/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/bench/exp3x3.wvr.bpl
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This is Ultimate 0.2.1-98707888a4ba860d5b57d27ee0e051c5b948cbbf-9870788
[2021-06-01 18:10:15,274 INFO L177 SettingsManager]: Resetting all preferences to default values...
[2021-06-01 18:10:15,277 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values
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[2021-06-01 18:10:15,327 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values
[2021-06-01 18:10:15,329 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2021-06-01 18:10:15,332 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values
[2021-06-01 18:10:15,333 INFO L181 SettingsManager]: Resetting Referee preferences to default values
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[2021-06-01 18:10:15,338 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring...
[2021-06-01 18:10:15,338 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values
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[2021-06-01 18:10:15,342 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values
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[2021-06-01 18:10:15,345 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 18:10:15,363 INFO L113 SettingsManager]: Loading preferences was successful
[2021-06-01 18:10:15,363 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2021-06-01 18:10:15,364 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2021-06-01 18:10:15,364 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2021-06-01 18:10:15,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2021-06-01 18:10:15,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2021-06-01 18:10:15,365 INFO L138 SettingsManager]: * Use SBE=true
[2021-06-01 18:10:15,365 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * sizeof long=4
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * sizeof POINTER=4
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2021-06-01 18:10:15,366 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * sizeof long double=12
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * Use constant arrays=true
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2021-06-01 18:10:15,367 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * To the following directory=./dump/
[2021-06-01 18:10:15,367 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2021-06-01 18:10:15,368 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2021-06-01 18:10:15,368 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2021-06-01 18:10:15,369 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2021-06-01 18:10:15,369 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$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2021-06-01 18:10:15,640 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2021-06-01 18:10:15,672 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2021-06-01 18:10:15,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2021-06-01 18:10:15,676 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2021-06-01 18:10:15,677 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2021-06-01 18:10:15,677 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp3x3.wvr.bpl
[2021-06-01 18:10:15,678 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/bench/exp3x3.wvr.bpl'
[2021-06-01 18:10:15,712 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2021-06-01 18:10:15,714 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2021-06-01 18:10:15,716 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2021-06-01 18:10:15,716 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2021-06-01 18:10:15,716 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2021-06-01 18:10:15,727 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,735 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,742 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2021-06-01 18:10:15,743 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2021-06-01 18:10:15,743 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2021-06-01 18:10:15,743 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2021-06-01 18:10:15,750 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,750 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,751 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,754 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/1) ...
[2021-06-01 18:10:15,759 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2021-06-01 18:10:15,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2021-06-01 18:10:15,759 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2021-06-01 18:10:15,760 INFO L275 PluginConnector]: RCFGBuilder initialized
[2021-06-01 18:10:15,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (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 18:10:15,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2021-06-01 18:10:15,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2021-06-01 18:10:15,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2021-06-01 18:10:15,831 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2021-06-01 18:10:15,831 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2021-06-01 18:10:15,831 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2021-06-01 18:10:15,831 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2021-06-01 18:10:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2021-06-01 18:10:15,832 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2021-06-01 18:10:15,832 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2021-06-01 18:10:15,832 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2021-06-01 18:10:15,833 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2021-06-01 18:10:15,833 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration
[2021-06-01 18:10:15,833 INFO L130 BoogieDeclarations]: Found specification of procedure thread4
[2021-06-01 18:10:15,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4
[2021-06-01 18:10:15,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration
[2021-06-01 18:10:15,834 INFO L130 BoogieDeclarations]: Found specification of procedure thread5
[2021-06-01 18:10:15,834 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5
[2021-06-01 18:10:15,834 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration
[2021-06-01 18:10:15,835 INFO L130 BoogieDeclarations]: Found specification of procedure thread6
[2021-06-01 18:10:15,835 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6
[2021-06-01 18:10:15,836 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 18:10:16,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2021-06-01 18:10:16,037 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2021-06-01 18:10:16,053 INFO L202 PluginConnector]: Adding new model exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 06:10:16 BoogieIcfgContainer
[2021-06-01 18:10:16,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2021-06-01 18:10:16,055 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2021-06-01 18:10:16,055 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2021-06-01 18:10:16,058 INFO L275 PluginConnector]: TraceAbstraction initialized
[2021-06-01 18:10:16,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.06 06:10:15" (1/2) ...
[2021-06-01 18:10:16,059 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32d83ff8 and model type exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.06 06:10:16, skipping insertion in model container
[2021-06-01 18:10:16,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.06 06:10:16" (2/2) ...
[2021-06-01 18:10:16,060 INFO L111 eAbstractionObserver]: Analyzing ICFG exp3x3.wvr.bpl
[2021-06-01 18:10:16,065 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2021-06-01 18:10:16,065 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2021-06-01 18:10:16,065 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2021-06-01 18:10:16,066 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2021-06-01 18:10:16,187 INFO L149 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions.
[2021-06-01 18:10:16,208 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations.
[2021-06-01 18:10:16,226 INFO L378 AbstractCegarLoop]: Interprodecural is true
[2021-06-01 18:10:16,226 INFO L379 AbstractCegarLoop]: Hoare is false
[2021-06-01 18:10:16,226 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP
[2021-06-01 18:10:16,227 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE
[2021-06-01 18:10:16,227 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION
[2021-06-01 18:10:16,227 INFO L383 AbstractCegarLoop]: Difference is false
[2021-06-01 18:10:16,227 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA
[2021-06-01 18:10:16,227 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start========
[2021-06-01 18:10:16,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 47 transitions, 142 flow
[2021-06-01 18:10:16,784 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 6831 states, 6829 states have (on average 5.865426856055059) internal successors, (40055), 6830 states have internal predecessors, (40055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:16,830 INFO L276 IsEmpty]: Start isEmpty. Operand has 6831 states, 6829 states have (on average 5.865426856055059) internal successors, (40055), 6830 states have internal predecessors, (40055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:16,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28
[2021-06-01 18:10:16,894 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:16,895 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, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:16,897 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:16,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:16,905 INFO L82 PathProgramCache]: Analyzing trace with hash -857197690, now seen corresponding path program 1 times
[2021-06-01 18:10:16,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:16,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752678506]
[2021-06-01 18:10:16,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:17,125 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 18:10:17,126 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:17,126 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752678506]
[2021-06-01 18:10:17,126 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752678506] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:17,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:17,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2
[2021-06-01 18:10:17,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631227621]
[2021-06-01 18:10:17,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states
[2021-06-01 18:10:17,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:17,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2021-06-01 18:10:17,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-01 18:10:17,174 INFO L87 Difference]: Start difference. First operand has 6831 states, 6829 states have (on average 5.865426856055059) internal successors, (40055), 6830 states have internal predecessors, (40055), 0 states have call successors, (0), 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 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:17,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:17,629 INFO L93 Difference]: Finished difference Result 13654 states and 80102 transitions.
[2021-06-01 18:10:17,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2021-06-01 18:10:17,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 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 27
[2021-06-01 18:10:17,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:17,993 INFO L225 Difference]: With dead ends: 13654
[2021-06-01 18:10:17,993 INFO L226 Difference]: Without dead ends: 13527
[2021-06-01 18:10:17,995 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 12.1ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2021-06-01 18:10:18,107 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13527 states.
[2021-06-01 18:10:18,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13527 to 8158.
[2021-06-01 18:10:18,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8158 states, 8157 states have (on average 5.851538555841609) internal successors, (47731), 8157 states have internal predecessors, (47731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:18,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8158 states to 8158 states and 47731 transitions.
[2021-06-01 18:10:18,825 INFO L78 Accepts]: Start accepts. Automaton has 8158 states and 47731 transitions. Word has length 27
[2021-06-01 18:10:18,828 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:18,828 INFO L482 AbstractCegarLoop]: Abstraction has 8158 states and 47731 transitions.
[2021-06-01 18:10:18,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 9.0) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:18,830 INFO L276 IsEmpty]: Start isEmpty. Operand 8158 states and 47731 transitions.
[2021-06-01 18:10:18,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:18,936 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:18,937 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:18,937 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2021-06-01 18:10:18,937 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:18,940 INFO L82 PathProgramCache]: Analyzing trace with hash 825785348, now seen corresponding path program 1 times
[2021-06-01 18:10:18,941 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:18,942 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2127666137]
[2021-06-01 18:10:18,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:18,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:19,009 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 18:10:19,010 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:19,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2127666137]
[2021-06-01 18:10:19,010 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2127666137] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:19,010 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [238602113]
[2021-06-01 18:10:19,010 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 18:10:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:19,069 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-06-01 18:10:19,074 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:19,277 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 18:10:19,278 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [238602113] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:19,278 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:19,278 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5
[2021-06-01 18:10:19,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460197634]
[2021-06-01 18:10:19,279 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states
[2021-06-01 18:10:19,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:19,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants.
[2021-06-01 18:10:19,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30
[2021-06-01 18:10:19,280 INFO L87 Difference]: Start difference. First operand 8158 states and 47731 transitions. Second operand has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:19,817 INFO L93 Difference]: Finished difference Result 21114 states and 121111 transitions.
[2021-06-01 18:10:19,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states.
[2021-06-01 18:10:19,818 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:19,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:19,979 INFO L225 Difference]: With dead ends: 21114
[2021-06-01 18:10:19,980 INFO L226 Difference]: Without dead ends: 21114
[2021-06-01 18:10:19,983 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 53.2ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:10:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21114 states.
[2021-06-01 18:10:20,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21114 to 10411.
[2021-06-01 18:10:20,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10411 states, 10410 states have (on average 5.94447646493756) internal successors, (61882), 10410 states have internal predecessors, (61882), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:20,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10411 states to 10411 states and 61882 transitions.
[2021-06-01 18:10:20,884 INFO L78 Accepts]: Start accepts. Automaton has 10411 states and 61882 transitions. Word has length 29
[2021-06-01 18:10:20,884 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:20,884 INFO L482 AbstractCegarLoop]: Abstraction has 10411 states and 61882 transitions.
[2021-06-01 18:10:20,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.5) internal successors, (33), 5 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 10411 states and 61882 transitions.
[2021-06-01 18:10:20,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:20,943 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:20,944 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:21,162 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2021-06-01 18:10:21,162 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:21,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:21,163 INFO L82 PathProgramCache]: Analyzing trace with hash 1262307080, now seen corresponding path program 1 times
[2021-06-01 18:10:21,163 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:21,163 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373401590]
[2021-06-01 18:10:21,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:21,189 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:21,189 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:21,189 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373401590]
[2021-06-01 18:10:21,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1373401590] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:21,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:21,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:21,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085829257]
[2021-06-01 18:10:21,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:21,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:21,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:21,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:21,191 INFO L87 Difference]: Start difference. First operand 10411 states and 61882 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:21,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:21,473 INFO L93 Difference]: Finished difference Result 14973 states and 85568 transitions.
[2021-06-01 18:10:21,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:10:21,473 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:21,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:21,556 INFO L225 Difference]: With dead ends: 14973
[2021-06-01 18:10:21,556 INFO L226 Difference]: Without dead ends: 14893
[2021-06-01 18:10:21,557 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:21,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14893 states.
