10,494 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:10,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:10,495 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:10,815 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98
[2021-06-01 18:51:10,816 INFO L628 ElimStorePlain]: treesize reduction 203, result has 64.1 percent of original size
[2021-06-01 18:51:10,820 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:10,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:10,821 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:10,962 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:51:10,962 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:10,966 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:10,967 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:10,967 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,106 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:51:11,107 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:11,112 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,112 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:11,113 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,117 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:11,119 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,356 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81
[2021-06-01 18:51:11,356 INFO L628 ElimStorePlain]: treesize reduction 26, result has 91.9 percent of original size
[2021-06-01 18:51:11,360 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,361 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:11,362 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,365 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:11,366 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,475 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:51:11,476 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:11,480 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,481 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,481 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:11,482 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,486 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:11,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:51:11,487 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:11,588 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:51:11,588 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:11,594 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:51:11,594 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:573, output treesize:232
[2021-06-01 18:51:11,789 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84
[2021-06-01 18:51:12,020 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85
[2021-06-01 18:51:12,309 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 83
[2021-06-01 18:51:12,566 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_745, v_prenex_737, v_prenex_739, array_6, v_prenex_741, v_prenex_743], 1=[v_prenex_736, v_prenex_738, array_3, v_prenex_740, v_prenex_742, v_prenex_744]}
[2021-06-01 18:51:12,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:12,575 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:12,583 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,590 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:12,591 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,598 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:12,598 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,605 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:12,606 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,612 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:12,613 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:12,933 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 87
[2021-06-01 18:51:12,933 INFO L628 ElimStorePlain]: treesize reduction 1086, result has 16.4 percent of original size
[2021-06-01 18:51:12,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:12,939 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:13,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:51:13,024 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:13,029 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,166 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73
[2021-06-01 18:51:13,167 INFO L628 ElimStorePlain]: treesize reduction 19, result has 90.1 percent of original size
[2021-06-01 18:51:13,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:13,172 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,234 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:13,238 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:13,239 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,298 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:13,301 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:13,302 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:13,359 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_736 vanished before elimination
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_738 vanished before elimination
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_740 vanished before elimination
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_742 vanished before elimination
[2021-06-01 18:51:13,359 INFO L518 ElimStorePlain]: Eliminatee v_prenex_744 vanished before elimination
[2021-06-01 18:51:13,361 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:51:13,361 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1495, output treesize:107
[2021-06-01 18:51:13,495 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:13,495 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214616876] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:13,495 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:13,495 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:13,496 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811291228]
[2021-06-01 18:51:13,496 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:13,496 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:13,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:13,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:13,496 INFO L87 Difference]: Start difference. First operand 395 states and 1232 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:14,271 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 119
[2021-06-01 18:51:14,829 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 130
[2021-06-01 18:51:15,675 WARN L205 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 141
[2021-06-01 18:51:15,890 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68
[2021-06-01 18:51:16,092 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71
[2021-06-01 18:51:16,252 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62
[2021-06-01 18:51:16,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:16,271 INFO L93 Difference]: Finished difference Result 616 states and 1820 transitions.
[2021-06-01 18:51:16,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:51:16,271 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:16,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:16,272 INFO L225 Difference]: With dead ends: 616
[2021-06-01 18:51:16,272 INFO L226 Difference]: Without dead ends: 568
[2021-06-01 18:51:16,272 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3343.9ms TimeCoverageRelationStatistics Valid=127, Invalid=629, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:51:16,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states.
[2021-06-01 18:51:16,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 398.
[2021-06-01 18:51:16,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 3.123425692695214) internal successors, (1240), 397 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:16,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1240 transitions.
[2021-06-01 18:51:16,276 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1240 transitions. Word has length 20
[2021-06-01 18:51:16,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:16,276 INFO L482 AbstractCegarLoop]: Abstraction has 398 states and 1240 transitions.
[2021-06-01 18:51:16,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:16,276 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1240 transitions.
[2021-06-01 18:51:16,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:16,277 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:16,277 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:16,477 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5371,64 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:16,477 INFO L430 AbstractCegarLoop]: === Iteration 186 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:16,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:16,478 INFO L82 PathProgramCache]: Analyzing trace with hash -146181486, now seen corresponding path program 37 times
[2021-06-01 18:51:16,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:16,478 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865795220]
[2021-06-01 18:51:16,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:16,626 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:16,626 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:16,626 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865795220]
[2021-06-01 18:51:16,626 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865795220] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:16,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [456532416]
[2021-06-01 18:51:16,627 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 65 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:16,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:16,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:16,655 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:17,239 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,239 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:17,240 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,245 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,246 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:17,246 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,251 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,252 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,252 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:17,253 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,258 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,258 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,258 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:17,259 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,264 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,264 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:17,265 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:17,271 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,572 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65
[2021-06-01 18:51:17,573 INFO L628 ElimStorePlain]: treesize reduction 436, result has 41.5 percent of original size
[2021-06-01 18:51:17,576 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,577 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:17,578 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,581 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,582 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,582 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:17,583 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:17,587 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,705 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:51:17,706 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:17,709 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,710 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:17,711 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,715 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,715 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:17,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:17,716 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,719 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:17,720 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:17,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:17,819 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:51:17,819 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:895, output treesize:199
[2021-06-01 18:51:18,011 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70
[2021-06-01 18:51:18,328 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 77
[2021-06-01 18:51:18,527 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_768, v_prenex_770, array_6, v_prenex_760, v_prenex_762, v_prenex_764], 1=[v_prenex_767, v_prenex_769, v_prenex_759, array_3, v_prenex_761, v_prenex_763]}
[2021-06-01 18:51:18,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:18,533 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:18,777 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 71
[2021-06-01 18:51:18,777 INFO L628 ElimStorePlain]: treesize reduction 513, result has 31.2 percent of original size
[2021-06-01 18:51:18,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:18,782 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:18,872 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:18,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:18,876 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:18,964 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:18,964 INFO L518 ElimStorePlain]: Eliminatee v_prenex_760 vanished before elimination
[2021-06-01 18:51:18,964 INFO L518 ElimStorePlain]: Eliminatee v_prenex_762 vanished before elimination
[2021-06-01 18:51:18,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:18,969 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:19,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_767 vanished before elimination
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_769 vanished before elimination
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_759 vanished before elimination
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_761 vanished before elimination
[2021-06-01 18:51:19,064 INFO L518 ElimStorePlain]: Eliminatee v_prenex_763 vanished before elimination
[2021-06-01 18:51:19,067 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:51:19,067 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 18 variables, input treesize:753, output treesize:180
[2021-06-01 18:51:19,208 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35
[2021-06-01 18:51:19,413 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:19,413 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [456532416] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:19,413 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:19,413 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:19,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181859817]
[2021-06-01 18:51:19,414 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:19,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:19,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:19,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:19,414 INFO L87 Difference]: Start difference. First operand 398 states and 1240 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:19,882 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70
[2021-06-01 18:51:20,152 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 96
[2021-06-01 18:51:20,465 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 100
[2021-06-01 18:51:21,010 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 128
[2021-06-01 18:51:21,438 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 134
[2021-06-01 18:51:21,718 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2021-06-01 18:51:21,958 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2021-06-01 18:51:22,232 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85
[2021-06-01 18:51:22,528 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89
[2021-06-01 18:51:22,911 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79
[2021-06-01 18:51:23,213 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92
[2021-06-01 18:51:23,359 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70
[2021-06-01 18:51:23,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:23,480 INFO L93 Difference]: Finished difference Result 765 states and 2172 transitions.
[2021-06-01 18:51:23,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:51:23,480 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:23,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:23,481 INFO L225 Difference]: With dead ends: 765
[2021-06-01 18:51:23,481 INFO L226 Difference]: Without dead ends: 693
[2021-06-01 18:51:23,481 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 4504.2ms TimeCoverageRelationStatistics Valid=190, Invalid=932, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:51:23,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 693 states.
[2021-06-01 18:51:23,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 693 to 398.
[2021-06-01 18:51:23,486 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 3.123425692695214) internal successors, (1240), 397 states have internal predecessors, (1240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:23,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1240 transitions.
[2021-06-01 18:51:23,486 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1240 transitions. Word has length 20
[2021-06-01 18:51:23,486 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:23,486 INFO L482 AbstractCegarLoop]: Abstraction has 398 states and 1240 transitions.
[2021-06-01 18:51:23,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:23,486 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1240 transitions.
[2021-06-01 18:51:23,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:23,487 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:23,487 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:23,687 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 65 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5487
[2021-06-01 18:51:23,687 INFO L430 AbstractCegarLoop]: === Iteration 187 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:23,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:23,688 INFO L82 PathProgramCache]: Analyzing trace with hash 1265307084, now seen corresponding path program 38 times
[2021-06-01 18:51:23,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:23,688 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123519509]
[2021-06-01 18:51:23,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:23,876 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:23,876 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:23,876 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123519509]
[2021-06-01 18:51:23,876 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2123519509] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:23,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1144529389]
[2021-06-01 18:51:23,877 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 66 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:23,903 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:51:23,903 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:23,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:23,904 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:24,428 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,428 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:24,429 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:24,435 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,435 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:24,436 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:24,441 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:24,442 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:24,750 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 98
[2021-06-01 18:51:24,751 INFO L628 ElimStorePlain]: treesize reduction 123, result has 74.8 percent of original size
[2021-06-01 18:51:24,756 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,756 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:51:24,757 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:24,762 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,762 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:24,763 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:24,994 WARN L205 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87
[2021-06-01 18:51:24,994 INFO L628 ElimStorePlain]: treesize reduction 26, result has 91.7 percent of original size
[2021-06-01 18:51:24,998 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,999 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:24,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:25,000 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,004 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:25,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:25,005 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,114 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-06-01 18:51:25,114 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:25,118 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:25,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:25,119 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,227 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-06-01 18:51:25,227 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:25,231 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:25,232 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:25,232 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,337 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 75
[2021-06-01 18:51:25,338 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:25,342 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:25,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:25,343 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,446 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 71
[2021-06-01 18:51:25,447 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:25,453 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:51:25,453 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:573, output treesize:239
[2021-06-01 18:51:25,658 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85
[2021-06-01 18:51:25,870 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_790, v_prenex_792, array_6, v_prenex_794, v_prenex_796, v_prenex_798], 1=[v_prenex_789, array_3, v_prenex_791, v_prenex_793, v_prenex_795, v_prenex_797]}
[2021-06-01 18:51:25,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:25,879 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:25,887 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:25,895 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:25,903 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:25,911 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:25,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:25,918 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,285 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 86
[2021-06-01 18:51:26,286 INFO L628 ElimStorePlain]: treesize reduction 1337, result has 14.8 percent of original size
[2021-06-01 18:51:26,290 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:51:26,291 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,384 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:26,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:26,389 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,478 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:26,482 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:26,483 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,569 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:26,573 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:26,574 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,657 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:26,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:26,661 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:26,741 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:26,741 INFO L518 ElimStorePlain]: Eliminatee v_prenex_789 vanished before elimination
[2021-06-01 18:51:26,742 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:26,742 INFO L518 ElimStorePlain]: Eliminatee v_prenex_791 vanished before elimination
[2021-06-01 18:51:26,742 INFO L518 ElimStorePlain]: Eliminatee v_prenex_793 vanished before elimination
[2021-06-01 18:51:26,742 INFO L518 ElimStorePlain]: Eliminatee v_prenex_795 vanished before elimination
[2021-06-01 18:51:26,742 INFO L518 ElimStorePlain]: Eliminatee v_prenex_797 vanished before elimination
[2021-06-01 18:51:26,744 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:51:26,744 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1685, output treesize:144
[2021-06-01 18:51:26,883 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:51:27,079 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 38
[2021-06-01 18:51:27,281 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:27,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1144529389] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:27,281 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:27,281 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:27,281 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795125875]
[2021-06-01 18:51:27,281 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:27,281 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:27,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:27,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:27,282 INFO L87 Difference]: Start difference. First operand 398 states and 1240 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:27,712 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57
[2021-06-01 18:51:28,039 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 122
[2021-06-01 18:51:28,380 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61
[2021-06-01 18:51:28,754 WARN L205 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79
[2021-06-01 18:51:29,078 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69
[2021-06-01 18:51:29,613 WARN L205 SmtUtils]: Spent 491.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93
[2021-06-01 18:51:30,030 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87
[2021-06-01 18:51:30,648 WARN L205 SmtUtils]: Spent 521.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 101
[2021-06-01 18:51:30,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:30,715 INFO L93 Difference]: Finished difference Result 781 states and 2250 transitions.
[2021-06-01 18:51:30,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:51:30,715 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:30,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:30,716 INFO L225 Difference]: With dead ends: 781
[2021-06-01 18:51:30,716 INFO L226 Difference]: Without dead ends: 739
[2021-06-01 18:51:30,716 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 3886.1ms TimeCoverageRelationStatistics Valid=145, Invalid=667, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:51:30,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 739 states.
[2021-06-01 18:51:30,724 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 739 to 401.
[2021-06-01 18:51:30,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 3.1375) internal successors, (1255), 400 states have internal predecessors, (1255), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:30,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 1255 transitions.
[2021-06-01 18:51:30,725 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 1255 transitions. Word has length 20
[2021-06-01 18:51:30,725 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:30,725 INFO L482 AbstractCegarLoop]: Abstraction has 401 states and 1255 transitions.
[2021-06-01 18:51:30,725 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 1255 transitions.
[2021-06-01 18:51:30,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:30,726 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:30,726 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:30,926 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 66 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5655
[2021-06-01 18:51:30,926 INFO L430 AbstractCegarLoop]: === Iteration 188 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:30,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:30,927 INFO L82 PathProgramCache]: Analyzing trace with hash -2040599664, now seen corresponding path program 39 times
[2021-06-01 18:51:30,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:30,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429220889]
[2021-06-01 18:51:30,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:30,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:31,168 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:31,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:31,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429220889]
[2021-06-01 18:51:31,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429220889] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:31,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1180991894]
[2021-06-01 18:51:31,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 67 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:31,203 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:51:31,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:31,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:31,205 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:31,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:31,729 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:31,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:31,730 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:31,735 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:31,735 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:31,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:31,736 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:31,741 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:31,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:31,742 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,058 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 101
[2021-06-01 18:51:32,058 INFO L628 ElimStorePlain]: treesize reduction 167, result has 69.3 percent of original size
[2021-06-01 18:51:32,063 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,064 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:32,065 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,069 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,070 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:32,071 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,211 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:51:32,211 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:32,216 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,216 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:32,217 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,222 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:32,223 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,455 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83
[2021-06-01 18:51:32,455 INFO L628 ElimStorePlain]: treesize reduction 35, result has 88.6 percent of original size
[2021-06-01 18:51:32,459 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,460 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:32,460 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,569 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-06-01 18:51:32,570 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:32,573 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:32,574 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,681 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 75
[2021-06-01 18:51:32,681 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:32,685 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:32,686 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:32,686 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:32,789 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 71
[2021-06-01 18:51:32,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:32,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:51:32,795 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:573, output treesize:239
[2021-06-01 18:51:32,996 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 85
[2021-06-01 18:51:33,197 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_813, v_prenex_815, v_prenex_817, v_prenex_819, array_6, v_prenex_821], 1=[v_prenex_812, v_prenex_814, array_3, v_prenex_816, v_prenex_818, v_prenex_820]}
[2021-06-01 18:51:33,205 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:33,206 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:33,214 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:33,222 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:33,232 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,240 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:33,241 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,248 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:33,249 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,630 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 88
[2021-06-01 18:51:33,631 INFO L628 ElimStorePlain]: treesize reduction 1334, result has 15.2 percent of original size
[2021-06-01 18:51:33,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:33,636 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,730 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:33,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:33,736 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,826 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:33,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:33,832 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:33,921 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:33,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:33,926 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:34,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:34,019 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:51:34,020 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:34,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee v_prenex_812 vanished before elimination
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee v_prenex_814 vanished before elimination
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee v_prenex_816 vanished before elimination
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee v_prenex_818 vanished before elimination
[2021-06-01 18:51:34,102 INFO L518 ElimStorePlain]: Eliminatee v_prenex_820 vanished before elimination
[2021-06-01 18:51:34,104 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:51:34,105 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1685, output treesize:144
[2021-06-01 18:51:34,244 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:51:34,388 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33
[2021-06-01 18:51:34,632 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:34,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1180991894] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:34,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:34,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:34,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108287089]
[2021-06-01 18:51:34,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:34,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:34,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:34,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:34,633 INFO L87 Difference]: Start difference. First operand 401 states and 1255 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:35,106 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 65
[2021-06-01 18:51:35,487 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 139
[2021-06-01 18:51:35,814 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78
[2021-06-01 18:51:36,266 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88
[2021-06-01 18:51:36,477 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64
[2021-06-01 18:51:37,011 WARN L205 SmtUtils]: Spent 499.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 102
[2021-06-01 18:51:37,366 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70
[2021-06-01 18:51:37,956 WARN L205 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105
[2021-06-01 18:51:38,392 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83
[2021-06-01 18:51:38,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:38,425 INFO L93 Difference]: Finished difference Result 756 states and 2203 transitions.
[2021-06-01 18:51:38,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:51:38,425 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:38,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:38,426 INFO L225 Difference]: With dead ends: 756
[2021-06-01 18:51:38,426 INFO L226 Difference]: Without dead ends: 699
[2021-06-01 18:51:38,426 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 4327.6ms TimeCoverageRelationStatistics Valid=152, Invalid=718, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:51:38,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 699 states.
[2021-06-01 18:51:38,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 699 to 399.
[2021-06-01 18:51:38,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 399 states, 398 states have (on average 3.130653266331658) internal successors, (1246), 398 states have internal predecessors, (1246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:38,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 399 states to 399 states and 1246 transitions.
[2021-06-01 18:51:38,431 INFO L78 Accepts]: Start accepts. Automaton has 399 states and 1246 transitions. Word has length 20
[2021-06-01 18:51:38,431 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:38,431 INFO L482 AbstractCegarLoop]: Abstraction has 399 states and 1246 transitions.
[2021-06-01 18:51:38,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 399 states and 1246 transitions.
[2021-06-01 18:51:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:38,431 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:38,432 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:38,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 67 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5807
[2021-06-01 18:51:38,632 INFO L430 AbstractCegarLoop]: === Iteration 189 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:38,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:38,632 INFO L82 PathProgramCache]: Analyzing trace with hash -322665892, now seen corresponding path program 40 times
[2021-06-01 18:51:38,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:38,633 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1482394833]
[2021-06-01 18:51:38,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:38,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:38,816 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:38,817 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:38,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1482394833]
[2021-06-01 18:51:38,817 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1482394833] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:38,817 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111682077]
[2021-06-01 18:51:38,817 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 68 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:38,870 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:51:38,870 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:38,871 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:38,871 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:39,767 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,768 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:39,769 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:39,774 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,775 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,775 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:39,776 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:39,781 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,782 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:39,783 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:39,788 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,789 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,790 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:39,791 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:39,796 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,797 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:39,798 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:39,803 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:39,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:39,804 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,222 WARN L205 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79
[2021-06-01 18:51:40,222 INFO L628 ElimStorePlain]: treesize reduction 569, result has 44.4 percent of original size
[2021-06-01 18:51:40,227 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,227 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:40,228 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,233 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,233 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:40,234 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:40,240 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,552 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73
[2021-06-01 18:51:40,552 INFO L628 ElimStorePlain]: treesize reduction 31, result has 92.7 percent of original size
[2021-06-01 18:51:40,557 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,557 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:40,558 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,562 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:40,563 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,567 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:40,568 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,698 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2021-06-01 18:51:40,699 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:40,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:40,704 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:40,709 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:40,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:40,714 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:40,838 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 63
[2021-06-01 18:51:40,838 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:40,846 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:51:40,846 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1129, output treesize:279
[2021-06-01 18:51:41,073 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77
[2021-06-01 18:51:41,436 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_845, v_prenex_837, v_prenex_839, array_6, v_prenex_841, v_prenex_843], 1=[v_prenex_844, v_prenex_836, array_3, v_prenex_838, v_prenex_840, v_prenex_842]}
[2021-06-01 18:51:41,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:41,442 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:41,656 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 71
[2021-06-01 18:51:41,656 INFO L628 ElimStorePlain]: treesize reduction 460, result has 30.9 percent of original size
[2021-06-01 18:51:41,656 INFO L518 ElimStorePlain]: Eliminatee v_prenex_837 vanished before elimination
[2021-06-01 18:51:41,656 INFO L518 ElimStorePlain]: Eliminatee v_prenex_839 vanished before elimination
[2021-06-01 18:51:41,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:41,660 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:41,731 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:41,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:41,736 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:41,805 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:41,808 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:41,809 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:41,878 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee v_prenex_844 vanished before elimination
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee v_prenex_836 vanished before elimination
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee v_prenex_838 vanished before elimination
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee v_prenex_840 vanished before elimination
[2021-06-01 18:51:41,879 INFO L518 ElimStorePlain]: Eliminatee v_prenex_842 vanished before elimination
[2021-06-01 18:51:41,881 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:51:41,881 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 18 variables, input treesize:673, output treesize:145
[2021-06-01 18:51:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:42,071 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111682077] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:42,071 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:42,071 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:42,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611349370]
[2021-06-01 18:51:42,072 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:42,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:42,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:42,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:42,072 INFO L87 Difference]: Start difference. First operand 399 states and 1246 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:42,818 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101
[2021-06-01 18:51:43,179 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125
[2021-06-01 18:51:43,551 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128
[2021-06-01 18:51:43,844 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 116
[2021-06-01 18:51:44,037 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64
[2021-06-01 18:51:44,270 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74
[2021-06-01 18:51:44,515 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71
[2021-06-01 18:51:44,797 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81
[2021-06-01 18:51:44,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:44,844 INFO L93 Difference]: Finished difference Result 621 states and 1855 transitions.
[2021-06-01 18:51:44,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:51:44,844 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:44,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:44,845 INFO L225 Difference]: With dead ends: 621
[2021-06-01 18:51:44,845 INFO L226 Difference]: Without dead ends: 591
[2021-06-01 18:51:44,845 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3276.3ms TimeCoverageRelationStatistics Valid=144, Invalid=726, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:51:44,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states.
[2021-06-01 18:51:44,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 402.
[2021-06-01 18:51:44,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 3.1271820448877805) internal successors, (1254), 401 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:44,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1254 transitions.
[2021-06-01 18:51:44,850 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1254 transitions. Word has length 20
[2021-06-01 18:51:44,850 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:44,850 INFO L482 AbstractCegarLoop]: Abstraction has 402 states and 1254 transitions.
[2021-06-01 18:51:44,850 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:44,850 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1254 transitions.
[2021-06-01 18:51:44,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:44,851 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:44,851 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:45,051 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5935,68 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:45,051 INFO L430 AbstractCegarLoop]: === Iteration 190 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:45,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:45,051 INFO L82 PathProgramCache]: Analyzing trace with hash -638777248, now seen corresponding path program 41 times
[2021-06-01 18:51:45,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:45,051 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102247289]
[2021-06-01 18:51:45,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:45,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:45,307 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:45,307 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:45,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102247289]
[2021-06-01 18:51:45,307 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102247289] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:45,307 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522122865]
[2021-06-01 18:51:45,307 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 69 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:45,344 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:51:45,344 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:45,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:51:45,346 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:45,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:45,587 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,590 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:45,591 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,595 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:45,596 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:45,600 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:45,604 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:45,609 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,612 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:45,613 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:45,617 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,621 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:45,622 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts.
[2021-06-01 18:51:45,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:45,626 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,630 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:45,635 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,638 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:45,639 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:45,644 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:45,648 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,652 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:45,657 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,660 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:45,661 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,665 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,670 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,673 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:51:45,674 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,677 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,678 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:45,682 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,685 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:51:45,686 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:45,839 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39
[2021-06-01 18:51:45,839 INFO L628 ElimStorePlain]: treesize reduction 293, result has 38.7 percent of original size
[2021-06-01 18:51:45,840 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:51:45,840 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 1 variables, input treesize:967, output treesize:185
[2021-06-01 18:51:46,263 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40
[2021-06-01 18:51:46,419 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37
[2021-06-01 18:51:46,491 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:46,491 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522122865] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:46,491 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:46,491 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:51:46,491 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332539496]
[2021-06-01 18:51:46,492 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:51:46,492 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:46,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:51:46,492 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:51:46,492 INFO L87 Difference]: Start difference. First operand 402 states and 1254 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:47,272 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74
[2021-06-01 18:51:47,553 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73
[2021-06-01 18:51:47,876 WARN L205 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83
[2021-06-01 18:51:47,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:47,912 INFO L93 Difference]: Finished difference Result 621 states and 1849 transitions.
[2021-06-01 18:51:47,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:51:47,912 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:47,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:47,913 INFO L225 Difference]: With dead ends: 621
[2021-06-01 18:51:47,913 INFO L226 Difference]: Without dead ends: 606
[2021-06-01 18:51:47,913 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1930.3ms TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:51:47,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states.
[2021-06-01 18:51:47,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 402.
[2021-06-01 18:51:47,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 3.1271820448877805) internal successors, (1254), 401 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:47,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1254 transitions.
[2021-06-01 18:51:47,918 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1254 transitions. Word has length 20
[2021-06-01 18:51:47,918 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:47,918 INFO L482 AbstractCegarLoop]: Abstraction has 402 states and 1254 transitions.
[2021-06-01 18:51:47,918 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:47,918 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1254 transitions.
[2021-06-01 18:51:47,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:47,919 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:47,919 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:48,119 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 69 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6140
[2021-06-01 18:51:48,119 INFO L430 AbstractCegarLoop]: === Iteration 191 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:48,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1957469660, now seen corresponding path program 42 times
[2021-06-01 18:51:48,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:48,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [398582586]
[2021-06-01 18:51:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:48,305 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:48,305 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:48,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [398582586]
[2021-06-01 18:51:48,305 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [398582586] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:48,305 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1907701450]
[2021-06-01 18:51:48,305 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 70 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:48,339 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:51:48,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:51:48,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:48,341 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:48,913 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:48,914 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:48,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:48,915 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:48,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:48,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:48,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:48,922 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:48,927 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:48,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:48,928 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,196 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 95
[2021-06-01 18:51:49,196 INFO L628 ElimStorePlain]: treesize reduction 158, result has 69.1 percent of original size
[2021-06-01 18:51:49,201 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,202 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:51:49,203 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,208 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,208 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:49,209 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,319 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:51:49,319 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:49,324 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,325 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:49,326 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,330 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,330 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:49,331 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,517 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78
[2021-06-01 18:51:49,517 INFO L628 ElimStorePlain]: treesize reduction 22, result has 92.0 percent of original size
[2021-06-01 18:51:49,521 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:49,523 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,610 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:49,614 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,614 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:49,615 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:49,704 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:49,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:49,706 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:49,790 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:49,795 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:51:49,795 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:541, output treesize:219
[2021-06-01 18:51:49,970 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 79
[2021-06-01 18:51:50,567 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 33
[2021-06-01 18:51:50,772 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:50,773 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1907701450] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:50,773 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:50,773 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:50,773 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238351113]
[2021-06-01 18:51:50,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:50,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:50,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:50,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:50,773 INFO L87 Difference]: Start difference. First operand 402 states and 1254 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:51,430 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72
[2021-06-01 18:51:51,771 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 132
[2021-06-01 18:51:51,930 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75
[2021-06-01 18:51:52,187 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78
[2021-06-01 18:51:52,567 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83
[2021-06-01 18:51:52,848 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82
[2021-06-01 18:51:53,064 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65
[2021-06-01 18:51:53,485 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87
[2021-06-01 18:51:53,730 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71
[2021-06-01 18:51:53,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:51:53,771 INFO L93 Difference]: Finished difference Result 691 states and 2016 transitions.
[2021-06-01 18:51:53,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:51:53,772 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:51:53,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:51:53,772 INFO L225 Difference]: With dead ends: 691
[2021-06-01 18:51:53,773 INFO L226 Difference]: Without dead ends: 632
[2021-06-01 18:51:53,773 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 3396.8ms TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:51:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states.
[2021-06-01 18:51:53,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 402.
[2021-06-01 18:51:53,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 3.1271820448877805) internal successors, (1254), 401 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:53,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1254 transitions.
[2021-06-01 18:51:53,777 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1254 transitions. Word has length 20
[2021-06-01 18:51:53,777 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:51:53,777 INFO L482 AbstractCegarLoop]: Abstraction has 402 states and 1254 transitions.
[2021-06-01 18:51:53,778 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:53,778 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1254 transitions.
[2021-06-01 18:51:53,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:51:53,778 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:51:53,778 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:51:53,979 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 70 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6202
[2021-06-01 18:51:53,979 INFO L430 AbstractCegarLoop]: === Iteration 192 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:51:53,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:51:53,979 INFO L82 PathProgramCache]: Analyzing trace with hash 266313232, now seen corresponding path program 43 times
[2021-06-01 18:51:53,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:51:53,980 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253700116]
[2021-06-01 18:51:53,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:51:53,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:54,156 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:54,156 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:51:54,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253700116]
[2021-06-01 18:51:54,156 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253700116] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:54,156 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1399959460]
[2021-06-01 18:51:54,156 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 71 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:51:54,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:51:54,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:51:54,199 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:51:54,674 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 61
[2021-06-01 18:51:55,119 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,119 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:55,120 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,126 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,126 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,126 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:55,127 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,133 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,134 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,134 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:55,135 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,140 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,140 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:55,141 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,147 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,148 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,148 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:51:55,149 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,154 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:51:55,155 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,549 WARN L205 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82
[2021-06-01 18:51:55,549 INFO L628 ElimStorePlain]: treesize reduction 586, result has 43.8 percent of original size
[2021-06-01 18:51:55,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:55,555 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,560 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,560 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:55,561 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,566 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:55,567 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,729 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:51:55,729 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:55,734 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,734 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:51:55,735 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,740 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,740 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,740 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:55,741 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:55,745 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:55,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:55,747 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,027 WARN L205 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71
[2021-06-01 18:51:56,027 INFO L628 ElimStorePlain]: treesize reduction 24, result has 93.8 percent of original size
[2021-06-01 18:51:56,031 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:56,032 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:56,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:56,033 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,037 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:56,037 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:56,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:56,038 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,042 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:51:56,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:56,043 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,171 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2021-06-01 18:51:56,171 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:56,179 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:51:56,179 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:327
[2021-06-01 18:51:56,399 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94
[2021-06-01 18:51:56,666 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_888, array_6, v_prenex_884, v_prenex_886], 1=[array_0, v_prenex_883, v_prenex_885, v_prenex_887]}
[2021-06-01 18:51:56,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:56,673 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:56,679 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts.
[2021-06-01 18:51:56,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:51:56,686 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,692 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:56,693 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:51:56,700 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,705 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:51:56,706 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:56,964 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69
[2021-06-01 18:51:56,964 INFO L628 ElimStorePlain]: treesize reduction 867, result has 19.0 percent of original size
[2021-06-01 18:51:56,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:56,969 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:57,046 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:57,050 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:51:57,051 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:57,126 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:57,130 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:51:57,131 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:51:57,202 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:51:57,202 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:51:57,202 INFO L518 ElimStorePlain]: Eliminatee v_prenex_883 vanished before elimination
[2021-06-01 18:51:57,202 INFO L518 ElimStorePlain]: Eliminatee v_prenex_885 vanished before elimination
[2021-06-01 18:51:57,202 INFO L518 ElimStorePlain]: Eliminatee v_prenex_887 vanished before elimination
[2021-06-01 18:51:57,204 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:51:57,204 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:1193, output treesize:143
[2021-06-01 18:51:57,354 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35
[2021-06-01 18:51:57,513 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:51:57,513 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1399959460] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:51:57,513 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:51:57,513 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:51:57,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2074881946]
[2021-06-01 18:51:57,513 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:51:57,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:51:57,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:51:57,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:51:57,514 INFO L87 Difference]: Start difference. First operand 402 states and 1254 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:51:58,279 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 106
[2021-06-01 18:51:58,697 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 141
[2021-06-01 18:51:58,955 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82
[2021-06-01 18:51:59,364 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 85
[2021-06-01 18:51:59,585 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2021-06-01 18:51:59,864 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89
[2021-06-01 18:52:00,290 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92
[2021-06-01 18:52:00,664 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79
[2021-06-01 18:52:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:00,726 INFO L93 Difference]: Finished difference Result 710 states and 2068 transitions.
[2021-06-01 18:52:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:52:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:00,728 INFO L225 Difference]: With dead ends: 710
[2021-06-01 18:52:00,728 INFO L226 Difference]: Without dead ends: 638
[2021-06-01 18:52:00,728 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 119 ImplicationChecksByTransitivity, 3711.4ms TimeCoverageRelationStatistics Valid=175, Invalid=881, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:52:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states.
[2021-06-01 18:52:00,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 402.
[2021-06-01 18:52:00,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 401 states have (on average 3.1271820448877805) internal successors, (1254), 401 states have internal predecessors, (1254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:00,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 1254 transitions.
[2021-06-01 18:52:00,733 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 1254 transitions. Word has length 20
[2021-06-01 18:52:00,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:00,734 INFO L482 AbstractCegarLoop]: Abstraction has 402 states and 1254 transitions.
[2021-06-01 18:52:00,734 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:00,734 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 1254 transitions.