[2021-06-01 18:10:22,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14893 to 11995.
[2021-06-01 18:10:22,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11995 states, 11994 states have (on average 5.837335334333834) internal successors, (70013), 11994 states have internal predecessors, (70013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:22,302 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11995 states to 11995 states and 70013 transitions.
[2021-06-01 18:10:22,302 INFO L78 Accepts]: Start accepts. Automaton has 11995 states and 70013 transitions. Word has length 29
[2021-06-01 18:10:22,302 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:22,302 INFO L482 AbstractCegarLoop]: Abstraction has 11995 states and 70013 transitions.
[2021-06-01 18:10:22,303 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:22,303 INFO L276 IsEmpty]: Start isEmpty. Operand 11995 states and 70013 transitions.
[2021-06-01 18:10:22,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:22,345 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:22,346 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:22,346 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2
[2021-06-01 18:10:22,346 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:22,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:22,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1768142840, now seen corresponding path program 1 times
[2021-06-01 18:10:22,347 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:22,347 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962973949]
[2021-06-01 18:10:22,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:22,381 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 18:10:22,382 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:22,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962973949]
[2021-06-01 18:10:22,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962973949] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:22,382 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1244728756]
[2021-06-01 18:10:22,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 18:10:22,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:22,433 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-06-01 18:10:22,434 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:22,493 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 18:10:22,493 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1244728756] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:22,493 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:22,493 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2021-06-01 18:10:22,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235855653]
[2021-06-01 18:10:22,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:22,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:22,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:22,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:22,495 INFO L87 Difference]: Start difference. First operand 11995 states and 70013 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:23,038 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:23,038 INFO L93 Difference]: Finished difference Result 30637 states and 176852 transitions.
[2021-06-01 18:10:23,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:23,039 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:23,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:23,216 INFO L225 Difference]: With dead ends: 30637
[2021-06-01 18:10:23,217 INFO L226 Difference]: Without dead ends: 30637
[2021-06-01 18:10:23,217 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:23,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30637 states.
[2021-06-01 18:10:24,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30637 to 15205.
[2021-06-01 18:10:24,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15205 states, 15204 states have (on average 5.956393054459353) internal successors, (90561), 15204 states have internal predecessors, (90561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:24,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15205 states to 15205 states and 90561 transitions.
[2021-06-01 18:10:24,311 INFO L78 Accepts]: Start accepts. Automaton has 15205 states and 90561 transitions. Word has length 29
[2021-06-01 18:10:24,311 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:24,311 INFO L482 AbstractCegarLoop]: Abstraction has 15205 states and 90561 transitions.
[2021-06-01 18:10:24,311 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:24,312 INFO L276 IsEmpty]: Start isEmpty. Operand 15205 states and 90561 transitions.
[2021-06-01 18:10:24,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:24,362 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:24,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:24,564 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:10:24,565 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:24,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:24,565 INFO L82 PathProgramCache]: Analyzing trace with hash 1844891750, now seen corresponding path program 1 times
[2021-06-01 18:10:24,566 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:24,566 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643312103]
[2021-06-01 18:10:24,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:24,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:24,624 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 18:10:24,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:24,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643312103]
[2021-06-01 18:10:24,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643312103] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:24,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1344723145]
[2021-06-01 18:10:24,624 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 18:10:24,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:24,677 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 3 conjunts are in the unsatisfiable core
[2021-06-01 18:10:24,682 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:24,739 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 18:10:24,739 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1344723145] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:24,739 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:24,739 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3
[2021-06-01 18:10:24,740 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93516209]
[2021-06-01 18:10:24,740 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:24,740 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:24,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:24,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:24,741 INFO L87 Difference]: Start difference. First operand 15205 states and 90561 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:25,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:25,333 INFO L93 Difference]: Finished difference Result 36877 states and 218066 transitions.
[2021-06-01 18:10:25,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:25,334 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:25,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:25,547 INFO L225 Difference]: With dead ends: 36877
[2021-06-01 18:10:25,547 INFO L226 Difference]: Without dead ends: 36877
[2021-06-01 18:10:25,548 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 28 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:25,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36877 states.
[2021-06-01 18:10:26,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36877 to 20146.
[2021-06-01 18:10:26,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20146 states, 20145 states have (on average 6.068304790270538) internal successors, (122246), 20145 states have internal predecessors, (122246), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:26,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20146 states to 20146 states and 122246 transitions.
[2021-06-01 18:10:26,734 INFO L78 Accepts]: Start accepts. Automaton has 20146 states and 122246 transitions. Word has length 29
[2021-06-01 18:10:26,734 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:26,734 INFO L482 AbstractCegarLoop]: Abstraction has 20146 states and 122246 transitions.
[2021-06-01 18:10:26,735 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:26,735 INFO L276 IsEmpty]: Start isEmpty. Operand 20146 states and 122246 transitions.
[2021-06-01 18:10:26,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:26,794 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:26,794 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:26,995 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:10:26,996 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:26,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:26,996 INFO L82 PathProgramCache]: Analyzing trace with hash 415252998, now seen corresponding path program 1 times
[2021-06-01 18:10:26,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:26,997 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209457130]
[2021-06-01 18:10:26,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:27,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:27,034 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:27,034 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:27,035 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209457130]
[2021-06-01 18:10:27,035 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1209457130] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:27,035 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:27,035 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:27,035 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1416294873]
[2021-06-01 18:10:27,035 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:27,035 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:27,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:27,036 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:27,036 INFO L87 Difference]: Start difference. First operand 20146 states and 122246 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:27,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:27,696 INFO L93 Difference]: Finished difference Result 31288 states and 185448 transitions.
[2021-06-01 18:10:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:27,697 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:27,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:27,865 INFO L225 Difference]: With dead ends: 31288
[2021-06-01 18:10:27,865 INFO L226 Difference]: Without dead ends: 31121
[2021-06-01 18:10:27,866 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 10.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:27,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31121 states.
[2021-06-01 18:10:28,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31121 to 21451.
[2021-06-01 18:10:28,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21451 states, 21450 states have (on average 6.020652680652681) internal successors, (129143), 21450 states have internal predecessors, (129143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:29,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21451 states to 21451 states and 129143 transitions.
[2021-06-01 18:10:29,099 INFO L78 Accepts]: Start accepts. Automaton has 21451 states and 129143 transitions. Word has length 29
[2021-06-01 18:10:29,099 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:29,100 INFO L482 AbstractCegarLoop]: Abstraction has 21451 states and 129143 transitions.
[2021-06-01 18:10:29,100 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:29,100 INFO L276 IsEmpty]: Start isEmpty. Operand 21451 states and 129143 transitions.
[2021-06-01 18:10:29,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:29,166 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:29,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:29,166 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5
[2021-06-01 18:10:29,166 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:29,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:29,167 INFO L82 PathProgramCache]: Analyzing trace with hash 436841416, now seen corresponding path program 1 times
[2021-06-01 18:10:29,167 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:29,167 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685331177]
[2021-06-01 18:10:29,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:29,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:29,201 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:29,201 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:29,201 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685331177]
[2021-06-01 18:10:29,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685331177] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:29,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:29,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:29,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032966648]
[2021-06-01 18:10:29,202 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:29,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:29,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:29,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:29,203 INFO L87 Difference]: Start difference. First operand 21451 states and 129143 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:29,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:29,541 INFO L93 Difference]: Finished difference Result 36020 states and 210532 transitions.
[2021-06-01 18:10:29,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:29,542 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:29,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:29,705 INFO L225 Difference]: With dead ends: 36020
[2021-06-01 18:10:29,706 INFO L226 Difference]: Without dead ends: 35844
[2021-06-01 18:10:29,706 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:29,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35844 states.
[2021-06-01 18:10:30,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35844 to 23309.
[2021-06-01 18:10:30,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23309 states, 23308 states have (on average 5.963188604770894) internal successors, (138990), 23308 states have internal predecessors, (138990), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:30,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23309 states to 23309 states and 138990 transitions.
[2021-06-01 18:10:30,863 INFO L78 Accepts]: Start accepts. Automaton has 23309 states and 138990 transitions. Word has length 29
[2021-06-01 18:10:30,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:30,863 INFO L482 AbstractCegarLoop]: Abstraction has 23309 states and 138990 transitions.
[2021-06-01 18:10:30,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:30,863 INFO L276 IsEmpty]: Start isEmpty. Operand 23309 states and 138990 transitions.
[2021-06-01 18:10:30,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:30,935 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:30,935 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:30,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6
[2021-06-01 18:10:30,936 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:30,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:30,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1878403238, now seen corresponding path program 2 times
[2021-06-01 18:10:30,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:30,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190774089]
[2021-06-01 18:10:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:30,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:30,966 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:30,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:30,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190774089]
[2021-06-01 18:10:30,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190774089] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:30,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:30,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:30,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509333336]
[2021-06-01 18:10:30,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:30,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:30,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:30,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:30,968 INFO L87 Difference]: Start difference. First operand 23309 states and 138990 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:31,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:31,667 INFO L93 Difference]: Finished difference Result 35264 states and 207669 transitions.
[2021-06-01 18:10:31,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:31,667 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:31,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:31,869 INFO L225 Difference]: With dead ends: 35264
[2021-06-01 18:10:31,870 INFO L226 Difference]: Without dead ends: 35264
[2021-06-01 18:10:31,870 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:31,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35264 states.
[2021-06-01 18:10:32,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35264 to 26215.
[2021-06-01 18:10:32,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26215 states, 26214 states have (on average 5.978828107118334) internal successors, (156729), 26214 states have internal predecessors, (156729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:33,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26215 states to 26215 states and 156729 transitions.
[2021-06-01 18:10:33,357 INFO L78 Accepts]: Start accepts. Automaton has 26215 states and 156729 transitions. Word has length 29
[2021-06-01 18:10:33,357 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:33,357 INFO L482 AbstractCegarLoop]: Abstraction has 26215 states and 156729 transitions.
[2021-06-01 18:10:33,357 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:33,358 INFO L276 IsEmpty]: Start isEmpty. Operand 26215 states and 156729 transitions.
[2021-06-01 18:10:33,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:33,444 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:33,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:33,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7
[2021-06-01 18:10:33,444 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:33,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:33,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1069767712, now seen corresponding path program 2 times
[2021-06-01 18:10:33,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:33,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579828471]
[2021-06-01 18:10:33,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:33,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:33,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:33,470 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:33,470 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579828471]
[2021-06-01 18:10:33,470 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579828471] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:33,470 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:33,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:33,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055576522]
[2021-06-01 18:10:33,471 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:33,471 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:33,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:33,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:33,472 INFO L87 Difference]: Start difference. First operand 26215 states and 156729 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:33,779 INFO L93 Difference]: Finished difference Result 35265 states and 205937 transitions.
[2021-06-01 18:10:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:33,779 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:33,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:33,938 INFO L225 Difference]: With dead ends: 35265
[2021-06-01 18:10:33,938 INFO L226 Difference]: Without dead ends: 35115
[2021-06-01 18:10:33,938 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.9ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:34,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35115 states.