[2021-06-01 18:52:00,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:00,734 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:00,734 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:00,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 71 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6397
[2021-06-01 18:52:00,937 INFO L430 AbstractCegarLoop]: === Iteration 193 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:00,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:00,937 INFO L82 PathProgramCache]: Analyzing trace with hash -917231582, now seen corresponding path program 44 times
[2021-06-01 18:52:00,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:00,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039854113]
[2021-06-01 18:52:00,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:00,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:01,109 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:01,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:01,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039854113]
[2021-06-01 18:52:01,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039854113] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:01,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279391551]
[2021-06-01 18:52:01,110 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 72 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:01,136 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:52:01,137 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:01,137 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-06-01 18:52:01,138 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:01,679 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,679 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,679 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:01,680 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:01,685 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:01,685 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:01,690 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,691 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:01,692 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:01,710 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,711 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,711 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:01,713 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:01,718 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,718 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:01,719 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:01,724 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:01,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:01,724 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,067 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69
[2021-06-01 18:52:02,067 INFO L628 ElimStorePlain]: treesize reduction 419, result has 46.2 percent of original size
[2021-06-01 18:52:02,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,072 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:02,073 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,077 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,077 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:02,078 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,082 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:02,083 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,346 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64
[2021-06-01 18:52:02,347 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:52:02,351 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,351 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:02,352 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:02,357 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,361 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:02,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:02,362 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:02,489 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 60
[2021-06-01 18:52:02,489 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:02,496 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:02,496 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:276
[2021-06-01 18:52:02,833 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2021-06-01 18:52:03,065 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_899, v_prenex_911, v_prenex_901, v_prenex_913, v_prenex_925, v_prenex_903, v_prenex_915, v_prenex_905, v_prenex_917, v_prenex_907, array_6, v_prenex_909], 1=[v_prenex_910, v_prenex_900, v_prenex_912, array_0, v_prenex_902, v_prenex_914, v_prenex_904, v_prenex_916, v_prenex_906, v_prenex_918, v_prenex_908, v_prenex_898]}
[2021-06-01 18:52:03,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:03,075 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:03,517 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 92
[2021-06-01 18:52:03,518 INFO L628 ElimStorePlain]: treesize reduction 1050, result has 22.2 percent of original size
[2021-06-01 18:52:03,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:03,524 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:03,651 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:52:03,651 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:03,651 INFO L518 ElimStorePlain]: Eliminatee v_prenex_901 vanished before elimination
[2021-06-01 18:52:03,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:03,658 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:03,782 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:52:03,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:03,783 INFO L518 ElimStorePlain]: Eliminatee v_prenex_925 vanished before elimination
[2021-06-01 18:52:03,783 INFO L518 ElimStorePlain]: Eliminatee v_prenex_903 vanished before elimination
[2021-06-01 18:52:03,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:03,788 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:03,910 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:52:03,910 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:03,910 INFO L518 ElimStorePlain]: Eliminatee v_prenex_905 vanished before elimination
[2021-06-01 18:52:03,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:03,916 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:04,036 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 72
[2021-06-01 18:52:04,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:04,036 INFO L518 ElimStorePlain]: Eliminatee v_prenex_907 vanished before elimination
[2021-06-01 18:52:04,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:04,041 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:04,158 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2021-06-01 18:52:04,159 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:04,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:52:04,164 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:04,279 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:52:04,279 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:04,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_910 vanished before elimination
[2021-06-01 18:52:04,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_900 vanished before elimination
[2021-06-01 18:52:04,279 INFO L518 ElimStorePlain]: Eliminatee v_prenex_912 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_902 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_914 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_904 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_916 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_906 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_918 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_908 vanished before elimination
[2021-06-01 18:52:04,280 INFO L518 ElimStorePlain]: Eliminatee v_prenex_898 vanished before elimination
[2021-06-01 18:52:04,283 INFO L550 ElimStorePlain]: Start of recursive call 1: 12 dim-0 vars, 24 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:52:04,283 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 36 variables, input treesize:1357, output treesize:220
[2021-06-01 18:52:04,597 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37
[2021-06-01 18:52:04,747 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33
[2021-06-01 18:52:04,861 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:04,861 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279391551] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:04,861 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:04,861 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:04,861 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389723256]
[2021-06-01 18:52:04,861 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:04,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:04,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:04,862 INFO L87 Difference]: Start difference. First operand 402 states and 1254 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:05,341 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 59
[2021-06-01 18:52:05,782 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 120
[2021-06-01 18:52:06,033 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66
[2021-06-01 18:52:06,504 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 74
[2021-06-01 18:52:07,061 WARN L205 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 81
[2021-06-01 18:52:07,669 WARN L205 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 89
[2021-06-01 18:52:07,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:07,697 INFO L93 Difference]: Finished difference Result 676 states and 1993 transitions.
[2021-06-01 18:52:07,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:52:07,697 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:07,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:07,698 INFO L225 Difference]: With dead ends: 676
[2021-06-01 18:52:07,698 INFO L226 Difference]: Without dead ends: 661
[2021-06-01 18:52:07,698 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3544.4ms TimeCoverageRelationStatistics Valid=113, Invalid=589, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:52:07,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states.
[2021-06-01 18:52:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 404.
[2021-06-01 18:52:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 3.138957816377171) internal successors, (1265), 403 states have internal predecessors, (1265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:07,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1265 transitions.
[2021-06-01 18:52:07,703 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 1265 transitions. Word has length 20
[2021-06-01 18:52:07,703 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:07,703 INFO L482 AbstractCegarLoop]: Abstraction has 404 states and 1265 transitions.
[2021-06-01 18:52:07,703 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:07,703 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 1265 transitions.
[2021-06-01 18:52:07,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:07,704 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:07,704 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:07,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6621,72 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:07,905 INFO L430 AbstractCegarLoop]: === Iteration 194 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:07,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:07,905 INFO L82 PathProgramCache]: Analyzing trace with hash -2135866942, now seen corresponding path program 45 times
[2021-06-01 18:52:07,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:07,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422776571]
[2021-06-01 18:52:07,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:07,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:08,081 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:08,081 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:08,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422776571]
[2021-06-01 18:52:08,081 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [422776571] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:08,081 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [73021119]
[2021-06-01 18:52:08,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 73 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:08,108 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s)
[2021-06-01 18:52:08,108 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:08,109 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:52:08,109 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:08,639 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:08,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:08,640 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,026 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 114
[2021-06-01 18:52:09,027 INFO L628 ElimStorePlain]: treesize reduction 197, result has 68.5 percent of original size
[2021-06-01 18:52:09,033 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:09,034 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,214 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 110
[2021-06-01 18:52:09,214 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:09,219 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:09,220 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,409 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 106
[2021-06-01 18:52:09,409 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:09,415 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,415 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:09,417 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,422 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,422 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:09,423 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,593 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:52:09,593 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:09,598 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,599 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,599 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:09,600 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,605 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:09,606 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,874 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88
[2021-06-01 18:52:09,874 INFO L628 ElimStorePlain]: treesize reduction 42, result has 87.8 percent of original size
[2021-06-01 18:52:09,879 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,879 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,879 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:09,880 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:09,884 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:09,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:09,885 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,009 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:52:10,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:10,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:10,017 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:633, output treesize:283
[2021-06-01 18:52:10,239 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99
[2021-06-01 18:52:10,466 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_944, v_prenex_946, v_prenex_948, array_6, v_prenex_940, v_prenex_942], 1=[v_prenex_943, v_prenex_945, array_0, v_prenex_947, v_prenex_939, v_prenex_941]}
[2021-06-01 18:52:10,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:10,476 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,484 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:10,485 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,493 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:10,494 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,503 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:10,503 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,512 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:10,513 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:10,522 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:10,950 WARN L205 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 98
[2021-06-01 18:52:10,950 INFO L628 ElimStorePlain]: treesize reduction 1448, result has 15.1 percent of original size
[2021-06-01 18:52:10,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:10,956 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:11,067 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2021-06-01 18:52:11,067 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:11,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:11,074 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:11,182 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:52:11,182 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:11,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:11,189 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:11,290 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:52:11,290 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:11,295 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:11,296 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:11,393 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:11,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:52:11,398 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:11,495 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:11,495 INFO L518 ElimStorePlain]: Eliminatee v_prenex_943 vanished before elimination
[2021-06-01 18:52:11,495 INFO L518 ElimStorePlain]: Eliminatee v_prenex_945 vanished before elimination
[2021-06-01 18:52:11,496 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:52:11,496 INFO L518 ElimStorePlain]: Eliminatee v_prenex_947 vanished before elimination
[2021-06-01 18:52:11,496 INFO L518 ElimStorePlain]: Eliminatee v_prenex_939 vanished before elimination
[2021-06-01 18:52:11,496 INFO L518 ElimStorePlain]: Eliminatee v_prenex_941 vanished before elimination
[2021-06-01 18:52:11,498 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:52:11,499 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1859, output treesize:194
[2021-06-01 18:52:11,667 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:52:11,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:11,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [73021119] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:11,994 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:11,994 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:11,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889396337]
[2021-06-01 18:52:11,995 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:11,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:11,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:11,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:11,995 INFO L87 Difference]: Start difference. First operand 404 states and 1265 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:12,467 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65
[2021-06-01 18:52:12,871 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 129
[2021-06-01 18:52:13,175 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66
[2021-06-01 18:52:13,623 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 73
[2021-06-01 18:52:14,063 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 81
[2021-06-01 18:52:14,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:14,097 INFO L93 Difference]: Finished difference Result 703 states and 2083 transitions.
[2021-06-01 18:52:14,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:52:14,097 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:14,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:14,098 INFO L225 Difference]: With dead ends: 703
[2021-06-01 18:52:14,098 INFO L226 Difference]: Without dead ends: 688
[2021-06-01 18:52:14,099 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 2616.4ms TimeCoverageRelationStatistics Valid=105, Invalid=545, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:52:14,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states.
[2021-06-01 18:52:14,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 407.
[2021-06-01 18:52:14,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 407 states, 406 states have (on average 3.1527093596059115) internal successors, (1280), 406 states have internal predecessors, (1280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:14,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 407 states to 407 states and 1280 transitions.
[2021-06-01 18:52:14,104 INFO L78 Accepts]: Start accepts. Automaton has 407 states and 1280 transitions. Word has length 20
[2021-06-01 18:52:14,104 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:14,104 INFO L482 AbstractCegarLoop]: Abstraction has 407 states and 1280 transitions.
[2021-06-01 18:52:14,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:14,104 INFO L276 IsEmpty]: Start isEmpty. Operand 407 states and 1280 transitions.
[2021-06-01 18:52:14,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:14,104 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:14,104 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:14,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6753,73 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:14,305 INFO L430 AbstractCegarLoop]: === Iteration 195 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:14,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:14,305 INFO L82 PathProgramCache]: Analyzing trace with hash 71828966, now seen corresponding path program 46 times
[2021-06-01 18:52:14,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:14,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760948164]
[2021-06-01 18:52:14,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:14,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:14,460 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:14,460 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:14,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760948164]
[2021-06-01 18:52:14,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760948164] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:14,460 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689784252]
[2021-06-01 18:52:14,460 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 74 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:14,487 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:52:14,487 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:14,488 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:52:14,488 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:15,048 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:15,050 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,378 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104
[2021-06-01 18:52:15,378 INFO L628 ElimStorePlain]: treesize reduction 209, result has 64.6 percent of original size
[2021-06-01 18:52:15,383 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,384 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,384 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:15,385 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,389 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:15,391 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,537 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:52:15,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:15,542 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,542 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:15,543 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,548 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:52:15,550 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,682 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 93
[2021-06-01 18:52:15,683 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:15,687 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,688 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:15,689 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,693 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:15,694 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,801 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:52:15,802 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:15,806 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:15,807 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:15,914 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 80
[2021-06-01 18:52:15,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:15,918 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:15,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:15,919 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,028 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:52:16,028 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:16,034 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:16,034 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:597, output treesize:242
[2021-06-01 18:52:16,232 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90
[2021-06-01 18:52:16,542 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_965, v_prenex_967, v_prenex_969, array_6, v_prenex_971, v_prenex_963], 1=[v_prenex_966, v_prenex_968, array_0, v_prenex_970, v_prenex_962, v_prenex_964]}
[2021-06-01 18:52:16,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:16,554 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:16,573 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,582 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:16,583 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,594 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:16,596 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:16,608 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:16,619 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:16,620 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,017 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 95
[2021-06-01 18:52:17,017 INFO L628 ElimStorePlain]: treesize reduction 1299, result has 17.5 percent of original size
[2021-06-01 18:52:17,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:52:17,023 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,134 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2021-06-01 18:52:17,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:17,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:17,140 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,248 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:52:17,248 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:17,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:17,254 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,258 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:17,259 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,348 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:17,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:17,353 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,441 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:17,445 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:17,446 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:17,531 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee v_prenex_966 vanished before elimination
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee v_prenex_968 vanished before elimination
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee v_prenex_970 vanished before elimination
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee v_prenex_962 vanished before elimination
[2021-06-01 18:52:17,531 INFO L518 ElimStorePlain]: Eliminatee v_prenex_964 vanished before elimination
[2021-06-01 18:52:17,534 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:52:17,534 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1703, output treesize:140
[2021-06-01 18:52:17,678 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:52:17,936 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35
[2021-06-01 18:52:18,094 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:18,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689784252] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:18,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:18,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:18,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [739751714]
[2021-06-01 18:52:18,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:18,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:18,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:18,095 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:18,096 INFO L87 Difference]: Start difference. First operand 407 states and 1280 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:18,561 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70
[2021-06-01 18:52:18,961 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129
[2021-06-01 18:52:19,209 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75
[2021-06-01 18:52:19,584 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66
[2021-06-01 18:52:20,026 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 87
[2021-06-01 18:52:20,519 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77
[2021-06-01 18:52:20,981 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 90
[2021-06-01 18:52:21,461 WARN L205 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 94
[2021-06-01 18:52:21,596 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61
[2021-06-01 18:52:22,011 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84
[2021-06-01 18:52:22,524 WARN L205 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 97
[2021-06-01 18:52:22,674 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64
[2021-06-01 18:52:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:22,737 INFO L93 Difference]: Finished difference Result 960 states and 2717 transitions.
[2021-06-01 18:52:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:52:22,737 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:22,738 INFO L225 Difference]: With dead ends: 960
[2021-06-01 18:52:22,738 INFO L226 Difference]: Without dead ends: 888
[2021-06-01 18:52:22,738 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 5069.9ms TimeCoverageRelationStatistics Valid=211, Invalid=979, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:52:22,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states.
[2021-06-01 18:52:22,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 408.
[2021-06-01 18:52:22,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 3.152334152334152) internal successors, (1283), 407 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:22,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 1283 transitions.
[2021-06-01 18:52:22,744 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 1283 transitions. Word has length 20
[2021-06-01 18:52:22,744 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:22,744 INFO L482 AbstractCegarLoop]: Abstraction has 408 states and 1283 transitions.
[2021-06-01 18:52:22,744 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:22,744 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 1283 transitions.
[2021-06-01 18:52:22,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:22,745 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:22,745 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:22,945 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6881,74 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:22,945 INFO L430 AbstractCegarLoop]: === Iteration 196 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:22,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:22,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1115297082, now seen corresponding path program 47 times
[2021-06-01 18:52:22,946 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:22,946 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900826572]
[2021-06-01 18:52:22,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:22,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:23,161 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:23,161 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:23,161 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900826572]
[2021-06-01 18:52:23,161 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900826572] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:23,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1226506115]
[2021-06-01 18:52:23,162 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 75 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:23,192 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:52:23,192 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:23,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-06-01 18:52:23,193 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:23,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:52:23,359 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,364 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,369 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,374 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,378 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,379 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,383 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,384 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,389 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:23,394 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:23,399 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,404 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:52:23,405 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,410 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,410 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:23,415 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,420 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,425 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,430 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,434 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:23,435 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,446 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:52:23,447 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,451 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:23,452 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,456 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:23,457 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,462 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:23,467 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,470 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:52:23,471 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:52:23,476 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:23,481 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,485 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:52:23,486 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,490 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,494 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:52:23,495 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,500 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,504 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,505 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,509 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:23,509 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:52:23,514 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,517 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:52:23,518 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,522 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:52:23,522 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:52:23,527 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,531 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:23,531 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:52:23,535 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:23,718 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40
[2021-06-01 18:52:23,718 INFO L628 ElimStorePlain]: treesize reduction 413, result has 33.7 percent of original size
[2021-06-01 18:52:23,720 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:52:23,720 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1981, output treesize:210
[2021-06-01 18:52:24,029 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37
[2021-06-01 18:52:24,270 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 37
[2021-06-01 18:52:24,414 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 35
[2021-06-01 18:52:24,543 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:24,544 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1226506115] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:24,544 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:24,544 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:52:24,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819365203]
[2021-06-01 18:52:24,544 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:52:24,544 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:24,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:52:24,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:52:24,544 INFO L87 Difference]: Start difference. First operand 408 states and 1283 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:25,203 WARN L205 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68
[2021-06-01 18:52:25,487 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66
[2021-06-01 18:52:26,006 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78
[2021-06-01 18:52:26,146 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54
[2021-06-01 18:52:26,538 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 87
[2021-06-01 18:52:26,917 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81
[2021-06-01 18:52:27,060 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57
[2021-06-01 18:52:27,529 WARN L205 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 97
[2021-06-01 18:52:27,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:27,569 INFO L93 Difference]: Finished difference Result 831 states and 2371 transitions.
[2021-06-01 18:52:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:52:27,569 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:27,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:27,570 INFO L225 Difference]: With dead ends: 831
[2021-06-01 18:52:27,570 INFO L226 Difference]: Without dead ends: 801
[2021-06-01 18:52:27,570 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 95 ImplicationChecksByTransitivity, 3557.8ms TimeCoverageRelationStatistics Valid=169, Invalid=823, Unknown=0, NotChecked=0, Total=992
[2021-06-01 18:52:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 801 states.
[2021-06-01 18:52:27,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 801 to 406.
[2021-06-01 18:52:27,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 3.1382716049382715) internal successors, (1271), 405 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:27,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1271 transitions.
[2021-06-01 18:52:27,576 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1271 transitions. Word has length 20
[2021-06-01 18:52:27,576 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:27,576 INFO L482 AbstractCegarLoop]: Abstraction has 406 states and 1271 transitions.
[2021-06-01 18:52:27,576 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:27,576 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1271 transitions.
[2021-06-01 18:52:27,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:27,577 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:27,577 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:27,777 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 75 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7050
[2021-06-01 18:52:27,777 INFO L430 AbstractCegarLoop]: === Iteration 197 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:27,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:27,778 INFO L82 PathProgramCache]: Analyzing trace with hash -82608552, now seen corresponding path program 48 times
[2021-06-01 18:52:27,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:27,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998708749]
[2021-06-01 18:52:27,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:27,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:27,958 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:27,958 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:27,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998708749]
[2021-06-01 18:52:27,958 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998708749] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:27,958 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [987247495]
[2021-06-01 18:52:27,958 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 76 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:27,985 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:52:27,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:27,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:52:27,987 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:28,542 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,542 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,543 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:28,543 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,548 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,549 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:28,550 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,555 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:28,556 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,560 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,561 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:28,562 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,566 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,567 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:28,568 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,572 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:28,573 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,949 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73
[2021-06-01 18:52:28,949 INFO L628 ElimStorePlain]: treesize reduction 496, result has 44.3 percent of original size
[2021-06-01 18:52:28,953 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,954 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:28,955 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,959 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,959 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:28,961 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:28,964 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:28,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:52:28,966 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:29,260 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69
[2021-06-01 18:52:29,260 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:52:29,265 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:29,265 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:29,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:29,266 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:29,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:29,270 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:29,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:29,271 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:29,275 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:29,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:29,276 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:29,522 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62
[2021-06-01 18:52:29,522 INFO L628 ElimStorePlain]: treesize reduction 33, result has 89.5 percent of original size
[2021-06-01 18:52:29,529 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:29,529 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:275
[2021-06-01 18:52:29,754 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98
[2021-06-01 18:52:30,162 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 102
[2021-06-01 18:52:30,409 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_999, v_prenex_991, v_prenex_1001, array_6, v_prenex_993, v_prenex_995, v_prenex_997], 1=[v_prenex_998, array_0, v_prenex_1000, v_prenex_990, v_prenex_992, v_prenex_994, v_prenex_996]}
[2021-06-01 18:52:30,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:52:30,420 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2021-06-01 18:52:30,430 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:52:30,441 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,450 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13
[2021-06-01 18:52:30,452 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:30,462 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:52:30,472 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:30,958 WARN L205 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 106
[2021-06-01 18:52:30,959 INFO L628 ElimStorePlain]: treesize reduction 1613, result has 16.2 percent of original size
[2021-06-01 18:52:30,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:30,965 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,091 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 101
[2021-06-01 18:52:31,092 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:31,098 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,103 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:31,103 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,213 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2021-06-01 18:52:31,213 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:31,219 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,319 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,324 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:31,325 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,424 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:31,430 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,527 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:31,532 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:31,625 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_998 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1000 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_990 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_992 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_994 vanished before elimination
[2021-06-01 18:52:31,625 INFO L518 ElimStorePlain]: Eliminatee v_prenex_996 vanished before elimination
[2021-06-01 18:52:31,627 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:52:31,627 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:175
[2021-06-01 18:52:31,790 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:52:31,949 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:52:32,041 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:32,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [987247495] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:32,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:32,041 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:32,041 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849764785]
[2021-06-01 18:52:32,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:32,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:32,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:32,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:32,042 INFO L87 Difference]: Start difference. First operand 406 states and 1271 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:32,534 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74
[2021-06-01 18:52:32,973 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 138
[2021-06-01 18:52:33,653 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 182
[2021-06-01 18:52:33,812 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68
[2021-06-01 18:52:34,089 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88
[2021-06-01 18:52:34,275 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72
[2021-06-01 18:52:34,571 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90
[2021-06-01 18:52:34,807 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 75
[2021-06-01 18:52:35,107 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95
[2021-06-01 18:52:35,558 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97
[2021-06-01 18:52:35,700 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69
[2021-06-01 18:52:35,963 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82
[2021-06-01 18:52:36,026 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:36,026 INFO L93 Difference]: Finished difference Result 749 states and 2178 transitions.
[2021-06-01 18:52:36,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:52:36,026 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:36,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:36,027 INFO L225 Difference]: With dead ends: 749
[2021-06-01 18:52:36,027 INFO L226 Difference]: Without dead ends: 677
[2021-06-01 18:52:36,027 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 4635.6ms TimeCoverageRelationStatistics Valid=182, Invalid=940, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:52:36,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 677 states.
[2021-06-01 18:52:36,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 677 to 406.
[2021-06-01 18:52:36,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 406 states, 405 states have (on average 3.1382716049382715) internal successors, (1271), 405 states have internal predecessors, (1271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:36,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 1271 transitions.
[2021-06-01 18:52:36,032 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 1271 transitions. Word has length 20
[2021-06-01 18:52:36,032 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:36,032 INFO L482 AbstractCegarLoop]: Abstraction has 406 states and 1271 transitions.
[2021-06-01 18:52:36,032 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:36,032 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 1271 transitions.
[2021-06-01 18:52:36,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:36,033 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:36,033 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:36,233 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7095,76 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:36,233 INFO L430 AbstractCegarLoop]: === Iteration 198 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:36,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:36,234 INFO L82 PathProgramCache]: Analyzing trace with hash 213400338, now seen corresponding path program 49 times
[2021-06-01 18:52:36,234 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:36,234 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917310535]
[2021-06-01 18:52:36,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:36,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:36,408 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:36,408 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:36,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917310535]
[2021-06-01 18:52:36,408 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917310535] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:36,408 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962932423]
[2021-06-01 18:52:36,408 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 77 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:36,446 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:52:36,447 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:37,087 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,087 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,087 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:37,088 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,094 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,094 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:37,095 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,101 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,101 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:37,102 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,108 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,108 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:37,109 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,114 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,115 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:37,116 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:37,122 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,464 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73
[2021-06-01 18:52:37,464 INFO L628 ElimStorePlain]: treesize reduction 446, result has 45.7 percent of original size
[2021-06-01 18:52:37,468 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,469 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,469 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:37,470 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,474 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,475 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,475 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:37,476 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,480 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,480 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:37,481 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,737 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65
[2021-06-01 18:52:37,738 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:52:37,742 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,742 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:37,743 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,747 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,747 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:37,748 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,752 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:37,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:37,753 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:37,883 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:52:37,883 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:37,890 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:37,890 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:282
[2021-06-01 18:52:38,112 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 99
[2021-06-01 18:52:38,369 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 99
[2021-06-01 18:52:38,640 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1020, v_prenex_1012, array_6, v_prenex_1014, v_prenex_1016, v_prenex_1018], 1=[array_0, v_prenex_1011, v_prenex_1013, v_prenex_1015, v_prenex_1017, v_prenex_1019]}
[2021-06-01 18:52:38,649 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:52:38,650 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:38,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:38,660 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:38,668 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:38,669 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:38,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:38,679 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:38,688 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:38,689 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:38,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:38,698 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,161 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 102
[2021-06-01 18:52:39,161 INFO L628 ElimStorePlain]: treesize reduction 1440, result has 17.4 percent of original size
[2021-06-01 18:52:39,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:39,167 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,298 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2021-06-01 18:52:39,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:39,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:39,305 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,310 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:39,310 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,414 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:52:39,414 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:39,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:52:39,420 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,521 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:52:39,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:39,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:39,527 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,623 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:39,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:39,628 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:39,720 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1011 vanished before elimination
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1013 vanished before elimination
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1015 vanished before elimination
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1017 vanished before elimination
[2021-06-01 18:52:39,720 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1019 vanished before elimination
[2021-06-01 18:52:39,730 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:52:39,730 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1893, output treesize:198
[2021-06-01 18:52:39,905 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:52:40,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:40,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962932423] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:40,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:40,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:40,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433951216]
[2021-06-01 18:52:40,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:40,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:40,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:40,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:40,128 INFO L87 Difference]: Start difference. First operand 406 states and 1271 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:40,989 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 131
[2021-06-01 18:52:41,611 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 138
[2021-06-01 18:52:42,193 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66
[2021-06-01 18:52:42,384 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60
[2021-06-01 18:52:42,709 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 72
[2021-06-01 18:52:42,911 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61
[2021-06-01 18:52:43,234 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74
[2021-06-01 18:52:43,626 WARN L205 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83
[2021-06-01 18:52:43,847 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68
[2021-06-01 18:52:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:43,910 INFO L93 Difference]: Finished difference Result 771 states and 2234 transitions.
[2021-06-01 18:52:43,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:52:43,911 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:43,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:43,912 INFO L225 Difference]: With dead ends: 771
[2021-06-01 18:52:43,912 INFO L226 Difference]: Without dead ends: 726
[2021-06-01 18:52:43,912 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 4291.7ms TimeCoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:52:43,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states.
[2021-06-01 18:52:43,916 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 404.
[2021-06-01 18:52:43,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 3.1364764267990073) internal successors, (1264), 403 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:43,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 1264 transitions.
[2021-06-01 18:52:43,917 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 1264 transitions. Word has length 20
[2021-06-01 18:52:43,917 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:43,917 INFO L482 AbstractCegarLoop]: Abstraction has 404 states and 1264 transitions.
[2021-06-01 18:52:43,917 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:43,917 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 1264 transitions.
[2021-06-01 18:52:43,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:43,918 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:43,918 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:44,118 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7271,77 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:44,118 INFO L430 AbstractCegarLoop]: === Iteration 199 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:44,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:44,118 INFO L82 PathProgramCache]: Analyzing trace with hash 937121676, now seen corresponding path program 50 times
[2021-06-01 18:52:44,119 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:44,119 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565948701]
[2021-06-01 18:52:44,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:44,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:44,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:44,326 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:44,326 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565948701]
[2021-06-01 18:52:44,327 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565948701] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:44,327 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2128106978]
[2021-06-01 18:52:44,327 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 78 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:44,353 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:52:44,353 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:44,353 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:52:44,354 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:44,812 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:44,813 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:44,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:44,814 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:44,819 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:44,820 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:44,825 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:44,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:52:44,827 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,069 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 90
[2021-06-01 18:52:45,070 INFO L628 ElimStorePlain]: treesize reduction 107, result has 73.0 percent of original size
[2021-06-01 18:52:45,074 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,075 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:45,076 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,080 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:45,081 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,184 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 85
[2021-06-01 18:52:45,184 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:45,188 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,189 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,189 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:45,190 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,194 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,194 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:45,195 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,295 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:45,299 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:45,300 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,397 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:45,402 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:45,403 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:45,502 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:45,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:45,503 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:45,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:45,602 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:45,602 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:537, output treesize:215
[2021-06-01 18:52:45,781 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 83
[2021-06-01 18:52:46,127 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 94
[2021-06-01 18:52:46,322 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82
[2021-06-01 18:52:46,670 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1050, v_prenex_1052, v_prenex_1044, v_prenex_1046, array_6, v_prenex_1048], 1=[v_prenex_1051, array_3, v_prenex_1043, v_prenex_1045, v_prenex_1047, v_prenex_1049]}
[2021-06-01 18:52:46,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:46,679 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:46,686 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:46,686 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:46,694 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:46,694 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:46,701 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:46,702 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:46,709 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:46,709 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:46,716 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:46,716 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,009 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 85
[2021-06-01 18:52:47,009 INFO L628 ElimStorePlain]: treesize reduction 1112, result has 14.9 percent of original size
[2021-06-01 18:52:47,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:47,015 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,084 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:47,089 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:47,090 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,156 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:47,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:47,162 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,224 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:47,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:47,229 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:47,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:47,304 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:47,362 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1051 vanished before elimination
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1043 vanished before elimination
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1045 vanished before elimination
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1047 vanished before elimination
[2021-06-01 18:52:47,362 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1049 vanished before elimination
[2021-06-01 18:52:47,364 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:52:47,364 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1537, output treesize:107
[2021-06-01 18:52:47,497 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:47,498 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2128106978] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:47,498 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:47,498 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:47,498 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907682024]
[2021-06-01 18:52:47,498 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:47,498 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:47,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:47,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:47,498 INFO L87 Difference]: Start difference. First operand 404 states and 1264 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:48,041 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 116
[2021-06-01 18:52:48,542 WARN L205 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 152
[2021-06-01 18:52:49,215 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 170
[2021-06-01 18:52:49,837 WARN L205 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 164
[2021-06-01 18:52:50,533 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 182
[2021-06-01 18:52:51,284 WARN L205 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 188
[2021-06-01 18:52:51,321 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:51,321 INFO L93 Difference]: Finished difference Result 734 states and 2133 transitions.
[2021-06-01 18:52:51,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:52:51,321 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:51,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:51,322 INFO L225 Difference]: With dead ends: 734
[2021-06-01 18:52:51,322 INFO L226 Difference]: Without dead ends: 680
[2021-06-01 18:52:51,322 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 4482.2ms TimeCoverageRelationStatistics Valid=138, Invalid=564, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:52:51,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states.
[2021-06-01 18:52:51,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 408.
[2021-06-01 18:52:51,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 408 states, 407 states have (on average 3.14004914004914) internal successors, (1278), 407 states have internal predecessors, (1278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:51,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 1278 transitions.
[2021-06-01 18:52:51,327 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 1278 transitions. Word has length 20
[2021-06-01 18:52:51,328 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:51,328 INFO L482 AbstractCegarLoop]: Abstraction has 408 states and 1278 transitions.
[2021-06-01 18:52:51,328 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:51,328 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 1278 transitions.
[2021-06-01 18:52:51,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:51,328 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:51,328 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:51,528 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 78 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7471
[2021-06-01 18:52:51,529 INFO L430 AbstractCegarLoop]: === Iteration 200 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:51,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:51,529 INFO L82 PathProgramCache]: Analyzing trace with hash 844201320, now seen corresponding path program 51 times
[2021-06-01 18:52:51,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:51,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032286241]
[2021-06-01 18:52:51,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:51,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:51,716 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:51,717 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:51,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032286241]
[2021-06-01 18:52:51,717 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032286241] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:51,717 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1525938080]
[2021-06-01 18:52:51,717 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 79 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:51,744 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:52:51,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:51,745 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:52:51,745 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:52,066 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,067 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:52,068 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,073 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,073 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:52,074 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,079 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,079 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:52,080 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,085 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,085 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:52,086 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,091 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,091 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:52,092 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,096 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:52,097 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,352 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61
[2021-06-01 18:52:52,352 INFO L628 ElimStorePlain]: treesize reduction 367, result has 44.1 percent of original size
[2021-06-01 18:52:52,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:52:52,358 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:52,362 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,366 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:52,367 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,548 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55
[2021-06-01 18:52:52,548 INFO L628 ElimStorePlain]: treesize reduction 22, result has 91.4 percent of original size
[2021-06-01 18:52:52,552 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:52,553 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,556 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,557 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:52,558 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,561 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:52,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:52,562 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:52,702 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49
[2021-06-01 18:52:52,702 INFO L628 ElimStorePlain]: treesize reduction 29, result has 85.2 percent of original size
[2021-06-01 18:52:52,706 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:52:52,706 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:751, output treesize:143
[2021-06-01 18:52:52,849 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64
[2021-06-01 18:52:53,357 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72
[2021-06-01 18:52:53,896 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1066, v_prenex_1068, array_6], 1=[array_3, v_prenex_1065, v_prenex_1067]}
[2021-06-01 18:52:53,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:52:53,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:53,908 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:53,909 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:53,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:53,915 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:53,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:52:53,922 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:53,927 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:52:53,928 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:53,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:53,934 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:54,172 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61
[2021-06-01 18:52:54,172 INFO L628 ElimStorePlain]: treesize reduction 631, result has 25.2 percent of original size
[2021-06-01 18:52:54,175 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:52:54,176 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:54,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:54,181 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:54,323 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53
[2021-06-01 18:52:54,323 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.5 percent of original size
[2021-06-01 18:52:54,326 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:52:54,327 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:54,396 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:54,397 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:52:54,397 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1065 vanished before elimination
[2021-06-01 18:52:54,397 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1067 vanished before elimination
[2021-06-01 18:52:54,398 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:52:54,399 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 9 variables, input treesize:978, output treesize:144
[2021-06-01 18:52:54,590 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:54,590 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1525938080] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:54,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:54,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:54,591 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039818317]
[2021-06-01 18:52:54,591 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:54,591 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:54,591 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:54,591 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:54,591 INFO L87 Difference]: Start difference. First operand 408 states and 1278 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:55,070 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 84
[2021-06-01 18:52:55,621 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 116
[2021-06-01 18:52:56,332 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 136
[2021-06-01 18:52:56,715 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 113
[2021-06-01 18:52:57,124 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 123
[2021-06-01 18:52:57,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:52:57,173 INFO L93 Difference]: Finished difference Result 686 states and 2062 transitions.
[2021-06-01 18:52:57,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:52:57,174 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:52:57,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:52:57,175 INFO L225 Difference]: With dead ends: 686
[2021-06-01 18:52:57,175 INFO L226 Difference]: Without dead ends: 671
[2021-06-01 18:52:57,175 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3108.8ms TimeCoverageRelationStatistics Valid=114, Invalid=536, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:52:57,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states.
[2021-06-01 18:52:57,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 414.
[2021-06-01 18:52:57,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 3.152542372881356) internal successors, (1302), 413 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:57,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1302 transitions.
[2021-06-01 18:52:57,180 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1302 transitions. Word has length 20
[2021-06-01 18:52:57,180 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:52:57,180 INFO L482 AbstractCegarLoop]: Abstraction has 414 states and 1302 transitions.
[2021-06-01 18:52:57,180 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:52:57,180 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1302 transitions.