[2021-06-01 18:10:35,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35115 to 27707.
[2021-06-01 18:10:35,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27707 states, 27706 states have (on average 5.942972641305133) internal successors, (164656), 27706 states have internal predecessors, (164656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:35,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27707 states to 27707 states and 164656 transitions.
[2021-06-01 18:10:35,221 INFO L78 Accepts]: Start accepts. Automaton has 27707 states and 164656 transitions. Word has length 29
[2021-06-01 18:10:35,221 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:35,221 INFO L482 AbstractCegarLoop]: Abstraction has 27707 states and 164656 transitions.
[2021-06-01 18:10:35,221 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:35,221 INFO L276 IsEmpty]: Start isEmpty. Operand 27707 states and 164656 transitions.
[2021-06-01 18:10:35,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:35,298 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:35,298 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:35,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8
[2021-06-01 18:10:35,299 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:35,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:35,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1363058564, now seen corresponding path program 2 times
[2021-06-01 18:10:35,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:35,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131114565]
[2021-06-01 18:10:35,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:35,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:35,328 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:35,328 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:35,328 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131114565]
[2021-06-01 18:10:35,328 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2131114565] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:35,328 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:35,328 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:35,329 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175081870]
[2021-06-01 18:10:35,329 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:35,329 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:35,329 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:35,329 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:35,330 INFO L87 Difference]: Start difference. First operand 27707 states and 164656 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:36,205 INFO L93 Difference]: Finished difference Result 45133 states and 263334 transitions.
[2021-06-01 18:10:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:36,455 INFO L225 Difference]: With dead ends: 45133
[2021-06-01 18:10:36,455 INFO L226 Difference]: Without dead ends: 45133
[2021-06-01 18:10:36,455 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:36,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45133 states.
[2021-06-01 18:10:37,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45133 to 32206.
[2021-06-01 18:10:37,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32206 states, 32205 states have (on average 5.952895513119081) internal successors, (191713), 32205 states have internal predecessors, (191713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:38,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32206 states to 32206 states and 191713 transitions.
[2021-06-01 18:10:38,003 INFO L78 Accepts]: Start accepts. Automaton has 32206 states and 191713 transitions. Word has length 29
[2021-06-01 18:10:38,003 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:38,003 INFO L482 AbstractCegarLoop]: Abstraction has 32206 states and 191713 transitions.
[2021-06-01 18:10:38,003 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:38,003 INFO L276 IsEmpty]: Start isEmpty. Operand 32206 states and 191713 transitions.
[2021-06-01 18:10:38,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:38,098 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:38,098 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:38,098 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9
[2021-06-01 18:10:38,098 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:38,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:38,098 INFO L82 PathProgramCache]: Analyzing trace with hash -69829824, now seen corresponding path program 2 times
[2021-06-01 18:10:38,099 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:38,099 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132742462]
[2021-06-01 18:10:38,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:38,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:38,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:38,127 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:38,127 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132742462]
[2021-06-01 18:10:38,127 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132742462] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:38,127 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:38,127 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:38,127 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259273428]
[2021-06-01 18:10:38,128 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:38,128 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:38,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:38,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:38,128 INFO L87 Difference]: Start difference. First operand 32206 states and 191713 transitions. Second operand has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:38,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:38,521 INFO L93 Difference]: Finished difference Result 45104 states and 260644 transitions.
[2021-06-01 18:10:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:38,521 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:38,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:38,743 INFO L225 Difference]: With dead ends: 45104
[2021-06-01 18:10:38,743 INFO L226 Difference]: Without dead ends: 44872
[2021-06-01 18:10:38,743 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:38,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44872 states.
[2021-06-01 18:10:40,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44872 to 34465.
[2021-06-01 18:10:40,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34465 states, 34464 states have (on average 5.9103122098421546) internal successors, (203693), 34464 states have internal predecessors, (203693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:40,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34465 states to 34465 states and 203693 transitions.
[2021-06-01 18:10:40,432 INFO L78 Accepts]: Start accepts. Automaton has 34465 states and 203693 transitions. Word has length 29
[2021-06-01 18:10:40,432 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:40,432 INFO L482 AbstractCegarLoop]: Abstraction has 34465 states and 203693 transitions.
[2021-06-01 18:10:40,432 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.25) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:40,433 INFO L276 IsEmpty]: Start isEmpty. Operand 34465 states and 203693 transitions.
[2021-06-01 18:10:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30
[2021-06-01 18:10:40,962 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:40,962 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, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:40,962 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10
[2021-06-01 18:10:40,962 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash 176225484, now seen corresponding path program 2 times
[2021-06-01 18:10:40,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:40,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548409804]
[2021-06-01 18:10:40,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:41,042 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:41,042 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:41,042 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548409804]
[2021-06-01 18:10:41,043 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548409804] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:41,043 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:41,043 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4
[2021-06-01 18:10:41,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895446620]
[2021-06-01 18:10:41,043 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:10:41,043 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:41,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:10:41,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:41,053 INFO L87 Difference]: Start difference. First operand 34465 states and 203693 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:41,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:41,498 INFO L93 Difference]: Finished difference Result 47735 states and 276681 transitions.
[2021-06-01 18:10:41,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:41,498 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 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 29
[2021-06-01 18:10:41,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:41,721 INFO L225 Difference]: With dead ends: 47735
[2021-06-01 18:10:41,722 INFO L226 Difference]: Without dead ends: 47735
[2021-06-01 18:10:41,722 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:41,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47735 states.
[2021-06-01 18:10:43,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47735 to 37708.
[2021-06-01 18:10:43,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37708 states, 37707 states have (on average 5.9143660328321) internal successors, (223013), 37707 states have internal predecessors, (223013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:43,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37708 states to 37708 states and 223013 transitions.
[2021-06-01 18:10:43,280 INFO L78 Accepts]: Start accepts. Automaton has 37708 states and 223013 transitions. Word has length 29
[2021-06-01 18:10:43,281 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:43,281 INFO L482 AbstractCegarLoop]: Abstraction has 37708 states and 223013 transitions.
[2021-06-01 18:10:43,281 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:43,281 INFO L276 IsEmpty]: Start isEmpty. Operand 37708 states and 223013 transitions.
[2021-06-01 18:10:43,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:10:43,389 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:43,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:43,389 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11
[2021-06-01 18:10:43,389 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:43,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:43,389 INFO L82 PathProgramCache]: Analyzing trace with hash -593663994, now seen corresponding path program 1 times
[2021-06-01 18:10:43,389 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:43,390 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12241759]
[2021-06-01 18:10:43,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:43,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:43,486 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:43,486 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:43,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12241759]
[2021-06-01 18:10:43,486 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12241759] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:43,486 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [299055523]
[2021-06-01 18:10:43,486 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 18:10:43,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:43,531 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-06-01 18:10:43,533 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:43,694 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:43,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [299055523] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:43,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:43,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4
[2021-06-01 18:10:43,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933502329]
[2021-06-01 18:10:43,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:10:43,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:43,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:10:43,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:43,697 INFO L87 Difference]: Start difference. First operand 37708 states and 223013 transitions. Second operand has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:44,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:44,610 INFO L93 Difference]: Finished difference Result 48610 states and 280421 transitions.
[2021-06-01 18:10:44,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:44,611 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 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 31
[2021-06-01 18:10:44,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:44,838 INFO L225 Difference]: With dead ends: 48610
[2021-06-01 18:10:44,838 INFO L226 Difference]: Without dead ends: 48062
[2021-06-01 18:10:44,839 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.2ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:44,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48062 states.
[2021-06-01 18:10:46,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48062 to 40315.
[2021-06-01 18:10:46,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40315 states, 40314 states have (on average 5.896785235898199) internal successors, (237723), 40314 states have internal predecessors, (237723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:46,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40315 states to 40315 states and 237723 transitions.
[2021-06-01 18:10:46,538 INFO L78 Accepts]: Start accepts. Automaton has 40315 states and 237723 transitions. Word has length 31
[2021-06-01 18:10:46,538 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:46,538 INFO L482 AbstractCegarLoop]: Abstraction has 40315 states and 237723 transitions.
[2021-06-01 18:10:46,538 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.6) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:46,538 INFO L276 IsEmpty]: Start isEmpty. Operand 40315 states and 237723 transitions.
[2021-06-01 18:10:46,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:10:46,655 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:46,656 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:46,859 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:10:46,859 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:46,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:46,859 INFO L82 PathProgramCache]: Analyzing trace with hash 2113132984, now seen corresponding path program 2 times
[2021-06-01 18:10:46,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:46,860 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354611171]
[2021-06-01 18:10:46,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:46,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:46,930 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-06-01 18:10:46,930 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:46,930 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354611171]
[2021-06-01 18:10:46,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354611171] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:46,931 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:46,931 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:46,931 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872623679]
[2021-06-01 18:10:46,931 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:46,931 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:46,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:46,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:46,932 INFO L87 Difference]: Start difference. First operand 40315 states and 237723 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:10:47,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:47,927 INFO L93 Difference]: Finished difference Result 50404 states and 290958 transitions.
[2021-06-01 18:10:47,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:10:47,928 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 31
[2021-06-01 18:10:47,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:48,267 INFO L225 Difference]: With dead ends: 50404
[2021-06-01 18:10:48,267 INFO L226 Difference]: Without dead ends: 49856
[2021-06-01 18:10:48,268 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.3ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:48,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49856 states.
[2021-06-01 18:10:49,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49856 to 42372.
[2021-06-01 18:10:49,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42372 states, 42371 states have (on average 5.882112765806802) internal successors, (249231), 42371 states have internal predecessors, (249231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:50,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42372 states to 42372 states and 249231 transitions.
[2021-06-01 18:10:50,124 INFO L78 Accepts]: Start accepts. Automaton has 42372 states and 249231 transitions. Word has length 31
[2021-06-01 18:10:50,125 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:50,125 INFO L482 AbstractCegarLoop]: Abstraction has 42372 states and 249231 transitions.
[2021-06-01 18:10:50,125 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:10:50,125 INFO L276 IsEmpty]: Start isEmpty. Operand 42372 states and 249231 transitions.
[2021-06-01 18:10:50,243 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:10:50,243 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:50,244 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:50,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13
[2021-06-01 18:10:50,244 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:50,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:50,244 INFO L82 PathProgramCache]: Analyzing trace with hash 1191880650, now seen corresponding path program 1 times
[2021-06-01 18:10:50,244 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:50,244 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2043697432]
[2021-06-01 18:10:50,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:50,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:50,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:50,285 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:50,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2043697432]
[2021-06-01 18:10:50,285 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2043697432] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:50,285 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1181337807]
[2021-06-01 18:10:50,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 18:10:50,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:50,332 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-06-01 18:10:50,334 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:50,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:50,476 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1181337807] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:50,476 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:50,476 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4
[2021-06-01 18:10:50,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [189208547]
[2021-06-01 18:10:50,477 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:10:50,477 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:50,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:10:50,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:50,478 INFO L87 Difference]: Start difference. First operand 42372 states and 249231 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:50,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:50,985 INFO L93 Difference]: Finished difference Result 53113 states and 305911 transitions.