[2021-06-01 18:52:57,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:52:57,180 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:52:57,181 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:52:57,381 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 79 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7584
[2021-06-01 18:52:57,381 INFO L430 AbstractCegarLoop]: === Iteration 201 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:52:57,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:52:57,381 INFO L82 PathProgramCache]: Analyzing trace with hash 637193638, now seen corresponding path program 52 times
[2021-06-01 18:52:57,381 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:52:57,381 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477351319]
[2021-06-01 18:52:57,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:52:57,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:52:57,690 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:57,691 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:52:57,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477351319]
[2021-06-01 18:52:57,691 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1477351319] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:57,691 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55943902]
[2021-06-01 18:52:57,691 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 80 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:52:57,718 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:52:57,718 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:52:57,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-06-01 18:52:57,719 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:52:57,989 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:57,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:57,990 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,216 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90
[2021-06-01 18:52:58,217 INFO L628 ElimStorePlain]: treesize reduction 155, result has 66.2 percent of original size
[2021-06-01 18:52:58,220 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:58,221 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,325 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:52:58,326 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:58,330 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,330 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:58,331 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,335 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:58,336 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,519 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76
[2021-06-01 18:52:58,519 INFO L628 ElimStorePlain]: treesize reduction 26, result has 90.3 percent of original size
[2021-06-01 18:52:58,523 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:58,524 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,607 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:58,610 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,611 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:58,612 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,615 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,615 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:52:58,616 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,694 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:58,697 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,698 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:52:58,699 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,702 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:52:58,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:52:58,703 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:52:58,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:52:58,775 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:52:58,775 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:465, output treesize:167
[2021-06-01 18:52:58,913 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 73
[2021-06-01 18:52:59,477 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33
[2021-06-01 18:52:59,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:52:59,638 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55943902] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:52:59,638 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:52:59,638 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:52:59,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067429728]
[2021-06-01 18:52:59,638 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:52:59,638 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:52:59,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:52:59,638 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:52:59,638 INFO L87 Difference]: Start difference. First operand 414 states and 1302 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:00,209 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115
[2021-06-01 18:53:00,722 WARN L205 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 137
[2021-06-01 18:53:01,323 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 146
[2021-06-01 18:53:01,965 WARN L205 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 158
[2021-06-01 18:53:02,636 WARN L205 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 167
[2021-06-01 18:53:03,194 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 161
[2021-06-01 18:53:03,899 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 172
[2021-06-01 18:53:04,468 WARN L205 SmtUtils]: Spent 523.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 164
[2021-06-01 18:53:05,193 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 169
[2021-06-01 18:53:05,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:05,212 INFO L93 Difference]: Finished difference Result 789 states and 2272 transitions.
[2021-06-01 18:53:05,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:53:05,212 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:05,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:05,213 INFO L225 Difference]: With dead ends: 789
[2021-06-01 18:53:05,213 INFO L226 Difference]: Without dead ends: 732
[2021-06-01 18:53:05,213 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 5981.7ms TimeCoverageRelationStatistics Valid=174, Invalid=696, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:53:05,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 732 states.
[2021-06-01 18:53:05,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 732 to 414.
[2021-06-01 18:53:05,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 3.152542372881356) internal successors, (1302), 413 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:05,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 1302 transitions.
[2021-06-01 18:53:05,219 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 1302 transitions. Word has length 20
[2021-06-01 18:53:05,219 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:05,220 INFO L482 AbstractCegarLoop]: Abstraction has 414 states and 1302 transitions.
[2021-06-01 18:53:05,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:05,220 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 1302 transitions.
[2021-06-01 18:53:05,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:05,220 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:05,220 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:05,420 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7793,80 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:05,421 INFO L430 AbstractCegarLoop]: === Iteration 202 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:05,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:05,421 INFO L82 PathProgramCache]: Analyzing trace with hash -2058431408, now seen corresponding path program 53 times
[2021-06-01 18:53:05,421 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:05,421 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351380684]
[2021-06-01 18:53:05,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:05,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:05,659 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:05,659 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:05,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351380684]
[2021-06-01 18:53:05,659 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351380684] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:05,659 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1170796871]
[2021-06-01 18:53:05,659 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 81 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:05,691 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:53:05,692 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:53:05,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:53:05,693 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:05,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,840 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,845 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:53:05,849 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,853 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,854 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,858 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:05,859 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts.
[2021-06-01 18:53:05,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:53:05,863 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,867 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:53:05,868 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,872 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,872 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:05,877 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:05,881 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,885 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:05,886 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,890 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:05,895 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:05,899 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:53:05,904 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:05,908 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,913 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:05,918 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:53:05,922 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,926 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,930 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,931 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:53:05,936 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:05,940 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,944 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:53:05,944 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:53:05,949 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,952 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,953 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:53:05,957 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,961 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,962 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:05,966 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:05,971 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,974 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:05,975 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,978 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:05,979 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:05,984 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:05,988 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,991 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:05,992 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:05,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:53:05,996 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:06,132 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 32
[2021-06-01 18:53:06,132 INFO L628 ElimStorePlain]: treesize reduction 493, result has 21.1 percent of original size
[2021-06-01 18:53:06,133 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 7 xjuncts.
[2021-06-01 18:53:06,133 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1501, output treesize:132
[2021-06-01 18:53:06,419 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 35
[2021-06-01 18:53:06,824 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:06,824 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1170796871] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:06,825 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:06,825 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:53:06,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913154505]
[2021-06-01 18:53:06,825 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:53:06,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:06,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:53:06,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:53:06,825 INFO L87 Difference]: Start difference. First operand 414 states and 1302 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:07,341 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70
[2021-06-01 18:53:07,563 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54
[2021-06-01 18:53:07,986 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85
[2021-06-01 18:53:08,239 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66
[2021-06-01 18:53:08,670 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87
[2021-06-01 18:53:09,092 WARN L205 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87
[2021-06-01 18:53:09,339 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68
[2021-06-01 18:53:09,784 WARN L205 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 93
[2021-06-01 18:53:10,326 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98
[2021-06-01 18:53:10,643 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80
[2021-06-01 18:53:11,332 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 100
[2021-06-01 18:53:11,926 WARN L205 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105
[2021-06-01 18:53:12,265 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 87
[2021-06-01 18:53:12,885 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 109
[2021-06-01 18:53:13,346 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99
[2021-06-01 18:53:13,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:13,401 INFO L93 Difference]: Finished difference Result 980 states and 2814 transitions.
[2021-06-01 18:53:13,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2021-06-01 18:53:13,401 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:13,402 INFO L225 Difference]: With dead ends: 980
[2021-06-01 18:53:13,402 INFO L226 Difference]: Without dead ends: 911
[2021-06-01 18:53:13,402 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 132 ImplicationChecksByTransitivity, 7005.3ms TimeCoverageRelationStatistics Valid=276, Invalid=1056, Unknown=0, NotChecked=0, Total=1332
[2021-06-01 18:53:13,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states.
[2021-06-01 18:53:13,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 420.
[2021-06-01 18:53:13,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 420 states, 419 states have (on average 3.1455847255369926) internal successors, (1318), 419 states have internal predecessors, (1318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:13,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 420 states to 420 states and 1318 transitions.
[2021-06-01 18:53:13,409 INFO L78 Accepts]: Start accepts. Automaton has 420 states and 1318 transitions. Word has length 20
[2021-06-01 18:53:13,409 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:13,409 INFO L482 AbstractCegarLoop]: Abstraction has 420 states and 1318 transitions.
[2021-06-01 18:53:13,409 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:13,409 INFO L276 IsEmpty]: Start isEmpty. Operand 420 states and 1318 transitions.
[2021-06-01 18:53:13,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:13,409 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:13,409 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:13,610 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 81 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7860
[2021-06-01 18:53:13,610 INFO L430 AbstractCegarLoop]: === Iteration 203 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:13,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:13,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1265659952, now seen corresponding path program 54 times
[2021-06-01 18:53:13,610 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:13,610 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369190852]
[2021-06-01 18:53:13,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:13,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:13,891 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:13,891 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:13,891 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369190852]
[2021-06-01 18:53:13,891 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369190852] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:13,892 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185564337]
[2021-06-01 18:53:13,892 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 82 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:13,918 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:53:13,918 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:53:13,919 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:53:13,919 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:14,328 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,329 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:14,330 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,335 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,335 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:14,336 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,341 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,342 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:14,343 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,348 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,348 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,349 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:14,349 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,354 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,355 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:14,356 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,360 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:14,361 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,654 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65
[2021-06-01 18:53:14,654 INFO L628 ElimStorePlain]: treesize reduction 441, result has 40.6 percent of original size
[2021-06-01 18:53:14,658 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:14,659 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,663 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,664 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:14,665 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,669 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,669 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:14,670 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,785 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:53:14,785 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:14,789 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:14,790 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,794 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,795 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,795 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:14,796 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,800 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:14,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:14,802 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:14,985 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55
[2021-06-01 18:53:14,985 INFO L628 ElimStorePlain]: treesize reduction 28, result has 88.2 percent of original size
[2021-06-01 18:53:14,989 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:53:14,990 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:859, output treesize:200
[2021-06-01 18:53:15,169 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72
[2021-06-01 18:53:15,403 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 79
[2021-06-01 18:53:15,757 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1108, v_prenex_1110, v_prenex_1121, v_prenex_1112, array_6, v_prenex_1114, v_prenex_1102, v_prenex_1116, v_prenex_1104, v_prenex_1106], 1=[v_prenex_1109, array_3, v_prenex_1101, v_prenex_1111, v_prenex_1103, v_prenex_1113, v_prenex_1105, v_prenex_1115, v_prenex_1107, v_prenex_1117]}
[2021-06-01 18:53:15,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:15,768 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:16,113 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 83
[2021-06-01 18:53:16,113 INFO L628 ElimStorePlain]: treesize reduction 876, result has 23.9 percent of original size
[2021-06-01 18:53:16,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1110 vanished before elimination
[2021-06-01 18:53:16,113 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1121 vanished before elimination
[2021-06-01 18:53:16,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:16,129 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:16,237 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:53:16,237 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:16,238 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:53:16,242 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:16,243 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:16,349 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:53:16,349 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:16,349 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1102 vanished before elimination
[2021-06-01 18:53:16,353 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:16,354 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:16,457 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:53:16,458 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:16,458 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1104 vanished before elimination
[2021-06-01 18:53:16,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:16,463 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:16,564 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 63
[2021-06-01 18:53:16,564 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1109 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1101 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1111 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1103 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1113 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1105 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1115 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1107 vanished before elimination
[2021-06-01 18:53:16,564 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1117 vanished before elimination
[2021-06-01 18:53:16,567 INFO L550 ElimStorePlain]: Start of recursive call 1: 10 dim-0 vars, 20 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:53:16,567 INFO L247 ElimStorePlain]: Needed 6 recursive calls to eliminate 30 variables, input treesize:1158, output treesize:216
[2021-06-01 18:53:16,733 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36
[2021-06-01 18:53:16,907 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:16,907 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185564337] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:16,907 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:16,907 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:53:16,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1150439239]
[2021-06-01 18:53:16,907 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:53:16,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:16,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:53:16,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:53:16,908 INFO L87 Difference]: Start difference. First operand 420 states and 1318 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:17,596 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 108
[2021-06-01 18:53:17,906 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 92
[2021-06-01 18:53:18,609 WARN L205 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 145
[2021-06-01 18:53:19,121 WARN L205 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 111
[2021-06-01 18:53:19,906 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 149
[2021-06-01 18:53:20,504 WARN L205 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 115
[2021-06-01 18:53:21,524 WARN L205 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 166
[2021-06-01 18:53:22,258 WARN L205 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 136
[2021-06-01 18:53:23,344 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 205 DAG size of output: 173
[2021-06-01 18:53:24,094 WARN L205 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 143
[2021-06-01 18:53:24,898 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 145
[2021-06-01 18:53:24,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:24,900 INFO L93 Difference]: Finished difference Result 965 states and 2768 transitions.
[2021-06-01 18:53:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-06-01 18:53:24,900 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:24,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:24,901 INFO L225 Difference]: With dead ends: 965
[2021-06-01 18:53:24,901 INFO L226 Difference]: Without dead ends: 935
[2021-06-01 18:53:24,901 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 8530.0ms TimeCoverageRelationStatistics Valid=191, Invalid=801, Unknown=0, NotChecked=0, Total=992
[2021-06-01 18:53:24,902 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 935 states.
[2021-06-01 18:53:24,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 935 to 423.
[2021-06-01 18:53:24,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 3.1492890995260665) internal successors, (1329), 422 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:24,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1329 transitions.
[2021-06-01 18:53:24,907 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1329 transitions. Word has length 20
[2021-06-01 18:53:24,907 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:24,907 INFO L482 AbstractCegarLoop]: Abstraction has 423 states and 1329 transitions.
[2021-06-01 18:53:24,908 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:24,908 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1329 transitions.
[2021-06-01 18:53:24,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:24,908 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:24,908 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:25,108 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7903,82 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:25,109 INFO L430 AbstractCegarLoop]: === Iteration 204 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:25,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:25,109 INFO L82 PathProgramCache]: Analyzing trace with hash 1330586956, now seen corresponding path program 55 times
[2021-06-01 18:53:25,109 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:25,109 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946031284]
[2021-06-01 18:53:25,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:25,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:25,266 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:25,267 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:25,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946031284]
[2021-06-01 18:53:25,267 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946031284] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:25,267 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1040423847]
[2021-06-01 18:53:25,267 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 83 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:25,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:25,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:53:25,309 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:25,696 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,697 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:25,698 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:25,702 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,702 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,703 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:25,703 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:25,707 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,708 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:25,709 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:25,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:25,714 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:25,718 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,719 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:25,720 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:25,724 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:25,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:25,725 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,012 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63
[2021-06-01 18:53:26,013 INFO L628 ElimStorePlain]: treesize reduction 396, result has 43.9 percent of original size
[2021-06-01 18:53:26,017 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,017 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,018 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:26,018 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,023 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,023 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:26,024 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:26,029 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,223 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57
[2021-06-01 18:53:26,224 INFO L628 ElimStorePlain]: treesize reduction 34, result has 87.6 percent of original size
[2021-06-01 18:53:26,227 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,228 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:26,229 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,233 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,233 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:26,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:26,234 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,237 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:26,238 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:26,317 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:26,321 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:53:26,321 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:805, output treesize:164
[2021-06-01 18:53:26,472 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66
[2021-06-01 18:53:26,738 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 73
[2021-06-01 18:53:27,080 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1140, array_6, v_prenex_1138], 1=[array_3, v_prenex_1137, v_prenex_1139]}
[2021-06-01 18:53:27,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:27,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:27,093 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,098 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:27,099 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,104 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:27,105 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:27,112 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,128 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:27,130 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,370 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60
[2021-06-01 18:53:27,370 INFO L628 ElimStorePlain]: treesize reduction 710, result has 21.8 percent of original size
[2021-06-01 18:53:27,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:27,375 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,451 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:27,454 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:27,455 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:27,530 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:27,530 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:53:27,530 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1137 vanished before elimination
[2021-06-01 18:53:27,530 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1139 vanished before elimination
[2021-06-01 18:53:27,532 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:53:27,533 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:1086, output treesize:160
[2021-06-01 18:53:27,672 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35
[2021-06-01 18:53:27,864 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:27,864 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1040423847] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:27,864 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:27,864 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:53:27,864 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741138161]
[2021-06-01 18:53:27,864 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:53:27,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:27,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:53:27,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:53:27,865 INFO L87 Difference]: Start difference. First operand 423 states and 1329 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:28,439 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 83
[2021-06-01 18:53:29,047 WARN L205 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 117
[2021-06-01 18:53:29,712 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 125
[2021-06-01 18:53:30,523 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 144
[2021-06-01 18:53:31,454 WARN L205 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 159
[2021-06-01 18:53:31,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:31,503 INFO L93 Difference]: Finished difference Result 753 states and 2239 transitions.
[2021-06-01 18:53:31,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:53:31,503 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:31,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:31,504 INFO L225 Difference]: With dead ends: 753
[2021-06-01 18:53:31,504 INFO L226 Difference]: Without dead ends: 731
[2021-06-01 18:53:31,504 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4194.3ms TimeCoverageRelationStatistics Valid=112, Invalid=538, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:53:31,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states.
[2021-06-01 18:53:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 423.
[2021-06-01 18:53:31,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 423 states, 422 states have (on average 3.1492890995260665) internal successors, (1329), 422 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:31,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 423 states to 423 states and 1329 transitions.
[2021-06-01 18:53:31,509 INFO L78 Accepts]: Start accepts. Automaton has 423 states and 1329 transitions. Word has length 20
[2021-06-01 18:53:31,509 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:31,509 INFO L482 AbstractCegarLoop]: Abstraction has 423 states and 1329 transitions.
[2021-06-01 18:53:31,509 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:31,509 INFO L276 IsEmpty]: Start isEmpty. Operand 423 states and 1329 transitions.
[2021-06-01 18:53:31,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:31,510 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:31,510 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:31,710 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 83 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8000
[2021-06-01 18:53:31,710 INFO L430 AbstractCegarLoop]: === Iteration 205 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:31,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:31,711 INFO L82 PathProgramCache]: Analyzing trace with hash -854811094, now seen corresponding path program 56 times
[2021-06-01 18:53:31,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:31,711 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2558819]
[2021-06-01 18:53:31,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:31,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:32,018 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:32,018 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:32,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2558819]
[2021-06-01 18:53:32,018 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2558819] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:32,018 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [153998193]
[2021-06-01 18:53:32,018 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 84 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:32,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:53:32,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:53:32,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:53:32,046 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:32,596 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,597 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:32,598 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:32,605 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,611 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,612 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:32,613 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,619 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,620 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:32,621 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,627 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,628 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:32,629 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,635 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,636 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:32,637 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,950 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68
[2021-06-01 18:53:32,950 INFO L628 ElimStorePlain]: treesize reduction 413, result has 45.4 percent of original size
[2021-06-01 18:53:32,955 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,955 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:32,956 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:32,961 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:32,965 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:32,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:32,967 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:33,210 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62
[2021-06-01 18:53:33,210 INFO L628 ElimStorePlain]: treesize reduction 28, result has 91.1 percent of original size
[2021-06-01 18:53:33,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:33,215 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:33,219 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:33,220 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:33,220 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:33,221 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:33,225 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:33,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:33,226 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:33,405 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53
[2021-06-01 18:53:33,405 INFO L628 ElimStorePlain]: treesize reduction 37, result has 84.5 percent of original size
[2021-06-01 18:53:33,410 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:53:33,410 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:859, output treesize:192
[2021-06-01 18:53:33,585 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70
[2021-06-01 18:53:33,973 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73
[2021-06-01 18:53:34,152 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1152, v_prenex_1154, v_prenex_1156, array_6], 1=[array_3, v_prenex_1151, v_prenex_1153, v_prenex_1155]}
[2021-06-01 18:53:34,159 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:34,160 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,166 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:34,167 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,173 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:34,174 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:34,181 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:34,189 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,195 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:34,196 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,532 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77
[2021-06-01 18:53:34,532 INFO L628 ElimStorePlain]: treesize reduction 969, result has 21.5 percent of original size
[2021-06-01 18:53:34,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:34,538 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,640 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:53:34,641 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:34,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:34,646 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,749 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:53:34,750 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:34,753 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:34,754 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:34,849 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:34,850 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:53:34,850 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1151 vanished before elimination
[2021-06-01 18:53:34,850 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1153 vanished before elimination
[2021-06-01 18:53:34,850 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1155 vanished before elimination
[2021-06-01 18:53:34,852 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:53:34,852 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:1408, output treesize:217
[2021-06-01 18:53:35,010 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:53:35,182 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 33
[2021-06-01 18:53:35,273 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:35,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [153998193] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:35,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:35,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:53:35,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328612699]
[2021-06-01 18:53:35,273 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:53:35,273 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:35,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:53:35,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:53:35,274 INFO L87 Difference]: Start difference. First operand 423 states and 1329 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:35,938 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 101
[2021-06-01 18:53:36,253 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 94
[2021-06-01 18:53:36,660 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105
[2021-06-01 18:53:36,956 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 98
[2021-06-01 18:53:37,437 WARN L205 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 121
[2021-06-01 18:53:37,966 WARN L205 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 117
[2021-06-01 18:53:38,308 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 108
[2021-06-01 18:53:38,875 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 133
[2021-06-01 18:53:39,496 WARN L205 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 128
[2021-06-01 18:53:39,910 WARN L205 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 119
[2021-06-01 18:53:40,637 WARN L205 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 149
[2021-06-01 18:53:41,146 WARN L205 SmtUtils]: Spent 450.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 134
[2021-06-01 18:53:41,817 WARN L205 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 135
[2021-06-01 18:53:42,258 WARN L205 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 126
[2021-06-01 18:53:43,011 WARN L205 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 153
[2021-06-01 18:53:43,543 WARN L205 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 137
[2021-06-01 18:53:44,260 WARN L205 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 144
[2021-06-01 18:53:44,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:44,295 INFO L93 Difference]: Finished difference Result 1078 states and 3048 transitions.
[2021-06-01 18:53:44,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2021-06-01 18:53:44,295 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:44,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:44,297 INFO L225 Difference]: With dead ends: 1078
[2021-06-01 18:53:44,297 INFO L226 Difference]: Without dead ends: 1006
[2021-06-01 18:53:44,297 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 157 ImplicationChecksByTransitivity, 9405.1ms TimeCoverageRelationStatistics Valid=270, Invalid=1136, Unknown=0, NotChecked=0, Total=1406
[2021-06-01 18:53:44,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1006 states.
[2021-06-01 18:53:44,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1006 to 422.
[2021-06-01 18:53:44,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 422 states, 421 states have (on average 3.152019002375297) internal successors, (1327), 421 states have internal predecessors, (1327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:44,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1327 transitions.
[2021-06-01 18:53:44,303 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1327 transitions. Word has length 20
[2021-06-01 18:53:44,303 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:44,303 INFO L482 AbstractCegarLoop]: Abstraction has 422 states and 1327 transitions.
[2021-06-01 18:53:44,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:44,303 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1327 transitions.
[2021-06-01 18:53:44,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:44,304 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:44,304 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:44,504 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8112,84 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:44,504 INFO L430 AbstractCegarLoop]: === Iteration 206 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:44,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:44,505 INFO L82 PathProgramCache]: Analyzing trace with hash -51697496, now seen corresponding path program 57 times
[2021-06-01 18:53:44,505 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:44,505 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984889934]
[2021-06-01 18:53:44,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:44,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:44,687 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:44,687 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:44,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984889934]
[2021-06-01 18:53:44,687 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [984889934] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:44,687 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [502684280]
[2021-06-01 18:53:44,687 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 85 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:44,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:53:44,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:53:44,721 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:53:44,722 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:45,302 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,302 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:45,303 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,308 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,308 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,309 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:45,310 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,314 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,315 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:45,316 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,320 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,321 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,321 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:45,322 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,327 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,327 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:45,328 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,332 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:45,333 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,617 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 66
[2021-06-01 18:53:45,617 INFO L628 ElimStorePlain]: treesize reduction 375, result has 46.2 percent of original size
[2021-06-01 18:53:45,621 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,621 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,622 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:53:45,623 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,626 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,627 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,627 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:45,628 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,632 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,632 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:45,633 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,826 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55
[2021-06-01 18:53:45,826 INFO L628 ElimStorePlain]: treesize reduction 23, result has 91.0 percent of original size
[2021-06-01 18:53:45,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:45,831 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,836 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,837 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:45,838 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,843 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:45,843 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:45,844 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:45,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:45,941 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:53:45,941 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:859, output treesize:199
[2021-06-01 18:53:46,655 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 81
[2021-06-01 18:53:46,909 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1181, v_prenex_1183, v_prenex_1185, array_6, v_prenex_1177, v_prenex_1179], 1=[v_prenex_1180, v_prenex_1182, array_3, v_prenex_1184, v_prenex_1176, v_prenex_1178]}
[2021-06-01 18:53:46,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:46,918 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:46,926 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:46,926 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:46,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:46,935 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:46,942 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:46,943 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:46,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:46,951 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:46,958 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:46,959 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,277 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 85
[2021-06-01 18:53:47,277 INFO L628 ElimStorePlain]: treesize reduction 1068, result has 16.6 percent of original size
[2021-06-01 18:53:47,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:47,283 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,365 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:47,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:47,370 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:47,453 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:47,454 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,537 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:47,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:47,542 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,616 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:47,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:53:47,621 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:53:47,625 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:47,744 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56
[2021-06-01 18:53:47,744 INFO L628 ElimStorePlain]: treesize reduction 19, result has 88.3 percent of original size
[2021-06-01 18:53:47,744 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1180 vanished before elimination
[2021-06-01 18:53:47,744 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1182 vanished before elimination
[2021-06-01 18:53:47,744 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:53:47,744 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1184 vanished before elimination
[2021-06-01 18:53:47,744 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1176 vanished before elimination
[2021-06-01 18:53:47,745 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1178 vanished before elimination
[2021-06-01 18:53:47,747 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:53:47,747 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1447, output treesize:107
[2021-06-01 18:53:47,881 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:47,881 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [502684280] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:47,881 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:47,881 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:53:47,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906407607]
[2021-06-01 18:53:47,881 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:53:47,882 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:47,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:53:47,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:53:47,882 INFO L87 Difference]: Start difference. First operand 422 states and 1327 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:48,499 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 114
[2021-06-01 18:53:49,064 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 121
[2021-06-01 18:53:49,773 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136
[2021-06-01 18:53:49,969 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72
[2021-06-01 18:53:50,835 WARN L205 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 155
[2021-06-01 18:53:51,182 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 126
[2021-06-01 18:53:51,328 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65
[2021-06-01 18:53:51,761 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 141
[2021-06-01 18:53:52,146 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 130
[2021-06-01 18:53:52,311 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 69
[2021-06-01 18:53:52,765 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 145
[2021-06-01 18:53:53,152 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 133
[2021-06-01 18:53:53,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:53:53,209 INFO L93 Difference]: Finished difference Result 884 states and 2574 transitions.
[2021-06-01 18:53:53,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:53:53,210 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:53:53,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:53:53,211 INFO L225 Difference]: With dead ends: 884
[2021-06-01 18:53:53,211 INFO L226 Difference]: Without dead ends: 821
[2021-06-01 18:53:53,211 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 5616.9ms TimeCoverageRelationStatistics Valid=220, Invalid=970, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:53:53,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states.
[2021-06-01 18:53:53,216 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 425.
[2021-06-01 18:53:53,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 425 states, 424 states have (on average 3.1485849056603774) internal successors, (1335), 424 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:53,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 425 states to 425 states and 1335 transitions.
[2021-06-01 18:53:53,217 INFO L78 Accepts]: Start accepts. Automaton has 425 states and 1335 transitions. Word has length 20
[2021-06-01 18:53:53,217 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:53:53,217 INFO L482 AbstractCegarLoop]: Abstraction has 425 states and 1335 transitions.
[2021-06-01 18:53:53,217 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:53,217 INFO L276 IsEmpty]: Start isEmpty. Operand 425 states and 1335 transitions.
[2021-06-01 18:53:53,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:53:53,218 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:53:53,218 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:53:53,418 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 85 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8282
[2021-06-01 18:53:53,418 INFO L430 AbstractCegarLoop]: === Iteration 207 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:53:53,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:53:53,418 INFO L82 PathProgramCache]: Analyzing trace with hash -367808852, now seen corresponding path program 58 times
[2021-06-01 18:53:53,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:53:53,418 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [534803274]
[2021-06-01 18:53:53,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:53:53,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:53:53,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:53,652 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:53:53,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [534803274]
[2021-06-01 18:53:53,652 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [534803274] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:53,652 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113415548]
[2021-06-01 18:53:53,652 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 86 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:53:53,684 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:53:53,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:53:53,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:53:53,686 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:53:54,120 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,121 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:54,122 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,127 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,127 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:54,128 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,133 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,149 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:54,150 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,157 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:54,159 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,164 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,165 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:54,166 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,170 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:54,172 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,427 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 62
[2021-06-01 18:53:54,427 INFO L628 ElimStorePlain]: treesize reduction 407, result has 41.2 percent of original size
[2021-06-01 18:53:54,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:54,432 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,435 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,435 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:53:54,436 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,440 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,440 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:53:54,441 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,543 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 58
[2021-06-01 18:53:54,543 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:54,547 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,547 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,548 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:54,549 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,552 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:54,553 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,556 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:53:54,556 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:53:54,557 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:54,636 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:54,640 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:53:54,640 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:805, output treesize:171
[2021-06-01 18:53:54,794 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67
[2021-06-01 18:53:55,261 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 79
[2021-06-01 18:53:55,534 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1200, array_6, v_prenex_1202], 1=[array_3, v_prenex_1199, v_prenex_1201]}
[2021-06-01 18:53:55,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:53:55,541 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:55,548 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:53:55,556 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:53:55,563 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,569 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:53:55,570 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,575 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:53:55,576 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,820 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 60
[2021-06-01 18:53:55,820 INFO L628 ElimStorePlain]: treesize reduction 781, result has 20.2 percent of original size
[2021-06-01 18:53:55,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:55,824 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:55,905 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:53:55,906 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:53:55,981 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:53:55,982 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:53:55,982 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1199 vanished before elimination
[2021-06-01 18:53:55,982 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1201 vanished before elimination
[2021-06-01 18:53:55,984 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 10 xjuncts.
[2021-06-01 18:53:55,984 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:1170, output treesize:160
[2021-06-01 18:53:56,124 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 35
[2021-06-01 18:53:56,345 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:53:56,345 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113415548] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:53:56,345 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:53:56,345 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:53:56,345 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992176775]
[2021-06-01 18:53:56,345 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:53:56,345 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:53:56,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:53:56,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:53:56,346 INFO L87 Difference]: Start difference. First operand 425 states and 1335 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:53:56,969 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 100
[2021-06-01 18:53:57,265 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89
[2021-06-01 18:53:57,577 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 105
[2021-06-01 18:53:57,878 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93
[2021-06-01 18:53:58,544 WARN L205 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 132
[2021-06-01 18:53:59,033 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140
[2021-06-01 18:53:59,621 WARN L205 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 128
[2021-06-01 18:53:59,972 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 111
[2021-06-01 18:54:00,560 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 131
[2021-06-01 18:54:01,186 WARN L205 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 135
[2021-06-01 18:54:01,584 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 117
[2021-06-01 18:54:01,960 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 118
[2021-06-01 18:54:02,607 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 138
[2021-06-01 18:54:03,071 WARN L205 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 120
[2021-06-01 18:54:03,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:03,199 INFO L93 Difference]: Finished difference Result 944 states and 2698 transitions.
[2021-06-01 18:54:03,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:54:03,200 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:03,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:03,201 INFO L225 Difference]: With dead ends: 944
[2021-06-01 18:54:03,201 INFO L226 Difference]: Without dead ends: 872
[2021-06-01 18:54:03,201 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 7353.4ms TimeCoverageRelationStatistics Valid=221, Invalid=969, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:54:03,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 872 states.
[2021-06-01 18:54:03,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 872 to 421.
[2021-06-01 18:54:03,206 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 421 states, 420 states have (on average 3.1476190476190475) internal successors, (1322), 420 states have internal predecessors, (1322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:03,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 421 states to 421 states and 1322 transitions.
[2021-06-01 18:54:03,207 INFO L78 Accepts]: Start accepts. Automaton has 421 states and 1322 transitions. Word has length 20
[2021-06-01 18:54:03,207 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:03,207 INFO L482 AbstractCegarLoop]: Abstraction has 421 states and 1322 transitions.
[2021-06-01 18:54:03,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:03,207 INFO L276 IsEmpty]: Start isEmpty. Operand 421 states and 1322 transitions.
[2021-06-01 18:54:03,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:03,207 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:03,207 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:03,408 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 86 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8455
[2021-06-01 18:54:03,408 INFO L430 AbstractCegarLoop]: === Iteration 208 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:03,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:03,408 INFO L82 PathProgramCache]: Analyzing trace with hash 1043679718, now seen corresponding path program 59 times
[2021-06-01 18:54:03,408 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:03,408 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232267456]
[2021-06-01 18:54:03,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:03,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:03,723 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:03,723 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:03,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232267456]
[2021-06-01 18:54:03,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232267456] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:03,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302793785]
[2021-06-01 18:54:03,723 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 87 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:03,750 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:54:03,750 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:03,751 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:54:03,751 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:03,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:03,895 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:54:03,900 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,904 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:54:03,910 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,915 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,920 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,924 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:03,929 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:03,933 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,938 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:03,942 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:03,947 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,952 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:03,956 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,961 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,965 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:54:03,966 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,971 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,975 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:03,980 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,985 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,989 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:03,990 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:03,994 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:03,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:54:03,999 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,002 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:04,004 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,007 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:04,009 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:04,013 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:04,018 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,021 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:04,022 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:54:04,027 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,030 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:04,031 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:54:04,036 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:54:04,040 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:54:04,044 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,048 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:04,048 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:04,052 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:04,056 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:04,185 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 36
[2021-06-01 18:54:04,186 INFO L628 ElimStorePlain]: treesize reduction 330, result has 30.8 percent of original size
[2021-06-01 18:54:04,187 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:54:04,187 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1657, output treesize:147
[2021-06-01 18:54:04,538 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37
[2021-06-01 18:54:04,718 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 41
[2021-06-01 18:54:04,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:04,869 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302793785] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:04,869 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:04,869 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:54:04,869 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365064937]
[2021-06-01 18:54:04,869 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:54:04,869 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:04,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:54:04,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:54:04,870 INFO L87 Difference]: Start difference. First operand 421 states and 1322 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:05,465 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70
[2021-06-01 18:54:05,867 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 74
[2021-06-01 18:54:06,365 WARN L205 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 89
[2021-06-01 18:54:06,953 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 106
[2021-06-01 18:54:07,491 WARN L205 SmtUtils]: Spent 465.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 98
[2021-06-01 18:54:08,289 WARN L205 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 119
[2021-06-01 18:54:08,928 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 115
[2021-06-01 18:54:09,873 WARN L205 SmtUtils]: Spent 726.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 128
[2021-06-01 18:54:10,097 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53
[2021-06-01 18:54:10,560 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 99
[2021-06-01 18:54:10,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:10,581 INFO L93 Difference]: Finished difference Result 944 states and 2689 transitions.
[2021-06-01 18:54:10,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:54:10,582 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:10,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:10,583 INFO L225 Difference]: With dead ends: 944
[2021-06-01 18:54:10,583 INFO L226 Difference]: Without dead ends: 860
[2021-06-01 18:54:10,583 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 6051.4ms TimeCoverageRelationStatistics Valid=205, Invalid=917, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:54:10,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 860 states.