[2021-06-01 18:10:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:50,986 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 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 31
[2021-06-01 18:10:50,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:51,842 INFO L225 Difference]: With dead ends: 53113
[2021-06-01 18:10:51,842 INFO L226 Difference]: Without dead ends: 52637
[2021-06-01 18:10:51,844 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 36.9ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:51,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52637 states.
[2021-06-01 18:10:53,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52637 to 45439.
[2021-06-01 18:10:53,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45439 states, 45438 states have (on average 5.865487037281571) internal successors, (266516), 45438 states have internal predecessors, (266516), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:53,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45439 states to 45439 states and 266516 transitions.
[2021-06-01 18:10:53,846 INFO L78 Accepts]: Start accepts. Automaton has 45439 states and 266516 transitions. Word has length 31
[2021-06-01 18:10:53,846 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:53,846 INFO L482 AbstractCegarLoop]: Abstraction has 45439 states and 266516 transitions.
[2021-06-01 18:10:53,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 4 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 45439 states and 266516 transitions.
[2021-06-01 18:10:53,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:10:53,975 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:53,975 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:54,176 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14
[2021-06-01 18:10:54,176 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:54,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:54,177 INFO L82 PathProgramCache]: Analyzing trace with hash -831103464, now seen corresponding path program 2 times
[2021-06-01 18:10:54,177 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:54,177 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277243288]
[2021-06-01 18:10:54,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:54,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:54,226 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-06-01 18:10:54,226 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:54,226 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277243288]
[2021-06-01 18:10:54,226 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277243288] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:10:54,226 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:10:54,226 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:10:54,226 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633739004]
[2021-06-01 18:10:54,227 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:10:54,227 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:54,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:10:54,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:54,227 INFO L87 Difference]: Start difference. First operand 45439 states and 266516 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:10:54,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:54,673 INFO L93 Difference]: Finished difference Result 55542 states and 319905 transitions.
[2021-06-01 18:10:54,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:10:54,673 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 31
[2021-06-01 18:10:54,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:54,914 INFO L225 Difference]: With dead ends: 55542
[2021-06-01 18:10:54,914 INFO L226 Difference]: Without dead ends: 55066
[2021-06-01 18:10:54,914 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:10:55,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55066 states.
[2021-06-01 18:10:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55066 to 48103.
[2021-06-01 18:10:56,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48103 states, 48102 states have (on average 5.849070724709991) internal successors, (281352), 48102 states have internal predecessors, (281352), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:57,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48103 states to 48103 states and 281352 transitions.
[2021-06-01 18:10:57,445 INFO L78 Accepts]: Start accepts. Automaton has 48103 states and 281352 transitions. Word has length 31
[2021-06-01 18:10:57,445 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:10:57,445 INFO L482 AbstractCegarLoop]: Abstraction has 48103 states and 281352 transitions.
[2021-06-01 18:10:57,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:10:57,446 INFO L276 IsEmpty]: Start isEmpty. Operand 48103 states and 281352 transitions.
[2021-06-01 18:10:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:10:57,593 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:10:57,593 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:10:57,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15
[2021-06-01 18:10:57,593 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:10:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:10:57,593 INFO L82 PathProgramCache]: Analyzing trace with hash -1332009242, now seen corresponding path program 1 times
[2021-06-01 18:10:57,593 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:10:57,593 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [525997668]
[2021-06-01 18:10:57,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:10:57,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:57,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:57,639 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:10:57,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [525997668]
[2021-06-01 18:10:57,639 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [525997668] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:57,639 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1441469517]
[2021-06-01 18:10:57,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
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 18:10:57,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:10:57,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 11 conjunts are in the unsatisfiable core
[2021-06-01 18:10:57,698 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:10:57,821 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:10:57,821 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1441469517] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:10:57,821 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:10:57,821 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 4] total 4
[2021-06-01 18:10:57,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230995533]
[2021-06-01 18:10:57,822 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states
[2021-06-01 18:10:57,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:10:57,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants.
[2021-06-01 18:10:57,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:57,823 INFO L87 Difference]: Start difference. First operand 48103 states and 281352 transitions. Second operand has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:10:58,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:10:58,338 INFO L93 Difference]: Finished difference Result 56784 states and 326793 transitions.
[2021-06-01 18:10:58,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states.
[2021-06-01 18:10:58,339 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 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 31
[2021-06-01 18:10:58,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:10:58,586 INFO L225 Difference]: With dead ends: 56784
[2021-06-01 18:10:58,587 INFO L226 Difference]: Without dead ends: 56381
[2021-06-01 18:10:58,587 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 28 SyntacticMatches, 3 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 29.4ms TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20
[2021-06-01 18:10:59,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56381 states.
[2021-06-01 18:11:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56381 to 50997.
[2021-06-01 18:11:00,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50997 states, 50996 states have (on average 5.823652835516511) internal successors, (296983), 50996 states have internal predecessors, (296983), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:01,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50997 states to 50997 states and 296983 transitions.
[2021-06-01 18:11:01,188 INFO L78 Accepts]: Start accepts. Automaton has 50997 states and 296983 transitions. Word has length 31
[2021-06-01 18:11:01,189 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:01,189 INFO L482 AbstractCegarLoop]: Abstraction has 50997 states and 296983 transitions.
[2021-06-01 18:11:01,189 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 8.2) internal successors, (41), 4 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:01,189 INFO L276 IsEmpty]: Start isEmpty. Operand 50997 states and 296983 transitions.
[2021-06-01 18:11:01,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32
[2021-06-01 18:11:01,354 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:01,354 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:01,554 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16
[2021-06-01 18:11:01,555 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:01,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:01,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1023820348, now seen corresponding path program 2 times
[2021-06-01 18:11:01,556 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:01,556 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457616812]
[2021-06-01 18:11:01,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:01,595 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked.
[2021-06-01 18:11:01,595 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:01,595 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457616812]
[2021-06-01 18:11:01,595 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457616812] provided 1 perfect and 0 imperfect interpolant sequences
[2021-06-01 18:11:01,595 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences.
[2021-06-01 18:11:01,595 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2021-06-01 18:11:01,595 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806542588]
[2021-06-01 18:11:01,596 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states
[2021-06-01 18:11:01,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:01,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants.
[2021-06-01 18:11:01,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:11:01,596 INFO L87 Difference]: Start difference. First operand 50997 states and 296983 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:11:02,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:02,043 INFO L93 Difference]: Finished difference Result 58483 states and 336376 transitions.
[2021-06-01 18:11:02,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states.
[2021-06-01 18:11:02,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 31
[2021-06-01 18:11:02,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:02,915 INFO L225 Difference]: With dead ends: 58483
[2021-06-01 18:11:02,915 INFO L226 Difference]: Without dead ends: 58080
[2021-06-01 18:11:02,916 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12
[2021-06-01 18:11:03,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58080 states.
[2021-06-01 18:11:04,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58080 to 53054.
[2021-06-01 18:11:04,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53054 states, 53053 states have (on average 5.811565792697868) internal successors, (308321), 53053 states have internal predecessors, (308321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53054 states to 53054 states and 308321 transitions.
[2021-06-01 18:11:04,879 INFO L78 Accepts]: Start accepts. Automaton has 53054 states and 308321 transitions. Word has length 31
[2021-06-01 18:11:04,879 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:04,879 INFO L482 AbstractCegarLoop]: Abstraction has 53054 states and 308321 transitions.
[2021-06-01 18:11:04,879 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 3 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 18:11:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 53054 states and 308321 transitions.
[2021-06-01 18:11:05,033 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:05,033 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:05,033 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:05,034 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17
[2021-06-01 18:11:05,034 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:05,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:05,034 INFO L82 PathProgramCache]: Analyzing trace with hash -1770438268, now seen corresponding path program 3 times
[2021-06-01 18:11:05,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:05,034 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384909545]
[2021-06-01 18:11:05,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:05,073 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:05,073 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:05,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384909545]
[2021-06-01 18:11:05,073 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384909545] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:05,073 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168309511]
[2021-06-01 18:11:05,073 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 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 18:11:05,127 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:11:05,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:11:05,128 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:05,132 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:05,210 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168309511] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:05,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:05,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:05,212 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787170760]
[2021-06-01 18:11:05,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:05,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:05,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:05,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:05,213 INFO L87 Difference]: Start difference. First operand 53054 states and 308321 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:07,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:07,429 INFO L93 Difference]: Finished difference Result 166964 states and 963436 transitions.
[2021-06-01 18:11:07,429 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:11:07,429 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:07,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:09,033 INFO L225 Difference]: With dead ends: 166964
[2021-06-01 18:11:09,033 INFO L226 Difference]: Without dead ends: 166964
[2021-06-01 18:11:09,033 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 143.3ms TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420
[2021-06-01 18:11:09,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166964 states.
[2021-06-01 18:11:12,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166964 to 71659.
[2021-06-01 18:11:12,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71659 states, 71658 states have (on average 5.932080158530799) internal successors, (425081), 71658 states have internal predecessors, (425081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:13,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71659 states to 71659 states and 425081 transitions.
[2021-06-01 18:11:13,185 INFO L78 Accepts]: Start accepts. Automaton has 71659 states and 425081 transitions. Word has length 33
[2021-06-01 18:11:13,185 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:13,185 INFO L482 AbstractCegarLoop]: Abstraction has 71659 states and 425081 transitions.
[2021-06-01 18:11:13,185 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:13,186 INFO L276 IsEmpty]: Start isEmpty. Operand 71659 states and 425081 transitions.
[2021-06-01 18:11:13,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:13,394 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:13,394 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:13,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,8 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:11:13,595 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:13,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:13,596 INFO L82 PathProgramCache]: Analyzing trace with hash 1115118472, now seen corresponding path program 4 times
[2021-06-01 18:11:13,596 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:13,596 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1443084090]
[2021-06-01 18:11:13,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:13,620 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:13,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:13,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1443084090]
[2021-06-01 18:11:13,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1443084090] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:13,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981001596]
[2021-06-01 18:11:13,620 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 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 18:11:13,667 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:11:13,668 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:11:13,668 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:13,669 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:13,730 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:13,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981001596] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:13,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:13,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:13,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262824543]
[2021-06-01 18:11:13,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:13,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:13,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:13,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:13,732 INFO L87 Difference]: Start difference. First operand 71659 states and 425081 transitions. Second operand has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:16,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:16,567 INFO L93 Difference]: Finished difference Result 151965 states and 880181 transitions.
[2021-06-01 18:11:16,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:11:16,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:16,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:17,414 INFO L225 Difference]: With dead ends: 151965
[2021-06-01 18:11:17,414 INFO L226 Difference]: Without dead ends: 151069
[2021-06-01 18:11:17,415 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 88.9ms TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272
[2021-06-01 18:11:17,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151069 states.
[2021-06-01 18:11:21,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151069 to 98035.
[2021-06-01 18:11:21,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98035 states, 98034 states have (on average 6.051471938307118) internal successors, (593250), 98034 states have internal predecessors, (593250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:22,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98035 states to 98035 states and 593250 transitions.