[2021-06-01 18:54:10,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 860 to 430.
[2021-06-01 18:54:10,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 3.1515151515151514) internal successors, (1352), 429 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:10,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1352 transitions.
[2021-06-01 18:54:10,589 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1352 transitions. Word has length 20
[2021-06-01 18:54:10,589 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:10,589 INFO L482 AbstractCegarLoop]: Abstraction has 430 states and 1352 transitions.
[2021-06-01 18:54:10,589 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:10,589 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1352 transitions.
[2021-06-01 18:54:10,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:10,589 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:10,590 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:10,790 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 87 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8608
[2021-06-01 18:54:10,790 INFO L430 AbstractCegarLoop]: === Iteration 209 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:10,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:10,790 INFO L82 PathProgramCache]: Analyzing trace with hash 2032740266, now seen corresponding path program 60 times
[2021-06-01 18:54:10,790 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:10,790 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572757344]
[2021-06-01 18:54:10,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:10,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:10,938 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:10,938 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:10,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572757344]
[2021-06-01 18:54:10,938 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572757344] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:10,938 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [124298195]
[2021-06-01 18:54:10,938 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 88 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:10,966 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:54:10,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:10,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:54:10,968 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:11,512 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,513 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,513 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:11,514 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,518 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,519 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:11,520 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,525 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,525 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,525 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:11,526 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,531 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,531 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:11,532 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,537 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:11,537 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,541 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,542 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:11,543 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,797 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65
[2021-06-01 18:54:11,797 INFO L628 ElimStorePlain]: treesize reduction 347, result has 44.8 percent of original size
[2021-06-01 18:54:11,801 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,801 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,801 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:11,802 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,806 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,806 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:11,807 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,810 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:11,811 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,915 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:54:11,916 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:11,919 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:11,921 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,924 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,925 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:11,926 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:11,929 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:11,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:11,930 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,122 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55
[2021-06-01 18:54:12,122 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:54:12,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:54:12,128 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:859, output treesize:214
[2021-06-01 18:54:12,580 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1219, v_prenex_1221, array_6, v_prenex_1213, v_prenex_1215, v_prenex_1217], 1=[v_prenex_1218, array_3, v_prenex_1220, v_prenex_1212, v_prenex_1214, v_prenex_1216]}
[2021-06-01 18:54:12,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:12,589 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:12,599 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:12,608 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:12,617 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:12,626 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:12,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:12,635 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,050 WARN L205 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 86
[2021-06-01 18:54:13,051 INFO L628 ElimStorePlain]: treesize reduction 1280, result has 16.8 percent of original size
[2021-06-01 18:54:13,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:13,057 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,178 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:54:13,179 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:13,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:13,184 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,188 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:13,189 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:13,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:54:13,284 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,371 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:13,375 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:13,376 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,460 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:13,464 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:13,465 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:13,549 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1218 vanished before elimination
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1220 vanished before elimination
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1212 vanished before elimination
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1214 vanished before elimination
[2021-06-01 18:54:13,549 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1216 vanished before elimination
[2021-06-01 18:54:13,552 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:54:13,552 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1685, output treesize:144
[2021-06-01 18:54:13,693 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:54:13,840 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35
[2021-06-01 18:54:14,023 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 33
[2021-06-01 18:54:14,101 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:14,101 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [124298195] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:14,101 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:14,101 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:54:14,101 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1468890962]
[2021-06-01 18:54:14,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:54:14,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:14,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:54:14,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:54:14,101 INFO L87 Difference]: Start difference. First operand 430 states and 1352 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:14,648 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 112
[2021-06-01 18:54:15,087 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 121
[2021-06-01 18:54:15,501 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 116
[2021-06-01 18:54:16,334 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 127
[2021-06-01 18:54:16,686 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 112
[2021-06-01 18:54:17,597 WARN L205 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 140
[2021-06-01 18:54:18,187 WARN L205 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 124
[2021-06-01 18:54:19,146 WARN L205 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 143
[2021-06-01 18:54:19,838 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 138
[2021-06-01 18:54:19,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:19,882 INFO L93 Difference]: Finished difference Result 889 states and 2580 transitions.
[2021-06-01 18:54:19,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:54:19,882 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:19,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:19,883 INFO L225 Difference]: With dead ends: 889
[2021-06-01 18:54:19,883 INFO L226 Difference]: Without dead ends: 832
[2021-06-01 18:54:19,883 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 6181.9ms TimeCoverageRelationStatistics Valid=169, Invalid=701, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:54:19,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 832 states.
[2021-06-01 18:54:19,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 832 to 430.
[2021-06-01 18:54:19,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 430 states, 429 states have (on average 3.1515151515151514) internal successors, (1352), 429 states have internal predecessors, (1352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:19,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 430 states to 430 states and 1352 transitions.
[2021-06-01 18:54:19,889 INFO L78 Accepts]: Start accepts. Automaton has 430 states and 1352 transitions. Word has length 20
[2021-06-01 18:54:19,889 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:19,889 INFO L482 AbstractCegarLoop]: Abstraction has 430 states and 1352 transitions.
[2021-06-01 18:54:19,889 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:19,889 INFO L276 IsEmpty]: Start isEmpty. Operand 430 states and 1352 transitions.
[2021-06-01 18:54:19,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:19,890 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:19,890 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:20,090 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 88 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8660
[2021-06-01 18:54:20,090 INFO L430 AbstractCegarLoop]: === Iteration 210 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:20,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:20,091 INFO L82 PathProgramCache]: Analyzing trace with hash -149030846, now seen corresponding path program 61 times
[2021-06-01 18:54:20,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:20,091 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484657137]
[2021-06-01 18:54:20,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:20,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:20,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:20,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:20,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484657137]
[2021-06-01 18:54:20,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484657137] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:20,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2079921112]
[2021-06-01 18:54:20,296 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 89 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:20,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:20,328 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:54:20,329 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:21,101 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,101 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:21,103 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,108 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,109 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,109 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:21,110 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,117 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:21,118 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,124 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,124 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:21,125 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,131 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,132 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:21,133 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,139 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:21,140 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,459 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 73
[2021-06-01 18:54:21,460 INFO L628 ElimStorePlain]: treesize reduction 517, result has 40.6 percent of original size
[2021-06-01 18:54:21,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:21,466 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,470 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,471 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:21,472 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,476 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,476 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:21,477 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,602 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2021-06-01 18:54:21,602 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:21,607 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,607 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:21,608 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:21,613 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,617 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:21,618 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,737 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:54:21,737 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:21,742 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,743 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,743 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:21,744 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,750 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:21,751 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,755 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:21,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:21,756 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:21,963 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59
[2021-06-01 18:54:21,963 INFO L628 ElimStorePlain]: treesize reduction 26, result has 91.0 percent of original size
[2021-06-01 18:54:21,969 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:54:21,969 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1009, output treesize:236
[2021-06-01 18:54:22,142 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74
[2021-06-01 18:54:22,349 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71
[2021-06-01 18:54:22,669 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1250, array_6, v_prenex_1243, v_prenex_1245, v_prenex_1237, v_prenex_1239], 1=[array_3, v_prenex_1242, v_prenex_1244, v_prenex_1246, v_prenex_1236, v_prenex_1238]}
[2021-06-01 18:54:22,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:22,677 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:22,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:22,684 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:22,690 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:22,691 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:22,911 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76
[2021-06-01 18:54:22,911 INFO L628 ElimStorePlain]: treesize reduction 390, result has 35.3 percent of original size
[2021-06-01 18:54:22,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:22,916 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:22,992 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:22,993 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1243 vanished before elimination
[2021-06-01 18:54:22,996 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:22,997 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:23,069 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:23,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:23,074 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:23,144 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:23,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:23,148 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:23,216 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1242 vanished before elimination
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1244 vanished before elimination
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1246 vanished before elimination
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1236 vanished before elimination
[2021-06-01 18:54:23,217 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1238 vanished before elimination
[2021-06-01 18:54:23,219 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:54:23,219 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 18 variables, input treesize:701, output treesize:145
[2021-06-01 18:54:23,407 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:23,407 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2079921112] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:23,407 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:23,407 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:54:23,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1679433639]
[2021-06-01 18:54:23,407 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:54:23,407 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:23,407 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:54:23,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:54:23,408 INFO L87 Difference]: Start difference. First operand 430 states and 1352 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:24,008 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82
[2021-06-01 18:54:24,361 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 117
[2021-06-01 18:54:24,688 WARN L205 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 113
[2021-06-01 18:54:25,106 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 135
[2021-06-01 18:54:25,391 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 106
[2021-06-01 18:54:25,820 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 138
[2021-06-01 18:54:26,285 WARN L205 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144
[2021-06-01 18:54:26,658 WARN L205 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 124
[2021-06-01 18:54:27,091 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 139
[2021-06-01 18:54:27,613 WARN L205 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 152
[2021-06-01 18:54:27,941 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 121
[2021-06-01 18:54:28,295 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 122
[2021-06-01 18:54:28,781 WARN L205 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 147
[2021-06-01 18:54:29,090 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 116
[2021-06-01 18:54:29,522 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 128
[2021-06-01 18:54:29,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:29,555 INFO L93 Difference]: Finished difference Result 875 states and 2620 transitions.
[2021-06-01 18:54:29,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states.
[2021-06-01 18:54:29,556 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:29,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:29,557 INFO L225 Difference]: With dead ends: 875
[2021-06-01 18:54:29,557 INFO L226 Difference]: Without dead ends: 845
[2021-06-01 18:54:29,557 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 6594.8ms TimeCoverageRelationStatistics Valid=241, Invalid=1019, Unknown=0, NotChecked=0, Total=1260
[2021-06-01 18:54:29,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 845 states.
[2021-06-01 18:54:29,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 845 to 433.
[2021-06-01 18:54:29,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433 states, 432 states have (on average 3.1481481481481484) internal successors, (1360), 432 states have internal predecessors, (1360), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:29,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 1360 transitions.
[2021-06-01 18:54:29,563 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 1360 transitions. Word has length 20
[2021-06-01 18:54:29,563 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:29,563 INFO L482 AbstractCegarLoop]: Abstraction has 433 states and 1360 transitions.
[2021-06-01 18:54:29,563 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:29,563 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 1360 transitions.
[2021-06-01 18:54:29,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:29,564 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:29,564 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:29,764 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8835,89 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:29,764 INFO L430 AbstractCegarLoop]: === Iteration 211 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:29,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:29,765 INFO L82 PathProgramCache]: Analyzing trace with hash 643740610, now seen corresponding path program 62 times
[2021-06-01 18:54:29,765 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:29,765 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85511597]
[2021-06-01 18:54:29,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:29,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:30,182 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:30,182 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:30,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85511597]
[2021-06-01 18:54:30,183 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85511597] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:30,183 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1066215070]
[2021-06-01 18:54:30,183 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 90 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:30,210 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:54:30,210 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:30,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:54:30,211 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:30,795 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,796 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:30,797 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:30,802 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,803 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,803 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:30,804 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:30,809 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,810 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:30,811 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:30,816 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,817 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:30,818 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:30,823 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:30,825 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:30,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:30,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:30,831 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,182 WARN L205 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 75
[2021-06-01 18:54:31,183 INFO L628 ElimStorePlain]: treesize reduction 514, result has 43.5 percent of original size
[2021-06-01 18:54:31,187 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,188 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:31,189 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,193 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:31,194 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,198 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:31,199 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,321 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2021-06-01 18:54:31,321 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:31,326 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,326 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:31,327 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:31,332 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,336 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:31,337 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,456 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:54:31,456 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:31,461 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,461 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,461 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:31,462 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,466 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:31,467 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,471 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:31,472 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:31,473 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:31,681 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59
[2021-06-01 18:54:31,681 INFO L628 ElimStorePlain]: treesize reduction 26, result has 90.8 percent of original size
[2021-06-01 18:54:31,689 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:54:31,689 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1009, output treesize:229
[2021-06-01 18:54:31,863 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73
[2021-06-01 18:54:32,208 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1270, v_prenex_1262, v_prenex_1264, v_prenex_1266, array_6, v_prenex_1276], 1=[array_3, v_prenex_1273, v_prenex_1261, v_prenex_1263, v_prenex_1265, v_prenex_1269]}
[2021-06-01 18:54:32,215 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:32,216 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:32,467 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 74
[2021-06-01 18:54:32,467 INFO L628 ElimStorePlain]: treesize reduction 505, result has 32.3 percent of original size
[2021-06-01 18:54:32,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:32,472 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:32,562 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:32,562 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1264 vanished before elimination
[2021-06-01 18:54:32,566 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:32,567 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:32,655 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:32,655 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:54:32,659 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:32,659 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:32,746 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:32,746 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:54:32,746 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1273 vanished before elimination
[2021-06-01 18:54:32,746 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1261 vanished before elimination
[2021-06-01 18:54:32,747 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1263 vanished before elimination
[2021-06-01 18:54:32,747 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1265 vanished before elimination
[2021-06-01 18:54:32,747 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1269 vanished before elimination
[2021-06-01 18:54:32,749 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:54:32,749 INFO L247 ElimStorePlain]: Needed 5 recursive calls to eliminate 18 variables, input treesize:753, output treesize:180
[2021-06-01 18:54:32,894 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35
[2021-06-01 18:54:33,058 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:33,059 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1066215070] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:33,059 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:33,059 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:54:33,059 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674609255]
[2021-06-01 18:54:33,059 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:54:33,059 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:33,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:54:33,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:54:33,059 INFO L87 Difference]: Start difference. First operand 433 states and 1360 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:33,630 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85
[2021-06-01 18:54:34,083 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 127
[2021-06-01 18:54:34,399 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 103
[2021-06-01 18:54:35,021 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 131
[2021-06-01 18:54:35,370 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 107
[2021-06-01 18:54:36,232 WARN L205 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 159
[2021-06-01 18:54:36,639 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 124
[2021-06-01 18:54:37,028 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 119
[2021-06-01 18:54:37,923 WARN L205 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 166
[2021-06-01 18:54:38,363 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 131
[2021-06-01 18:54:38,766 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 126
[2021-06-01 18:54:39,625 WARN L205 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 161
[2021-06-01 18:54:39,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:39,674 INFO L93 Difference]: Finished difference Result 894 states and 2597 transitions.
[2021-06-01 18:54:39,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:54:39,674 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:39,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:39,676 INFO L225 Difference]: With dead ends: 894
[2021-06-01 18:54:39,676 INFO L226 Difference]: Without dead ends: 849
[2021-06-01 18:54:39,676 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 7113.8ms TimeCoverageRelationStatistics Valid=195, Invalid=861, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:54:39,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 849 states.
[2021-06-01 18:54:39,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 849 to 445.
[2021-06-01 18:54:39,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 445 states, 444 states have (on average 3.168918918918919) internal successors, (1407), 444 states have internal predecessors, (1407), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:39,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 445 states to 445 states and 1407 transitions.
[2021-06-01 18:54:39,682 INFO L78 Accepts]: Start accepts. Automaton has 445 states and 1407 transitions. Word has length 20
[2021-06-01 18:54:39,682 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:39,682 INFO L482 AbstractCegarLoop]: Abstraction has 445 states and 1407 transitions.
[2021-06-01 18:54:39,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:39,682 INFO L276 IsEmpty]: Start isEmpty. Operand 445 states and 1407 transitions.
[2021-06-01 18:54:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:39,683 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:39,683 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:39,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9044,90 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:39,883 INFO L430 AbstractCegarLoop]: === Iteration 212 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:39,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:39,884 INFO L82 PathProgramCache]: Analyzing trace with hash -1336163992, now seen corresponding path program 63 times
[2021-06-01 18:54:39,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:39,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327960013]
[2021-06-01 18:54:39,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:40,233 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:40,233 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:40,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327960013]
[2021-06-01 18:54:40,233 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1327960013] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:40,233 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [360896321]
[2021-06-01 18:54:40,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 91 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:40,260 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:54:40,261 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:40,261 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:54:40,262 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:40,893 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,893 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:40,895 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:40,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,900 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,900 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:40,901 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:40,906 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:40,906 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:40,911 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,912 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:40,913 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:40,917 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,918 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:40,919 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:40,923 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:40,923 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:40,924 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,206 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68
[2021-06-01 18:54:41,206 INFO L628 ElimStorePlain]: treesize reduction 389, result has 45.6 percent of original size
[2021-06-01 18:54:41,211 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,211 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:41,212 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,217 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,217 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,217 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:54:41,218 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,223 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,223 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:41,224 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,432 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60
[2021-06-01 18:54:41,432 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:54:41,437 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,437 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:41,438 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,442 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,443 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,443 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:41,444 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,448 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:41,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:41,449 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:41,549 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:41,554 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:54:41,555 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:919, output treesize:234
[2021-06-01 18:54:41,988 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 83
[2021-06-01 18:54:42,210 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1297, v_prenex_1299, array_6, v_prenex_1301, v_prenex_1303, v_prenex_1305], 1=[array_3, v_prenex_1296, v_prenex_1298, v_prenex_1300, v_prenex_1302, v_prenex_1304]}
[2021-06-01 18:54:42,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:42,220 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:42,229 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:42,238 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:42,247 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:42,256 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:42,265 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,608 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 86
[2021-06-01 18:54:42,608 INFO L628 ElimStorePlain]: treesize reduction 1214, result has 14.9 percent of original size
[2021-06-01 18:54:42,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:42,614 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,697 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:42,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:42,703 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,781 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:42,786 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:42,787 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,863 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:42,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:42,869 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,873 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:42,873 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:42,939 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:42,940 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:42,999 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:42,999 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:54:43,000 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1296 vanished before elimination
[2021-06-01 18:54:43,000 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1298 vanished before elimination
[2021-06-01 18:54:43,000 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1300 vanished before elimination
[2021-06-01 18:54:43,000 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1302 vanished before elimination
[2021-06-01 18:54:43,000 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1304 vanished before elimination
[2021-06-01 18:54:43,002 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:54:43,002 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1531, output treesize:107
[2021-06-01 18:54:43,138 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:43,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [360896321] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:43,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:43,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:54:43,139 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147593113]
[2021-06-01 18:54:43,139 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:54:43,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:43,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:54:43,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=299, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:54:43,139 INFO L87 Difference]: Start difference. First operand 445 states and 1407 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:43,696 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76
[2021-06-01 18:54:43,987 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83
[2021-06-01 18:54:44,414 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 136
[2021-06-01 18:54:44,864 WARN L205 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 135
[2021-06-01 18:54:45,211 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77
[2021-06-01 18:54:45,369 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63
[2021-06-01 18:54:45,615 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84
[2021-06-01 18:54:45,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:45,669 INFO L93 Difference]: Finished difference Result 682 states and 2056 transitions.
[2021-06-01 18:54:45,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:54:45,669 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:45,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:45,670 INFO L225 Difference]: With dead ends: 682
[2021-06-01 18:54:45,670 INFO L226 Difference]: Without dead ends: 634
[2021-06-01 18:54:45,670 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 3084.1ms TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:54:45,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states.
[2021-06-01 18:54:45,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 451.
[2021-06-01 18:54:45,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 3.1622222222222223) internal successors, (1423), 450 states have internal predecessors, (1423), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:45,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 1423 transitions.
[2021-06-01 18:54:45,675 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 1423 transitions. Word has length 20
[2021-06-01 18:54:45,675 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:45,675 INFO L482 AbstractCegarLoop]: Abstraction has 451 states and 1423 transitions.
[2021-06-01 18:54:45,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:45,675 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 1423 transitions.
[2021-06-01 18:54:45,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:45,676 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:45,676 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:45,876 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9190,91 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:45,876 INFO L430 AbstractCegarLoop]: === Iteration 213 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:45,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:45,877 INFO L82 PathProgramCache]: Analyzing trace with hash -856879316, now seen corresponding path program 64 times
[2021-06-01 18:54:45,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:45,877 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131693706]
[2021-06-01 18:54:45,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:45,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:46,143 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:46,144 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:46,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131693706]
[2021-06-01 18:54:46,144 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131693706] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:46,144 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742623444]
[2021-06-01 18:54:46,144 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 92 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:46,175 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:54:46,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:46,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:54:46,177 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:46,999 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,000 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:47,001 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,007 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,008 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,008 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:47,009 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,015 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,016 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:47,017 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,023 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,024 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,024 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:47,025 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,031 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,032 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:47,033 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,039 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:47,040 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,531 WARN L205 SmtUtils]: Spent 490.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84
[2021-06-01 18:54:47,531 INFO L628 ElimStorePlain]: treesize reduction 600, result has 45.0 percent of original size
[2021-06-01 18:54:47,536 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,537 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:47,538 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,543 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,544 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,544 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:47,545 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,550 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:47,551 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,749 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 80
[2021-06-01 18:54:47,749 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:47,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:47,756 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,761 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,761 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,761 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:47,762 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:47,767 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:47,767 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:47,768 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,110 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74
[2021-06-01 18:54:48,110 INFO L628 ElimStorePlain]: treesize reduction 36, result has 91.7 percent of original size
[2021-06-01 18:54:48,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:48,116 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:48,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:48,118 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,123 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:48,123 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:48,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:48,124 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,128 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:48,129 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,277 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:54:48,278 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:48,285 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:54:48,285 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:321
[2021-06-01 18:54:48,541 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84
[2021-06-01 18:54:48,790 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1321, array_6, v_prenex_1323, v_prenex_1325, v_prenex_1327], 1=[array_3, v_prenex_1320, v_prenex_1322, v_prenex_1324, v_prenex_1326]}
[2021-06-01 18:54:48,799 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:48,801 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:48,811 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:48,820 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:48,830 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,839 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:48,840 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:48,848 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:54:48,849 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:49,252 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 86
[2021-06-01 18:54:49,252 INFO L628 ElimStorePlain]: treesize reduction 1291, result has 18.0 percent of original size
[2021-06-01 18:54:49,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:49,258 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:49,368 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:54:49,368 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:49,373 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:49,374 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:49,481 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:54:49,482 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:49,486 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:49,487 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:49,591 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:54:49,591 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:49,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:54:49,596 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:49,700 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 63
[2021-06-01 18:54:49,700 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:49,700 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:54:49,700 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1320 vanished before elimination
[2021-06-01 18:54:49,700 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1322 vanished before elimination
[2021-06-01 18:54:49,700 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1324 vanished before elimination
[2021-06-01 18:54:49,700 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1326 vanished before elimination
[2021-06-01 18:54:49,703 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 10 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:54:49,703 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 15 variables, input treesize:1771, output treesize:216
[2021-06-01 18:54:49,870 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36
[2021-06-01 18:54:50,043 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:54:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:50,122 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742623444] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:50,122 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:50,122 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:54:50,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038003853]
[2021-06-01 18:54:50,122 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:54:50,122 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:50,122 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:54:50,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:54:50,123 INFO L87 Difference]: Start difference. First operand 451 states and 1423 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:50,783 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 113
[2021-06-01 18:54:51,226 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 118
[2021-06-01 18:54:51,732 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132
[2021-06-01 18:54:52,125 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 112
[2021-06-01 18:54:52,404 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86
[2021-06-01 18:54:52,784 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71
[2021-06-01 18:54:53,074 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88
[2021-06-01 18:54:53,391 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 93
[2021-06-01 18:54:53,574 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77
[2021-06-01 18:54:53,984 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78
[2021-06-01 18:54:54,313 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95
[2021-06-01 18:54:54,516 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80
[2021-06-01 18:54:54,675 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:54,675 INFO L93 Difference]: Finished difference Result 807 states and 2413 transitions.
[2021-06-01 18:54:54,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states.
[2021-06-01 18:54:54,676 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:54,676 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:54,677 INFO L225 Difference]: With dead ends: 807
[2021-06-01 18:54:54,677 INFO L226 Difference]: Without dead ends: 735
[2021-06-01 18:54:54,677 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 4985.0ms TimeCoverageRelationStatistics Valid=203, Invalid=1203, Unknown=0, NotChecked=0, Total=1406
[2021-06-01 18:54:54,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 735 states.
[2021-06-01 18:54:54,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 735 to 448.
[2021-06-01 18:54:54,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 3.1655480984340043) internal successors, (1415), 447 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:54,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1415 transitions.
[2021-06-01 18:54:54,682 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1415 transitions. Word has length 20
[2021-06-01 18:54:54,682 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:54,682 INFO L482 AbstractCegarLoop]: Abstraction has 448 states and 1415 transitions.
[2021-06-01 18:54:54,682 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:54,683 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1415 transitions.
[2021-06-01 18:54:54,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:54,683 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:54,683 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:54,883 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 92 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9336
[2021-06-01 18:54:54,884 INFO L430 AbstractCegarLoop]: === Iteration 214 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:54,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:54,884 INFO L82 PathProgramCache]: Analyzing trace with hash -321649514, now seen corresponding path program 65 times
[2021-06-01 18:54:54,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:54,884 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312797357]
[2021-06-01 18:54:54,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:54,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:55,045 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:55,045 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:55,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312797357]
[2021-06-01 18:54:55,045 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312797357] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:55,045 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1944201004]
[2021-06-01 18:54:55,046 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 93 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:55,072 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:54:55,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:55,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:54:55,074 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:55,320 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:55,321 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:54:55,326 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:55,330 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,334 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:55,338 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:55,342 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,346 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:55,347 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,351 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,355 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,359 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:55,360 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:55,364 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,367 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:54:55,368 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,372 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:55,372 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,377 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:55,381 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:55,386 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,389 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,390 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:54:55,394 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,398 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:54:55,399 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,402 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:55,403 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:55,408 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:55,412 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,415 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:55,416 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:55,420 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:55,584 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41
[2021-06-01 18:54:55,585 INFO L628 ElimStorePlain]: treesize reduction 266, result has 44.6 percent of original size
[2021-06-01 18:54:55,586 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:54:55,586 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 1 variables, input treesize:1039, output treesize:214
[2021-06-01 18:54:55,976 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37
[2021-06-01 18:54:56,133 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:54:56,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:56,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1944201004] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:56,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:54:56,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:54:56,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638726920]
[2021-06-01 18:54:56,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:54:56,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:54:56,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:54:56,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:54:56,210 INFO L87 Difference]: Start difference. First operand 448 states and 1415 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:56,743 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 48
[2021-06-01 18:54:57,017 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77
[2021-06-01 18:54:57,259 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65
[2021-06-01 18:54:57,564 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75
[2021-06-01 18:54:57,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:54:57,600 INFO L93 Difference]: Finished difference Result 686 states and 2063 transitions.
[2021-06-01 18:54:57,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:54:57,600 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:54:57,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:54:57,601 INFO L225 Difference]: With dead ends: 686
[2021-06-01 18:54:57,601 INFO L226 Difference]: Without dead ends: 671
[2021-06-01 18:54:57,601 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1803.6ms TimeCoverageRelationStatistics Valid=111, Invalid=591, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:54:57,602 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 671 states.
[2021-06-01 18:54:57,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 671 to 448.
[2021-06-01 18:54:57,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 3.1655480984340043) internal successors, (1415), 447 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:57,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1415 transitions.
[2021-06-01 18:54:57,606 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1415 transitions. Word has length 20
[2021-06-01 18:54:57,606 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:54:57,606 INFO L482 AbstractCegarLoop]: Abstraction has 448 states and 1415 transitions.
[2021-06-01 18:54:57,606 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:54:57,607 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1415 transitions.
[2021-06-01 18:54:57,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:54:57,607 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:54:57,607 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:54:57,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 93 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9534
[2021-06-01 18:54:57,808 INFO L430 AbstractCegarLoop]: === Iteration 215 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:54:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:54:57,808 INFO L82 PathProgramCache]: Analyzing trace with hash -2020369902, now seen corresponding path program 66 times
[2021-06-01 18:54:57,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:54:57,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609250387]
[2021-06-01 18:54:57,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:54:57,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:54:58,010 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:54:58,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:54:58,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609250387]
[2021-06-01 18:54:58,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609250387] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:54:58,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519994743]
[2021-06-01 18:54:58,010 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 94 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:54:58,044 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:54:58,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:54:58,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:54:58,046 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:54:58,873 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,873 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:54:58,875 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:58,881 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,882 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:58,883 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:58,889 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,889 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:54:58,890 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:58,897 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,897 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:54:58,898 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:58,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:58,907 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:58,913 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:58,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:54:58,914 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,352 WARN L205 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85
[2021-06-01 18:54:59,352 INFO L628 ElimStorePlain]: treesize reduction 624, result has 41.8 percent of original size
[2021-06-01 18:54:59,357 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,358 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:59,359 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,364 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,364 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,365 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:59,366 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,371 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:59,372 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,715 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 81
[2021-06-01 18:54:59,716 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.8 percent of original size
[2021-06-01 18:54:59,721 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,721 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:59,722 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,727 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,728 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:59,729 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,734 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:59,735 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,900 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:54:59,900 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:54:59,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,905 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:54:59,906 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,911 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,912 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:54:59,913 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:54:59,918 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:54:59,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:54:59,919 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,078 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:55:00,079 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:00,089 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:55:00,089 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1273, output treesize:367
[2021-06-01 18:55:00,343 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 103
[2021-06-01 18:55:00,593 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1350, v_prenex_1352, v_prenex_1354, array_6, v_prenex_1356, v_prenex_1346, v_prenex_1348], 1=[array_0, v_prenex_1351, v_prenex_1353, v_prenex_1345, v_prenex_1355, v_prenex_1347, v_prenex_1349]}
[2021-06-01 18:55:00,603 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:00,604 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:00,614 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,623 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:00,624 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:00,634 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:00,644 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:00,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:00,654 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,171 WARN L205 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 107
[2021-06-01 18:55:01,172 INFO L628 ElimStorePlain]: treesize reduction 1651, result has 15.9 percent of original size
[2021-06-01 18:55:01,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:01,179 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,313 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2021-06-01 18:55:01,313 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:01,320 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,449 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:55:01,449 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:01,456 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,583 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:55:01,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,596 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:01,597 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,603 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:01,604 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,709 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:55:01,709 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:55:01,715 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,814 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:01,820 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:01,922 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:55:01,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1351 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1353 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1345 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1355 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1347 vanished before elimination
[2021-06-01 18:55:01,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1349 vanished before elimination
[2021-06-01 18:55:01,925 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:55:01,925 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2085, output treesize:175
[2021-06-01 18:55:02,089 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:55:02,306 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:02,306 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519994743] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:02,306 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:02,306 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:02,306 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269647118]
[2021-06-01 18:55:02,306 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:02,306 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:02,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:02,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:02,307 INFO L87 Difference]: Start difference. First operand 448 states and 1415 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:02,829 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 104
[2021-06-01 18:55:03,214 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 111
[2021-06-01 18:55:03,809 WARN L205 SmtUtils]: Spent 493.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 190
[2021-06-01 18:55:04,100 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81
[2021-06-01 18:55:04,531 WARN L205 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96
[2021-06-01 18:55:04,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:04,581 INFO L93 Difference]: Finished difference Result 686 states and 2057 transitions.
[2021-06-01 18:55:04,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:55:04,581 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:04,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:04,582 INFO L225 Difference]: With dead ends: 686
[2021-06-01 18:55:04,582 INFO L226 Difference]: Without dead ends: 664
[2021-06-01 18:55:04,582 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 2915.4ms TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:55:04,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 664 states.
[2021-06-01 18:55:04,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 664 to 451.
[2021-06-01 18:55:04,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 451 states, 450 states have (on average 3.168888888888889) internal successors, (1426), 450 states have internal predecessors, (1426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:04,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 451 states to 451 states and 1426 transitions.
[2021-06-01 18:55:04,588 INFO L78 Accepts]: Start accepts. Automaton has 451 states and 1426 transitions. Word has length 20
[2021-06-01 18:55:04,588 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:04,588 INFO L482 AbstractCegarLoop]: Abstraction has 451 states and 1426 transitions.
[2021-06-01 18:55:04,588 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:04,588 INFO L276 IsEmpty]: Start isEmpty. Operand 451 states and 1426 transitions.
[2021-06-01 18:55:04,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:04,588 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:04,588 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:04,789 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 94 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9606
[2021-06-01 18:55:04,789 INFO L430 AbstractCegarLoop]: === Iteration 216 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:04,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:04,789 INFO L82 PathProgramCache]: Analyzing trace with hash 2101349702, now seen corresponding path program 67 times
[2021-06-01 18:55:04,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:04,789 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [218126140]
[2021-06-01 18:55:04,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:04,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:04,956 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:04,956 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:04,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [218126140]
[2021-06-01 18:55:04,956 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [218126140] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:04,956 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477307857]
[2021-06-01 18:55:04,956 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 95 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:04,984 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:55:04,984 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:05,791 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:05,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:05,792 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,194 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 124
[2021-06-01 18:55:06,195 INFO L628 ElimStorePlain]: treesize reduction 268, result has 64.1 percent of original size
[2021-06-01 18:55:06,201 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,202 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:06,203 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,209 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:06,210 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,386 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 120
[2021-06-01 18:55:06,386 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:06,393 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,393 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:06,395 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,400 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:06,401 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,553 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 109
[2021-06-01 18:55:06,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:06,559 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,560 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:06,561 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,567 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,567 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:06,568 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,712 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 104
[2021-06-01 18:55:06,712 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:06,718 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:06,719 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,861 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:55:06,861 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:06,867 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,867 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,868 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:06,869 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:06,874 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:06,875 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:06,875 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,016 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 96
[2021-06-01 18:55:07,016 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:07,022 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:07,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:07,023 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,158 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2021-06-01 18:55:07,158 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:07,163 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:07,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:07,164 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,296 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:55:07,296 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:07,305 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:55:07,305 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 16 variables, input treesize:753, output treesize:328
[2021-06-01 18:55:07,536 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 94
[2021-06-01 18:55:07,740 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79
[2021-06-01 18:55:07,906 INFO L446 ElimStorePlain]: Different costs {0=[array_6, v_prenex_1378], 1=[array_0, v_prenex_1377]}
[2021-06-01 18:55:07,910 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:07,911 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,915 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:07,916 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:07,921 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,925 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:07,925 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,929 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:07,930 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:07,933 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:07,934 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:08,058 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45
[2021-06-01 18:55:08,059 INFO L628 ElimStorePlain]: treesize reduction 302, result has 29.8 percent of original size
[2021-06-01 18:55:08,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:08,062 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:08,108 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:08,108 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:55:08,108 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1377 vanished before elimination
[2021-06-01 18:55:08,110 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 4 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:55:08,110 INFO L247 ElimStorePlain]: Needed 8 recursive calls to eliminate 6 variables, input treesize:630, output treesize:105
[2021-06-01 18:55:08,245 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:08,245 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477307857] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:08,245 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:08,245 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:08,245 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964374210]
[2021-06-01 18:55:08,246 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:08,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:08,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:08,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:08,246 INFO L87 Difference]: Start difference. First operand 451 states and 1426 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:08,772 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80
[2021-06-01 18:55:09,068 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 93
[2021-06-01 18:55:09,601 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 170
[2021-06-01 18:55:10,315 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 186
[2021-06-01 18:55:10,537 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72
[2021-06-01 18:55:10,768 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75
[2021-06-01 18:55:10,939 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64
[2021-06-01 18:55:10,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:10,959 INFO L93 Difference]: Finished difference Result 675 states and 2028 transitions.
[2021-06-01 18:55:10,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:55:10,959 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:10,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:10,960 INFO L225 Difference]: With dead ends: 675
[2021-06-01 18:55:10,960 INFO L226 Difference]: Without dead ends: 624
[2021-06-01 18:55:10,960 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 9 SyntacticMatches, 4 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 3212.3ms TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:55:10,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states.
[2021-06-01 18:55:10,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 448.
[2021-06-01 18:55:10,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 448 states, 447 states have (on average 3.1655480984340043) internal successors, (1415), 447 states have internal predecessors, (1415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:10,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 448 states to 448 states and 1415 transitions.
[2021-06-01 18:55:10,965 INFO L78 Accepts]: Start accepts. Automaton has 448 states and 1415 transitions. Word has length 20
[2021-06-01 18:55:10,965 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:10,965 INFO L482 AbstractCegarLoop]: Abstraction has 448 states and 1415 transitions.
[2021-06-01 18:55:10,965 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:10,965 INFO L276 IsEmpty]: Start isEmpty. Operand 448 states and 1415 transitions.
[2021-06-01 18:55:10,965 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:10,965 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:10,965 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:11,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9767,95 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:11,166 INFO L430 AbstractCegarLoop]: === Iteration 217 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:11,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:11,166 INFO L82 PathProgramCache]: Analyzing trace with hash 1049441532, now seen corresponding path program 68 times
[2021-06-01 18:55:11,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:11,166 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1597016335]
[2021-06-01 18:55:11,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:11,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:11,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:11,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:11,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1597016335]
[2021-06-01 18:55:11,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1597016335] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:11,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1451429383]
[2021-06-01 18:55:11,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 96 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:11,384 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:55:11,385 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:11,385 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:55:11,386 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:11,923 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:11,924 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:11,924 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:11,925 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:11,930 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:11,931 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:11,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:55:11,932 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:11,937 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:11,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:11,939 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,241 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96
[2021-06-01 18:55:12,241 INFO L628 ElimStorePlain]: treesize reduction 115, result has 75.2 percent of original size
[2021-06-01 18:55:12,246 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,247 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:12,248 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,253 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,253 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:12,254 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,402 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2021-06-01 18:55:12,402 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:12,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:12,408 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,548 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:55:12,548 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:12,553 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,553 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:12,555 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,559 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:12,560 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,672 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:55:12,673 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:12,677 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:12,679 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,788 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74
[2021-06-01 18:55:12,789 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:12,793 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:12,794 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:12,794 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:12,902 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:55:12,902 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:12,908 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:55:12,909 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:573, output treesize:240
[2021-06-01 18:55:13,117 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86
[2021-06-01 18:55:13,471 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 97
[2021-06-01 18:55:13,699 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85
[2021-06-01 18:55:13,939 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1406, v_prenex_1408, array_6, v_prenex_1410, v_prenex_1402, v_prenex_1404], 1=[v_prenex_1405, v_prenex_1407, array_3, v_prenex_1409, v_prenex_1401, v_prenex_1403]}
[2021-06-01 18:55:13,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:13,949 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:13,957 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:13,958 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:13,966 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:13,967 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:13,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:13,977 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:13,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:13,987 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:13,995 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:13,996 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,334 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 85
[2021-06-01 18:55:14,334 INFO L628 ElimStorePlain]: treesize reduction 1158, result has 15.5 percent of original size
[2021-06-01 18:55:14,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:14,341 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,345 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:14,346 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,413 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:14,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:14,419 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,484 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:14,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:14,490 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,552 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:14,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:14,558 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,624 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:14,628 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:14,629 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:14,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1405 vanished before elimination
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1407 vanished before elimination
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1409 vanished before elimination
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1401 vanished before elimination
[2021-06-01 18:55:14,692 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1403 vanished before elimination
[2021-06-01 18:55:14,694 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:55:14,694 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1543, output treesize:107
[2021-06-01 18:55:14,832 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:14,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1451429383] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:14,832 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:14,832 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:14,832 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072509545]
[2021-06-01 18:55:14,832 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:14,832 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:14,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:14,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:14,833 INFO L87 Difference]: Start difference. First operand 448 states and 1415 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:15,344 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65
[2021-06-01 18:55:15,733 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 131
[2021-06-01 18:55:16,524 WARN L205 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 161
[2021-06-01 18:55:16,662 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62
[2021-06-01 18:55:17,072 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 136
[2021-06-01 18:55:18,124 WARN L205 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 174
[2021-06-01 18:55:18,308 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67
[2021-06-01 18:55:18,672 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76
[2021-06-01 18:55:18,840 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61
[2021-06-01 18:55:19,090 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80
[2021-06-01 18:55:19,262 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65
[2021-06-01 18:55:19,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:19,303 INFO L93 Difference]: Finished difference Result 726 states and 2168 transitions.
[2021-06-01 18:55:19,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:55:19,304 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:19,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:19,305 INFO L225 Difference]: With dead ends: 726
[2021-06-01 18:55:19,305 INFO L226 Difference]: Without dead ends: 663
[2021-06-01 18:55:19,305 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 4951.2ms TimeCoverageRelationStatistics Valid=170, Invalid=886, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:55:19,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 663 states.
[2021-06-01 18:55:19,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 663 to 455.
[2021-06-01 18:55:19,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.1740088105726874) internal successors, (1441), 454 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1441 transitions.
[2021-06-01 18:55:19,310 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1441 transitions. Word has length 20
[2021-06-01 18:55:19,310 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:19,310 INFO L482 AbstractCegarLoop]: Abstraction has 455 states and 1441 transitions.
[2021-06-01 18:55:19,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:19,310 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1441 transitions.
[2021-06-01 18:55:19,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:19,310 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:19,310 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:19,511 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9903,96 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:19,511 INFO L430 AbstractCegarLoop]: === Iteration 218 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:19,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:19,511 INFO L82 PathProgramCache]: Analyzing trace with hash 842433850, now seen corresponding path program 69 times
[2021-06-01 18:55:19,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:19,511 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [920182275]
[2021-06-01 18:55:19,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:19,682 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:19,682 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:19,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [920182275]
[2021-06-01 18:55:19,682 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [920182275] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:19,682 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1873537714]
[2021-06-01 18:55:19,682 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 97 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:19,711 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:55:19,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:19,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:55:19,712 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:20,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,071 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:20,073 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,078 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,078 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,079 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:20,079 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,085 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,085 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:20,086 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,091 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,092 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,092 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:20,093 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,098 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,098 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:20,100 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,104 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:20,106 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,390 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63
[2021-06-01 18:55:20,391 INFO L628 ElimStorePlain]: treesize reduction 409, result has 41.1 percent of original size
[2021-06-01 18:55:20,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:20,395 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,399 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,400 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:20,401 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,405 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,405 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:20,406 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,516 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 59
[2021-06-01 18:55:20,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:20,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:20,521 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,525 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,526 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:20,527 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,531 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:20,531 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:20,532 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:20,709 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53
[2021-06-01 18:55:20,709 INFO L628 ElimStorePlain]: treesize reduction 27, result has 88.6 percent of original size
[2021-06-01 18:55:20,714 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:55:20,714 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:841, output treesize:185
[2021-06-01 18:55:20,891 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69
[2021-06-01 18:55:21,502 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1427, v_prenex_1419, v_prenex_1429, array_6, v_prenex_1421, v_prenex_1435, v_prenex_1423, v_prenex_1425], 1=[v_prenex_1428, v_prenex_1418, array_3, v_prenex_1420, v_prenex_1430, v_prenex_1422, v_prenex_1424, v_prenex_1426]}
[2021-06-01 18:55:21,510 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:21,511 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:21,518 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:21,519 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:21,526 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:21,528 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:21,819 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 90
[2021-06-01 18:55:21,820 INFO L628 ElimStorePlain]: treesize reduction 563, result has 33.3 percent of original size
[2021-06-01 18:55:21,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:21,825 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:21,930 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:55:21,930 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:21,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:21,936 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:22,036 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:22,036 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:55:22,036 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1421 vanished before elimination
[2021-06-01 18:55:22,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:22,041 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:22,137 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:22,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:22,142 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:22,243 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 66
[2021-06-01 18:55:22,243 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:22,247 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:22,248 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:22,336 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1428 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1418 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1420 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1430 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1422 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1424 vanished before elimination
[2021-06-01 18:55:22,337 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1426 vanished before elimination
[2021-06-01 18:55:22,340 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 16 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:55:22,340 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 24 variables, input treesize:942, output treesize:183
[2021-06-01 18:55:22,471 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 31
[2021-06-01 18:55:22,618 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32
[2021-06-01 18:55:22,692 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:22,693 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1873537714] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:22,693 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:22,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:22,693 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681665012]
[2021-06-01 18:55:22,693 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:22,693 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:22,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:22,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:22,693 INFO L87 Difference]: Start difference. First operand 455 states and 1441 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:23,156 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61
[2021-06-01 18:55:23,582 WARN L205 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 95
[2021-06-01 18:55:23,880 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64
[2021-06-01 18:55:24,298 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76
[2021-06-01 18:55:24,783 WARN L205 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82
[2021-06-01 18:55:24,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:24,830 INFO L93 Difference]: Finished difference Result 751 states and 2250 transitions.
[2021-06-01 18:55:24,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:55:24,831 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:24,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:24,832 INFO L225 Difference]: With dead ends: 751
[2021-06-01 18:55:24,832 INFO L226 Difference]: Without dead ends: 736
[2021-06-01 18:55:24,832 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2565.5ms TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:55:24,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states.
[2021-06-01 18:55:24,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 453.
[2021-06-01 18:55:24,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 453 states, 452 states have (on average 3.172566371681416) internal successors, (1434), 452 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:24,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 453 states to 453 states and 1434 transitions.
[2021-06-01 18:55:24,837 INFO L78 Accepts]: Start accepts. Automaton has 453 states and 1434 transitions. Word has length 20
[2021-06-01 18:55:24,837 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:24,837 INFO L482 AbstractCegarLoop]: Abstraction has 453 states and 1434 transitions.
[2021-06-01 18:55:24,837 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:24,837 INFO L276 IsEmpty]: Start isEmpty. Operand 453 states and 1434 transitions.
[2021-06-01 18:55:24,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:24,838 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:24,838 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:25,038 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 97 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10043
[2021-06-01 18:55:25,038 INFO L430 AbstractCegarLoop]: === Iteration 219 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:25,039 INFO L82 PathProgramCache]: Analyzing trace with hash -376201510, now seen corresponding path program 70 times
[2021-06-01 18:55:25,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:25,039 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879668386]
[2021-06-01 18:55:25,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:25,181 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:25,181 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:25,181 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879668386]
[2021-06-01 18:55:25,182 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879668386] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:25,182 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247414047]
[2021-06-01 18:55:25,182 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 98 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:25,209 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:55:25,209 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:25,209 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:55:25,210 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:25,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,708 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,709 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:25,709 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:25,715 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:25,715 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:25,721 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,721 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:25,722 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:25,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,728 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,729 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:25,729 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:25,735 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,735 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:25,736 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:25,741 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:25,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:25,743 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,086 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69
[2021-06-01 18:55:26,086 INFO L628 ElimStorePlain]: treesize reduction 444, result has 43.5 percent of original size
[2021-06-01 18:55:26,090 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,091 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:26,092 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,096 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,096 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:26,097 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,102 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:26,102 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,244 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:55:26,244 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:26,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:26,250 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,255 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,255 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:26,256 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,261 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:26,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:26,262 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:26,499 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59
[2021-06-01 18:55:26,500 INFO L628 ElimStorePlain]: treesize reduction 40, result has 85.9 percent of original size
[2021-06-01 18:55:26,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:55:26,505 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:235
[2021-06-01 18:55:26,731 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2021-06-01 18:55:27,103 INFO L446 ElimStorePlain]: Different costs {0=[array_6, v_prenex_1444, v_prenex_1446, v_prenex_1448], 1=[array_3, v_prenex_1443, v_prenex_1445, v_prenex_1447]}
[2021-06-01 18:55:27,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:27,110 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:27,118 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,125 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:27,125 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:27,133 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,140 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:27,141 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:55:27,148 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,503 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 79
[2021-06-01 18:55:27,503 INFO L628 ElimStorePlain]: treesize reduction 953, result has 23.9 percent of original size
[2021-06-01 18:55:27,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:27,509 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,636 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 74
[2021-06-01 18:55:27,636 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:27,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:27,641 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,645 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:27,646 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,879 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65
[2021-06-01 18:55:27,879 INFO L628 ElimStorePlain]: treesize reduction 8, result has 97.0 percent of original size
[2021-06-01 18:55:27,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:27,884 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:27,993 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 60
[2021-06-01 18:55:27,993 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:27,993 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:27,993 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1443 vanished before elimination
[2021-06-01 18:55:27,993 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1445 vanished before elimination
[2021-06-01 18:55:27,993 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1447 vanished before elimination
[2021-06-01 18:55:27,996 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:55:27,996 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:1456, output treesize:240
[2021-06-01 18:55:28,153 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 33
[2021-06-01 18:55:28,363 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:28,363 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247414047] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:28,363 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:28,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:28,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198840083]
[2021-06-01 18:55:28,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:28,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:28,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:28,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:28,364 INFO L87 Difference]: Start difference. First operand 453 states and 1434 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:28,821 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65
[2021-06-01 18:55:29,185 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93
[2021-06-01 18:55:29,522 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62
[2021-06-01 18:55:29,888 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69
[2021-06-01 18:55:30,317 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 78
[2021-06-01 18:55:30,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:30,349 INFO L93 Difference]: Finished difference Result 718 states and 2169 transitions.
[2021-06-01 18:55:30,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:55:30,350 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:30,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:30,351 INFO L225 Difference]: With dead ends: 718
[2021-06-01 18:55:30,351 INFO L226 Difference]: Without dead ends: 703
[2021-06-01 18:55:30,351 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 2526.6ms TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:55:30,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 703 states.
[2021-06-01 18:55:30,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 703 to 455.
[2021-06-01 18:55:30,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.1740088105726874) internal successors, (1441), 454 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:30,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1441 transitions.
[2021-06-01 18:55:30,357 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1441 transitions. Word has length 20
[2021-06-01 18:55:30,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:30,357 INFO L482 AbstractCegarLoop]: Abstraction has 455 states and 1441 transitions.
[2021-06-01 18:55:30,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:30,357 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1441 transitions.
[2021-06-01 18:55:30,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:30,357 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:30,357 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:30,558 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 98 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10198
[2021-06-01 18:55:30,558 INFO L430 AbstractCegarLoop]: === Iteration 220 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:30,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:30,558 INFO L82 PathProgramCache]: Analyzing trace with hash 1645547448, now seen corresponding path program 71 times
[2021-06-01 18:55:30,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:30,558 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200458161]
[2021-06-01 18:55:30,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:30,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:30,694 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:30,694 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:30,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200458161]
[2021-06-01 18:55:30,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200458161] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:30,694 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [691525951]
[2021-06-01 18:55:30,694 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 99 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:30,721 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:55:30,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:30,722 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:55:30,723 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:30,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:30,898 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:55:30,904 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:30,909 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,914 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:30,915 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:30,924 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,929 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:30,930 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:30,936 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:30,941 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:30,947 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:30,952 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:30,958 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,963 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:30,964 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:30,970 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:55:30,976 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:30,982 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:30,988 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,993 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:30,994 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:30,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:31,000 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,005 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:55:31,005 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,010 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:31,011 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:31,016 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:31,023 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,027 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:31,028 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:31,033 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:55:31,038 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:31,042 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,047 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:31,047 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:55:31,052 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:31,057 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:31,062 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:31,067 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 2 xjuncts.
[2021-06-01 18:55:31,071 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:31,072 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,076 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:31,076 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:31,081 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,085 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:31,085 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:55:31,090 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:31,275 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 36
[2021-06-01 18:55:31,276 INFO L628 ElimStorePlain]: treesize reduction 530, result has 24.0 percent of original size
[2021-06-01 18:55:31,277 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 7 xjuncts.
[2021-06-01 18:55:31,277 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1681, output treesize:167
[2021-06-01 18:55:31,571 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42
[2021-06-01 18:55:31,723 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 36
[2021-06-01 18:55:32,021 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37
[2021-06-01 18:55:32,089 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:32,089 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [691525951] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:32,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:32,090 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:55:32,090 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238531519]
[2021-06-01 18:55:32,090 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:55:32,090 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:32,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:55:32,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:55:32,090 INFO L87 Difference]: Start difference. First operand 455 states and 1441 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:32,586 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53
[2021-06-01 18:55:32,811 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49
[2021-06-01 18:55:33,154 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67
[2021-06-01 18:55:33,418 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64
[2021-06-01 18:55:33,788 WARN L205 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 70
[2021-06-01 18:55:33,983 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57
[2021-06-01 18:55:34,261 WARN L205 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62
[2021-06-01 18:55:34,483 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64
[2021-06-01 18:55:34,817 WARN L205 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69
[2021-06-01 18:55:34,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:34,855 INFO L93 Difference]: Finished difference Result 717 states and 2149 transitions.
[2021-06-01 18:55:34,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:55:34,855 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:34,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:34,856 INFO L225 Difference]: With dead ends: 717
[2021-06-01 18:55:34,856 INFO L226 Difference]: Without dead ends: 687
[2021-06-01 18:55:34,856 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 3176.9ms TimeCoverageRelationStatistics Valid=149, Invalid=843, Unknown=0, NotChecked=0, Total=992
[2021-06-01 18:55:34,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 687 states.
[2021-06-01 18:55:34,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 687 to 455.
[2021-06-01 18:55:34,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 455 states, 454 states have (on average 3.1740088105726874) internal successors, (1441), 454 states have internal predecessors, (1441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:34,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 455 states to 455 states and 1441 transitions.
[2021-06-01 18:55:34,861 INFO L78 Accepts]: Start accepts. Automaton has 455 states and 1441 transitions. Word has length 20
[2021-06-01 18:55:34,862 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:34,862 INFO L482 AbstractCegarLoop]: Abstraction has 455 states and 1441 transitions.
[2021-06-01 18:55:34,862 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:34,862 INFO L276 IsEmpty]: Start isEmpty. Operand 455 states and 1441 transitions.
[2021-06-01 18:55:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:34,862 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:34,862 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:35,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10328,99 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:35,063 INFO L430 AbstractCegarLoop]: === Iteration 221 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:35,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:35,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1329436092, now seen corresponding path program 72 times
[2021-06-01 18:55:35,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:35,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814405160]
[2021-06-01 18:55:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:35,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:35,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:35,241 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:35,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814405160]
[2021-06-01 18:55:35,242 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814405160] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:35,242 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [305283027]
[2021-06-01 18:55:35,242 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 100 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:35,275 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:55:35,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:35,276 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:55:35,277 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:35,815 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,815 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:35,816 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:35,821 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,822 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:35,823 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:35,828 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,828 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:35,829 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:35,834 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,835 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:35,836 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:35,841 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,841 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:35,842 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:35,847 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:35,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:35,848 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,232 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71
[2021-06-01 18:55:36,232 INFO L628 ElimStorePlain]: treesize reduction 460, result has 45.4 percent of original size
[2021-06-01 18:55:36,237 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,237 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:36,238 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:36,244 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,248 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:36,248 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,389 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:55:36,389 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:36,393 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,394 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:36,395 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,400 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,400 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:36,400 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:36,401 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,406 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:36,407 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:36,648 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59
[2021-06-01 18:55:36,649 INFO L628 ElimStorePlain]: treesize reduction 42, result has 85.3 percent of original size
[2021-06-01 18:55:36,654 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:55:36,654 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:235
[2021-06-01 18:55:36,875 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76
[2021-06-01 18:55:37,238 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 83
[2021-06-01 18:55:37,528 INFO L446 ElimStorePlain]: Different costs {0=[array_6, v_prenex_1463, v_prenex_1465, v_prenex_1467, v_prenex_1469], 1=[array_3, v_prenex_1462, v_prenex_1464, v_prenex_1466, v_prenex_1468]}
[2021-06-01 18:55:37,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:55:37,538 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:37,546 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,554 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:55:37,555 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:55:37,564 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:37,573 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,581 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:37,582 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:37,995 WARN L205 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 84
[2021-06-01 18:55:37,995 INFO L628 ElimStorePlain]: treesize reduction 1251, result has 18.4 percent of original size
[2021-06-01 18:55:38,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:38,001 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:38,110 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:55:38,110 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:38,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:38,116 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:38,221 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:55:38,222 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:38,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:38,227 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:38,331 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:55:38,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:38,335 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:38,336 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:38,439 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63
[2021-06-01 18:55:38,440 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:38,440 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:38,440 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1462 vanished before elimination
[2021-06-01 18:55:38,440 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1464 vanished before elimination
[2021-06-01 18:55:38,440 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1466 vanished before elimination
[2021-06-01 18:55:38,440 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1468 vanished before elimination
[2021-06-01 18:55:38,443 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 10 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:55:38,443 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 15 variables, input treesize:1729, output treesize:216
[2021-06-01 18:55:38,609 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36
[2021-06-01 18:55:38,767 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:55:38,854 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:38,855 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [305283027] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:38,855 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:38,855 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:38,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882971750]
[2021-06-01 18:55:38,855 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:38,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:38,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:38,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:38,855 INFO L87 Difference]: Start difference. First operand 455 states and 1441 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:39,646 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 96
[2021-06-01 18:55:39,984 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96
[2021-06-01 18:55:40,622 WARN L205 SmtUtils]: Spent 570.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 122
[2021-06-01 18:55:41,230 WARN L205 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 121
[2021-06-01 18:55:41,514 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78
[2021-06-01 18:55:41,740 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68
[2021-06-01 18:55:42,017 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81
[2021-06-01 18:55:42,309 WARN L205 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85
[2021-06-01 18:55:42,678 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75
[2021-06-01 18:55:42,982 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88
[2021-06-01 18:55:43,126 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66
[2021-06-01 18:55:43,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:43,244 INFO L93 Difference]: Finished difference Result 820 states and 2381 transitions.
[2021-06-01 18:55:43,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:55:43,244 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:43,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:43,245 INFO L225 Difference]: With dead ends: 820
[2021-06-01 18:55:43,245 INFO L226 Difference]: Without dead ends: 748
[2021-06-01 18:55:43,245 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 4973.2ms TimeCoverageRelationStatistics Valid=178, Invalid=944, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:55:43,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states.
[2021-06-01 18:55:43,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 458.
[2021-06-01 18:55:43,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458 states, 457 states have (on average 3.177242888402626) internal successors, (1452), 457 states have internal predecessors, (1452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:43,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458 states to 458 states and 1452 transitions.
[2021-06-01 18:55:43,251 INFO L78 Accepts]: Start accepts. Automaton has 458 states and 1452 transitions. Word has length 20
[2021-06-01 18:55:43,251 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:43,251 INFO L482 AbstractCegarLoop]: Abstraction has 458 states and 1452 transitions.
[2021-06-01 18:55:43,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:43,251 INFO L276 IsEmpty]: Start isEmpty. Operand 458 states and 1452 transitions.
[2021-06-01 18:55:43,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:43,251 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:43,251 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:43,456 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 100 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10394
[2021-06-01 18:55:43,456 INFO L430 AbstractCegarLoop]: === Iteration 222 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:43,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:43,457 INFO L82 PathProgramCache]: Analyzing trace with hash -1554042634, now seen corresponding path program 73 times
[2021-06-01 18:55:43,457 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:43,457 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382818988]
[2021-06-01 18:55:43,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:43,645 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:43,646 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:43,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382818988]
[2021-06-01 18:55:43,646 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382818988] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:43,646 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790822692]
[2021-06-01 18:55:43,646 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 101 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:43,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:43,673 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:55:43,676 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:44,179 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,180 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:44,181 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,185 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,186 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:44,187 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,191 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,192 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:44,193 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,197 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,198 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,198 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:44,198 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,203 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,204 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,204 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:44,205 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,209 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:44,210 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,545 WARN L205 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67
[2021-06-01 18:55:44,545 INFO L628 ElimStorePlain]: treesize reduction 431, result has 45.6 percent of original size
[2021-06-01 18:55:44,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:44,550 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,555 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:44,556 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,560 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:44,560 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,819 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61
[2021-06-01 18:55:44,820 INFO L628 ElimStorePlain]: treesize reduction 37, result has 89.1 percent of original size
[2021-06-01 18:55:44,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:44,825 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,829 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:44,830 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,833 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:44,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:44,834 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:44,931 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:44,936 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 4 dim-0 vars, and 7 xjuncts.
[2021-06-01 18:55:44,936 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:895, output treesize:191
[2021-06-01 18:55:45,127 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68
[2021-06-01 18:55:45,319 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1480, v_prenex_1482, array_6, v_prenex_1478], 1=[array_3, v_prenex_1481, v_prenex_1477, v_prenex_1479]}
[2021-06-01 18:55:45,325 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:45,326 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,333 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:45,334 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:45,340 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:45,347 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,354 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:45,355 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,360 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:55:45,361 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,703 WARN L205 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73
[2021-06-01 18:55:45,703 INFO L628 ElimStorePlain]: treesize reduction 891, result has 23.1 percent of original size
[2021-06-01 18:55:45,707 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:45,708 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,820 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 68
[2021-06-01 18:55:45,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:45,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:45,825 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:45,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:45,829 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:46,030 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60
[2021-06-01 18:55:46,030 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:55:46,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:46,034 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:46,134 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:46,134 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:46,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1481 vanished before elimination
[2021-06-01 18:55:46,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1477 vanished before elimination
[2021-06-01 18:55:46,134 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1479 vanished before elimination
[2021-06-01 18:55:46,137 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:55:46,137 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:1324, output treesize:190
[2021-06-01 18:55:46,277 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 32
[2021-06-01 18:55:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:46,574 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790822692] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:46,574 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:46,574 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:46,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822144516]
[2021-06-01 18:55:46,574 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:46,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:46,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:46,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:46,575 INFO L87 Difference]: Start difference. First operand 458 states and 1452 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:47,277 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89
[2021-06-01 18:55:47,589 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91
[2021-06-01 18:55:47,879 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68
[2021-06-01 18:55:48,078 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62
[2021-06-01 18:55:48,385 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76
[2021-06-01 18:55:48,740 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77
[2021-06-01 18:55:49,203 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70
[2021-06-01 18:55:49,618 WARN L205 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88
[2021-06-01 18:55:49,776 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70
[2021-06-01 18:55:50,176 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82
[2021-06-01 18:55:50,610 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75
[2021-06-01 18:55:51,053 WARN L205 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 93
[2021-06-01 18:55:51,211 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73
[2021-06-01 18:55:51,634 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83
[2021-06-01 18:55:51,923 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75
[2021-06-01 18:55:51,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:51,954 INFO L93 Difference]: Finished difference Result 1034 states and 2950 transitions.
[2021-06-01 18:55:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states.
[2021-06-01 18:55:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:51,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:51,956 INFO L225 Difference]: With dead ends: 1034
[2021-06-01 18:55:51,956 INFO L226 Difference]: Without dead ends: 962
[2021-06-01 18:55:51,956 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 5575.5ms TimeCoverageRelationStatistics Valid=244, Invalid=1162, Unknown=0, NotChecked=0, Total=1406
[2021-06-01 18:55:51,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 962 states.
[2021-06-01 18:55:51,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 962 to 463.
[2021-06-01 18:55:51,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 3.2012987012987013) internal successors, (1479), 462 states have internal predecessors, (1479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:51,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1479 transitions.
[2021-06-01 18:55:51,962 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1479 transitions. Word has length 20
[2021-06-01 18:55:51,962 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:51,962 INFO L482 AbstractCegarLoop]: Abstraction has 463 states and 1479 transitions.
[2021-06-01 18:55:51,962 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:51,962 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1479 transitions.
[2021-06-01 18:55:51,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:51,963 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:51,963 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:52,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10535,101 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:52,163 INFO L430 AbstractCegarLoop]: === Iteration 223 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:52,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:52,163 INFO L82 PathProgramCache]: Analyzing trace with hash -564982086, now seen corresponding path program 74 times
[2021-06-01 18:55:52,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:52,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160058829]
[2021-06-01 18:55:52,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:52,357 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:52,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:52,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160058829]
[2021-06-01 18:55:52,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160058829] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:52,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1215853280]
[2021-06-01 18:55:52,357 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 102 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:52,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:55:52,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:55:52,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:55:52,385 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:55:52,877 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:52,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:52,878 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,206 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 98
[2021-06-01 18:55:53,207 INFO L628 ElimStorePlain]: treesize reduction 203, result has 64.1 percent of original size
[2021-06-01 18:55:53,212 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,212 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:53,213 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,218 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,218 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:55:53,219 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,355 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2021-06-01 18:55:53,355 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:53,360 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:55:53,361 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,496 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:55:53,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:53,501 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,501 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:53,502 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,506 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,507 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:53,507 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,636 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 83
[2021-06-01 18:55:53,637 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:53,641 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,641 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:53,643 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,646 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:53,647 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,751 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 74
[2021-06-01 18:55:53,751 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:53,755 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:55:53,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:53,756 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:53,858 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:55:53,858 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:53,864 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:55:53,864 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:573, output treesize:232
[2021-06-01 18:55:54,067 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 84
[2021-06-01 18:55:54,268 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1505, v_prenex_1497, array_6, v_prenex_1499, v_prenex_1501, v_prenex_1503], 1=[v_prenex_1504, array_3, v_prenex_1496, v_prenex_1498, v_prenex_1500, v_prenex_1502]}
[2021-06-01 18:55:54,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:55:54,277 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,285 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:54,285 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,293 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:55:54,294 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:54,302 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,310 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:54,311 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,319 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:55:54,320 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,712 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 89
[2021-06-01 18:55:54,713 INFO L628 ElimStorePlain]: treesize reduction 1270, result has 16.9 percent of original size
[2021-06-01 18:55:54,718 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:54,719 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,723 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:55:54,724 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,822 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:54,826 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:55:54,827 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:54,914 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:54,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:54,920 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:55,010 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:55,015 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:55:55,016 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:55,102 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:55,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:55:55,107 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:55:55,190 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1504 vanished before elimination
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1496 vanished before elimination
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1498 vanished before elimination
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1500 vanished before elimination
[2021-06-01 18:55:55,190 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1502 vanished before elimination
[2021-06-01 18:55:55,192 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:55:55,193 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1643, output treesize:144
[2021-06-01 18:55:55,332 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:55:55,475 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 35 DAG size of output: 33
[2021-06-01 18:55:55,652 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 32
[2021-06-01 18:55:55,729 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:55,729 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1215853280] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:55,729 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:55:55,729 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:55:55,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403225337]
[2021-06-01 18:55:55,729 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:55:55,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:55:55,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:55:55,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:55:55,729 INFO L87 Difference]: Start difference. First operand 463 states and 1479 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:56,235 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66
[2021-06-01 18:55:56,636 WARN L205 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 129
[2021-06-01 18:55:56,967 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78
[2021-06-01 18:55:57,409 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88
[2021-06-01 18:55:57,622 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64
[2021-06-01 18:55:58,161 WARN L205 SmtUtils]: Spent 504.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 102
[2021-06-01 18:55:58,520 WARN L205 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70
[2021-06-01 18:55:59,096 WARN L205 SmtUtils]: Spent 528.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 105
[2021-06-01 18:55:59,543 WARN L205 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83
[2021-06-01 18:55:59,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:55:59,585 INFO L93 Difference]: Finished difference Result 866 states and 2532 transitions.
[2021-06-01 18:55:59,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:55:59,585 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:55:59,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:55:59,586 INFO L225 Difference]: With dead ends: 866
[2021-06-01 18:55:59,586 INFO L226 Difference]: Without dead ends: 809
[2021-06-01 18:55:59,586 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 4328.5ms TimeCoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870
[2021-06-01 18:55:59,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 809 states.
[2021-06-01 18:55:59,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 809 to 460.
[2021-06-01 18:55:59,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 3.189542483660131) internal successors, (1464), 459 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:59,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 1464 transitions.
[2021-06-01 18:55:59,592 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 1464 transitions. Word has length 20
[2021-06-01 18:55:59,592 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:55:59,593 INFO L482 AbstractCegarLoop]: Abstraction has 460 states and 1464 transitions.
[2021-06-01 18:55:59,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:55:59,593 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 1464 transitions.