[2021-06-01 18:11:22,756 INFO L78 Accepts]: Start accepts. Automaton has 98035 states and 593250 transitions. Word has length 33
[2021-06-01 18:11:22,756 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:22,756 INFO L482 AbstractCegarLoop]: Abstraction has 98035 states and 593250 transitions.
[2021-06-01 18:11:22,756 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 4.875) internal successors, (39), 7 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 98035 states and 593250 transitions.
[2021-06-01 18:11:23,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:23,091 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:23,091 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:23,292 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,9 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:11:23,292 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:23,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:23,293 INFO L82 PathProgramCache]: Analyzing trace with hash 1087275208, now seen corresponding path program 5 times
[2021-06-01 18:11:23,293 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:23,293 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370234183]
[2021-06-01 18:11:23,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:23,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:23,340 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:23,341 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:23,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370234183]
[2021-06-01 18:11:23,341 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370234183] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:23,341 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1411840982]
[2021-06-01 18:11:23,341 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 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 18:11:23,405 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:11:23,405 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:11:23,406 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:23,407 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:23,473 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:23,473 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1411840982] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:23,473 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:23,473 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:23,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878618039]
[2021-06-01 18:11:23,473 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:23,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:23,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:23,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:23,474 INFO L87 Difference]: Start difference. First operand 98035 states and 593250 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:26,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:26,032 INFO L93 Difference]: Finished difference Result 145413 states and 850897 transitions.
[2021-06-01 18:11:26,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:11:26,033 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:26,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:27,216 INFO L225 Difference]: With dead ends: 145413
[2021-06-01 18:11:27,216 INFO L226 Difference]: Without dead ends: 145413
[2021-06-01 18:11:27,217 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 77.3ms TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:11:27,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 145413 states.
[2021-06-01 18:11:31,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 145413 to 96954.
[2021-06-01 18:11:32,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96954 states, 96953 states have (on average 6.02823017338298) internal successors, (584455), 96953 states have internal predecessors, (584455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:32,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96954 states to 96954 states and 584455 transitions.
[2021-06-01 18:11:32,625 INFO L78 Accepts]: Start accepts. Automaton has 96954 states and 584455 transitions. Word has length 33
[2021-06-01 18:11:32,625 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:32,625 INFO L482 AbstractCegarLoop]: Abstraction has 96954 states and 584455 transitions.
[2021-06-01 18:11:32,625 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:32,625 INFO L276 IsEmpty]: Start isEmpty. Operand 96954 states and 584455 transitions.
[2021-06-01 18:11:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:32,930 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:32,930 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:33,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,10 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:11:33,133 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:33,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:33,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1114801284, now seen corresponding path program 6 times
[2021-06-01 18:11:33,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:33,134 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801325999]
[2021-06-01 18:11:33,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:33,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:33,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:33,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801325999]
[2021-06-01 18:11:33,163 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [801325999] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:33,163 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [541510183]
[2021-06-01 18:11:33,163 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 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 18:11:33,215 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2021-06-01 18:11:33,215 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:11:33,216 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:33,217 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:33,303 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [541510183] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:33,303 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:33,303 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:33,304 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578900597]
[2021-06-01 18:11:33,305 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:33,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:33,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:33,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:33,306 INFO L87 Difference]: Start difference. First operand 96954 states and 584455 transitions. Second operand has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:35,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:35,238 INFO L93 Difference]: Finished difference Result 133964 states and 783258 transitions.
[2021-06-01 18:11:35,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:11:35,238 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:35,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:36,650 INFO L225 Difference]: With dead ends: 133964
[2021-06-01 18:11:36,650 INFO L226 Difference]: Without dead ends: 133804
[2021-06-01 18:11:36,650 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 58.6ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:11:36,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133804 states.
[2021-06-01 18:11:40,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133804 to 97004.
[2021-06-01 18:11:40,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97004 states, 97003 states have (on average 6.026844530581529) internal successors, (584622), 97003 states have internal predecessors, (584622), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:41,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97004 states to 97004 states and 584622 transitions.
[2021-06-01 18:11:41,984 INFO L78 Accepts]: Start accepts. Automaton has 97004 states and 584622 transitions. Word has length 33
[2021-06-01 18:11:41,984 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:41,984 INFO L482 AbstractCegarLoop]: Abstraction has 97004 states and 584622 transitions.
[2021-06-01 18:11:41,984 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.0) internal successors, (40), 7 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:41,984 INFO L276 IsEmpty]: Start isEmpty. Operand 97004 states and 584622 transitions.
[2021-06-01 18:11:42,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:42,518 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:42,518 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:42,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:11:42,721 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:42,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:42,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1890250694, now seen corresponding path program 7 times
[2021-06-01 18:11:42,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:42,722 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841310046]
[2021-06-01 18:11:42,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:42,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:42,766 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:42,766 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:42,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841310046]
[2021-06-01 18:11:42,766 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841310046] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:42,766 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [120852143]
[2021-06-01 18:11:42,766 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 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 18:11:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:42,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:42,818 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:42,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:42,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [120852143] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:42,882 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:42,882 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:42,883 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092525062]
[2021-06-01 18:11:42,883 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:42,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:42,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:42,883 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:42,883 INFO L87 Difference]: Start difference. First operand 97004 states and 584622 transitions. Second operand has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:45,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:45,513 INFO L93 Difference]: Finished difference Result 227012 states and 1346306 transitions.
[2021-06-01 18:11:45,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:11:45,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:45,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:47,495 INFO L225 Difference]: With dead ends: 227012
[2021-06-01 18:11:47,495 INFO L226 Difference]: Without dead ends: 227012
[2021-06-01 18:11:47,495 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 96.9ms TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:11:48,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227012 states.
[2021-06-01 18:11:53,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227012 to 126089.
[2021-06-01 18:11:53,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126089 states, 126088 states have (on average 6.168192056341603) internal successors, (777735), 126088 states have internal predecessors, (777735), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:55,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126089 states to 126089 states and 777735 transitions.
[2021-06-01 18:11:55,276 INFO L78 Accepts]: Start accepts. Automaton has 126089 states and 777735 transitions. Word has length 33
[2021-06-01 18:11:55,276 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:11:55,276 INFO L482 AbstractCegarLoop]: Abstraction has 126089 states and 777735 transitions.
[2021-06-01 18:11:55,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.625) internal successors, (45), 7 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:55,276 INFO L276 IsEmpty]: Start isEmpty. Operand 126089 states and 777735 transitions.
[2021-06-01 18:11:55,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:11:55,712 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:11:55,712 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:11:55,912 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22
[2021-06-01 18:11:55,913 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:11:55,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:11:55,913 INFO L82 PathProgramCache]: Analyzing trace with hash -403167046, now seen corresponding path program 8 times
[2021-06-01 18:11:55,913 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:11:55,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29808359]
[2021-06-01 18:11:55,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:11:55,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:11:55,936 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:55,936 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:11:55,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29808359]
[2021-06-01 18:11:55,936 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29808359] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:55,936 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86247840]
[2021-06-01 18:11:55,936 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 18:11:56,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:11:56,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:11:56,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:11:56,021 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:11:56,098 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:11:56,098 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86247840] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:11:56,098 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:11:56,098 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:11:56,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806487054]
[2021-06-01 18:11:56,098 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:11:56,098 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:11:56,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:11:56,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:11:56,099 INFO L87 Difference]: Start difference. First operand 126089 states and 777735 transitions. Second operand has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:11:58,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:11:58,319 INFO L93 Difference]: Finished difference Result 173970 states and 1035526 transitions.
[2021-06-01 18:11:58,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:11:58,320 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 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 33
[2021-06-01 18:11:58,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:11:59,974 INFO L225 Difference]: With dead ends: 173970
[2021-06-01 18:11:59,974 INFO L226 Difference]: Without dead ends: 173746
[2021-06-01 18:11:59,974 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 55.9ms TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:12:00,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173746 states.
[2021-06-01 18:12:05,386 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173746 to 125926.
[2021-06-01 18:12:05,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125926 states, 125925 states have (on average 6.16766329164185) internal successors, (776663), 125925 states have internal predecessors, (776663), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:07,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125926 states to 125926 states and 776663 transitions.
[2021-06-01 18:12:07,169 INFO L78 Accepts]: Start accepts. Automaton has 125926 states and 776663 transitions. Word has length 33
[2021-06-01 18:12:07,169 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:12:07,169 INFO L482 AbstractCegarLoop]: Abstraction has 125926 states and 776663 transitions.
[2021-06-01 18:12:07,169 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.375) internal successors, (43), 7 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:07,170 INFO L276 IsEmpty]: Start isEmpty. Operand 125926 states and 776663 transitions.
[2021-06-01 18:12:07,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:12:07,748 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:12:07,748 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:12:07,949 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23
[2021-06-01 18:12:07,949 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:12:07,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:12:07,950 INFO L82 PathProgramCache]: Analyzing trace with hash -383649482, now seen corresponding path program 9 times
[2021-06-01 18:12:07,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:12:07,950 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673201667]
[2021-06-01 18:12:07,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:12:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:12:07,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:07,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:12:07,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673201667]
[2021-06-01 18:12:07,970 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673201667] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:07,970 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990298889]
[2021-06-01 18:12:07,970 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 18:12:08,012 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:12:08,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:12:08,013 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:12:08,017 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:12:08,078 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:08,078 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990298889] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:08,078 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:12:08,079 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:12:08,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218860974]
[2021-06-01 18:12:08,079 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:12:08,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:12:08,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:12:08,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:12:08,080 INFO L87 Difference]: Start difference. First operand 125926 states and 776663 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:10,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:12:10,595 INFO L93 Difference]: Finished difference Result 199329 states and 1186134 transitions.
[2021-06-01 18:12:10,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:12:10,595 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 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 33
[2021-06-01 18:12:10,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:12:12,547 INFO L225 Difference]: With dead ends: 199329
[2021-06-01 18:12:12,547 INFO L226 Difference]: Without dead ends: 199329
[2021-06-01 18:12:12,548 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 71.4ms TimeCoverageRelationStatistics Valid=63, Invalid=147, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:12:12,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199329 states.
[2021-06-01 18:12:18,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199329 to 128232.
[2021-06-01 18:12:18,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128232 states, 128231 states have (on average 6.171487393843922) internal successors, (791376), 128231 states have internal predecessors, (791376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128232 states to 128232 states and 791376 transitions.
[2021-06-01 18:12:20,087 INFO L78 Accepts]: Start accepts. Automaton has 128232 states and 791376 transitions. Word has length 33
[2021-06-01 18:12:20,087 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:12:20,087 INFO L482 AbstractCegarLoop]: Abstraction has 128232 states and 791376 transitions.
[2021-06-01 18:12:20,087 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:20,087 INFO L276 IsEmpty]: Start isEmpty. Operand 128232 states and 791376 transitions.
[2021-06-01 18:12:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:12:20,607 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:12:20,607 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:12:20,807 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24
[2021-06-01 18:12:20,808 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:12:20,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:12:20,808 INFO L82 PathProgramCache]: Analyzing trace with hash -356123406, now seen corresponding path program 10 times
[2021-06-01 18:12:20,808 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:12:20,808 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039405640]
[2021-06-01 18:12:20,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:12:20,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:12:20,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:20,832 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:12:20,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039405640]
[2021-06-01 18:12:20,832 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039405640] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:20,832 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [45404723]
[2021-06-01 18:12:20,832 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 18:12:20,865 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:12:20,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:12:20,866 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:12:20,867 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:12:20,921 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:20,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [45404723] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:20,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:12:20,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:12:20,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165647721]
[2021-06-01 18:12:20,922 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:12:20,922 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:12:20,922 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:12:20,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:12:20,923 INFO L87 Difference]: Start difference. First operand 128232 states and 791376 transitions. Second operand has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:24,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:12:24,181 INFO L93 Difference]: Finished difference Result 216985 states and 1280323 transitions.
[2021-06-01 18:12:24,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:12:24,181 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 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 33
[2021-06-01 18:12:24,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:12:26,662 INFO L225 Difference]: With dead ends: 216985
[2021-06-01 18:12:26,662 INFO L226 Difference]: Without dead ends: 216825
[2021-06-01 18:12:26,662 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 68.2ms TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:12:27,128 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 216825 states.
[2021-06-01 18:12:32,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 216825 to 128330.
[2021-06-01 18:12:32,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128330 states, 128329 states have (on average 6.170133017478512) internal successors, (791807), 128329 states have internal predecessors, (791807), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:34,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128330 states to 128330 states and 791807 transitions.
[2021-06-01 18:12:34,555 INFO L78 Accepts]: Start accepts. Automaton has 128330 states and 791807 transitions. Word has length 33
[2021-06-01 18:12:34,555 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:12:34,555 INFO L482 AbstractCegarLoop]: Abstraction has 128330 states and 791807 transitions.
[2021-06-01 18:12:34,555 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:34,555 INFO L276 IsEmpty]: Start isEmpty. Operand 128330 states and 791807 transitions.
[2021-06-01 18:12:35,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:12:35,074 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:12:35,074 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:12:35,274 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:12:35,275 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:12:35,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:12:35,275 INFO L82 PathProgramCache]: Analyzing trace with hash 1477538938, now seen corresponding path program 11 times
[2021-06-01 18:12:35,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:12:35,276 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106282915]
[2021-06-01 18:12:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:12:35,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:12:35,296 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:35,296 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:12:35,296 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106282915]
[2021-06-01 18:12:35,296 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106282915] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:35,297 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1313526224]
[2021-06-01 18:12:35,297 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 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 18:12:35,336 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:12:35,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:12:35,337 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:12:35,338 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:12:35,399 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:35,399 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1313526224] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:35,399 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:12:35,399 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:12:35,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876268768]
[2021-06-01 18:12:35,400 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:12:35,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:12:35,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:12:35,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:12:35,400 INFO L87 Difference]: Start difference. First operand 128330 states and 791807 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:38,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:12:38,959 INFO L93 Difference]: Finished difference Result 212002 states and 1272275 transitions.
[2021-06-01 18:12:38,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states.
[2021-06-01 18:12:38,960 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 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 33
[2021-06-01 18:12:38,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:12:40,258 INFO L225 Difference]: With dead ends: 212002
[2021-06-01 18:12:40,259 INFO L226 Difference]: Without dead ends: 212002
[2021-06-01 18:12:40,259 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 29 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 117.9ms TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420
[2021-06-01 18:12:40,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212002 states.
[2021-06-01 18:12:45,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212002 to 140596.
[2021-06-01 18:12:46,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140596 states, 140595 states have (on average 6.156221771755752) internal successors, (865534), 140595 states have internal predecessors, (865534), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:47,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140596 states to 140596 states and 865534 transitions.
[2021-06-01 18:12:47,863 INFO L78 Accepts]: Start accepts. Automaton has 140596 states and 865534 transitions. Word has length 33
[2021-06-01 18:12:47,863 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:12:47,863 INFO L482 AbstractCegarLoop]: Abstraction has 140596 states and 865534 transitions.
[2021-06-01 18:12:47,863 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:47,863 INFO L276 IsEmpty]: Start isEmpty. Operand 140596 states and 865534 transitions.
[2021-06-01 18:12:48,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:12:48,366 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:12:48,366 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:12:48,569 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26
[2021-06-01 18:12:48,570 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:12:48,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:12:48,570 INFO L82 PathProgramCache]: Analyzing trace with hash -1859308072, now seen corresponding path program 12 times
[2021-06-01 18:12:48,570 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:12:48,570 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836195468]
[2021-06-01 18:12:48,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:12:48,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:12:48,591 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:48,591 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:12:48,591 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836195468]
[2021-06-01 18:12:48,592 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1836195468] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:48,592 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475358157]
[2021-06-01 18:12:48,592 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 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 18:12:48,622 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:12:48,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:12:48,623 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:12:48,623 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:12:49,570 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:12:49,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475358157] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:12:49,571 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:12:49,571 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7
[2021-06-01 18:12:49,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074896268]
[2021-06-01 18:12:49,571 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states
[2021-06-01 18:12:49,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:12:49,572 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants.
[2021-06-01 18:12:49,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56
[2021-06-01 18:12:49,572 INFO L87 Difference]: Start difference. First operand 140596 states and 865534 transitions. Second operand has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:12:52,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:12:52,105 INFO L93 Difference]: Finished difference Result 227249 states and 1340487 transitions.
[2021-06-01 18:12:52,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:12:52,106 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 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 33
[2021-06-01 18:12:52,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:12:54,238 INFO L225 Difference]: With dead ends: 227249
[2021-06-01 18:12:54,239 INFO L226 Difference]: Without dead ends: 226769
[2021-06-01 18:12:54,239 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 98.4ms TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272
[2021-06-01 18:12:54,711 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226769 states.
[2021-06-01 18:12:59,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226769 to 146902.
[2021-06-01 18:13:00,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146902 states, 146901 states have (on average 6.137010639818653) internal successors, (901533), 146901 states have internal predecessors, (901533), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:13:02,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146902 states to 146902 states and 901533 transitions.
[2021-06-01 18:13:02,110 INFO L78 Accepts]: Start accepts. Automaton has 146902 states and 901533 transitions. Word has length 33
[2021-06-01 18:13:02,111 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:13:02,111 INFO L482 AbstractCegarLoop]: Abstraction has 146902 states and 901533 transitions.
[2021-06-01 18:13:02,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 7 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:13:02,111 INFO L276 IsEmpty]: Start isEmpty. Operand 146902 states and 901533 transitions.
[2021-06-01 18:13:02,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:13:02,655 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:13:02,655 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:13:02,856 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27
[2021-06-01 18:13:02,857 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:13:02,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:13:02,857 INFO L82 PathProgramCache]: Analyzing trace with hash 935111500, now seen corresponding path program 3 times
[2021-06-01 18:13:02,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:13:02,858 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018393254]
[2021-06-01 18:13:02,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:13:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:13:02,882 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:13:02,882 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:13:02,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018393254]
[2021-06-01 18:13:02,882 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018393254] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:13:02,882 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1227941567]
[2021-06-01 18:13:02,883 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 18:13:02,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:13:02,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:13:02,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:13:02,918 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:13:02,987 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:13:02,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1227941567] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:13:02,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:13:02,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-06-01 18:13:02,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575053243]
[2021-06-01 18:13:02,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:13:02,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:13:02,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:13:02,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:13:02,989 INFO L87 Difference]: Start difference. First operand 146902 states and 901533 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:13:10,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:13:10,236 INFO L93 Difference]: Finished difference Result 514975 states and 3149120 transitions.
[2021-06-01 18:13:10,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:13:10,249 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 33
[2021-06-01 18:13:10,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:13:17,566 INFO L225 Difference]: With dead ends: 514975
[2021-06-01 18:13:17,567 INFO L226 Difference]: Without dead ends: 514975
[2021-06-01 18:13:17,568 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 104.3ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:13:20,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514975 states.
[2021-06-01 18:13:34,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514975 to 223496.
[2021-06-01 18:13:34,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 223496 states, 223495 states have (on average 6.274547529027495) internal successors, (1402330), 223495 states have internal predecessors, (1402330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:13:36,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223496 states to 223496 states and 1402330 transitions.
[2021-06-01 18:13:36,950 INFO L78 Accepts]: Start accepts. Automaton has 223496 states and 1402330 transitions. Word has length 33
[2021-06-01 18:13:36,951 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:13:36,951 INFO L482 AbstractCegarLoop]: Abstraction has 223496 states and 1402330 transitions.
[2021-06-01 18:13:36,951 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:13:36,951 INFO L276 IsEmpty]: Start isEmpty. Operand 223496 states and 1402330 transitions.
[2021-06-01 18:13:37,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:13:37,885 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:13:37,886 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:13:38,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28
[2021-06-01 18:13:38,087 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:13:38,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:13:38,087 INFO L82 PathProgramCache]: Analyzing trace with hash -1788862708, now seen corresponding path program 4 times
[2021-06-01 18:13:38,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:13:38,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [846051426]
[2021-06-01 18:13:38,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:13:38,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:13:38,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:13:38,111 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:13:38,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [846051426]
[2021-06-01 18:13:38,111 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [846051426] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:13:38,111 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886727206]
[2021-06-01 18:13:38,111 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 18:13:38,143 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:13:38,143 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:13:38,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:13:38,144 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:13:38,219 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:13:38,219 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886727206] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:13:38,219 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:13:38,219 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-06-01 18:13:38,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923900582]
[2021-06-01 18:13:38,220 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:13:38,220 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:13:38,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:13:38,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:13:38,220 INFO L87 Difference]: Start difference. First operand 223496 states and 1402330 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:13:44,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:13:44,794 INFO L93 Difference]: Finished difference Result 462426 states and 2827177 transitions.
[2021-06-01 18:13:44,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:13:44,795 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 33
[2021-06-01 18:13:44,795 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:13:48,862 INFO L225 Difference]: With dead ends: 462426
[2021-06-01 18:13:48,862 INFO L226 Difference]: Without dead ends: 461530
[2021-06-01 18:13:48,862 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 61.3ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:13:49,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461530 states.
[2021-06-01 18:14:04,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461530 to 306370.
[2021-06-01 18:14:04,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 306370 states, 306369 states have (on average 6.378080027679041) internal successors, (1954046), 306369 states have internal predecessors, (1954046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:14:08,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306370 states to 306370 states and 1954046 transitions.
[2021-06-01 18:14:08,884 INFO L78 Accepts]: Start accepts. Automaton has 306370 states and 1954046 transitions. Word has length 33
[2021-06-01 18:14:08,884 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:14:08,884 INFO L482 AbstractCegarLoop]: Abstraction has 306370 states and 1954046 transitions.
[2021-06-01 18:14:08,884 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:14:08,884 INFO L276 IsEmpty]: Start isEmpty. Operand 306370 states and 1954046 transitions.
[2021-06-01 18:14:11,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:14:11,897 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:14:11,897 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:14:12,120 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:14:12,121 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:14:12,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:14:12,121 INFO L82 PathProgramCache]: Analyzing trace with hash 1047702216, now seen corresponding path program 5 times
[2021-06-01 18:14:12,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:14:12,121 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154227967]
[2021-06-01 18:14:12,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:14:12,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:14:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:14:12,152 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:14:12,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154227967]
[2021-06-01 18:14:12,152 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154227967] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:14:12,152 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [99220752]
[2021-06-01 18:14:12,152 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 18:14:12,243 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:14:12,243 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:14:12,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:14:12,245 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:14:12,351 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:14:12,351 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [99220752] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:14:12,352 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:14:12,352 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:14:12,352 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145259337]
[2021-06-01 18:14:12,352 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:14:12,352 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:14:12,352 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:14:12,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:14:12,353 INFO L87 Difference]: Start difference. First operand 306370 states and 1954046 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:14:20,414 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:14:20,414 INFO L93 Difference]: Finished difference Result 461475 states and 2840923 transitions.
[2021-06-01 18:14:20,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states.
[2021-06-01 18:14:20,415 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 33
[2021-06-01 18:14:20,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:14:27,284 INFO L225 Difference]: With dead ends: 461475
[2021-06-01 18:14:27,284 INFO L226 Difference]: Without dead ends: 461475
[2021-06-01 18:14:27,285 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 58.8ms TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:14:28,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 461475 states.
[2021-06-01 18:14:42,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 461475 to 301660.
[2021-06-01 18:14:43,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 301660 states, 301659 states have (on average 6.34969949512529) internal successors, (1915444), 301659 states have internal predecessors, (1915444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:14:47,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301660 states to 301660 states and 1915444 transitions.
[2021-06-01 18:14:47,163 INFO L78 Accepts]: Start accepts. Automaton has 301660 states and 1915444 transitions. Word has length 33
[2021-06-01 18:14:47,164 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:14:47,164 INFO L482 AbstractCegarLoop]: Abstraction has 301660 states and 1915444 transitions.
[2021-06-01 18:14:47,164 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:14:47,164 INFO L276 IsEmpty]: Start isEmpty. Operand 301660 states and 1915444 transitions.
[2021-06-01 18:14:48,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:14:48,550 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:14:48,550 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:14:48,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,20 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:14:48,753 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:14:48,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:14:48,753 INFO L82 PathProgramCache]: Analyzing trace with hash -385186172, now seen corresponding path program 6 times
[2021-06-01 18:14:48,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:14:48,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032877172]
[2021-06-01 18:14:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:14:48,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:14:48,774 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:14:48,774 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:14:48,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032877172]
[2021-06-01 18:14:48,774 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032877172] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:14:48,774 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225855010]
[2021-06-01 18:14:48,774 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 18:14:48,815 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s)
[2021-06-01 18:14:48,815 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:14:48,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:14:48,816 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:14:48,884 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:14:48,884 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225855010] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:14:48,884 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:14:48,884 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:14:48,885 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791314246]
[2021-06-01 18:14:48,885 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:14:48,885 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:14:48,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:14:48,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:14:48,885 INFO L87 Difference]: Start difference. First operand 301660 states and 1915444 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:14:56,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:14:56,238 INFO L93 Difference]: Finished difference Result 410582 states and 2520049 transitions.
[2021-06-01 18:14:56,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:14:56,239 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 33
[2021-06-01 18:14:56,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:15:01,728 INFO L225 Difference]: With dead ends: 410582
[2021-06-01 18:15:01,729 INFO L226 Difference]: Without dead ends: 410350
[2021-06-01 18:15:01,729 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 52.1ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:15:02,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410350 states.
[2021-06-01 18:15:16,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410350 to 302246.
[2021-06-01 18:15:16,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302246 states, 302245 states have (on average 6.348105014144155) internal successors, (1918683), 302245 states have internal predecessors, (1918683), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:15:20,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302246 states to 302246 states and 1918683 transitions.
[2021-06-01 18:15:20,791 INFO L78 Accepts]: Start accepts. Automaton has 302246 states and 1918683 transitions. Word has length 33
[2021-06-01 18:15:20,791 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:15:20,791 INFO L482 AbstractCegarLoop]: Abstraction has 302246 states and 1918683 transitions.
[2021-06-01 18:15:20,791 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:15:20,791 INFO L276 IsEmpty]: Start isEmpty. Operand 302246 states and 1918683 transitions.
[2021-06-01 18:15:22,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:15:22,244 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:15:22,244 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:15:22,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31
[2021-06-01 18:15:22,445 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:15:22,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:15:22,445 INFO L82 PathProgramCache]: Analyzing trace with hash -18447782, now seen corresponding path program 7 times
[2021-06-01 18:15:22,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:15:22,446 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025969766]
[2021-06-01 18:15:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:15:22,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:15:22,467 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-06-01 18:15:22,467 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:15:22,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025969766]
[2021-06-01 18:15:22,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1025969766] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:15:22,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500340083]
[2021-06-01 18:15:22,468 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 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 18:15:22,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:15:22,529 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:15:22,529 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:15:22,601 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:15:22,601 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500340083] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:15:22,601 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:15:22,601 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:15:22,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974424727]
[2021-06-01 18:15:22,601 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:15:22,602 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:15:22,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:15:22,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:15:22,602 INFO L87 Difference]: Start difference. First operand 302246 states and 1918683 transitions. Second operand has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:15:30,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:15:30,426 INFO L93 Difference]: Finished difference Result 543501 states and 3319923 transitions.
[2021-06-01 18:15:30,427 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:15:30,427 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 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 33
[2021-06-01 18:15:30,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:15:37,539 INFO L225 Difference]: With dead ends: 543501
[2021-06-01 18:15:37,539 INFO L226 Difference]: Without dead ends: 543501
[2021-06-01 18:15:37,540 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 44.7ms TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:15:40,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 543501 states.
[2021-06-01 18:15:58,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 543501 to 302246.
[2021-06-01 18:15:59,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302246 states, 302245 states have (on average 6.332521629803636) internal successors, (1913973), 302245 states have internal predecessors, (1913973), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:16:03,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302246 states to 302246 states and 1913973 transitions.
[2021-06-01 18:16:03,603 INFO L78 Accepts]: Start accepts. Automaton has 302246 states and 1913973 transitions. Word has length 33
[2021-06-01 18:16:03,604 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:16:03,604 INFO L482 AbstractCegarLoop]: Abstraction has 302246 states and 1913973 transitions.
[2021-06-01 18:16:03,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.571428571428571) internal successors, (39), 6 states have internal predecessors, (39), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:16:03,604 INFO L276 IsEmpty]: Start isEmpty. Operand 302246 states and 1913973 transitions.
[2021-06-01 18:16:04,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:16:04,939 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:16:04,939 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:16:05,147 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32
[2021-06-01 18:16:05,148 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:16:05,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:16:05,148 INFO L82 PathProgramCache]: Analyzing trace with hash -256411174, now seen corresponding path program 8 times
[2021-06-01 18:16:05,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:16:05,148 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071754188]
[2021-06-01 18:16:05,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:16:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:16:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-06-01 18:16:05,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:16:05,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071754188]
[2021-06-01 18:16:05,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071754188] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:16:05,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462173889]
[2021-06-01 18:16:05,904 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 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 18:16:05,952 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2021-06-01 18:16:05,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:16:05,953 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:16:05,954 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:16:06,008 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:16:06,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462173889] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:16:06,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:16:06,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:16:06,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618623353]
[2021-06-01 18:16:06,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:16:06,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:16:06,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:16:06,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:16:06,010 INFO L87 Difference]: Start difference. First operand 302246 states and 1913973 transitions. Second operand has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:16:12,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:16:12,088 INFO L93 Difference]: Finished difference Result 447767 states and 2726927 transitions.
[2021-06-01 18:16:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:16:12,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 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 33
[2021-06-01 18:16:12,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:16:18,242 INFO L225 Difference]: With dead ends: 447767
[2021-06-01 18:16:18,243 INFO L226 Difference]: Without dead ends: 447543
[2021-06-01 18:16:18,243 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 47.8ms TimeCoverageRelationStatistics Valid=44, Invalid=88, Unknown=0, NotChecked=0, Total=132
[2021-06-01 18:16:20,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 447543 states.
[2021-06-01 18:16:35,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 447543 to 293050.
[2021-06-01 18:16:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 293050 states, 293049 states have (on average 6.319526768560889) internal successors, (1851931), 293049 states have internal predecessors, (1851931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:16:39,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 293050 states to 293050 states and 1851931 transitions.
[2021-06-01 18:16:39,631 INFO L78 Accepts]: Start accepts. Automaton has 293050 states and 1851931 transitions. Word has length 33
[2021-06-01 18:16:39,631 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:16:39,631 INFO L482 AbstractCegarLoop]: Abstraction has 293050 states and 1851931 transitions.
[2021-06-01 18:16:39,631 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.285714285714286) internal successors, (37), 6 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:16:39,631 INFO L276 IsEmpty]: Start isEmpty. Operand 293050 states and 1851931 transitions.
[2021-06-01 18:16:41,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:16:41,770 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:16:41,770 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:16:41,970 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:16:41,970 INFO L430 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:16:41,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:16:41,971 INFO L82 PathProgramCache]: Analyzing trace with hash 1316483414, now seen corresponding path program 9 times
[2021-06-01 18:16:41,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:16:41,971 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308084248]
[2021-06-01 18:16:41,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:16:41,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:16:41,993 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-06-01 18:16:41,994 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:16:41,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308084248]
[2021-06-01 18:16:41,994 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308084248] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:16:41,994 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [250851322]
[2021-06-01 18:16:41,994 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 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 18:16:42,031 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s)
[2021-06-01 18:16:42,032 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:16:42,032 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:16:42,033 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:16:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:16:42,086 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [250851322] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:16:42,086 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:16:42,086 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:16:42,086 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721291397]
[2021-06-01 18:16:42,086 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:16:42,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:16:42,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:16:42,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:16:42,087 INFO L87 Difference]: Start difference. First operand 293050 states and 1851931 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:16:49,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:16:49,768 INFO L93 Difference]: Finished difference Result 554308 states and 3389253 transitions.
[2021-06-01 18:16:49,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states.
[2021-06-01 18:16:49,781 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 33
[2021-06-01 18:16:49,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:16:56,284 INFO L225 Difference]: With dead ends: 554308
[2021-06-01 18:16:56,285 INFO L226 Difference]: Without dead ends: 554308
[2021-06-01 18:16:56,285 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 71.8ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182
[2021-06-01 18:16:58,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 554308 states.
[2021-06-01 18:17:16,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 554308 to 297760.
[2021-06-01 18:17:17,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297760 states, 297759 states have (on average 6.317568906397455) internal successors, (1881113), 297759 states have internal predecessors, (1881113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:17:21,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297760 states to 297760 states and 1881113 transitions.
[2021-06-01 18:17:21,419 INFO L78 Accepts]: Start accepts. Automaton has 297760 states and 1881113 transitions. Word has length 33
[2021-06-01 18:17:21,419 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:17:21,419 INFO L482 AbstractCegarLoop]: Abstraction has 297760 states and 1881113 transitions.
[2021-06-01 18:17:21,419 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:17:21,419 INFO L276 IsEmpty]: Start isEmpty. Operand 297760 states and 1881113 transitions.
[2021-06-01 18:17:23,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:17:23,600 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:17:23,601 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:17:23,808 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34
[2021-06-01 18:17:23,809 INFO L430 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:17:23,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:17:23,809 INFO L82 PathProgramCache]: Analyzing trace with hash -116404974, now seen corresponding path program 10 times
[2021-06-01 18:17:23,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:17:23,809 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1441336155]
[2021-06-01 18:17:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:17:23,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:17:23,825 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked.
[2021-06-01 18:17:23,826 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:17:23,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1441336155]
[2021-06-01 18:17:23,826 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1441336155] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:17:23,826 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [431976877]
[2021-06-01 18:17:23,826 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 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 18:17:23,874 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2021-06-01 18:17:23,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:17:23,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:17:23,875 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:17:23,929 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:17:23,929 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [431976877] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:17:23,929 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:17:23,929 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5] total 6
[2021-06-01 18:17:23,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556773691]
[2021-06-01 18:17:23,929 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:17:23,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:17:23,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:17:23,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:17:23,930 INFO L87 Difference]: Start difference. First operand 297760 states and 1881113 transitions. Second operand has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:17:30,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:17:30,242 INFO L93 Difference]: Finished difference Result 498176 states and 3017840 transitions.
[2021-06-01 18:17:30,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states.
[2021-06-01 18:17:30,242 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 33
[2021-06-01 18:17:30,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:17:37,041 INFO L225 Difference]: With dead ends: 498176
[2021-06-01 18:17:37,041 INFO L226 Difference]: Without dead ends: 497944
[2021-06-01 18:17:37,041 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 52.3ms TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156
[2021-06-01 18:17:39,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 497944 states.
[2021-06-01 18:17:55,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 497944 to 297760.
[2021-06-01 18:17:55,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297760 states, 297759 states have (on average 6.317192763274997) internal successors, (1881001), 297759 states have internal predecessors, (1881001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:17:59,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297760 states to 297760 states and 1881001 transitions.
[2021-06-01 18:17:59,596 INFO L78 Accepts]: Start accepts. Automaton has 297760 states and 1881001 transitions. Word has length 33
[2021-06-01 18:17:59,596 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:17:59,596 INFO L482 AbstractCegarLoop]: Abstraction has 297760 states and 1881001 transitions.
[2021-06-01 18:17:59,596 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.142857142857143) internal successors, (36), 6 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 18:17:59,596 INFO L276 IsEmpty]: Start isEmpty. Operand 297760 states and 1881001 transitions.
[2021-06-01 18:18:00,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:18:00,937 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:18:00,937 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:18:01,152 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,25 z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2021-06-01 18:18:01,153 INFO L430 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:18:01,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:18:01,153 INFO L82 PathProgramCache]: Analyzing trace with hash -443569526, now seen corresponding path program 11 times
[2021-06-01 18:18:01,153 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:18:01,153 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166872550]
[2021-06-01 18:18:01,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:18:01,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:18:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:18:01,174 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:18:01,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166872550]
[2021-06-01 18:18:01,174 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166872550] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:18:01,174 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787441296]
[2021-06-01 18:18:01,174 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 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 18:18:01,228 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 3 check-sat command(s)
[2021-06-01 18:18:01,228 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:18:01,229 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:18:01,229 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:18:01,281 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:18:01,281 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787441296] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:18:01,282 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:18:01,282 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-06-01 18:18:01,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1825354327]
[2021-06-01 18:18:01,283 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:18:01,283 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:18:01,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:18:01,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:18:01,283 INFO L87 Difference]: Start difference. First operand 297760 states and 1881001 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:18:08,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:18:08,646 INFO L93 Difference]: Finished difference Result 518884 states and 3204697 transitions.
[2021-06-01 18:18:08,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states.
[2021-06-01 18:18:08,646 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 33
[2021-06-01 18:18:08,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:18:14,992 INFO L225 Difference]: With dead ends: 518884
[2021-06-01 18:18:14,992 INFO L226 Difference]: Without dead ends: 518884
[2021-06-01 18:18:14,993 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 30 SyntacticMatches, 2 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 104.4ms TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342
[2021-06-01 18:18:17,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518884 states.
[2021-06-01 18:18:35,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518884 to 324337.
[2021-06-01 18:18:36,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324337 states, 324336 states have (on average 6.269399634946475) internal successors, (2033392), 324336 states have internal predecessors, (2033392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:18:39,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324337 states to 324337 states and 2033392 transitions.
[2021-06-01 18:18:39,585 INFO L78 Accepts]: Start accepts. Automaton has 324337 states and 2033392 transitions. Word has length 33
[2021-06-01 18:18:39,585 INFO L84 Accepts]: Finished accepts. word is rejected.
[2021-06-01 18:18:39,585 INFO L482 AbstractCegarLoop]: Abstraction has 324337 states and 2033392 transitions.
[2021-06-01 18:18:39,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:18:39,585 INFO L276 IsEmpty]: Start isEmpty. Operand 324337 states and 2033392 transitions.
[2021-06-01 18:18:41,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34
[2021-06-01 18:18:41,725 INFO L546 BasicCegarLoop]: Found error trace
[2021-06-01 18:18:41,725 INFO L554 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1]
[2021-06-01 18:18:41,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36
[2021-06-01 18:18:41,926 INFO L430 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr4INUSE_VIOLATION]===
[2021-06-01 18:18:41,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2021-06-01 18:18:41,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1996023656, now seen corresponding path program 12 times
[2021-06-01 18:18:41,926 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2021-06-01 18:18:41,926 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238878712]
[2021-06-01 18:18:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2021-06-01 18:18:41,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2021-06-01 18:18:41,946 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:18:41,946 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2021-06-01 18:18:41,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238878712]
[2021-06-01 18:18:41,946 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238878712] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:18:41,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673624132]
[2021-06-01 18:18:41,947 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 18:18:41,986 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s)
[2021-06-01 18:18:41,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2021-06-01 18:18:41,987 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core
[2021-06-01 18:18:41,987 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2021-06-01 18:18:42,038 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2021-06-01 18:18:42,038 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673624132] provided 0 perfect and 1 imperfect interpolant sequences
[2021-06-01 18:18:42,038 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences.
[2021-06-01 18:18:42,038 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6
[2021-06-01 18:18:42,038 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597085754]
[2021-06-01 18:18:42,039 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states
[2021-06-01 18:18:42,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2021-06-01 18:18:42,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants.
[2021-06-01 18:18:42,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42
[2021-06-01 18:18:42,039 INFO L87 Difference]: Start difference. First operand 324337 states and 2033392 transitions. Second operand has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 18:18:48,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization.
[2021-06-01 18:18:48,960 INFO L93 Difference]: Finished difference Result 506455 states and 3046908 transitions.
[2021-06-01 18:18:48,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states.
[2021-06-01 18:18:48,960 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.0) internal successors, (35), 6 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 33
[2021-06-01 18:18:48,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted.
[2021-06-01 18:18:56,590 INFO L225 Difference]: With dead ends: 506455
[2021-06-01 18:18:56,591 INFO L226 Difference]: Without dead ends: 505759
[2021-06-01 18:18:56,591 INFO L810 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 60.7ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210
[2021-06-01 18:18:58,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 505759 states.
Received shutdown request...
[2021-06-01 18:19:13,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 505759 to 342540.
[2021-06-01 18:19:14,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342540 states, 342539 states have (on average 6.238892505670887) internal successors, (2137064), 342539 states have internal predecessors, (2137064), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)
[2021-06-01 18:19:14,380 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37
[2021-06-01 18:19:14,381 WARN L547 AbstractCegarLoop]: Verification canceled
[2021-06-01 18:19:14,383 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2021-06-01 18:19:14,386 WARN L196 ceAbstractionStarter]: Timeout
[2021-06-01 18:19:14,386 INFO L202 PluginConnector]: Adding new model exp3x3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.06 06:19:14 BasicIcfg
[2021-06-01 18:19:14,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: Toolchain (without parser) took 538674.04 ms. Allocated memory was 381.7 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 360.3 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 8.7 GB. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 381.7 MB. Free memory was 361.5 MB in the beginning and 361.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.52 ms. Allocated memory is still 381.7 MB. Free memory was 360.2 MB in the beginning and 358.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: Boogie Preprocessor took 15.78 ms. Allocated memory is still 381.7 MB. Free memory was 358.8 MB in the beginning and 357.8 MB in the end (delta: 983.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: RCFGBuilder took 294.18 ms. Allocated memory is still 381.7 MB. Free memory was 357.7 MB in the beginning and 344.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,387 INFO L168 Benchmark]: TraceAbstraction took 538331.59 ms. Allocated memory was 381.7 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 344.3 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 8.7 GB. Max. memory is 16.0 GB.
[2021-06-01 18:19:14,388 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 0.13 ms. Allocated memory is still 381.7 MB. Free memory was 361.5 MB in the beginning and 361.4 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Procedure Inliner took 26.52 ms. Allocated memory is still 381.7 MB. Free memory was 360.2 MB in the beginning and 358.8 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB.
* Boogie Preprocessor took 15.78 ms. Allocated memory is still 381.7 MB. Free memory was 358.8 MB in the beginning and 357.8 MB in the end (delta: 983.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB.
* RCFGBuilder took 294.18 ms. Allocated memory is still 381.7 MB. Free memory was 357.7 MB in the beginning and 344.8 MB in the end (delta: 12.9 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.0 GB.
* TraceAbstraction took 538331.59 ms. Allocated memory was 381.7 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 344.3 MB in the beginning and 10.5 GB in the end (delta: -10.2 GB). Peak memory consumption was 8.7 GB. Max. memory is 16.0 GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction)
Unable to prove that assertion always holds Cancelled while ReachableStatesComputation was computing reachable states (1 states constructedinput type DoubleDeckerAutomaton).
- StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances
CFG has 13 procedures, 72 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 538157.5ms, OverallIterations: 38, TraceHistogramMax: 2, EmptinessCheckTime: 22693.7ms, AutomataDifference: 193762.6ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 556.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 3122 SDtfs, 7256 SDslu, 8052 SDs, 0 SdLazy, 7063 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4442.4ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1141 GetRequests, 787 SyntacticMatches, 38 SemanticMatches, 316 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 523 ImplicationChecksByTransitivity, 1860.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=324337occurred in iteration=37, InterpolantAutomatonStates: 355, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 309088.2ms AutomataMinimizationTime, 38 MinimizatonAttempts, 2617749 StatesRemovedByMinimization, 37 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 183.6ms SsaConstructionTime, 567.2ms SatisfiabilityAnalysisTime, 4840.4ms InterpolantComputationTime, 2032 NumberOfCodeBlocks, 2032 NumberOfCodeBlocksAsserted, 92 NumberOfCheckSat, 1968 ConstructedInterpolants, 0 QuantifiedInterpolants, 8481 SizeOfPredicates, 81 NumberOfNonLiveVariables, 3041 ConjunctsInSsa, 142 ConjunctsInUnsatCore, 64 InterpolantComputations, 12 PerfectInterpolantSequences, 122/232 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