[2021-06-01 18:55:59,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:55:59,593 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:55:59,593 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:55:59,794 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10670,102 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:55:59,795 INFO L430 AbstractCegarLoop]: === Iteration 224 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:55:59,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:55:59,795 INFO L82 PathProgramCache]: Analyzing trace with hash 1152951686, now seen corresponding path program 75 times
[2021-06-01 18:55:59,795 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:55:59,795 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216030546]
[2021-06-01 18:55:59,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:55:59,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:55:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:55:59,981 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:55:59,981 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216030546]
[2021-06-01 18:55:59,982 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216030546] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:55:59,982 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [231589302]
[2021-06-01 18:55:59,982 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 103 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:00,021 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:56:00,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:00,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:56:00,022 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:00,656 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:00,656 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:00,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:00,657 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:00,663 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:00,663 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:00,664 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:00,665 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:00,670 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:00,671 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:00,672 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:00,994 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101
[2021-06-01 18:56:00,994 INFO L628 ElimStorePlain]: treesize reduction 167, result has 69.5 percent of original size
[2021-06-01 18:56:01,000 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,000 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,001 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:01,002 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,006 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:01,007 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,139 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 91
[2021-06-01 18:56:01,140 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:01,145 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:01,146 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,268 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:56:01,269 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:01,273 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,274 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,274 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:56:01,275 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,279 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:01,281 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,387 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 80
[2021-06-01 18:56:01,387 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:01,392 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:01,393 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,498 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:56:01,498 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:01,505 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:01,506 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:01,507 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:01,619 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 72
[2021-06-01 18:56:01,619 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:01,624 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:01,625 INFO L247 ElimStorePlain]: Needed 11 recursive calls to eliminate 12 variables, input treesize:577, output treesize:243
[2021-06-01 18:56:01,824 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 86
[2021-06-01 18:56:02,138 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 84
[2021-06-01 18:56:02,391 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1537, v_prenex_1529, array_6, v_prenex_1531, v_prenex_1533, v_prenex_1535], 1=[v_prenex_1528, array_3, v_prenex_1530, v_prenex_1532, v_prenex_1534, v_prenex_1536]}
[2021-06-01 18:56:02,399 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:02,400 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:02,410 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:02,419 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:02,428 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:02,438 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:02,448 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,777 WARN L205 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 84
[2021-06-01 18:56:02,777 INFO L628 ElimStorePlain]: treesize reduction 1212, result has 13.3 percent of original size
[2021-06-01 18:56:02,782 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:02,783 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,851 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:02,855 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:02,856 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,924 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:02,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:02,929 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:02,994 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:02,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:02,999 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:03,063 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:03,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:03,067 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:03,126 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1528 vanished before elimination
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1530 vanished before elimination
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1532 vanished before elimination
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1534 vanished before elimination
[2021-06-01 18:56:03,126 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1536 vanished before elimination
[2021-06-01 18:56:03,128 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:03,128 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1537, output treesize:107
[2021-06-01 18:56:03,262 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:03,262 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [231589302] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:03,262 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:03,262 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:03,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057643758]
[2021-06-01 18:56:03,262 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:03,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:03,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:03,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:03,263 INFO L87 Difference]: Start difference. First operand 460 states and 1464 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:03,748 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59
[2021-06-01 18:56:04,091 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70
[2021-06-01 18:56:04,429 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 121
[2021-06-01 18:56:05,059 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 131
[2021-06-01 18:56:05,290 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70
[2021-06-01 18:56:05,506 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73
[2021-06-01 18:56:05,673 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61
[2021-06-01 18:56:05,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:05,692 INFO L93 Difference]: Finished difference Result 661 states and 2006 transitions.
[2021-06-01 18:56:05,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:56:05,693 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:05,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:05,693 INFO L225 Difference]: With dead ends: 661
[2021-06-01 18:56:05,693 INFO L226 Difference]: Without dead ends: 613
[2021-06-01 18:56:05,694 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2956.7ms TimeCoverageRelationStatistics Valid=118, Invalid=638, Unknown=0, NotChecked=0, Total=756
[2021-06-01 18:56:05,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 613 states.
[2021-06-01 18:56:05,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 613 to 466.
[2021-06-01 18:56:05,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 3.182795698924731) internal successors, (1480), 465 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:05,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1480 transitions.
[2021-06-01 18:56:05,702 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1480 transitions. Word has length 20
[2021-06-01 18:56:05,702 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:05,702 INFO L482 AbstractCegarLoop]: Abstraction has 466 states and 1480 transitions.
[2021-06-01 18:56:05,703 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:05,703 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1480 transitions.
[2021-06-01 18:56:05,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:05,703 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:05,703 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:05,903 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10789,103 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:05,904 INFO L430 AbstractCegarLoop]: === Iteration 225 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:05,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:05,904 INFO L82 PathProgramCache]: Analyzing trace with hash 836840330, now seen corresponding path program 76 times
[2021-06-01 18:56:05,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:05,904 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961625724]
[2021-06-01 18:56:05,904 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:05,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:06,110 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:06,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:06,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961625724]
[2021-06-01 18:56:06,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961625724] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:06,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [889225367]
[2021-06-01 18:56:06,110 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 104 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:06,139 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:56:06,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:06,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:06,140 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:06,856 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,857 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:06,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:06,865 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,865 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:06,866 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:06,873 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,873 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,873 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:06,874 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:06,881 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,881 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:06,882 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:06,888 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,889 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:06,890 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:06,896 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:06,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:06,897 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,344 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81
[2021-06-01 18:56:07,344 INFO L628 ElimStorePlain]: treesize reduction 629, result has 42.1 percent of original size
[2021-06-01 18:56:07,349 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,350 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:07,351 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,356 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:07,357 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:07,362 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,549 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:56:07,549 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:07,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,554 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:07,556 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,561 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,561 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,561 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:07,562 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,566 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:07,567 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,724 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 69
[2021-06-01 18:56:07,725 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:07,729 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,730 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,730 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:07,731 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,735 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:07,736 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,740 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:07,741 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:07,741 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:07,889 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 65
[2021-06-01 18:56:07,889 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:07,896 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:56:07,896 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1201, output treesize:306
[2021-06-01 18:56:08,138 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81
[2021-06-01 18:56:08,377 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1549, array_6, v_prenex_1551, v_prenex_1553, v_prenex_1555], 1=[v_prenex_1548, array_3, v_prenex_1550, v_prenex_1552, v_prenex_1554]}
[2021-06-01 18:56:08,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:08,387 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:08,395 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,402 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:08,403 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,411 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:08,411 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:08,420 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,427 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:08,428 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,859 WARN L205 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 87
[2021-06-01 18:56:08,859 INFO L628 ElimStorePlain]: treesize reduction 1158, result has 22.1 percent of original size
[2021-06-01 18:56:08,864 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:08,865 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:08,998 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:56:08,998 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:09,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:09,004 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:09,134 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:56:09,135 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:09,139 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:09,140 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:09,145 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:09,146 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:09,403 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70
[2021-06-01 18:56:09,403 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:56:09,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:09,408 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:09,526 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 64
[2021-06-01 18:56:09,526 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:09,526 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1548 vanished before elimination
[2021-06-01 18:56:09,526 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:56:09,526 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1550 vanished before elimination
[2021-06-01 18:56:09,526 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1552 vanished before elimination
[2021-06-01 18:56:09,526 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1554 vanished before elimination
[2021-06-01 18:56:09,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 5 dim-0 vars, 10 dim-1 vars, End of recursive call: and 12 xjuncts.
[2021-06-01 18:56:09,530 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 15 variables, input treesize:1681, output treesize:238
[2021-06-01 18:56:09,695 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 36
[2021-06-01 18:56:09,853 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:56:09,930 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:09,930 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [889225367] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:09,930 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:09,930 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:09,930 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656227446]
[2021-06-01 18:56:09,930 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:09,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:09,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:09,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:09,931 INFO L87 Difference]: Start difference. First operand 466 states and 1480 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:10,729 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 86
[2021-06-01 18:56:11,158 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 127
[2021-06-01 18:56:11,470 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86
[2021-06-01 18:56:11,843 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 96
[2021-06-01 18:56:11,890 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:11,890 INFO L93 Difference]: Finished difference Result 677 states and 2055 transitions.
[2021-06-01 18:56:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:56:11,890 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:11,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:11,891 INFO L225 Difference]: With dead ends: 677
[2021-06-01 18:56:11,891 INFO L226 Difference]: Without dead ends: 662
[2021-06-01 18:56:11,891 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 2544.3ms TimeCoverageRelationStatistics Valid=103, Invalid=547, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:56:11,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 662 states.
[2021-06-01 18:56:11,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 662 to 466.
[2021-06-01 18:56:11,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 465 states have (on average 3.182795698924731) internal successors, (1480), 465 states have internal predecessors, (1480), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:11,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 1480 transitions.
[2021-06-01 18:56:11,897 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 1480 transitions. Word has length 20
[2021-06-01 18:56:11,897 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:11,897 INFO L482 AbstractCegarLoop]: Abstraction has 466 states and 1480 transitions.
[2021-06-01 18:56:11,897 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 1480 transitions.
[2021-06-01 18:56:11,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:11,898 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:11,898 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:12,100 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10921,104 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:12,101 INFO L430 AbstractCegarLoop]: === Iteration 226 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:12,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:12,101 INFO L82 PathProgramCache]: Analyzing trace with hash -861880058, now seen corresponding path program 77 times
[2021-06-01 18:56:12,101 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:12,101 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690323116]
[2021-06-01 18:56:12,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:12,248 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:12,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:12,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690323116]
[2021-06-01 18:56:12,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690323116] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:12,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [760607774]
[2021-06-01 18:56:12,249 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 105 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:12,277 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:56:12,277 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:12,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 25 conjunts are in the unsatisfiable core
[2021-06-01 18:56:12,278 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:12,511 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:12,512 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,515 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:12,516 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:12,520 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:12,524 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:12,528 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:12,533 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,536 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:12,537 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,540 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,541 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,544 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:12,544 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,547 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:12,548 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,552 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:12,556 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:12,560 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,564 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,564 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:12,568 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,572 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:12,572 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:12,577 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 2 xjuncts.
[2021-06-01 18:56:12,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,581 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,585 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,585 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,589 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:12,589 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:12,594 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:12,598 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,601 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:12,602 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:12,606 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:12,722 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 37
[2021-06-01 18:56:12,723 INFO L628 ElimStorePlain]: treesize reduction 251, result has 36.5 percent of original size
[2021-06-01 18:56:12,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:12,724 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 1 variables, input treesize:847, output treesize:144
[2021-06-01 18:56:13,056 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 37
[2021-06-01 18:56:13,275 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:13,276 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [760607774] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:13,276 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:13,276 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:56:13,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981972439]
[2021-06-01 18:56:13,276 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:56:13,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:13,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:56:13,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:56:13,277 INFO L87 Difference]: Start difference. First operand 466 states and 1480 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:13,809 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51
[2021-06-01 18:56:14,028 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70
[2021-06-01 18:56:14,284 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65
[2021-06-01 18:56:14,631 WARN L205 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 81
[2021-06-01 18:56:14,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:14,663 INFO L93 Difference]: Finished difference Result 653 states and 2001 transitions.
[2021-06-01 18:56:14,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:56:14,663 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:14,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:14,664 INFO L225 Difference]: With dead ends: 653
[2021-06-01 18:56:14,664 INFO L226 Difference]: Without dead ends: 631
[2021-06-01 18:56:14,664 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1767.2ms TimeCoverageRelationStatistics Valid=104, Invalid=598, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:56:14,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 631 states.
[2021-06-01 18:56:14,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 631 to 463.
[2021-06-01 18:56:14,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 3.186147186147186) internal successors, (1472), 462 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:14,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1472 transitions.
[2021-06-01 18:56:14,669 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1472 transitions. Word has length 20
[2021-06-01 18:56:14,669 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:14,669 INFO L482 AbstractCegarLoop]: Abstraction has 463 states and 1472 transitions.
[2021-06-01 18:56:14,669 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:14,669 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1472 transitions.
[2021-06-01 18:56:14,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:14,669 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:14,670 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:14,884 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 105 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11084
[2021-06-01 18:56:14,885 INFO L430 AbstractCegarLoop]: === Iteration 227 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash 1741930810, now seen corresponding path program 78 times
[2021-06-01 18:56:14,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:14,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696102024]
[2021-06-01 18:56:14,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:14,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:15,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:15,025 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:15,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696102024]
[2021-06-01 18:56:15,025 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696102024] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:15,025 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814639919]
[2021-06-01 18:56:15,025 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 106 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:15,052 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:56:15,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:15,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:15,053 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:15,624 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:15,624 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:15,625 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:15,625 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:15,632 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:15,633 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:15,633 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:15,634 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:15,640 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:15,641 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:15,641 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,085 WARN L205 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 131
[2021-06-01 18:56:16,085 INFO L628 ElimStorePlain]: treesize reduction 222, result has 69.3 percent of original size
[2021-06-01 18:56:16,092 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,093 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:16,094 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,299 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 127
[2021-06-01 18:56:16,299 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:16,306 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,306 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:16,307 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,514 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 123
[2021-06-01 18:56:16,514 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:16,520 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,520 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:16,521 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,527 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,527 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:56:16,528 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,713 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 116
[2021-06-01 18:56:16,713 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:16,719 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,719 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:16,720 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:16,726 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:16,726 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:16,727 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:17,044 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 107
[2021-06-01 18:56:17,045 INFO L628 ElimStorePlain]: treesize reduction 24, result has 94.1 percent of original size
[2021-06-01 18:56:17,050 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:17,050 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:17,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:17,051 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:17,056 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:17,057 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:17,057 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:17,207 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2021-06-01 18:56:17,207 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:17,214 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:17,214 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:17,215 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:17,364 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2021-06-01 18:56:17,364 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:17,370 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:17,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:17,371 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:17,521 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:56:17,521 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:17,530 INFO L550 ElimStorePlain]: Start of recursive call 1: 8 dim-0 vars, 8 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:56:17,530 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 16 variables, input treesize:753, output treesize:343
[2021-06-01 18:56:17,753 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 101
[2021-06-01 18:56:18,284 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1581, v_prenex_1583, v_prenex_1585, array_6, v_prenex_1587, v_prenex_1589, v_prenex_1579], 1=[array_0, v_prenex_1580, v_prenex_1582, v_prenex_1584, v_prenex_1586, v_prenex_1578, v_prenex_1588]}
[2021-06-01 18:56:18,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:18,295 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,304 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:18,305 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,315 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:18,316 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,325 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:18,326 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,336 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:18,337 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,346 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:18,346 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,829 WARN L205 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 106
[2021-06-01 18:56:18,829 INFO L628 ElimStorePlain]: treesize reduction 1623, result has 14.7 percent of original size
[2021-06-01 18:56:18,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:18,836 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:18,948 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 101
[2021-06-01 18:56:18,949 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:18,954 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:18,955 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:19,063 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95
[2021-06-01 18:56:19,064 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:19,069 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:19,070 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:19,175 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90
[2021-06-01 18:56:19,175 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:19,180 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:19,181 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:19,281 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:56:19,281 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:19,286 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:19,287 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:19,385 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:19,390 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:19,391 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:19,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:19,486 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:19,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1580 vanished before elimination
[2021-06-01 18:56:19,487 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1582 vanished before elimination
[2021-06-01 18:56:19,487 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1584 vanished before elimination
[2021-06-01 18:56:19,487 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1586 vanished before elimination
[2021-06-01 18:56:19,487 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1578 vanished before elimination
[2021-06-01 18:56:19,487 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1588 vanished before elimination
[2021-06-01 18:56:19,490 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:56:19,490 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 21 variables, input treesize:2085, output treesize:175
[2021-06-01 18:56:19,659 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:56:19,833 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:19,833 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814639919] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:19,833 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:19,833 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:19,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671961529]
[2021-06-01 18:56:19,833 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:19,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:19,833 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:19,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:19,834 INFO L87 Difference]: Start difference. First operand 463 states and 1472 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:20,346 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67
[2021-06-01 18:56:20,758 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 104
[2021-06-01 18:56:21,143 WARN L205 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 152
[2021-06-01 18:56:21,398 WARN L205 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78
[2021-06-01 18:56:21,820 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81
[2021-06-01 18:56:22,043 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68
[2021-06-01 18:56:22,328 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85
[2021-06-01 18:56:22,752 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88
[2021-06-01 18:56:23,129 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75
[2021-06-01 18:56:23,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:23,192 INFO L93 Difference]: Finished difference Result 769 states and 2279 transitions.
[2021-06-01 18:56:23,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:56:23,192 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:23,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:23,193 INFO L225 Difference]: With dead ends: 769
[2021-06-01 18:56:23,193 INFO L226 Difference]: Without dead ends: 697
[2021-06-01 18:56:23,193 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 3789.7ms TimeCoverageRelationStatistics Valid=181, Invalid=875, Unknown=0, NotChecked=0, Total=1056
[2021-06-01 18:56:23,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 697 states.
[2021-06-01 18:56:23,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 697 to 463.
[2021-06-01 18:56:23,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 3.186147186147186) internal successors, (1472), 462 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:23,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1472 transitions.
[2021-06-01 18:56:23,199 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1472 transitions. Word has length 20
[2021-06-01 18:56:23,200 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:23,200 INFO L482 AbstractCegarLoop]: Abstraction has 463 states and 1472 transitions.
[2021-06-01 18:56:23,200 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:23,200 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1472 transitions.
[2021-06-01 18:56:23,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:23,200 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:23,201 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:23,404 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 106 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11147
[2021-06-01 18:56:23,405 INFO L430 AbstractCegarLoop]: === Iteration 228 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:23,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:23,405 INFO L82 PathProgramCache]: Analyzing trace with hash 558385996, now seen corresponding path program 79 times
[2021-06-01 18:56:23,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:23,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792618903]
[2021-06-01 18:56:23,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:23,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:23,545 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:23,546 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:23,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792618903]
[2021-06-01 18:56:23,546 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792618903] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:23,546 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [514740553]
[2021-06-01 18:56:23,546 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 107 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:23,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:23,572 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:56:23,573 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:24,086 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:24,087 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,417 WARN L205 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 104
[2021-06-01 18:56:24,418 INFO L628 ElimStorePlain]: treesize reduction 209, result has 64.6 percent of original size
[2021-06-01 18:56:24,423 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:24,424 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,571 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 100
[2021-06-01 18:56:24,571 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:24,576 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,577 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,577 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:24,578 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,584 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,584 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:24,585 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,834 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91
[2021-06-01 18:56:24,835 INFO L628 ElimStorePlain]: treesize reduction 30, result has 91.3 percent of original size
[2021-06-01 18:56:24,840 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:24,841 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,961 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:56:24,961 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:24,966 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,966 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:56:24,967 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:24,971 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:24,972 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:24,972 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,088 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 80
[2021-06-01 18:56:25,089 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:25,093 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:25,094 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:25,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:25,095 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,099 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:25,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:25,100 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,205 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:56:25,206 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:25,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 6 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:25,212 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:597, output treesize:242
[2021-06-01 18:56:25,415 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 90
[2021-06-01 18:56:25,672 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1604, v_prenex_1606, v_prenex_1608, array_6, v_prenex_1610, v_prenex_1612], 1=[v_prenex_1603, v_prenex_1605, array_0, v_prenex_1607, v_prenex_1609, v_prenex_1611]}
[2021-06-01 18:56:25,680 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:25,681 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,689 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:25,690 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:25,698 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:25,707 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,714 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:25,715 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:25,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:25,723 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,114 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 94
[2021-06-01 18:56:26,115 INFO L628 ElimStorePlain]: treesize reduction 1278, result has 17.7 percent of original size
[2021-06-01 18:56:26,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:26,121 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,229 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 88
[2021-06-01 18:56:26,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:26,235 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:26,236 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,240 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:26,241 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,331 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:26,336 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:26,337 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,425 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:26,429 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:26,430 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,516 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:26,519 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:26,520 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:26,614 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:26,614 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1603 vanished before elimination
[2021-06-01 18:56:26,614 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1605 vanished before elimination
[2021-06-01 18:56:26,614 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:26,614 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1607 vanished before elimination
[2021-06-01 18:56:26,614 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1609 vanished before elimination
[2021-06-01 18:56:26,615 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1611 vanished before elimination
[2021-06-01 18:56:26,617 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:26,617 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1703, output treesize:140
[2021-06-01 18:56:26,754 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:56:26,986 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 32
[2021-06-01 18:56:27,061 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:27,061 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [514740553] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:27,061 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:27,062 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:27,062 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337716668]
[2021-06-01 18:56:27,062 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:27,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:27,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:27,062 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=302, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:27,062 INFO L87 Difference]: Start difference. First operand 463 states and 1472 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:27,906 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 126
[2021-06-01 18:56:28,141 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68
[2021-06-01 18:56:28,437 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72
[2021-06-01 18:56:28,636 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60
[2021-06-01 18:56:29,026 WARN L205 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76
[2021-06-01 18:56:29,479 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82
[2021-06-01 18:56:29,828 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68
[2021-06-01 18:56:30,270 WARN L205 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81
[2021-06-01 18:56:30,759 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87
[2021-06-01 18:56:31,131 WARN L205 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73
[2021-06-01 18:56:31,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:31,174 INFO L93 Difference]: Finished difference Result 861 states and 2544 transitions.
[2021-06-01 18:56:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states.
[2021-06-01 18:56:31,174 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:31,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:31,176 INFO L225 Difference]: With dead ends: 861
[2021-06-01 18:56:31,176 INFO L226 Difference]: Without dead ends: 831
[2021-06-01 18:56:31,176 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 89 ImplicationChecksByTransitivity, 4419.7ms TimeCoverageRelationStatistics Valid=182, Invalid=810, Unknown=0, NotChecked=0, Total=992
[2021-06-01 18:56:31,177 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 831 states.
[2021-06-01 18:56:31,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 831 to 464.
[2021-06-01 18:56:31,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 464 states, 463 states have (on average 3.1900647948164145) internal successors, (1477), 463 states have internal predecessors, (1477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 464 states to 464 states and 1477 transitions.
[2021-06-01 18:56:31,182 INFO L78 Accepts]: Start accepts. Automaton has 464 states and 1477 transitions. Word has length 20
[2021-06-01 18:56:31,182 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:31,182 INFO L482 AbstractCegarLoop]: Abstraction has 464 states and 1477 transitions.
[2021-06-01 18:56:31,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:31,183 INFO L276 IsEmpty]: Start isEmpty. Operand 464 states and 1477 transitions.
[2021-06-01 18:56:31,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:31,183 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:31,183 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:31,383 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11265,107 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:31,384 INFO L430 AbstractCegarLoop]: === Iteration 229 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:31,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:31,384 INFO L82 PathProgramCache]: Analyzing trace with hash -660249364, now seen corresponding path program 80 times
[2021-06-01 18:56:31,384 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:31,384 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1284525788]
[2021-06-01 18:56:31,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:31,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:31,539 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:31,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:31,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1284525788]
[2021-06-01 18:56:31,539 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1284525788] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:31,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328351374]
[2021-06-01 18:56:31,539 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 108 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:31,565 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:56:31,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:31,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:56:31,566 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:32,087 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,088 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:32,089 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,094 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,095 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,095 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:32,096 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,100 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,101 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,101 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:32,102 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,107 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,107 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,107 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:32,108 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,112 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,113 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,113 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:32,114 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,118 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:32,119 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,426 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69
[2021-06-01 18:56:32,427 INFO L628 ElimStorePlain]: treesize reduction 419, result has 46.2 percent of original size
[2021-06-01 18:56:32,431 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,431 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:56:32,432 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,436 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,437 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,437 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:32,438 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,441 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:32,443 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,662 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62
[2021-06-01 18:56:32,662 INFO L628 ElimStorePlain]: treesize reduction 30, result has 90.3 percent of original size
[2021-06-01 18:56:32,666 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,667 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:32,668 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,671 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,672 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:32,673 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,676 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:32,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:32,677 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:32,781 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 58
[2021-06-01 18:56:32,782 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:32,788 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:32,788 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:949, output treesize:241
[2021-06-01 18:56:33,103 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1625, v_prenex_1627, v_prenex_1629, array_6, v_prenex_1631, v_prenex_1623], 1=[v_prenex_1626, v_prenex_1628, array_0, v_prenex_1630, v_prenex_1622, v_prenex_1624]}
[2021-06-01 18:56:33,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:33,112 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,120 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:33,121 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:33,130 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:33,139 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,146 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:33,147 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,154 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:33,155 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,552 WARN L205 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 92
[2021-06-01 18:56:33,552 INFO L628 ElimStorePlain]: treesize reduction 1251, result has 17.2 percent of original size
[2021-06-01 18:56:33,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:33,558 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,665 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:56:33,665 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:33,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:33,671 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,776 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:56:33,776 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:33,781 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:33,782 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,885 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:56:33,885 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:33,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:56:33,890 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:33,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:33,894 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:34,071 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67
[2021-06-01 18:56:34,072 INFO L628 ElimStorePlain]: treesize reduction 27, result has 87.8 percent of original size
[2021-06-01 18:56:34,075 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:34,076 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:34,160 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1626 vanished before elimination
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1628 vanished before elimination
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1630 vanished before elimination
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1622 vanished before elimination
[2021-06-01 18:56:34,160 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1624 vanished before elimination
[2021-06-01 18:56:34,164 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:34,164 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1703, output treesize:140
[2021-06-01 18:56:34,304 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 32
[2021-06-01 18:56:34,598 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:34,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328351374] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:34,598 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:34,598 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:34,598 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560407927]
[2021-06-01 18:56:34,598 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:34,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:34,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:34,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:34,599 INFO L87 Difference]: Start difference. First operand 464 states and 1477 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:35,403 WARN L205 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 124
[2021-06-01 18:56:35,646 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68
[2021-06-01 18:56:36,135 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 77
[2021-06-01 18:56:36,608 WARN L205 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84
[2021-06-01 18:56:36,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:36,642 INFO L93 Difference]: Finished difference Result 759 states and 2279 transitions.
[2021-06-01 18:56:36,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:56:36,642 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:36,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:36,643 INFO L225 Difference]: With dead ends: 759
[2021-06-01 18:56:36,643 INFO L226 Difference]: Without dead ends: 744
[2021-06-01 18:56:36,643 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 2373.8ms TimeCoverageRelationStatistics Valid=108, Invalid=542, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:56:36,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 744 states.
[2021-06-01 18:56:36,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 744 to 465.
[2021-06-01 18:56:36,649 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 465 states, 464 states have (on average 3.1961206896551726) internal successors, (1483), 464 states have internal predecessors, (1483), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:36,650 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1483 transitions.
[2021-06-01 18:56:36,650 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1483 transitions. Word has length 20
[2021-06-01 18:56:36,650 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:36,650 INFO L482 AbstractCegarLoop]: Abstraction has 465 states and 1483 transitions.
[2021-06-01 18:56:36,650 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:36,650 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1483 transitions.
[2021-06-01 18:56:36,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:36,651 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:36,651 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:36,861 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 108 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11412
[2021-06-01 18:56:36,862 INFO L430 AbstractCegarLoop]: === Iteration 230 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:36,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:36,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1547446544, now seen corresponding path program 81 times
[2021-06-01 18:56:36,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:36,862 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644629579]
[2021-06-01 18:56:36,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:36,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:37,009 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:37,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:37,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644629579]
[2021-06-01 18:56:37,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644629579] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:37,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [87236352]
[2021-06-01 18:56:37,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 109 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:37,036 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:56:37,036 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:37,036 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:37,037 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:37,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,604 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,604 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:37,605 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:37,610 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,611 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:37,612 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:37,617 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,617 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,617 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:37,618 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:37,623 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,623 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:37,624 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:37,629 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,630 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:37,631 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:37,635 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:37,635 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:37,636 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,011 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73
[2021-06-01 18:56:38,011 INFO L628 ElimStorePlain]: treesize reduction 496, result has 44.3 percent of original size
[2021-06-01 18:56:38,016 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,016 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:38,017 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,022 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,022 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:38,023 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,027 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:38,027 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,165 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 66
[2021-06-01 18:56:38,166 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:38,170 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,170 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:56:38,172 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,176 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,176 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:38,177 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,181 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:38,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:38,182 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,432 WARN L205 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62
[2021-06-01 18:56:38,432 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.6 percent of original size
[2021-06-01 18:56:38,439 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:38,439 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:275
[2021-06-01 18:56:38,659 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98
[2021-06-01 18:56:38,867 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1648, v_prenex_1650, array_6, v_prenex_1642, v_prenex_1644, v_prenex_1646], 1=[v_prenex_1647, v_prenex_1649, array_0, v_prenex_1641, v_prenex_1643, v_prenex_1645]}
[2021-06-01 18:56:38,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:38,877 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:38,885 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,893 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:38,893 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,901 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:38,902 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,909 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:38,910 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:38,917 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:38,917 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,376 WARN L205 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 102
[2021-06-01 18:56:39,376 INFO L628 ElimStorePlain]: treesize reduction 1313, result has 18.3 percent of original size
[2021-06-01 18:56:39,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:39,383 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,515 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2021-06-01 18:56:39,515 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:39,520 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:39,521 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,648 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2021-06-01 18:56:39,648 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:39,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:39,654 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,779 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:56:39,779 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:39,784 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:39,785 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,911 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 79
[2021-06-01 18:56:39,911 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:39,916 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:39,917 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:39,921 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:39,922 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:40,022 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 70
[2021-06-01 18:56:40,022 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1647 vanished before elimination
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1649 vanished before elimination
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1641 vanished before elimination
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1643 vanished before elimination
[2021-06-01 18:56:40,023 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1645 vanished before elimination
[2021-06-01 18:56:40,026 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:40,026 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1817, output treesize:194
[2021-06-01 18:56:40,194 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:56:40,419 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 36
[2021-06-01 18:56:40,608 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:40,608 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [87236352] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:40,608 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:40,608 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:40,608 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935599023]
[2021-06-01 18:56:40,608 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:40,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:40,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:40,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:40,609 INFO L87 Difference]: Start difference. First operand 465 states and 1483 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:41,084 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67
[2021-06-01 18:56:41,517 WARN L205 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 134
[2021-06-01 18:56:41,794 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67
[2021-06-01 18:56:42,182 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61
[2021-06-01 18:56:42,565 WARN L205 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 80
[2021-06-01 18:56:42,974 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 74
[2021-06-01 18:56:43,379 WARN L205 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83
[2021-06-01 18:56:43,811 WARN L205 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88
[2021-06-01 18:56:44,256 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81
[2021-06-01 18:56:44,719 WARN L205 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91
[2021-06-01 18:56:44,860 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60
[2021-06-01 18:56:44,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:44,922 INFO L93 Difference]: Finished difference Result 1025 states and 2941 transitions.
[2021-06-01 18:56:44,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:56:44,923 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:44,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:44,924 INFO L225 Difference]: With dead ends: 1025
[2021-06-01 18:56:44,924 INFO L226 Difference]: Without dead ends: 953
[2021-06-01 18:56:44,924 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 4764.7ms TimeCoverageRelationStatistics Valid=217, Invalid=973, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:56:44,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 953 states.
[2021-06-01 18:56:44,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 953 to 469.
[2021-06-01 18:56:44,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 469 states, 468 states have (on average 3.2072649572649574) internal successors, (1501), 468 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:44,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 469 states to 469 states and 1501 transitions.
[2021-06-01 18:56:44,931 INFO L78 Accepts]: Start accepts. Automaton has 469 states and 1501 transitions. Word has length 20
[2021-06-01 18:56:44,931 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:44,931 INFO L482 AbstractCegarLoop]: Abstraction has 469 states and 1501 transitions.
[2021-06-01 18:56:44,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:44,931 INFO L276 IsEmpty]: Start isEmpty. Operand 469 states and 1501 transitions.
[2021-06-01 18:56:44,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:44,931 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:44,931 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:45,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11569,109 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:45,132 INFO L430 AbstractCegarLoop]: === Iteration 231 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:45,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:45,132 INFO L82 PathProgramCache]: Analyzing trace with hash 360320496, now seen corresponding path program 82 times
[2021-06-01 18:56:45,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:45,132 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782517417]
[2021-06-01 18:56:45,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:45,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:45,299 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:45,300 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:45,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782517417]
[2021-06-01 18:56:45,300 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782517417] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:45,300 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1319351996]
[2021-06-01 18:56:45,300 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 110 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:45,327 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:56:45,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:45,327 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:45,328 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:45,870 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,870 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,870 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:45,871 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:45,876 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,877 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,877 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:45,878 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:45,883 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,884 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,884 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:45,885 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:45,890 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,890 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,891 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:45,891 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:45,897 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,897 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,897 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:45,898 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:45,903 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:45,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:45,905 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,307 WARN L205 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77
[2021-06-01 18:56:46,307 INFO L628 ElimStorePlain]: treesize reduction 466, result has 47.5 percent of original size
[2021-06-01 18:56:46,311 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,312 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,312 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:46,313 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,317 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,318 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,318 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:46,319 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,323 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:46,324 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,642 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 72
[2021-06-01 18:56:46,643 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:56:46,647 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,647 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,647 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:46,648 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,653 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,653 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:46,653 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:46,654 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,658 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:46,658 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:46,780 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 61
[2021-06-01 18:56:46,780 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:46,787 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:46,787 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:274
[2021-06-01 18:56:47,009 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97
[2021-06-01 18:56:47,213 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1669, array_6, v_prenex_1661, v_prenex_1663, v_prenex_1665, v_prenex_1667], 1=[array_0, v_prenex_1660, v_prenex_1662, v_prenex_1664, v_prenex_1666, v_prenex_1668]}
[2021-06-01 18:56:47,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:47,223 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,231 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:47,232 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:47,241 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:47,252 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,261 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:47,261 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:47,271 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,711 WARN L205 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 99
[2021-06-01 18:56:47,711 INFO L628 ElimStorePlain]: treesize reduction 1395, result has 15.6 percent of original size
[2021-06-01 18:56:47,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:47,717 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,826 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:56:47,827 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:47,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:47,833 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:47,940 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2021-06-01 18:56:47,941 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:47,945 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:47,946 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:48,051 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:56:48,051 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:48,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:48,056 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:48,159 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 78
[2021-06-01 18:56:48,159 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:48,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:48,165 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:48,263 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1660 vanished before elimination
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1662 vanished before elimination
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1664 vanished before elimination
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1666 vanished before elimination
[2021-06-01 18:56:48,264 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1668 vanished before elimination
[2021-06-01 18:56:48,267 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:48,267 INFO L247 ElimStorePlain]: Needed 12 recursive calls to eliminate 18 variables, input treesize:1811, output treesize:194
[2021-06-01 18:56:48,433 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:56:48,597 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36
[2021-06-01 18:56:48,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:48,827 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1319351996] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:48,827 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:48,827 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:56:48,827 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787851780]
[2021-06-01 18:56:48,827 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:56:48,827 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:48,827 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:56:48,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:56:48,827 INFO L87 Difference]: Start difference. First operand 469 states and 1501 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:49,671 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 130
[2021-06-01 18:56:49,936 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72
[2021-06-01 18:56:50,608 WARN L205 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80
[2021-06-01 18:56:51,311 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 90
[2021-06-01 18:56:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:51,344 INFO L93 Difference]: Finished difference Result 778 states and 2338 transitions.
[2021-06-01 18:56:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:56:51,344 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:51,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:51,345 INFO L225 Difference]: With dead ends: 778
[2021-06-01 18:56:51,345 INFO L226 Difference]: Without dead ends: 763
[2021-06-01 18:56:51,345 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 3049.5ms TimeCoverageRelationStatistics Valid=106, Invalid=544, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:56:51,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states.
[2021-06-01 18:56:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 467.
[2021-06-01 18:56:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 3.1952789699570814) internal successors, (1489), 466 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:51,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1489 transitions.
[2021-06-01 18:56:51,351 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 1489 transitions. Word has length 20
[2021-06-01 18:56:51,351 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:51,351 INFO L482 AbstractCegarLoop]: Abstraction has 467 states and 1489 transitions.
[2021-06-01 18:56:51,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:51,351 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1489 transitions.
[2021-06-01 18:56:51,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:51,352 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:51,352 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:51,552 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11729,110 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:51,552 INFO L430 AbstractCegarLoop]: === Iteration 232 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:51,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:51,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1393009026, now seen corresponding path program 83 times
[2021-06-01 18:56:51,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:51,553 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158817284]
[2021-06-01 18:56:51,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:51,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:51,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:51,733 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:51,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158817284]
[2021-06-01 18:56:51,733 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158817284] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:51,733 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1446601496]
[2021-06-01 18:56:51,733 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 111 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:51,761 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:56:51,761 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:51,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:51,762 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:51,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:56:51,936 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:56:51,941 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:51,947 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:51,952 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:51,958 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,962 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:51,963 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,968 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:56:51,968 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:51,974 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,979 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:51,980 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,984 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:56:51,986 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,990 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:51,991 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:51,995 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:51,996 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,000 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:56:52,001 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,006 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:56:52,007 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,012 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,013 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,017 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:52,018 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:52,023 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:56:52,029 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,033 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:56:52,034 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,039 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:52,040 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,045 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:52,046 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,051 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:56:52,052 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,056 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,057 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,062 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:56:52,063 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,068 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,069 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,075 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,080 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:52,081 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,086 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,086 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:52,107 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:52,111 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,115 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:56:52,116 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,120 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:56:52,121 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,135 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:52,136 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:52,142 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,147 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:56:52,149 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,153 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:56:52,155 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:52,351 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 40
[2021-06-01 18:56:52,351 INFO L628 ElimStorePlain]: treesize reduction 413, result has 33.7 percent of original size
[2021-06-01 18:56:52,353 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:52,353 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1981, output treesize:210
[2021-06-01 18:56:52,706 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42
[2021-06-01 18:56:52,893 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 36
[2021-06-01 18:56:53,046 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 33
[2021-06-01 18:56:53,127 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:53,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1446601496] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:53,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:56:53,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:56:53,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139528396]
[2021-06-01 18:56:53,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:56:53,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:56:53,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:56:53,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:56:53,128 INFO L87 Difference]: Start difference. First operand 467 states and 1489 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:53,913 WARN L205 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77
[2021-06-01 18:56:54,444 WARN L205 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 91
[2021-06-01 18:56:54,822 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76
[2021-06-01 18:56:54,971 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60
[2021-06-01 18:56:55,241 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78
[2021-06-01 18:56:55,464 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63
[2021-06-01 18:56:55,747 WARN L205 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83
[2021-06-01 18:56:56,166 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85
[2021-06-01 18:56:56,537 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70
[2021-06-01 18:56:56,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:56:56,588 INFO L93 Difference]: Finished difference Result 808 states and 2389 transitions.
[2021-06-01 18:56:56,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:56:56,588 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:56:56,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:56:56,589 INFO L225 Difference]: With dead ends: 808
[2021-06-01 18:56:56,589 INFO L226 Difference]: Without dead ends: 736
[2021-06-01 18:56:56,590 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3960.4ms TimeCoverageRelationStatistics Valid=197, Invalid=993, Unknown=0, NotChecked=0, Total=1190
[2021-06-01 18:56:56,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states.
[2021-06-01 18:56:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 467.
[2021-06-01 18:56:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 466 states have (on average 3.1952789699570814) internal successors, (1489), 466 states have internal predecessors, (1489), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 1489 transitions.
[2021-06-01 18:56:56,595 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 1489 transitions. Word has length 20
[2021-06-01 18:56:56,595 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:56:56,595 INFO L482 AbstractCegarLoop]: Abstraction has 467 states and 1489 transitions.
[2021-06-01 18:56:56,595 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:56:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 1489 transitions.
[2021-06-01 18:56:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:56:56,596 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:56:56,596 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:56:56,796 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 111 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11888
[2021-06-01 18:56:56,796 INFO L430 AbstractCegarLoop]: === Iteration 233 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:56:56,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:56:56,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1689017916, now seen corresponding path program 84 times
[2021-06-01 18:56:56,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:56:56,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052772684]
[2021-06-01 18:56:56,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:56:56,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:56:56,939 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:56:56,939 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:56:56,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052772684]
[2021-06-01 18:56:56,939 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052772684] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:56:56,939 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [482717600]
[2021-06-01 18:56:56,939 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 112 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:56:56,966 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:56:56,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:56:56,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:56:56,967 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:56:57,418 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,418 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:57,419 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,424 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,424 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:57,425 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,430 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,430 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:57,431 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,436 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,436 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:57,437 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,442 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,442 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,442 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:57,443 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,447 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,448 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:56:57,448 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,808 WARN L205 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71
[2021-06-01 18:56:57,808 INFO L628 ElimStorePlain]: treesize reduction 496, result has 44.3 percent of original size
[2021-06-01 18:56:57,813 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,813 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:57,814 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,818 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,819 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,819 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:57,820 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:57,824 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:57,825 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:56:57,826 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,117 WARN L205 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67
[2021-06-01 18:56:58,117 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.7 percent of original size
[2021-06-01 18:56:58,121 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:58,122 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:58,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:58,123 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,126 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:56:58,127 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,131 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:56:58,131 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:56:58,132 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,248 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60
[2021-06-01 18:56:58,249 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:58,255 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 3 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:56:58,255 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 6 variables, input treesize:1003, output treesize:265
[2021-06-01 18:56:58,650 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 92
[2021-06-01 18:56:58,849 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1681, v_prenex_1683, array_6, v_prenex_1685, v_prenex_1687, v_prenex_1689], 1=[array_0, v_prenex_1680, v_prenex_1682, v_prenex_1684, v_prenex_1686, v_prenex_1688]}
[2021-06-01 18:56:58,857 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:58,858 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,866 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:56:58,867 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,874 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:56:58,875 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,882 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:58,883 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:58,891 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:58,898 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:56:58,899 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,344 WARN L205 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 94
[2021-06-01 18:56:59,345 INFO L628 ElimStorePlain]: treesize reduction 1440, result has 16.8 percent of original size
[2021-06-01 18:56:59,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:59,351 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,467 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 89
[2021-06-01 18:56:59,468 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:59,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:56:59,474 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:59,480 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,682 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80
[2021-06-01 18:56:59,683 INFO L628 ElimStorePlain]: treesize reduction 29, result has 89.2 percent of original size
[2021-06-01 18:56:59,687 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:59,688 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,783 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:59,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:56:59,788 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,881 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:59,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:56:59,887 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:56:59,977 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1680 vanished before elimination
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1682 vanished before elimination
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1684 vanished before elimination
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1686 vanished before elimination
[2021-06-01 18:56:59,978 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1688 vanished before elimination
[2021-06-01 18:56:59,981 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:56:59,981 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1851, output treesize:168
[2021-06-01 18:57:00,140 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 34
[2021-06-01 18:57:00,372 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:00,372 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [482717600] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:00,372 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:00,372 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:57:00,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36272755]
[2021-06-01 18:57:00,373 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:57:00,373 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:00,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:57:00,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:57:00,373 INFO L87 Difference]: Start difference. First operand 467 states and 1489 transitions. Second operand has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:01,209 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 133
[2021-06-01 18:57:01,853 WARN L205 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151
[2021-06-01 18:57:02,455 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68
[2021-06-01 18:57:02,634 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61
[2021-06-01 18:57:02,976 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74
[2021-06-01 18:57:03,186 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63
[2021-06-01 18:57:03,525 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76
[2021-06-01 18:57:03,932 WARN L205 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85
[2021-06-01 18:57:04,167 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70
[2021-06-01 18:57:04,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:04,224 INFO L93 Difference]: Finished difference Result 830 states and 2445 transitions.
[2021-06-01 18:57:04,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states.
[2021-06-01 18:57:04,224 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:04,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:04,225 INFO L225 Difference]: With dead ends: 830
[2021-06-01 18:57:04,225 INFO L226 Difference]: Without dead ends: 785
[2021-06-01 18:57:04,225 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 11 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 4226.4ms TimeCoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:57:04,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states.
[2021-06-01 18:57:04,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 463.
[2021-06-01 18:57:04,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 463 states, 462 states have (on average 3.186147186147186) internal successors, (1472), 462 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 1472 transitions.
[2021-06-01 18:57:04,235 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 1472 transitions. Word has length 20
[2021-06-01 18:57:04,235 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:04,235 INFO L482 AbstractCegarLoop]: Abstraction has 463 states and 1472 transitions.
[2021-06-01 18:57:04,235 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.894736842105263) internal successors, (36), 19 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:04,235 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 1472 transitions.
[2021-06-01 18:57:04,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:04,235 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:04,235 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:04,436 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 112 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11933
[2021-06-01 18:57:04,436 INFO L430 AbstractCegarLoop]: === Iteration 234 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:04,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:04,436 INFO L82 PathProgramCache]: Analyzing trace with hash 1517900006, now seen corresponding path program 85 times
[2021-06-01 18:57:04,436 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:04,436 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475564563]
[2021-06-01 18:57:04,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:04,583 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:04,583 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:04,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475564563]
[2021-06-01 18:57:04,583 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475564563] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:04,583 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1264234716]
[2021-06-01 18:57:04,583 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 113 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:04,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:04,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:57:04,609 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:04,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:04,895 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:04,899 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,903 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:04,904 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,908 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:04,908 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,912 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,913 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:04,917 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,921 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:04,922 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,926 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:04,927 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:04,932 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,936 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,937 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,941 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:04,942 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:04,947 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,951 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,951 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,956 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:04,956 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,960 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,961 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,966 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:04,966 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,971 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:04,972 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,977 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:04,982 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,987 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:04,988 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:04,993 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:04,997 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:04,998 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,003 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:05,004 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,007 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:05,008 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,215 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45
[2021-06-01 18:57:05,216 INFO L628 ElimStorePlain]: treesize reduction 276, result has 46.6 percent of original size
[2021-06-01 18:57:05,221 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts.
[2021-06-01 18:57:05,222 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 2 variables, input treesize:1135, output treesize:229
[2021-06-01 18:57:05,525 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 88
[2021-06-01 18:57:05,888 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:05,889 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:05,889 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:05,890 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,898 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:05,898 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:05,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:05,899 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,907 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:05,908 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,915 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:05,916 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,923 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:05,924 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:05,930 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:05,931 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,258 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 90
[2021-06-01 18:57:06,259 INFO L628 ElimStorePlain]: treesize reduction 1090, result has 16.5 percent of original size
[2021-06-01 18:57:06,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:06,265 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,345 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:06,350 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:06,351 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,429 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:06,429 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1704 vanished before elimination
[2021-06-01 18:57:06,433 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:06,434 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,510 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:06,510 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1706 vanished before elimination
[2021-06-01 18:57:06,510 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:06,514 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:06,515 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,596 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:06,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:06,601 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,604 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:06,605 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:06,664 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:06,665 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1698 vanished before elimination
[2021-06-01 18:57:06,665 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1701 vanished before elimination
[2021-06-01 18:57:06,665 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1700 vanished before elimination
[2021-06-01 18:57:06,667 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:06,667 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1507, output treesize:113
[2021-06-01 18:57:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:06,835 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1264234716] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:06,835 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:06,835 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:06,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206033066]
[2021-06-01 18:57:06,835 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:06,835 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:06,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:06,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:06,836 INFO L87 Difference]: Start difference. First operand 463 states and 1472 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:07,144 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45
[2021-06-01 18:57:07,405 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118
[2021-06-01 18:57:07,784 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 131
[2021-06-01 18:57:08,169 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 132
[2021-06-01 18:57:08,610 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 148
[2021-06-01 18:57:09,083 WARN L205 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 154
[2021-06-01 18:57:09,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:09,117 INFO L93 Difference]: Finished difference Result 610 states and 1836 transitions.
[2021-06-01 18:57:09,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:57:09,117 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:09,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:09,118 INFO L225 Difference]: With dead ends: 610
[2021-06-01 18:57:09,118 INFO L226 Difference]: Without dead ends: 548
[2021-06-01 18:57:09,118 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 2676.4ms TimeCoverageRelationStatistics Valid=98, Invalid=502, Unknown=0, NotChecked=0, Total=600
[2021-06-01 18:57:09,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 548 states.
[2021-06-01 18:57:09,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 548 to 477.
[2021-06-01 18:57:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 3.176470588235294) internal successors, (1512), 476 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 1512 transitions.
[2021-06-01 18:57:09,123 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 1512 transitions. Word has length 20
[2021-06-01 18:57:09,123 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:09,123 INFO L482 AbstractCegarLoop]: Abstraction has 477 states and 1512 transitions.
[2021-06-01 18:57:09,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:09,123 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1512 transitions.
[2021-06-01 18:57:09,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:09,124 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:09,124 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:09,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12060,113 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:09,324 INFO L430 AbstractCegarLoop]: === Iteration 235 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:09,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1120982352, now seen corresponding path program 86 times
[2021-06-01 18:57:09,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:09,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479244315]
[2021-06-01 18:57:09,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:09,528 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:09,529 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:09,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479244315]
[2021-06-01 18:57:09,529 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479244315] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:09,529 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468795468]
[2021-06-01 18:57:09,529 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 114 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:09,563 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:57:09,563 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:09,564 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 21 conjunts are in the unsatisfiable core
[2021-06-01 18:57:09,564 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:09,809 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:09,810 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:09,814 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:09,817 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,820 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:09,821 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,825 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,828 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:09,829 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,832 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:09,833 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,836 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,836 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,840 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,840 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,844 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:09,844 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:09,848 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:09,852 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,871 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:09,871 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,876 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,877 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,881 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:09,882 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,886 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,887 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:09,891 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:09,895 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:09,896 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:10,020 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39
[2021-06-01 18:57:10,021 INFO L628 ElimStorePlain]: treesize reduction 107, result has 61.8 percent of original size
[2021-06-01 18:57:10,025 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:57:10,025 INFO L247 ElimStorePlain]: Needed 19 recursive calls to eliminate 2 variables, input treesize:715, output treesize:161
[2021-06-01 18:57:10,708 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:10,708 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468795468] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:10,708 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:10,708 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:10,708 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781094278]
[2021-06-01 18:57:10,708 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:10,708 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:10,709 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:10,709 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:10,709 INFO L87 Difference]: Start difference. First operand 477 states and 1512 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:11,365 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 99
[2021-06-01 18:57:11,672 WARN L205 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 114
[2021-06-01 18:57:12,032 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 119
[2021-06-01 18:57:12,464 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 117
[2021-06-01 18:57:12,868 WARN L205 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 129
[2021-06-01 18:57:13,029 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 109
[2021-06-01 18:57:13,410 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 125
[2021-06-01 18:57:13,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:13,424 INFO L93 Difference]: Finished difference Result 668 states and 1981 transitions.
[2021-06-01 18:57:13,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:57:13,424 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:13,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:13,425 INFO L225 Difference]: With dead ends: 668
[2021-06-01 18:57:13,425 INFO L226 Difference]: Without dead ends: 638
[2021-06-01 18:57:13,425 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 2998.1ms TimeCoverageRelationStatistics Valid=131, Invalid=681, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:57:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states.
[2021-06-01 18:57:13,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 477.
[2021-06-01 18:57:13,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 477 states, 476 states have (on average 3.176470588235294) internal successors, (1512), 476 states have internal predecessors, (1512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:13,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 477 states to 477 states and 1512 transitions.
[2021-06-01 18:57:13,431 INFO L78 Accepts]: Start accepts. Automaton has 477 states and 1512 transitions. Word has length 20
[2021-06-01 18:57:13,431 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:13,431 INFO L482 AbstractCegarLoop]: Abstraction has 477 states and 1512 transitions.
[2021-06-01 18:57:13,431 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:13,431 INFO L276 IsEmpty]: Start isEmpty. Operand 477 states and 1512 transitions.
[2021-06-01 18:57:13,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:13,432 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:13,432 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:13,632 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12194,114 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:13,632 INFO L430 AbstractCegarLoop]: === Iteration 236 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:13,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:13,632 INFO L82 PathProgramCache]: Analyzing trace with hash -577738036, now seen corresponding path program 87 times
[2021-06-01 18:57:13,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:13,632 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258703598]
[2021-06-01 18:57:13,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:13,805 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:13,805 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:13,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258703598]
[2021-06-01 18:57:13,805 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258703598] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:13,805 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [975738253]
[2021-06-01 18:57:13,805 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 115 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:13,842 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:57:13,842 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:13,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:13,843 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:14,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:14,139 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:14,145 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:14,150 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,155 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:14,155 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:14,161 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:14,166 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:14,171 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:14,177 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:14,182 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,187 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:14,187 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,192 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:14,193 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:14,198 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,203 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:14,204 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,208 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:14,208 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,213 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:14,214 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,219 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:14,220 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,225 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:14,225 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,230 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:14,231 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:14,237 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:14,244 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:14,250 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,254 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:14,255 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,259 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:14,260 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,264 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:14,265 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:14,498 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45
[2021-06-01 18:57:14,498 INFO L628 ElimStorePlain]: treesize reduction 272, result has 50.4 percent of original size
[2021-06-01 18:57:14,505 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts.
[2021-06-01 18:57:14,505 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 2 variables, input treesize:1207, output treesize:264
[2021-06-01 18:57:15,040 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:15,040 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:15,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:15,041 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,051 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:15,052 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,062 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:15,062 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,072 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:15,072 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,081 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:15,082 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,091 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:15,092 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,607 WARN L205 SmtUtils]: Spent 514.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 117
[2021-06-01 18:57:15,607 INFO L628 ElimStorePlain]: treesize reduction 1523, result has 17.0 percent of original size
[2021-06-01 18:57:15,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:15,614 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,749 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 112
[2021-06-01 18:57:15,749 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:15,749 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1720 vanished before elimination
[2021-06-01 18:57:15,755 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:15,756 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:15,887 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 105
[2021-06-01 18:57:15,887 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:15,887 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1722 vanished before elimination
[2021-06-01 18:57:15,894 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:57:15,895 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:16,029 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 99
[2021-06-01 18:57:16,029 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:16,029 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1724 vanished before elimination
[2021-06-01 18:57:16,035 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:16,036 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:16,163 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 94
[2021-06-01 18:57:16,163 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:16,163 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1726 vanished before elimination
[2021-06-01 18:57:16,168 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:57:16,169 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:16,174 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:16,175 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:16,389 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 84
[2021-06-01 18:57:16,389 INFO L628 ElimStorePlain]: treesize reduction 24, result has 90.7 percent of original size
[2021-06-01 18:57:16,394 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:16,395 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:16,496 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 77
[2021-06-01 18:57:16,496 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:16,496 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1728 vanished before elimination
[2021-06-01 18:57:16,496 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1719 vanished before elimination
[2021-06-01 18:57:16,496 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:16,500 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:57:16,500 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2091, output treesize:195
[2021-06-01 18:57:16,668 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38
[2021-06-01 18:57:16,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:16,883 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [975738253] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:16,883 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:16,883 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:16,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981559849]
[2021-06-01 18:57:16,884 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:16,884 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:16,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:16,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:16,884 INFO L87 Difference]: Start difference. First operand 477 states and 1512 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:17,433 WARN L205 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 127
[2021-06-01 18:57:17,767 WARN L205 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 136
[2021-06-01 18:57:18,291 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 145
[2021-06-01 18:57:18,727 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 141
[2021-06-01 18:57:19,364 WARN L205 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 165 DAG size of output: 157
[2021-06-01 18:57:19,806 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 153
[2021-06-01 18:57:20,474 WARN L205 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 160
[2021-06-01 18:57:20,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:20,512 INFO L93 Difference]: Finished difference Result 668 states and 1969 transitions.
[2021-06-01 18:57:20,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:57:20,513 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:20,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:20,513 INFO L225 Difference]: With dead ends: 668
[2021-06-01 18:57:20,514 INFO L226 Difference]: Without dead ends: 624
[2021-06-01 18:57:20,514 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 4065.3ms TimeCoverageRelationStatistics Valid=109, Invalid=593, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:57:20,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 624 states.
[2021-06-01 18:57:20,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 624 to 480.
[2021-06-01 18:57:20,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 480 states, 479 states have (on average 3.1795407098121085) internal successors, (1523), 479 states have internal predecessors, (1523), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:20,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 480 states to 480 states and 1523 transitions.
[2021-06-01 18:57:20,519 INFO L78 Accepts]: Start accepts. Automaton has 480 states and 1523 transitions. Word has length 20
[2021-06-01 18:57:20,519 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:20,519 INFO L482 AbstractCegarLoop]: Abstraction has 480 states and 1523 transitions.
[2021-06-01 18:57:20,519 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:20,519 INFO L276 IsEmpty]: Start isEmpty. Operand 480 states and 1523 transitions.
[2021-06-01 18:57:20,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:20,520 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:20,520 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:20,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12327,115 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:20,720 INFO L430 AbstractCegarLoop]: === Iteration 237 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:20,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:20,721 INFO L82 PathProgramCache]: Analyzing trace with hash -750985728, now seen corresponding path program 88 times
[2021-06-01 18:57:20,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:20,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753565849]
[2021-06-01 18:57:20,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:20,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:20,883 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:20,884 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:20,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753565849]
[2021-06-01 18:57:20,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753565849] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:20,884 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [614488625]
[2021-06-01 18:57:20,884 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 116 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:20,910 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:57:20,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:20,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:20,912 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:21,255 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:21,256 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:21,262 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,267 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,267 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,271 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,272 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,277 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:21,277 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:21,283 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,287 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:21,288 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,292 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,293 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:21,298 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,302 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,303 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:21,308 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:21,313 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,318 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,322 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:21,323 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,327 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:21,328 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,332 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:21,333 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,337 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:21,338 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:21,343 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:21,347 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,352 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:21,352 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,356 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:21,357 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,361 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:21,362 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,366 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:21,367 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,371 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:21,371 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:21,592 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45
[2021-06-01 18:57:21,592 INFO L628 ElimStorePlain]: treesize reduction 323, result has 45.4 percent of original size
[2021-06-01 18:57:21,599 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts.
[2021-06-01 18:57:21,599 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 2 variables, input treesize:1207, output treesize:257
[2021-06-01 18:57:22,111 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 99
[2021-06-01 18:57:22,386 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,387 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,387 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:22,388 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,396 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,397 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:22,398 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,406 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,406 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:22,407 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,415 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,416 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,416 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:22,417 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,425 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,426 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,426 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:22,427 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,435 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,435 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:22,436 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,842 WARN L205 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 104
[2021-06-01 18:57:22,843 INFO L628 ElimStorePlain]: treesize reduction 1211, result has 18.5 percent of original size
[2021-06-01 18:57:22,849 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:22,850 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:22,855 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:22,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:22,857 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,036 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 93
[2021-06-01 18:57:23,037 INFO L628 ElimStorePlain]: treesize reduction 24, result has 90.5 percent of original size
[2021-06-01 18:57:23,042 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:23,043 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,127 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:23,127 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1737 vanished before elimination
[2021-06-01 18:57:23,132 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:23,133 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,219 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:23,220 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:23,224 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:23,225 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,303 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:23,304 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1740 vanished before elimination
[2021-06-01 18:57:23,308 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:23,309 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,313 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:23,313 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:23,314 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:23,444 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66
[2021-06-01 18:57:23,444 INFO L628 ElimStorePlain]: treesize reduction 19, result has 89.3 percent of original size
[2021-06-01 18:57:23,445 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1742 vanished before elimination
[2021-06-01 18:57:23,445 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1745 vanished before elimination
[2021-06-01 18:57:23,445 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1744 vanished before elimination
[2021-06-01 18:57:23,446 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:23,447 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 18 variables, input treesize:1597, output treesize:130
[2021-06-01 18:57:23,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:23,633 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [614488625] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:23,633 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:23,633 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:23,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440748125]
[2021-06-01 18:57:23,634 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:23,634 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:23,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:23,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=268, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:23,634 INFO L87 Difference]: Start difference. First operand 480 states and 1523 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:24,164 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 127
[2021-06-01 18:57:24,595 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 129
[2021-06-01 18:57:25,216 WARN L205 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 147
[2021-06-01 18:57:25,614 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152
[2021-06-01 18:57:26,010 WARN L205 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158
[2021-06-01 18:57:26,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:26,042 INFO L93 Difference]: Finished difference Result 611 states and 1843 transitions.
[2021-06-01 18:57:26,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:57:26,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:26,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:26,043 INFO L225 Difference]: With dead ends: 611
[2021-06-01 18:57:26,043 INFO L226 Difference]: Without dead ends: 560
[2021-06-01 18:57:26,043 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 2926.7ms TimeCoverageRelationStatistics Valid=90, Invalid=510, Unknown=0, NotChecked=0, Total=600
[2021-06-01 18:57:26,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 560 states.
[2021-06-01 18:57:26,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 560 to 472.
[2021-06-01 18:57:26,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 472 states, 471 states have (on average 3.1825902335456475) internal successors, (1499), 471 states have internal predecessors, (1499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:26,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 472 states to 472 states and 1499 transitions.
[2021-06-01 18:57:26,047 INFO L78 Accepts]: Start accepts. Automaton has 472 states and 1499 transitions. Word has length 20
[2021-06-01 18:57:26,047 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:26,047 INFO L482 AbstractCegarLoop]: Abstraction has 472 states and 1499 transitions.
[2021-06-01 18:57:26,047 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:26,048 INFO L276 IsEmpty]: Start isEmpty. Operand 472 states and 1499 transitions.
[2021-06-01 18:57:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:26,048 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:26,048 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:26,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12474,116 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:26,253 INFO L430 AbstractCegarLoop]: === Iteration 238 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:26,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:26,253 INFO L82 PathProgramCache]: Analyzing trace with hash 1200559462, now seen corresponding path program 89 times
[2021-06-01 18:57:26,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:26,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139367116]
[2021-06-01 18:57:26,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:26,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:26,472 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:26,473 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:26,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139367116]
[2021-06-01 18:57:26,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [139367116] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:26,473 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [84278415]
[2021-06-01 18:57:26,473 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 117 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:26,500 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:57:26,501 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:26,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:26,501 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:26,745 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,746 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,752 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:26,758 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,764 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,765 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,771 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,776 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,777 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,783 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,784 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,792 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,798 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,804 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,804 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,810 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,811 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,816 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,817 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,822 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:26,823 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,829 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,829 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,835 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:26,836 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,841 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,842 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,847 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:26,848 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,854 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,854 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,859 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:26,860 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,865 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,866 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,871 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,872 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,877 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:26,878 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,884 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,890 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,890 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,897 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,903 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,919 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,920 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,926 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,931 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:26,932 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,937 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,937 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,942 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,943 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,949 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,953 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:26,954 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,959 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,959 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,964 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,965 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,970 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,970 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,975 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:26,976 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,981 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:26,982 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,986 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:26,987 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,992 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:26,993 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:26,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:26,998 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,004 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:27,004 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,009 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,010 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:27,016 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:27,023 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,028 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,029 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,034 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,035 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,040 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,041 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:27,056 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,061 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:27,061 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,067 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:27,067 INFO L550 ElimStorePlain]: Start of recursive call 52: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,073 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,073 INFO L550 ElimStorePlain]: Start of recursive call 53: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:27,079 INFO L550 ElimStorePlain]: Start of recursive call 54: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,085 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:27,086 INFO L550 ElimStorePlain]: Start of recursive call 55: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,091 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,092 INFO L550 ElimStorePlain]: Start of recursive call 56: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,098 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:27,099 INFO L550 ElimStorePlain]: Start of recursive call 57: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,106 INFO L550 ElimStorePlain]: Start of recursive call 58: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,111 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:27,112 INFO L550 ElimStorePlain]: Start of recursive call 59: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,118 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,119 INFO L550 ElimStorePlain]: Start of recursive call 60: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,124 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,125 INFO L550 ElimStorePlain]: Start of recursive call 61: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,130 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:27,131 INFO L550 ElimStorePlain]: Start of recursive call 62: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,137 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:27,138 INFO L550 ElimStorePlain]: Start of recursive call 63: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,143 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:27,144 INFO L550 ElimStorePlain]: Start of recursive call 64: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,149 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:27,150 INFO L550 ElimStorePlain]: Start of recursive call 65: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,155 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:27,155 INFO L550 ElimStorePlain]: Start of recursive call 66: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:27,161 INFO L550 ElimStorePlain]: Start of recursive call 67: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:27,352 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37
[2021-06-01 18:57:27,353 INFO L628 ElimStorePlain]: treesize reduction 863, result has 15.7 percent of original size
[2021-06-01 18:57:27,354 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:27,354 INFO L247 ElimStorePlain]: Needed 67 recursive calls to eliminate 1 variables, input treesize:2875, output treesize:161
[2021-06-01 18:57:27,792 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 34
[2021-06-01 18:57:27,867 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:27,867 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [84278415] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:27,867 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:27,867 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:57:27,867 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767542124]
[2021-06-01 18:57:27,867 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:57:27,867 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:27,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:57:27,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=336, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:57:27,868 INFO L87 Difference]: Start difference. First operand 472 states and 1499 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:28,240 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49
[2021-06-01 18:57:28,533 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 54
[2021-06-01 18:57:29,081 WARN L205 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 87
[2021-06-01 18:57:29,608 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 75
[2021-06-01 18:57:29,751 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 38
[2021-06-01 18:57:30,203 WARN L205 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70
[2021-06-01 18:57:30,399 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48
[2021-06-01 18:57:30,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:30,520 INFO L93 Difference]: Finished difference Result 586 states and 1806 transitions.
[2021-06-01 18:57:30,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:57:30,520 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:30,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:30,521 INFO L225 Difference]: With dead ends: 586
[2021-06-01 18:57:30,521 INFO L226 Difference]: Without dead ends: 556
[2021-06-01 18:57:30,521 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 93 ImplicationChecksByTransitivity, 3049.2ms TimeCoverageRelationStatistics Valid=117, Invalid=695, Unknown=0, NotChecked=0, Total=812
[2021-06-01 18:57:30,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 556 states.
[2021-06-01 18:57:30,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 556 to 475.
[2021-06-01 18:57:30,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 3.179324894514768) internal successors, (1507), 474 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:30,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1507 transitions.
[2021-06-01 18:57:30,526 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1507 transitions. Word has length 20
[2021-06-01 18:57:30,526 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:30,526 INFO L482 AbstractCegarLoop]: Abstraction has 475 states and 1507 transitions.
[2021-06-01 18:57:30,526 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:30,526 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1507 transitions.
[2021-06-01 18:57:30,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:30,527 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:30,527 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:30,727 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12649,117 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:30,727 INFO L430 AbstractCegarLoop]: === Iteration 239 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:30,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1679844138, now seen corresponding path program 90 times
[2021-06-01 18:57:30,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:30,728 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118176296]
[2021-06-01 18:57:30,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:30,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:30,919 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:30,919 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:30,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118176296]
[2021-06-01 18:57:30,920 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118176296] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:30,920 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1219392396]
[2021-06-01 18:57:30,920 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 118 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:30,945 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 2 check-sat command(s)
[2021-06-01 18:57:30,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:30,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:57:30,947 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:31,675 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,675 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,676 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:31,676 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:31,682 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,683 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:31,684 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:31,690 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,690 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,691 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:31,692 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:31,698 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,698 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,698 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:31,699 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:31,705 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,706 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,706 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:31,707 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:31,713 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:31,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:31,714 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,097 WARN L205 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77
[2021-06-01 18:57:32,098 INFO L628 ElimStorePlain]: treesize reduction 584, result has 40.7 percent of original size
[2021-06-01 18:57:32,103 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:32,104 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,109 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,109 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,111 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,115 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,117 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,402 WARN L205 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71
[2021-06-01 18:57:32,402 INFO L628 ElimStorePlain]: treesize reduction 24, result has 93.6 percent of original size
[2021-06-01 18:57:32,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,407 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,407 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,408 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,412 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,413 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,413 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,414 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:32,419 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,552 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 67
[2021-06-01 18:57:32,553 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:32,557 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:32,558 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,562 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,563 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,563 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,564 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,568 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:32,568 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:32,569 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:32,696 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 63
[2021-06-01 18:57:32,696 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:32,703 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 6 dim-0 vars, and 10 xjuncts.
[2021-06-01 18:57:32,703 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1129, output treesize:279
[2021-06-01 18:57:32,924 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77
[2021-06-01 18:57:33,103 INFO L446 ElimStorePlain]: Different costs {0=[array_6, v_prenex_1760, v_prenex_1762], 1=[v_prenex_1759, array_3, v_prenex_1761]}
[2021-06-01 18:57:33,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:33,111 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,117 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:33,117 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,123 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:33,124 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,129 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:33,130 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,135 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:33,136 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,141 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:33,142 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,399 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 61
[2021-06-01 18:57:33,399 INFO L628 ElimStorePlain]: treesize reduction 681, result has 24.8 percent of original size
[2021-06-01 18:57:33,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:33,404 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,513 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 56
[2021-06-01 18:57:33,513 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:33,516 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:33,517 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:33,606 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:33,607 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1759 vanished before elimination
[2021-06-01 18:57:33,607 INFO L518 ElimStorePlain]: Eliminatee array_3 vanished before elimination
[2021-06-01 18:57:33,607 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1761 vanished before elimination
[2021-06-01 18:57:33,609 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 6 dim-1 vars, End of recursive call: and 11 xjuncts.
[2021-06-01 18:57:33,609 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 9 variables, input treesize:1086, output treesize:179
[2021-06-01 18:57:33,750 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35
[2021-06-01 18:57:33,908 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:33,908 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1219392396] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:33,908 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:33,908 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:57:33,908 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974782197]
[2021-06-01 18:57:33,909 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:57:33,909 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:33,909 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:57:33,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:57:33,909 INFO L87 Difference]: Start difference. First operand 475 states and 1507 transitions. Second operand has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:34,328 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86
[2021-06-01 18:57:34,629 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90
[2021-06-01 18:57:35,070 WARN L205 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 135
[2021-06-01 18:57:35,556 WARN L205 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 133
[2021-06-01 18:57:36,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:36,356 INFO L93 Difference]: Finished difference Result 688 states and 2017 transitions.
[2021-06-01 18:57:36,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:57:36,356 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:36,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:36,357 INFO L225 Difference]: With dead ends: 688
[2021-06-01 18:57:36,357 INFO L226 Difference]: Without dead ends: 616
[2021-06-01 18:57:36,357 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 2926.5ms TimeCoverageRelationStatistics Valid=131, Invalid=799, Unknown=0, NotChecked=0, Total=930
[2021-06-01 18:57:36,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 616 states.
[2021-06-01 18:57:36,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 616 to 475.
[2021-06-01 18:57:36,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 3.179324894514768) internal successors, (1507), 474 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:36,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1507 transitions.
[2021-06-01 18:57:36,362 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1507 transitions. Word has length 20
[2021-06-01 18:57:36,363 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:36,363 INFO L482 AbstractCegarLoop]: Abstraction has 475 states and 1507 transitions.
[2021-06-01 18:57:36,363 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:36,363 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1507 transitions.
[2021-06-01 18:57:36,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:36,363 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:36,363 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:36,563 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12721,118 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:36,564 INFO L430 AbstractCegarLoop]: === Iteration 240 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:36,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:36,564 INFO L82 PathProgramCache]: Analyzing trace with hash -2079893356, now seen corresponding path program 91 times
[2021-06-01 18:57:36,564 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:36,564 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285447382]
[2021-06-01 18:57:36,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:36,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:36,759 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:36,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:36,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285447382]
[2021-06-01 18:57:36,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285447382] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:36,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1158547100]
[2021-06-01 18:57:36,759 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 119 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:36,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:36,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 23 conjunts are in the unsatisfiable core
[2021-06-01 18:57:36,786 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:37,170 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:37,171 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,176 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,176 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,181 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,182 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,186 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:37,187 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,191 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,192 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,197 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,201 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:37,202 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,206 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:37,207 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,211 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:37,212 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:37,217 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:37,222 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,226 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:37,227 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,231 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:37,232 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,236 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:37,237 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,241 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,242 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,246 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:37,247 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,251 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:37,252 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,256 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:37,256 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,261 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:37,261 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,265 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:37,266 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,270 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:37,271 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:37,276 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,280 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:37,281 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,284 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:37,285 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,510 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45
[2021-06-01 18:57:37,510 INFO L628 ElimStorePlain]: treesize reduction 315, result has 45.3 percent of original size
[2021-06-01 18:57:37,516 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts.
[2021-06-01 18:57:37,516 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 2 variables, input treesize:1207, output treesize:249
[2021-06-01 18:57:37,882 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,883 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,883 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:37,884 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,895 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,896 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,896 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:37,897 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,907 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:37,908 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,919 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,920 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:37,920 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:37,921 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,932 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:37,932 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:37,943 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:37,944 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,441 WARN L205 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 110
[2021-06-01 18:57:38,441 INFO L628 ElimStorePlain]: treesize reduction 1396, result has 17.9 percent of original size
[2021-06-01 18:57:38,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:38,448 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,581 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 105
[2021-06-01 18:57:38,581 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:38,587 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 6
[2021-06-01 18:57:38,587 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,592 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:38,593 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,818 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 95
[2021-06-01 18:57:38,819 INFO L628 ElimStorePlain]: treesize reduction 30, result has 89.4 percent of original size
[2021-06-01 18:57:38,824 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:38,825 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,830 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:38,831 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:38,922 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:38,922 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1771 vanished before elimination
[2021-06-01 18:57:38,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:38,928 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:39,018 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:39,018 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1773 vanished before elimination
[2021-06-01 18:57:39,023 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:57:39,024 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:39,112 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:39,112 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1775 vanished before elimination
[2021-06-01 18:57:39,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:39,124 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:39,209 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:39,209 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1777 vanished before elimination
[2021-06-01 18:57:39,209 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1769 vanished before elimination
[2021-06-01 18:57:39,209 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1779 vanished before elimination
[2021-06-01 18:57:39,209 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:39,212 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:57:39,212 INFO L247 ElimStorePlain]: Needed 15 recursive calls to eliminate 21 variables, input treesize:1869, output treesize:163
[2021-06-01 18:57:39,354 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35
[2021-06-01 18:57:39,509 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:39,509 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1158547100] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:39,509 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:39,509 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:39,509 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835889610]
[2021-06-01 18:57:39,509 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:39,509 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:39,509 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:39,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:39,509 INFO L87 Difference]: Start difference. First operand 475 states and 1507 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:39,825 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45
[2021-06-01 18:57:40,032 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 47
[2021-06-01 18:57:40,312 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 119
[2021-06-01 18:57:40,858 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 73
[2021-06-01 18:57:40,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:40,914 INFO L93 Difference]: Finished difference Result 633 states and 1903 transitions.
[2021-06-01 18:57:40,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:57:40,915 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:40,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:40,915 INFO L225 Difference]: With dead ends: 633
[2021-06-01 18:57:40,915 INFO L226 Difference]: Without dead ends: 603
[2021-06-01 18:57:40,916 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 1732.6ms TimeCoverageRelationStatistics Valid=97, Invalid=553, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:57:40,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 603 states.
[2021-06-01 18:57:40,920 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 603 to 475.
[2021-06-01 18:57:40,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 3.179324894514768) internal successors, (1507), 474 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:40,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 1507 transitions.
[2021-06-01 18:57:40,921 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 1507 transitions. Word has length 20
[2021-06-01 18:57:40,921 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:40,921 INFO L482 AbstractCegarLoop]: Abstraction has 475 states and 1507 transitions.
[2021-06-01 18:57:40,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:40,921 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 1507 transitions.
[2021-06-01 18:57:40,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:40,922 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:40,922 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:41,122 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 119 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12861
[2021-06-01 18:57:41,122 INFO L430 AbstractCegarLoop]: === Iteration 241 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:41,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:41,122 INFO L82 PathProgramCache]: Analyzing trace with hash 516353552, now seen corresponding path program 92 times
[2021-06-01 18:57:41,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:41,122 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242847197]
[2021-06-01 18:57:41,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:41,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:41,278 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:41,278 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:41,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242847197]
[2021-06-01 18:57:41,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242847197] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:41,278 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979552960]
[2021-06-01 18:57:41,278 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 120 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:41,304 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:57:41,304 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:41,305 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:41,305 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:41,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:41,652 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,657 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:41,657 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,662 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:41,663 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,667 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:41,668 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,672 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:41,673 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:41,679 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,683 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:41,684 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,688 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:41,689 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,699 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:41,699 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:41,705 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,710 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:41,710 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:41,716 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:41,721 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,725 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:41,726 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:41,731 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,736 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:41,737 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:41,742 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,747 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:41,748 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,752 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:41,753 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,757 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:41,758 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,763 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:41,764 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,768 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:41,768 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,773 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:41,773 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:41,777 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:41,778 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,021 WARN L205 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48
[2021-06-01 18:57:42,022 INFO L628 ElimStorePlain]: treesize reduction 285, result has 50.9 percent of original size
[2021-06-01 18:57:42,029 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 7 dim-0 vars, and 9 xjuncts.
[2021-06-01 18:57:42,029 INFO L247 ElimStorePlain]: Needed 25 recursive calls to eliminate 2 variables, input treesize:1279, output treesize:283
[2021-06-01 18:57:42,494 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,494 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,495 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:42,496 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,507 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,508 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,508 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:42,509 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,521 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,521 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:42,522 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,534 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,535 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,535 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:42,536 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,548 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,548 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,549 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:42,550 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:42,561 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:42,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:42,562 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,111 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 114
[2021-06-01 18:57:43,111 INFO L628 ElimStorePlain]: treesize reduction 1628, result has 15.7 percent of original size
[2021-06-01 18:57:43,118 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:43,119 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:43,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:43,120 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,126 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:43,126 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,237 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 103
[2021-06-01 18:57:43,237 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:57:43,244 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,352 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 97
[2021-06-01 18:57:43,352 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,353 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1791 vanished before elimination
[2021-06-01 18:57:43,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:43,359 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,465 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 92
[2021-06-01 18:57:43,465 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,465 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1793 vanished before elimination
[2021-06-01 18:57:43,471 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:43,472 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,583 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 87
[2021-06-01 18:57:43,583 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,583 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1795 vanished before elimination
[2021-06-01 18:57:43,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:43,589 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,691 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 82
[2021-06-01 18:57:43,691 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:43,697 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:43,797 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:43,797 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1797 vanished before elimination
[2021-06-01 18:57:43,797 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1789 vanished before elimination
[2021-06-01 18:57:43,797 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1788 vanished before elimination
[2021-06-01 18:57:43,797 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:43,801 INFO L550 ElimStorePlain]: Start of recursive call 1: 7 dim-0 vars, 14 dim-1 vars, End of recursive call: and 9 xjuncts.
[2021-06-01 18:57:43,801 INFO L247 ElimStorePlain]: Needed 14 recursive calls to eliminate 21 variables, input treesize:2043, output treesize:195
[2021-06-01 18:57:43,966 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 38
[2021-06-01 18:57:44,175 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:44,175 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979552960] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:44,175 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:44,175 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:44,175 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007320795]
[2021-06-01 18:57:44,175 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:44,176 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:44,176 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:44,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:44,176 INFO L87 Difference]: Start difference. First operand 475 states and 1507 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:44,506 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46
[2021-06-01 18:57:44,730 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 48
[2021-06-01 18:57:45,049 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 131
[2021-06-01 18:57:45,503 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67
[2021-06-01 18:57:45,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:45,541 INFO L93 Difference]: Finished difference Result 580 states and 1771 transitions.
[2021-06-01 18:57:45,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states.
[2021-06-01 18:57:45,541 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:45,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:45,542 INFO L225 Difference]: With dead ends: 580
[2021-06-01 18:57:45,542 INFO L226 Difference]: Without dead ends: 558
[2021-06-01 18:57:45,542 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1763.7ms TimeCoverageRelationStatistics Valid=75, Invalid=477, Unknown=0, NotChecked=0, Total=552
[2021-06-01 18:57:45,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 558 states.
[2021-06-01 18:57:45,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 558 to 478.
[2021-06-01 18:57:45,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 478 states, 477 states have (on average 3.1823899371069184) internal successors, (1518), 477 states have internal predecessors, (1518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:45,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 1518 transitions.
[2021-06-01 18:57:45,547 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 1518 transitions. Word has length 20
[2021-06-01 18:57:45,547 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:45,547 INFO L482 AbstractCegarLoop]: Abstraction has 478 states and 1518 transitions.
[2021-06-01 18:57:45,547 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:45,547 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 1518 transitions.
[2021-06-01 18:57:45,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:45,547 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:45,548 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:45,748 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13033,120 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:45,748 INFO L430 AbstractCegarLoop]: === Iteration 242 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:45,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:45,748 INFO L82 PathProgramCache]: Analyzing trace with hash 343105860, now seen corresponding path program 93 times
[2021-06-01 18:57:45,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:45,748 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442584663]
[2021-06-01 18:57:45,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:45,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:45,894 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:45,894 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442584663]
[2021-06-01 18:57:45,895 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442584663] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:45,895 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2048476810]
[2021-06-01 18:57:45,895 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 121 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:45,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s)
[2021-06-01 18:57:45,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:45,921 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:45,922 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:46,696 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,696 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:46,697 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:46,703 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,704 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,704 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:46,705 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:46,711 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,711 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,712 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:46,712 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:46,718 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,719 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:46,720 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:46,726 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,726 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,727 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 22 treesize of output 16
[2021-06-01 18:57:46,727 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:46,733 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:46,734 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:46,734 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,230 WARN L205 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 88
[2021-06-01 18:57:47,230 INFO L628 ElimStorePlain]: treesize reduction 650, result has 43.8 percent of original size
[2021-06-01 18:57:47,236 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,236 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,237 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:47,237 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,243 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,243 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:47,244 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,249 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:47,250 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,449 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 84
[2021-06-01 18:57:47,450 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:47,455 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,455 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,455 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18
[2021-06-01 18:57:47,456 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,461 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,461 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,462 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:47,463 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,467 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,467 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:47,468 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,825 WARN L205 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 76
[2021-06-01 18:57:47,825 INFO L628 ElimStorePlain]: treesize reduction 1, result has 99.8 percent of original size
[2021-06-01 18:57:47,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,830 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,831 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:47,832 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,836 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,837 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,837 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:47,838 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:47,842 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:47,842 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11
[2021-06-01 18:57:47,843 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:48,167 WARN L205 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69
[2021-06-01 18:57:48,167 INFO L628 ElimStorePlain]: treesize reduction 27, result has 93.1 percent of original size
[2021-06-01 18:57:48,175 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 4 dim-1 vars, End of recursive call: 9 dim-0 vars, and 11 xjuncts.
[2021-06-01 18:57:48,175 INFO L247 ElimStorePlain]: Needed 16 recursive calls to eliminate 8 variables, input treesize:1273, output treesize:352
[2021-06-01 18:57:48,426 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100
[2021-06-01 18:57:48,661 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 85
[2021-06-01 18:57:48,896 INFO L446 ElimStorePlain]: Different costs {0=[v_prenex_1816, v_prenex_1818, array_6, v_prenex_1820], 1=[v_prenex_1815, array_0, v_prenex_1817, v_prenex_1819]}
[2021-06-01 18:57:48,902 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:48,903 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:48,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:48,909 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:48,915 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:48,916 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts.
[2021-06-01 18:57:48,922 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:48,923 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:48,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:48,929 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:48,935 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:48,936 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:49,165 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69
[2021-06-01 18:57:49,165 INFO L628 ElimStorePlain]: treesize reduction 840, result has 16.7 percent of original size
[2021-06-01 18:57:49,169 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:49,170 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:49,230 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:49,234 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:49,234 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:49,293 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:49,297 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:49,298 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:49,354 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:49,354 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1815 vanished before elimination
[2021-06-01 18:57:49,354 INFO L518 ElimStorePlain]: Eliminatee array_0 vanished before elimination
[2021-06-01 18:57:49,354 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1817 vanished before elimination
[2021-06-01 18:57:49,354 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1819 vanished before elimination
[2021-06-01 18:57:49,356 INFO L550 ElimStorePlain]: Start of recursive call 1: 4 dim-0 vars, 8 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:49,356 INFO L247 ElimStorePlain]: Needed 10 recursive calls to eliminate 12 variables, input treesize:1125, output treesize:122
[2021-06-01 18:57:49,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:49,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2048476810] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:49,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:49,550 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19
[2021-06-01 18:57:49,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159529705]
[2021-06-01 18:57:49,550 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states
[2021-06-01 18:57:49,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:49,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants.
[2021-06-01 18:57:49,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=301, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:57:49,551 INFO L87 Difference]: Start difference. First operand 478 states and 1518 transitions. Second operand has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:49,973 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88
[2021-06-01 18:57:50,297 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 98
[2021-06-01 18:57:50,616 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 116
[2021-06-01 18:57:51,243 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 144
[2021-06-01 18:57:51,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:51,544 INFO L93 Difference]: Finished difference Result 619 states and 1871 transitions.
[2021-06-01 18:57:51,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states.
[2021-06-01 18:57:51,545 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:51,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:51,546 INFO L225 Difference]: With dead ends: 619
[2021-06-01 18:57:51,546 INFO L226 Difference]: Without dead ends: 553
[2021-06-01 18:57:51,546 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 2532.8ms TimeCoverageRelationStatistics Valid=91, Invalid=611, Unknown=0, NotChecked=0, Total=702
[2021-06-01 18:57:51,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states.
[2021-06-01 18:57:51,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 481.
[2021-06-01 18:57:51,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 480 states have (on average 3.1791666666666667) internal successors, (1526), 480 states have internal predecessors, (1526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:51,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 1526 transitions.
[2021-06-01 18:57:51,552 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 1526 transitions. Word has length 20
[2021-06-01 18:57:51,552 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:51,552 INFO L482 AbstractCegarLoop]: Abstraction has 481 states and 1526 transitions.
[2021-06-01 18:57:51,552 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 1.8421052631578947) internal successors, (35), 19 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:51,552 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 1526 transitions.
[2021-06-01 18:57:51,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:51,553 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:51,553 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:51,756 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13210,121 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:51,757 INFO L430 AbstractCegarLoop]: === Iteration 243 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:51,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:51,757 INFO L82 PathProgramCache]: Analyzing trace with hash -1134276060, now seen corresponding path program 94 times
[2021-06-01 18:57:51,757 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:51,757 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54916683]
[2021-06-01 18:57:51,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:51,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:51,918 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:51,918 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54916683]
[2021-06-01 18:57:51,918 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54916683] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:51,919 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997018280]
[2021-06-01 18:57:51,919 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 122 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:51,945 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:57:51,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:51,946 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:51,946 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:52,276 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,277 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,282 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:52,283 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:57:52,289 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,294 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:57:52,295 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,299 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:52,300 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,305 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,306 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,311 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:52,312 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,317 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:52,317 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,323 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:52,323 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:52,329 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,334 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,335 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,340 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:52,341 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,345 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:52,346 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,351 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,352 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,357 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,358 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,363 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:52,364 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,369 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:52,369 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,374 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:52,375 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,381 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,386 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,387 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,392 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,392 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,397 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:52,398 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,403 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,403 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,408 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,409 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,414 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:52,415 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,419 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:52,420 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,425 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,426 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,431 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,431 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,436 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,437 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,441 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:52,442 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,447 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,448 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,452 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:52,453 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,457 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:52,458 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,463 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:52,463 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:52,469 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:52,473 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:52,708 WARN L205 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42
[2021-06-01 18:57:52,708 INFO L628 ElimStorePlain]: treesize reduction 507, result has 33.0 percent of original size
[2021-06-01 18:57:52,713 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:57:52,714 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 2 variables, input treesize:2161, output treesize:254
[2021-06-01 18:57:52,910 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106
[2021-06-01 18:57:53,287 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 112
[2021-06-01 18:57:53,546 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 94
[2021-06-01 18:57:53,917 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,917 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,918 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:53,919 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts.
[2021-06-01 18:57:53,927 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,927 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,928 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:53,928 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:53,937 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,937 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,938 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:57:53,939 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:53,947 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,948 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,948 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:53,949 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:53,957 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,957 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:57:53,957 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:57:53,958 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:53,966 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:53,966 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,332 WARN L205 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 96
[2021-06-01 18:57:54,332 INFO L628 ElimStorePlain]: treesize reduction 1185, result has 15.7 percent of original size
[2021-06-01 18:57:54,338 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:54,339 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,344 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:57:54,345 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,418 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:54,419 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1836 vanished before elimination
[2021-06-01 18:57:54,423 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:54,424 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,494 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:54,499 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:54,500 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,566 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:54,567 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1838 vanished before elimination
[2021-06-01 18:57:54,567 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:57:54,571 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:54,572 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,637 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:54,642 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:57:54,643 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:54,706 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:57:54,706 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1841 vanished before elimination
[2021-06-01 18:57:54,706 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1844 vanished before elimination
[2021-06-01 18:57:54,706 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1843 vanished before elimination
[2021-06-01 18:57:54,708 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:54,708 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1549, output treesize:130
[2021-06-01 18:57:54,904 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:54,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997018280] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:54,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:57:54,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:57:54,905 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1985797552]
[2021-06-01 18:57:54,905 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:57:54,905 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:57:54,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:57:54,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=269, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:57:54,905 INFO L87 Difference]: Start difference. First operand 481 states and 1526 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:55,356 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 126
[2021-06-01 18:57:55,890 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 184
[2021-06-01 18:57:56,829 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 249 DAG size of output: 202
[2021-06-01 18:57:57,678 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 261 DAG size of output: 234
[2021-06-01 18:57:58,802 WARN L205 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 219
[2021-06-01 18:57:58,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:57:58,976 INFO L93 Difference]: Finished difference Result 764 states and 2293 transitions.
[2021-06-01 18:57:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:57:58,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:57:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:57:58,977 INFO L225 Difference]: With dead ends: 764
[2021-06-01 18:57:58,977 INFO L226 Difference]: Without dead ends: 724
[2021-06-01 18:57:58,978 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 12 SyntacticMatches, 2 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 4589.2ms TimeCoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650
[2021-06-01 18:57:58,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 724 states.
[2021-06-01 18:57:58,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 724 to 488.
[2021-06-01 18:57:58,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 488 states, 487 states have (on average 3.1806981519507187) internal successors, (1549), 487 states have internal predecessors, (1549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:58,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 488 states to 488 states and 1549 transitions.
[2021-06-01 18:57:58,983 INFO L78 Accepts]: Start accepts. Automaton has 488 states and 1549 transitions. Word has length 20
[2021-06-01 18:57:58,983 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:57:58,983 INFO L482 AbstractCegarLoop]: Abstraction has 488 states and 1549 transitions.
[2021-06-01 18:57:58,983 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:57:58,983 INFO L276 IsEmpty]: Start isEmpty. Operand 488 states and 1549 transitions.
[2021-06-01 18:57:58,984 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:57:58,984 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:57:58,984 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:57:59,204 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13384,122 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:59,205 INFO L430 AbstractCegarLoop]: === Iteration 244 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:57:59,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:57:59,205 INFO L82 PathProgramCache]: Analyzing trace with hash -1531193714, now seen corresponding path program 95 times
[2021-06-01 18:57:59,205 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:57:59,205 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741751094]
[2021-06-01 18:57:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:57:59,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:57:59,388 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:57:59,388 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:57:59,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741751094]
[2021-06-01 18:57:59,388 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741751094] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:57:59,388 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439553851]
[2021-06-01 18:57:59,388 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 123 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:57:59,414 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:57:59,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:57:59,415 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:57:59,416 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:57:59,528 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:59,528 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,532 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,533 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,537 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,537 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,541 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:59,542 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,546 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,547 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,552 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,555 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,556 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:59,561 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,565 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,565 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,569 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,570 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,574 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,575 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,579 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:59,579 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,583 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,584 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,588 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:57:59,589 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,593 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:59,593 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,597 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,598 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,602 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:59,603 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,607 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:59,607 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,612 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,616 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:59,616 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,620 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,620 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,624 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:57:59,625 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,630 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,630 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,634 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:59,635 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,639 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:57:59,640 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,643 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:59,644 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:59,648 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,652 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:57:59,653 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,656 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:59,657 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,661 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:59,662 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,665 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:57:59,666 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,670 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,670 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,674 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:57:59,675 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,678 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:57:59,679 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:57:59,698 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,701 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:57:59,702 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:57:59,868 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40
[2021-06-01 18:57:59,869 INFO L628 ElimStorePlain]: treesize reduction 394, result has 32.9 percent of original size
[2021-06-01 18:57:59,870 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:57:59,870 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 1 variables, input treesize:1873, output treesize:193
[2021-06-01 18:58:00,186 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42
[2021-06-01 18:58:00,489 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42
[2021-06-01 18:58:00,654 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:58:00,654 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439553851] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:58:00,654 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:58:00,654 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 20
[2021-06-01 18:58:00,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280751511]
[2021-06-01 18:58:00,654 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states
[2021-06-01 18:58:00,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:58:00,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants.
[2021-06-01 18:58:00,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=335, Unknown=0, NotChecked=0, Total=380
[2021-06-01 18:58:00,655 INFO L87 Difference]: Start difference. First operand 488 states and 1549 transitions. Second operand has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:58:00,977 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47
[2021-06-01 18:58:01,273 WARN L205 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62
[2021-06-01 18:58:01,656 WARN L205 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71
[2021-06-01 18:58:02,118 WARN L205 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 82
[2021-06-01 18:58:02,622 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 85
[2021-06-01 18:58:02,946 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 75
[2021-06-01 18:58:03,325 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 90
[2021-06-01 18:58:03,861 WARN L205 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93
[2021-06-01 18:58:04,223 WARN L205 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82
[2021-06-01 18:58:04,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:58:04,267 INFO L93 Difference]: Finished difference Result 966 states and 2801 transitions.
[2021-06-01 18:58:04,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:58:04,267 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 20
[2021-06-01 18:58:04,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:58:04,269 INFO L225 Difference]: With dead ends: 966
[2021-06-01 18:58:04,269 INFO L226 Difference]: Without dead ends: 894
[2021-06-01 18:58:04,269 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 4056.2ms TimeCoverageRelationStatistics Valid=193, Invalid=929, Unknown=0, NotChecked=0, Total=1122
[2021-06-01 18:58:04,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 894 states.
[2021-06-01 18:58:04,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 894 to 489.
[2021-06-01 18:58:04,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 489 states, 488 states have (on average 3.19672131147541) internal successors, (1560), 488 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:58:04,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 489 states to 489 states and 1560 transitions.
[2021-06-01 18:58:04,276 INFO L78 Accepts]: Start accepts. Automaton has 489 states and 1560 transitions. Word has length 20
[2021-06-01 18:58:04,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:58:04,276 INFO L482 AbstractCegarLoop]: Abstraction has 489 states and 1560 transitions.
[2021-06-01 18:58:04,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 1.9) internal successors, (38), 20 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:58:04,277 INFO L276 IsEmpty]: Start isEmpty. Operand 489 states and 1560 transitions.
[2021-06-01 18:58:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21
[2021-06-01 18:58:04,278 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:58:04,278 INFO L554 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:58:04,491 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13567,123 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:58:04,492 INFO L430 AbstractCegarLoop]: === Iteration 245 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]===
[2021-06-01 18:58:04,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:58:04,492 INFO L82 PathProgramCache]: Analyzing trace with hash 1070173664, now seen corresponding path program 96 times
[2021-06-01 18:58:04,492 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:58:04,492 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072232843]
[2021-06-01 18:58:04,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:58:04,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:58:04,671 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:58:04,672 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:58:04,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072232843]
[2021-06-01 18:58:04,672 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072232843] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:58:04,672 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122880085]
[2021-06-01 18:58:04,672 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
Starting monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null)
Waiting until toolchain timeout for monitored process 124 with z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:58:04,698 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:58:04,698 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:58:04,699 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 24 conjunts are in the unsatisfiable core
[2021-06-01 18:58:04,699 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:58:05,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,027 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,032 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,033 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,038 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,043 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:58:05,044 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,049 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,050 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,055 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,055 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,060 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:58:05,061 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,066 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:58:05,067 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,072 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,072 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,077 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:58:05,078 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,082 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33
[2021-06-01 18:58:05,083 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,088 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:58:05,089 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,094 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:58:05,095 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,100 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,105 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,105 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,110 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:58:05,111 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,116 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:58:05,117 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,122 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,122 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,127 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,128 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,133 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,133 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,138 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,139 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,144 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:58:05,144 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,149 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:58:05,150 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,154 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:58:05,155 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,160 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:58:05,160 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,165 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,166 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,178 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:58:05,178 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,183 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 27
[2021-06-01 18:58:05,183 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,188 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 23
[2021-06-01 18:58:05,189 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,193 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,197 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 28
[2021-06-01 18:58:05,198 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,202 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 36 treesize of output 26
[2021-06-01 18:58:05,203 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,207 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 43 treesize of output 31
[2021-06-01 18:58:05,208 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,212 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 21
[2021-06-01 18:58:05,212 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,216 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:05,217 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,221 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 32
[2021-06-01 18:58:05,222 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:05,451 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42
[2021-06-01 18:58:05,452 INFO L628 ElimStorePlain]: treesize reduction 507, result has 33.0 percent of original size
[2021-06-01 18:58:05,457 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: 6 dim-0 vars, and 8 xjuncts.
[2021-06-01 18:58:05,457 INFO L247 ElimStorePlain]: Needed 37 recursive calls to eliminate 2 variables, input treesize:2161, output treesize:254
[2021-06-01 18:58:05,646 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 106
[2021-06-01 18:58:06,238 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,239 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,239 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:58:06,240 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,248 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,249 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,249 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:58:06,250 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,258 WARN L234 Elim1Store]: Array PQE input equivalent to false
[2021-06-01 18:58:06,259 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,267 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,268 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,268 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 22
[2021-06-01 18:58:06,269 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,278 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,278 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,278 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:58:06,279 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts.
[2021-06-01 18:58:06,288 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,288 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 17
[2021-06-01 18:58:06,289 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,791 WARN L205 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 108
[2021-06-01 18:58:06,792 INFO L628 ElimStorePlain]: treesize reduction 1353, result has 18.0 percent of original size
[2021-06-01 18:58:06,798 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 9 treesize of output 7
[2021-06-01 18:58:06,799 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,928 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 102
[2021-06-01 18:58:06,928 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:58:06,934 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:58:06,935 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:06,940 INFO L173 IndexEqualityManager]: detected equality via solver
[2021-06-01 18:58:06,940 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12
[2021-06-01 18:58:06,941 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:07,157 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 91
[2021-06-01 18:58:07,157 INFO L628 ElimStorePlain]: treesize reduction 29, result has 89.1 percent of original size
[2021-06-01 18:58:07,163 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:58:07,164 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:07,268 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 86
[2021-06-01 18:58:07,268 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:58:07,268 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1858 vanished before elimination
[2021-06-01 18:58:07,268 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1860 vanished before elimination
[2021-06-01 18:58:07,269 INFO L518 ElimStorePlain]: Eliminatee array_6 vanished before elimination
[2021-06-01 18:58:07,275 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:58:07,276 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:07,377 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 81
[2021-06-01 18:58:07,378 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:58:07,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 5
[2021-06-01 18:58:07,383 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts.
[2021-06-01 18:58:07,485 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 76
[2021-06-01 18:58:07,486 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size
[2021-06-01 18:58:07,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1852 vanished before elimination
[2021-06-01 18:58:07,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1855 vanished before elimination
[2021-06-01 18:58:07,486 INFO L518 ElimStorePlain]: Eliminatee v_prenex_1854 vanished before elimination
[2021-06-01 18:58:07,489 INFO L550 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 12 dim-1 vars, End of recursive call: and 8 xjuncts.
[2021-06-01 18:58:07,489 INFO L247 ElimStorePlain]: Needed 13 recursive calls to eliminate 18 variables, input treesize:1809, output treesize:228
[2021-06-01 18:58:07,672 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 34
[2021-06-01 18:58:07,895 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:58:07,896 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1122880085] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:58:07,896 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:58:07,896 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 18
[2021-06-01 18:58:07,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500685369]
[2021-06-01 18:58:07,896 INFO L462 AbstractCegarLoop]: Interpolant automaton has 18 states
[2021-06-01 18:58:07,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:58:07,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants.
[2021-06-01 18:58:07,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=270, Unknown=0, NotChecked=0, Total=306
[2021-06-01 18:58:07,896 INFO L87 Difference]: Start difference. First operand 489 states and 1560 transitions. Second operand has 18 states, 18 states have (on average 1.8888888888888888) internal successors, (34), 18 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:58:08,295 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119
[2021-06-01 18:58:08,873 WARN L205 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 129
[2021-06-01 18:58:09,405 WARN L205 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 140
[2021-06-01 18:58:10,101 WARN L205 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 143
[2021-06-01 18:58:10,851 WARN L205 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 148
[2021-06-01 18:58:11,506 WARN L205 SmtUtils]: Spent 609.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 139
Received shutdown request...
[2021-06-01 18:58:12,028 WARN L222 SmtUtils]: Removed 7 from assertion stack
[2021-06-01 18:58:12,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:58:12,228 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 124 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13614
[2021-06-01 18:58:12,228 WARN L547 AbstractCegarLoop]: Verification canceled
[2021-06-01 18:58:12,230 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-06-01 18:58:12,232 WARN L196 ceAbstractionStarter]: Timeout
[2021-06-01 18:58:12,232 INFO L202 PluginConnector]: Adding new model word-trans.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 06:58:12 BasicIcfg
[2021-06-01 18:58:12,232 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-06-01 18:58:12,232 INFO L168 Benchmark]: Toolchain (without parser) took 732776.34 ms. Allocated memory was 350.2 MB in the beginning and 448.8 MB in the end (delta: 98.6 MB). Free memory was 329.3 MB in the beginning and 380.5 MB in the end (delta: -51.2 MB). Peak memory consumption was 270.0 MB. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.32 ms. Allocated memory is still 350.2 MB. Free memory is still 330.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 350.2 MB. Free memory was 329.1 MB in the beginning and 327.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L168 Benchmark]: Boogie Preprocessor took 15.35 ms. Allocated memory is still 350.2 MB. Free memory was 327.7 MB in the beginning and 326.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L168 Benchmark]: RCFGBuilder took 555.01 ms. Allocated memory is still 350.2 MB. Free memory was 326.5 MB in the beginning and 327.5 MB in the end (delta: -991.3 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L168 Benchmark]: TraceAbstraction took 732171.10 ms. Allocated memory was 350.2 MB in the beginning and 448.8 MB in the end (delta: 98.6 MB). Free memory was 327.0 MB in the beginning and 380.5 MB in the end (delta: -53.5 MB). Peak memory consumption was 267.4 MB. Max. memory is 16.0 GB.
[2021-06-01 18:58:12,233 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Boogie PL CUP Parser took 0.32 ms. Allocated memory is still 350.2 MB. Free memory is still 330.6 MB. There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 26.68 ms. Allocated memory is still 350.2 MB. Free memory was 329.1 MB in the beginning and 327.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Preprocessor took 15.35 ms. Allocated memory is still 350.2 MB. Free memory was 327.7 MB in the beginning and 326.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* RCFGBuilder took 555.01 ms. Allocated memory is still 350.2 MB. Free memory was 326.5 MB in the beginning and 327.5 MB in the end (delta: -991.3 kB). Peak memory consumption was 21.4 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 732171.10 ms. Allocated memory was 350.2 MB in the beginning and 448.8 MB in the end (delta: 98.6 MB). Free memory was 327.0 MB in the beginning and 380.5 MB in the end (delta: -53.5 MB). Peak memory consumption was 267.4 MB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- TimeoutResultAtElement [Line: 128]: Timeout (TraceAbstraction)
Unable to prove that assertion always holds Cancelled while BasicCegarLoop was constructing difference of abstraction (489states) and FLOYD_HOARE automaton (currently 11 states, 18 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 159 for 466ms..
- StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
CFG has 7 procedures, 38 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 732059.2ms, OverallIterations: 245, TraceHistogramMax: 1, EmptinessCheckTime: 136.5ms, AutomataDifference: 386681.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 13543 SDtfs, 25643 SDslu, 81219 SDs, 0 SdLazy, 69688 SolverSat, 3481 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 46214.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6162 GetRequests, 1834 SyntacticMatches, 170 SemanticMatches, 4157 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9474 ImplicationChecksByTransitivity, 427550.4ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=489occurred in iteration=244, InterpolantAutomatonStates: 2526, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 1318.4ms AutomataMinimizationTime, 244 MinimizatonAttempts, 51734 StatesRemovedByMinimization, 243 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 653.3ms SsaConstructionTime, 1909.8ms SatisfiabilityAnalysisTime, 312860.1ms InterpolantComputationTime, 6824 NumberOfCodeBlocks, 6824 NumberOfCodeBlocksAsserted, 473 NumberOfCheckSat, 6456 ConstructedInterpolants, 575 QuantifiedInterpolants, 217841 SizeOfPredicates, 1376 NumberOfNonLiveVariables, 9531 ConjunctsInSsa, 2470 ConjunctsInUnsatCore, 368 InterpolantComputations, 122 PerfectInterpolantSequences, 0/630 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown