/usr/bin/java -Xmx8000000000 -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/popl20/min-max-dec.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 17:57:59,982 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 17:57:59,984 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 17:58:00,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 17:58:00,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 17:58:00,017 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 17:58:00,020 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 17:58:00,028 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 17:58:00,030 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 17:58:00,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 17:58:00,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 17:58:00,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 17:58:00,037 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 17:58:00,039 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 17:58:00,040 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 17:58:00,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 17:58:00,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 17:58:00,044 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 17:58:00,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 17:58:00,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 17:58:00,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 17:58:00,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 17:58:00,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 17:58:00,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 17:58:00,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-07-09 17:58:00,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-07-09 17:58:00,064 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-07-09 17:58:00,065 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-07-09 17:58:00,066 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-07-09 17:58:00,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-07-09 17:58:00,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 17:58:00,069 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 17:58:00,071 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 17:58:00,071 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 17:58:00,072 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 17:58:00,073 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 17:58:00,073 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 17:58:00,073 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 17:58:00,074 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 17:58:00,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 17:58:00,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 17:58:00,089 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 [2021-07-09 17:58:00,133 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 17:58:00,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 17:58:00,134 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-07-09 17:58:00,134 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-07-09 17:58:00,137 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 17:58:00,137 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 17:58:00,137 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 17:58:00,138 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 17:58:00,138 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 17:58:00,138 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 17:58:00,139 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 17:58:00,140 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 17:58:00,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 17:58:00,141 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 17:58:00,141 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 17:58:00,141 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 17:58:00,466 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 17:58:00,482 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 17:58:00,484 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 17:58:00,485 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-07-09 17:58:00,489 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-07-09 17:58:00,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl [2021-07-09 17:58:00,490 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/min-max-dec.wvr.bpl' [2021-07-09 17:58:00,520 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 17:58:00,521 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-07-09 17:58:00,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 17:58:00,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 17:58:00,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 17:58:00,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,537 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,546 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 17:58:00,548 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 17:58:00,548 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 17:58:00,548 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 17:58:00,553 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,554 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,554 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,557 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,560 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/1) ... [2021-07-09 17:58:00,561 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 17:58:00,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 17:58:00,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 17:58:00,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 17:58:00,564 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (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 [2021-07-09 17:58:00,630 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-07-09 17:58:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-07-09 17:58:00,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-07-09 17:58:00,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-07-09 17:58:00,631 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-07-09 17:58:00,631 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-07-09 17:58:00,631 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-07-09 17:58:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 17:58:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 17:58:00,632 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-07-09 17:58:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-07-09 17:58:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-07-09 17:58:00,632 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-07-09 17:58:00,632 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-07-09 17:58:00,632 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-07-09 17:58:00,633 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 17:58:00,825 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 17:58:00,825 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-07-09 17:58:00,827 INFO L202 PluginConnector]: Adding new model min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 05:58:00 BoogieIcfgContainer [2021-07-09 17:58:00,827 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 17:58:00,829 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 17:58:00,829 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 17:58:00,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 17:58:00,831 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.07 05:58:00" (1/2) ... [2021-07-09 17:58:00,832 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e0f7e1f and model type min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 05:58:00, skipping insertion in model container [2021-07-09 17:58:00,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-dec.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 05:58:00" (2/2) ... [2021-07-09 17:58:00,833 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-dec.wvr.bpl [2021-07-09 17:58:00,854 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 17:58:00,854 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 17:58:00,855 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 17:58:00,855 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 17:58:00,956 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-07-09 17:58:00,973 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-07-09 17:58:00,989 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 17:58:00,990 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 17:58:00,990 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 17:58:00,990 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 17:58:00,990 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 17:58:00,990 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 17:58:00,990 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 17:58:00,990 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 17:58:00,999 INFO L110 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 45 places, 35 transitions, 102 flow [2021-07-09 17:58:01,067 INFO L132 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 710 states, 709 states have (on average 3.6473906911142455) internal successors, (2586), 709 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,071 INFO L276 IsEmpty]: Start isEmpty. Operand has 710 states, 709 states have (on average 3.6473906911142455) internal successors, (2586), 709 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-09 17:58:01,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:01,102 INFO L508 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] [2021-07-09 17:58:01,103 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:01,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:01,110 INFO L82 PathProgramCache]: Analyzing trace with hash -1581359210, now seen corresponding path program 1 times [2021-07-09 17:58:01,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:01,118 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781439381] [2021-07-09 17:58:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:01,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:01,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:01,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:01,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781439381] [2021-07-09 17:58:01,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781439381] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:01,358 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:01,358 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:58:01,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846899407] [2021-07-09 17:58:01,361 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:58:01,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:01,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:58:01,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:01,382 INFO L87 Difference]: Start difference. First operand has 710 states, 709 states have (on average 3.6473906911142455) internal successors, (2586), 709 states have internal predecessors, (2586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:01,590 INFO L93 Difference]: Finished difference Result 3229 states and 11601 transitions. [2021-07-09 17:58:01,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:58:01,593 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-07-09 17:58:01,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:01,638 INFO L225 Difference]: With dead ends: 3229 [2021-07-09 17:58:01,639 INFO L226 Difference]: Without dead ends: 2179 [2021-07-09 17:58:01,641 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 87.6ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:01,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2179 states. [2021-07-09 17:58:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2179 to 955. [2021-07-09 17:58:01,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 955 states, 954 states have (on average 3.611111111111111) internal successors, (3445), 954 states have internal predecessors, (3445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 3445 transitions. [2021-07-09 17:58:01,789 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 3445 transitions. Word has length 23 [2021-07-09 17:58:01,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:01,790 INFO L482 AbstractCegarLoop]: Abstraction has 955 states and 3445 transitions. [2021-07-09 17:58:01,790 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,791 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 3445 transitions. [2021-07-09 17:58:01,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-09 17:58:01,795 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:01,795 INFO L508 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] [2021-07-09 17:58:01,795 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 17:58:01,796 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:01,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:01,797 INFO L82 PathProgramCache]: Analyzing trace with hash 1499988984, now seen corresponding path program 2 times [2021-07-09 17:58:01,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:01,797 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326549021] [2021-07-09 17:58:01,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:01,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:01,836 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:01,836 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326549021] [2021-07-09 17:58:01,837 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326549021] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:01,837 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:01,837 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 17:58:01,837 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1048292626] [2021-07-09 17:58:01,839 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 17:58:01,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:01,841 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 17:58:01,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 17:58:01,842 INFO L87 Difference]: Start difference. First operand 955 states and 3445 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:01,874 INFO L93 Difference]: Finished difference Result 1206 states and 4309 transitions. [2021-07-09 17:58:01,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:58:01,875 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-07-09 17:58:01,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:01,881 INFO L225 Difference]: With dead ends: 1206 [2021-07-09 17:58:01,881 INFO L226 Difference]: Without dead ends: 859 [2021-07-09 17:58:01,882 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:01,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 859 states. [2021-07-09 17:58:01,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 859 to 859. [2021-07-09 17:58:01,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 859 states, 858 states have (on average 3.5442890442890445) internal successors, (3041), 858 states have internal predecessors, (3041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 859 states to 859 states and 3041 transitions. [2021-07-09 17:58:01,920 INFO L78 Accepts]: Start accepts. Automaton has 859 states and 3041 transitions. Word has length 23 [2021-07-09 17:58:01,921 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:01,921 INFO L482 AbstractCegarLoop]: Abstraction has 859 states and 3041 transitions. [2021-07-09 17:58:01,921 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:01,922 INFO L276 IsEmpty]: Start isEmpty. Operand 859 states and 3041 transitions. [2021-07-09 17:58:01,924 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-09 17:58:01,925 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:01,925 INFO L508 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] [2021-07-09 17:58:01,925 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 17:58:01,926 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:01,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:01,927 INFO L82 PathProgramCache]: Analyzing trace with hash 2060589364, now seen corresponding path program 3 times [2021-07-09 17:58:01,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:01,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675688759] [2021-07-09 17:58:01,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:01,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:02,012 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:02,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675688759] [2021-07-09 17:58:02,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675688759] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:02,013 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:02,013 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-07-09 17:58:02,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789337441] [2021-07-09 17:58:02,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:58:02,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:02,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:58:02,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:02,015 INFO L87 Difference]: Start difference. First operand 859 states and 3041 transitions. Second operand has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:02,128 INFO L93 Difference]: Finished difference Result 3289 states and 11673 transitions. [2021-07-09 17:58:02,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:58:02,131 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-07-09 17:58:02,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:02,149 INFO L225 Difference]: With dead ends: 3289 [2021-07-09 17:58:02,150 INFO L226 Difference]: Without dead ends: 2391 [2021-07-09 17:58:02,155 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:02,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2391 states. [2021-07-09 17:58:02,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2391 to 910. [2021-07-09 17:58:02,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 910 states, 909 states have (on average 3.553355335533553) internal successors, (3230), 909 states have internal predecessors, (3230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 910 states to 910 states and 3230 transitions. [2021-07-09 17:58:02,230 INFO L78 Accepts]: Start accepts. Automaton has 910 states and 3230 transitions. Word has length 23 [2021-07-09 17:58:02,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:02,231 INFO L482 AbstractCegarLoop]: Abstraction has 910 states and 3230 transitions. [2021-07-09 17:58:02,231 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 4.6) internal successors, (23), 5 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,231 INFO L276 IsEmpty]: Start isEmpty. Operand 910 states and 3230 transitions. [2021-07-09 17:58:02,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2021-07-09 17:58:02,234 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:02,234 INFO L508 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] [2021-07-09 17:58:02,234 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 17:58:02,234 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:02,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:02,235 INFO L82 PathProgramCache]: Analyzing trace with hash -375854000, now seen corresponding path program 4 times [2021-07-09 17:58:02,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:02,236 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [319049609] [2021-07-09 17:58:02,236 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:02,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:02,273 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:02,273 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [319049609] [2021-07-09 17:58:02,273 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [319049609] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:02,273 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:02,273 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 17:58:02,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172700867] [2021-07-09 17:58:02,274 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 17:58:02,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:02,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 17:58:02,274 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 17:58:02,275 INFO L87 Difference]: Start difference. First operand 910 states and 3230 transitions. Second operand has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:02,295 INFO L93 Difference]: Finished difference Result 1081 states and 3814 transitions. [2021-07-09 17:58:02,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:58:02,295 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2021-07-09 17:58:02,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:02,302 INFO L225 Difference]: With dead ends: 1081 [2021-07-09 17:58:02,302 INFO L226 Difference]: Without dead ends: 830 [2021-07-09 17:58:02,302 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:02,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 830 states. [2021-07-09 17:58:02,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 830 to 830. [2021-07-09 17:58:02,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 830 states, 829 states have (on average 3.4861278648974667) internal successors, (2890), 829 states have internal predecessors, (2890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 830 states to 830 states and 2890 transitions. [2021-07-09 17:58:02,328 INFO L78 Accepts]: Start accepts. Automaton has 830 states and 2890 transitions. Word has length 23 [2021-07-09 17:58:02,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:02,329 INFO L482 AbstractCegarLoop]: Abstraction has 830 states and 2890 transitions. [2021-07-09 17:58:02,329 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 5.75) internal successors, (23), 3 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,329 INFO L276 IsEmpty]: Start isEmpty. Operand 830 states and 2890 transitions. [2021-07-09 17:58:02,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-09 17:58:02,332 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:02,332 INFO L508 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] [2021-07-09 17:58:02,332 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 17:58:02,332 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:02,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:02,333 INFO L82 PathProgramCache]: Analyzing trace with hash 270626710, now seen corresponding path program 1 times [2021-07-09 17:58:02,333 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:02,334 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48223032] [2021-07-09 17:58:02,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:02,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:02,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:02,432 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:02,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48223032] [2021-07-09 17:58:02,433 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [48223032] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:02,433 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2089043104] [2021-07-09 17:58:02,433 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 [2021-07-09 17:58:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:02,482 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 4 conjunts are in the unsatisfiable core [2021-07-09 17:58:02,485 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:02,673 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:02,674 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2089043104] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:02,674 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:02,674 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-07-09 17:58:02,674 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1193363310] [2021-07-09 17:58:02,675 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 17:58:02,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:02,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 17:58:02,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-09 17:58:02,676 INFO L87 Difference]: Start difference. First operand 830 states and 2890 transitions. Second operand has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:02,754 INFO L93 Difference]: Finished difference Result 1914 states and 6600 transitions. [2021-07-09 17:58:02,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 17:58:02,755 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-07-09 17:58:02,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:02,766 INFO L225 Difference]: With dead ends: 1914 [2021-07-09 17:58:02,767 INFO L226 Difference]: Without dead ends: 1914 [2021-07-09 17:58:02,767 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 41.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:02,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1914 states. [2021-07-09 17:58:02,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1914 to 1087. [2021-07-09 17:58:02,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1087 states, 1086 states have (on average 3.603130755064457) internal successors, (3913), 1086 states have internal predecessors, (3913), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1087 states to 1087 states and 3913 transitions. [2021-07-09 17:58:02,817 INFO L78 Accepts]: Start accepts. Automaton has 1087 states and 3913 transitions. Word has length 25 [2021-07-09 17:58:02,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:02,818 INFO L482 AbstractCegarLoop]: Abstraction has 1087 states and 3913 transitions. [2021-07-09 17:58:02,818 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 5.666666666666667) internal successors, (34), 5 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:02,818 INFO L276 IsEmpty]: Start isEmpty. Operand 1087 states and 3913 transitions. [2021-07-09 17:58:02,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-09 17:58:02,823 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:02,824 INFO L508 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] [2021-07-09 17:58:03,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:03,037 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:03,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:03,037 INFO L82 PathProgramCache]: Analyzing trace with hash -524449864, now seen corresponding path program 1 times [2021-07-09 17:58:03,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:03,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783489800] [2021-07-09 17:58:03,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:03,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:03,080 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:03,080 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783489800] [2021-07-09 17:58:03,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783489800] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:03,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:03,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-07-09 17:58:03,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964212568] [2021-07-09 17:58:03,081 INFO L462 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-07-09 17:58:03,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:03,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-07-09 17:58:03,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-07-09 17:58:03,082 INFO L87 Difference]: Start difference. First operand 1087 states and 3913 transitions. Second operand has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:03,129 INFO L93 Difference]: Finished difference Result 1486 states and 5095 transitions. [2021-07-09 17:58:03,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:58:03,130 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-07-09 17:58:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:03,140 INFO L225 Difference]: With dead ends: 1486 [2021-07-09 17:58:03,140 INFO L226 Difference]: Without dead ends: 1456 [2021-07-09 17:58:03,141 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.0ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1456 states. [2021-07-09 17:58:03,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1456 to 1266. [2021-07-09 17:58:03,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 3.5177865612648223) internal successors, (4450), 1265 states have internal predecessors, (4450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 4450 transitions. [2021-07-09 17:58:03,181 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 4450 transitions. Word has length 25 [2021-07-09 17:58:03,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:03,181 INFO L482 AbstractCegarLoop]: Abstraction has 1266 states and 4450 transitions. [2021-07-09 17:58:03,181 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 6.25) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,182 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 4450 transitions. [2021-07-09 17:58:03,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-09 17:58:03,185 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:03,185 INFO L508 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] [2021-07-09 17:58:03,185 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 17:58:03,186 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:03,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:03,186 INFO L82 PathProgramCache]: Analyzing trace with hash 1724816056, now seen corresponding path program 1 times [2021-07-09 17:58:03,186 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:03,186 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [200945266] [2021-07-09 17:58:03,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:03,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:03,249 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:03,249 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [200945266] [2021-07-09 17:58:03,249 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [200945266] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:03,249 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:03,249 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 17:58:03,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105387744] [2021-07-09 17:58:03,250 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:58:03,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:03,250 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:58:03,250 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:03,251 INFO L87 Difference]: Start difference. First operand 1266 states and 4450 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:03,325 INFO L93 Difference]: Finished difference Result 1470 states and 4972 transitions. [2021-07-09 17:58:03,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 17:58:03,325 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-07-09 17:58:03,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:03,334 INFO L225 Difference]: With dead ends: 1470 [2021-07-09 17:58:03,335 INFO L226 Difference]: Without dead ends: 1307 [2021-07-09 17:58:03,336 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 24.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-09 17:58:03,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1307 states. [2021-07-09 17:58:03,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1307 to 1247. [2021-07-09 17:58:03,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1247 states, 1246 states have (on average 3.4935794542536116) internal successors, (4353), 1246 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1247 states to 1247 states and 4353 transitions. [2021-07-09 17:58:03,372 INFO L78 Accepts]: Start accepts. Automaton has 1247 states and 4353 transitions. Word has length 25 [2021-07-09 17:58:03,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:03,372 INFO L482 AbstractCegarLoop]: Abstraction has 1247 states and 4353 transitions. [2021-07-09 17:58:03,372 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,372 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states and 4353 transitions. [2021-07-09 17:58:03,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-09 17:58:03,377 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:03,377 INFO L508 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] [2021-07-09 17:58:03,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 17:58:03,378 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:03,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:03,378 INFO L82 PathProgramCache]: Analyzing trace with hash -5183016, now seen corresponding path program 2 times [2021-07-09 17:58:03,378 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:03,378 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759547499] [2021-07-09 17:58:03,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:03,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:03,433 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:03,434 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:03,434 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759547499] [2021-07-09 17:58:03,434 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759547499] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 17:58:03,434 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 17:58:03,434 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-07-09 17:58:03,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1993775699] [2021-07-09 17:58:03,435 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-07-09 17:58:03,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:03,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-07-09 17:58:03,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:03,435 INFO L87 Difference]: Start difference. First operand 1247 states and 4353 transitions. Second operand has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:03,474 INFO L93 Difference]: Finished difference Result 1418 states and 4897 transitions. [2021-07-09 17:58:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-07-09 17:58:03,475 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2021-07-09 17:58:03,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:03,483 INFO L225 Difference]: With dead ends: 1418 [2021-07-09 17:58:03,483 INFO L226 Difference]: Without dead ends: 1418 [2021-07-09 17:58:03,484 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 11.2ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-07-09 17:58:03,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1418 states. [2021-07-09 17:58:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1418 to 1232. [2021-07-09 17:58:03,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1232 states, 1231 states have (on average 3.505280259951259) internal successors, (4315), 1231 states have internal predecessors, (4315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1232 states to 1232 states and 4315 transitions. [2021-07-09 17:58:03,521 INFO L78 Accepts]: Start accepts. Automaton has 1232 states and 4315 transitions. Word has length 25 [2021-07-09 17:58:03,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:03,521 INFO L482 AbstractCegarLoop]: Abstraction has 1232 states and 4315 transitions. [2021-07-09 17:58:03,521 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 5.0) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,521 INFO L276 IsEmpty]: Start isEmpty. Operand 1232 states and 4315 transitions. [2021-07-09 17:58:03,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-07-09 17:58:03,526 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:03,526 INFO L508 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] [2021-07-09 17:58:03,526 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-07-09 17:58:03,526 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:03,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:03,527 INFO L82 PathProgramCache]: Analyzing trace with hash 1526479382, now seen corresponding path program 2 times [2021-07-09 17:58:03,527 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:03,529 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390119211] [2021-07-09 17:58:03,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:03,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:03,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:03,597 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:03,597 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390119211] [2021-07-09 17:58:03,598 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390119211] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:03,598 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768208286] [2021-07-09 17:58:03,598 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:03,644 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:58:03,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:03,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-09 17:58:03,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:03,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:03,726 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768208286] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:03,726 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:03,726 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 5 [2021-07-09 17:58:03,726 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091442174] [2021-07-09 17:58:03,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 17:58:03,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:03,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 17:58:03,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-07-09 17:58:03,731 INFO L87 Difference]: Start difference. First operand 1232 states and 4315 transitions. Second operand has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 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) [2021-07-09 17:58:03,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:03,788 INFO L93 Difference]: Finished difference Result 1482 states and 5191 transitions. [2021-07-09 17:58:03,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-07-09 17:58:03,788 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 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 25 [2021-07-09 17:58:03,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:03,805 INFO L225 Difference]: With dead ends: 1482 [2021-07-09 17:58:03,805 INFO L226 Difference]: Without dead ends: 1380 [2021-07-09 17:58:03,805 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 42.6ms TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:03,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1380 states. [2021-07-09 17:58:03,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1380 to 1105. [2021-07-09 17:58:03,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1105 states, 1104 states have (on average 3.5543478260869565) internal successors, (3924), 1104 states have internal predecessors, (3924), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:03,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1105 states to 1105 states and 3924 transitions. [2021-07-09 17:58:03,839 INFO L78 Accepts]: Start accepts. Automaton has 1105 states and 3924 transitions. Word has length 25 [2021-07-09 17:58:03,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:03,840 INFO L482 AbstractCegarLoop]: Abstraction has 1105 states and 3924 transitions. [2021-07-09 17:58:03,840 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 5 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) [2021-07-09 17:58:03,840 INFO L276 IsEmpty]: Start isEmpty. Operand 1105 states and 3924 transitions. [2021-07-09 17:58:03,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2021-07-09 17:58:03,843 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:03,843 INFO L508 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] [2021-07-09 17:58:04,067 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:04,068 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:04,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:04,068 INFO L82 PathProgramCache]: Analyzing trace with hash 1117558712, now seen corresponding path program 1 times [2021-07-09 17:58:04,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:04,069 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082205601] [2021-07-09 17:58:04,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:04,131 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:04,131 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:04,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082205601] [2021-07-09 17:58:04,131 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082205601] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:04,131 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898187679] [2021-07-09 17:58:04,132 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 [2021-07-09 17:58:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:04,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjunts are in the unsatisfiable core [2021-07-09 17:58:04,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:04,231 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898187679] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:04,231 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:04,231 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 3] total 6 [2021-07-09 17:58:04,231 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063128507] [2021-07-09 17:58:04,232 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 17:58:04,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:04,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 17:58:04,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:04,233 INFO L87 Difference]: Start difference. First operand 1105 states and 3924 transitions. Second operand has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 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) [2021-07-09 17:58:04,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:04,314 INFO L93 Difference]: Finished difference Result 1282 states and 4578 transitions. [2021-07-09 17:58:04,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-07-09 17:58:04,315 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 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 27 [2021-07-09 17:58:04,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:04,320 INFO L225 Difference]: With dead ends: 1282 [2021-07-09 17:58:04,320 INFO L226 Difference]: Without dead ends: 1282 [2021-07-09 17:58:04,320 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 50.5ms TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:04,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1282 states. [2021-07-09 17:58:04,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1282 to 1044. [2021-07-09 17:58:04,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1044 states, 1043 states have (on average 3.5618408437200384) internal successors, (3715), 1043 states have internal predecessors, (3715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:04,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1044 states to 1044 states and 3715 transitions. [2021-07-09 17:58:04,353 INFO L78 Accepts]: Start accepts. Automaton has 1044 states and 3715 transitions. Word has length 27 [2021-07-09 17:58:04,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:04,353 INFO L482 AbstractCegarLoop]: Abstraction has 1044 states and 3715 transitions. [2021-07-09 17:58:04,353 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.714285714285714) internal successors, (40), 6 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) [2021-07-09 17:58:04,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1044 states and 3715 transitions. [2021-07-09 17:58:04,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-07-09 17:58:04,357 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:04,358 INFO L508 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] [2021-07-09 17:58:04,580 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-07-09 17:58:04,581 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:04,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:04,581 INFO L82 PathProgramCache]: Analyzing trace with hash 1224692314, now seen corresponding path program 1 times [2021-07-09 17:58:04,581 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:04,581 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38964671] [2021-07-09 17:58:04,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:04,776 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:04,777 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:04,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38964671] [2021-07-09 17:58:04,777 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38964671] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:04,777 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [968407655] [2021-07-09 17:58:04,777 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 [2021-07-09 17:58:04,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:04,827 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-09 17:58:04,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:04,933 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-07-09 17:58:04,936 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:04,940 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:04,941 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:04,941 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-07-09 17:58:04,999 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:58:05,002 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:05,003 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:05,016 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:05,017 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-09 17:58:05,039 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:05,039 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [968407655] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:05,039 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:05,040 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 10 [2021-07-09 17:58:05,040 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376449529] [2021-07-09 17:58:05,040 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 17:58:05,040 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:05,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 17:58:05,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:58:05,041 INFO L87 Difference]: Start difference. First operand 1044 states and 3715 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 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) [2021-07-09 17:58:05,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:05,293 INFO L93 Difference]: Finished difference Result 2477 states and 8903 transitions. [2021-07-09 17:58:05,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 17:58:05,297 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 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 29 [2021-07-09 17:58:05,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:05,306 INFO L225 Difference]: With dead ends: 2477 [2021-07-09 17:58:05,307 INFO L226 Difference]: Without dead ends: 1549 [2021-07-09 17:58:05,307 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 24 SyntacticMatches, 3 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 226.4ms TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2021-07-09 17:58:05,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1549 states. [2021-07-09 17:58:05,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1549 to 1288. [2021-07-09 17:58:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1288 states, 1287 states have (on average 3.5283605283605284) internal successors, (4541), 1287 states have internal predecessors, (4541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:05,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1288 states to 1288 states and 4541 transitions. [2021-07-09 17:58:05,345 INFO L78 Accepts]: Start accepts. Automaton has 1288 states and 4541 transitions. Word has length 29 [2021-07-09 17:58:05,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:05,345 INFO L482 AbstractCegarLoop]: Abstraction has 1288 states and 4541 transitions. [2021-07-09 17:58:05,346 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 10 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) [2021-07-09 17:58:05,346 INFO L276 IsEmpty]: Start isEmpty. Operand 1288 states and 4541 transitions. [2021-07-09 17:58:05,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-07-09 17:58:05,350 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:05,350 INFO L508 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] [2021-07-09 17:58:05,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:05,573 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:05,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:05,573 INFO L82 PathProgramCache]: Analyzing trace with hash 1610896974, now seen corresponding path program 2 times [2021-07-09 17:58:05,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:05,574 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659419834] [2021-07-09 17:58:05,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:05,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:05,725 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:05,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659419834] [2021-07-09 17:58:05,725 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1659419834] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:05,725 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322718254] [2021-07-09 17:58:05,726 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:05,765 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:58:05,765 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:05,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2021-07-09 17:58:05,769 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:05,862 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 17:58:05,864 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:05,866 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:05,866 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:05,866 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-09 17:58:05,888 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:05,889 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322718254] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:05,889 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:05,889 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-07-09 17:58:05,891 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740803230] [2021-07-09 17:58:05,892 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 17:58:05,892 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:05,893 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 17:58:05,893 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:58:05,893 INFO L87 Difference]: Start difference. First operand 1288 states and 4541 transitions. Second operand has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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) [2021-07-09 17:58:06,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:06,212 INFO L93 Difference]: Finished difference Result 3395 states and 12093 transitions. [2021-07-09 17:58:06,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-07-09 17:58:06,212 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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 29 [2021-07-09 17:58:06,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:06,217 INFO L225 Difference]: With dead ends: 3395 [2021-07-09 17:58:06,217 INFO L226 Difference]: Without dead ends: 1756 [2021-07-09 17:58:06,218 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 262.2ms TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2021-07-09 17:58:06,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1756 states. [2021-07-09 17:58:06,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1756 to 1019. [2021-07-09 17:58:06,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1019 states, 1018 states have (on average 3.486247544204322) internal successors, (3549), 1018 states have internal predecessors, (3549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:06,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3549 transitions. [2021-07-09 17:58:06,250 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3549 transitions. Word has length 29 [2021-07-09 17:58:06,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:06,250 INFO L482 AbstractCegarLoop]: Abstraction has 1019 states and 3549 transitions. [2021-07-09 17:58:06,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 3.8181818181818183) internal successors, (42), 10 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) [2021-07-09 17:58:06,251 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3549 transitions. [2021-07-09 17:58:06,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-07-09 17:58:06,254 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:06,254 INFO L508 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] [2021-07-09 17:58:06,478 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-07-09 17:58:06,478 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:06,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:06,479 INFO L82 PathProgramCache]: Analyzing trace with hash -22453128, now seen corresponding path program 3 times [2021-07-09 17:58:06,479 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:06,479 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [562687983] [2021-07-09 17:58:06,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:06,570 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:06,570 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:06,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [562687983] [2021-07-09 17:58:06,571 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [562687983] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:06,571 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1159798718] [2021-07-09 17:58:06,571 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:06,618 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-07-09 17:58:06,618 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:06,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 15 conjunts are in the unsatisfiable core [2021-07-09 17:58:06,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:06,654 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 7 [2021-07-09 17:58:06,656 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:06,659 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:06,660 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:06,660 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:17, output treesize:7 [2021-07-09 17:58:06,720 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-07-09 17:58:06,722 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:06,723 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:06,724 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:06,724 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:11, output treesize:3 [2021-07-09 17:58:06,744 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:06,744 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1159798718] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:06,744 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:06,744 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 11 [2021-07-09 17:58:06,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126999702] [2021-07-09 17:58:06,745 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-07-09 17:58:06,745 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:06,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-07-09 17:58:06,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2021-07-09 17:58:06,746 INFO L87 Difference]: Start difference. First operand 1019 states and 3549 transitions. Second operand has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:06,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:06,954 INFO L93 Difference]: Finished difference Result 2225 states and 7823 transitions. [2021-07-09 17:58:06,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-07-09 17:58:06,955 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have 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 [2021-07-09 17:58:06,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:06,960 INFO L225 Difference]: With dead ends: 2225 [2021-07-09 17:58:06,960 INFO L226 Difference]: Without dead ends: 1056 [2021-07-09 17:58:06,960 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 166.6ms TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2021-07-09 17:58:06,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2021-07-09 17:58:06,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 730. [2021-07-09 17:58:06,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 730 states, 729 states have (on average 3.486968449931413) internal successors, (2542), 729 states have internal predecessors, (2542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:06,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 730 states to 730 states and 2542 transitions. [2021-07-09 17:58:06,995 INFO L78 Accepts]: Start accepts. Automaton has 730 states and 2542 transitions. Word has length 29 [2021-07-09 17:58:06,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:06,995 INFO L482 AbstractCegarLoop]: Abstraction has 730 states and 2542 transitions. [2021-07-09 17:58:06,996 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 3.9166666666666665) internal successors, (47), 11 states have internal predecessors, (47), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:06,996 INFO L276 IsEmpty]: Start isEmpty. Operand 730 states and 2542 transitions. [2021-07-09 17:58:06,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2021-07-09 17:58:06,998 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:06,998 INFO L508 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] [2021-07-09 17:58:07,212 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:07,213 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:07,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:07,213 INFO L82 PathProgramCache]: Analyzing trace with hash 836346912, now seen corresponding path program 4 times [2021-07-09 17:58:07,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:07,213 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561627454] [2021-07-09 17:58:07,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:07,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:07,367 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:07,368 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:07,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561627454] [2021-07-09 17:58:07,368 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561627454] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:07,368 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [429469652] [2021-07-09 17:58:07,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:07,415 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:58:07,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:07,416 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 14 conjunts are in the unsatisfiable core [2021-07-09 17:58:07,417 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:07,488 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-07-09 17:58:07,491 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:07,495 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:07,496 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:07,496 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-07-09 17:58:07,521 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:58:07,523 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:07,524 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:07,525 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:07,525 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-09 17:58:07,550 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:07,550 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [429469652] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:07,550 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:07,551 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 9 [2021-07-09 17:58:07,551 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [801266469] [2021-07-09 17:58:07,551 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 17:58:07,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:07,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 17:58:07,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-07-09 17:58:07,552 INFO L87 Difference]: Start difference. First operand 730 states and 2542 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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) [2021-07-09 17:58:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:07,714 INFO L93 Difference]: Finished difference Result 1734 states and 6084 transitions. [2021-07-09 17:58:07,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 17:58:07,715 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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 [2021-07-09 17:58:07,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:07,718 INFO L225 Difference]: With dead ends: 1734 [2021-07-09 17:58:07,718 INFO L226 Difference]: Without dead ends: 812 [2021-07-09 17:58:07,719 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 25 SyntacticMatches, 3 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 163.9ms TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-07-09 17:58:07,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 812 states. [2021-07-09 17:58:07,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 812 to 764. [2021-07-09 17:58:07,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 764 states, 763 states have (on average 3.4416775884665793) internal successors, (2626), 763 states have internal predecessors, (2626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:07,736 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 764 states to 764 states and 2626 transitions. [2021-07-09 17:58:07,737 INFO L78 Accepts]: Start accepts. Automaton has 764 states and 2626 transitions. Word has length 29 [2021-07-09 17:58:07,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:07,737 INFO L482 AbstractCegarLoop]: Abstraction has 764 states and 2626 transitions. [2021-07-09 17:58:07,737 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 9 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) [2021-07-09 17:58:07,737 INFO L276 IsEmpty]: Start isEmpty. Operand 764 states and 2626 transitions. [2021-07-09 17:58:07,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-09 17:58:07,739 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:07,739 INFO L508 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] [2021-07-09 17:58:07,952 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2021-07-09 17:58:07,953 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:07,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:07,953 INFO L82 PathProgramCache]: Analyzing trace with hash 862166658, now seen corresponding path program 5 times [2021-07-09 17:58:07,953 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:07,953 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1833186849] [2021-07-09 17:58:07,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:07,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:07,987 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:07,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:07,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1833186849] [2021-07-09 17:58:07,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1833186849] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:07,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [4205935] [2021-07-09 17:58:07,988 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:08,045 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 4 check-sat command(s) [2021-07-09 17:58:08,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:08,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-09 17:58:08,047 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:08,107 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:08,107 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [4205935] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:08,108 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:08,108 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-09 17:58:08,108 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325161585] [2021-07-09 17:58:08,108 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 17:58:08,108 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:08,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 17:58:08,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:08,109 INFO L87 Difference]: Start difference. First operand 764 states and 2626 transitions. Second operand has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:08,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:08,193 INFO L93 Difference]: Finished difference Result 2158 states and 7467 transitions. [2021-07-09 17:58:08,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:58:08,201 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2021-07-09 17:58:08,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:08,207 INFO L225 Difference]: With dead ends: 2158 [2021-07-09 17:58:08,208 INFO L226 Difference]: Without dead ends: 2158 [2021-07-09 17:58:08,208 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 45.6ms TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:58:08,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2158 states. [2021-07-09 17:58:08,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2158 to 1150. [2021-07-09 17:58:08,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1150 states, 1149 states have (on average 3.6257615317667535) internal successors, (4166), 1149 states have internal predecessors, (4166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:08,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1150 states to 1150 states and 4166 transitions. [2021-07-09 17:58:08,239 INFO L78 Accepts]: Start accepts. Automaton has 1150 states and 4166 transitions. Word has length 31 [2021-07-09 17:58:08,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:08,240 INFO L482 AbstractCegarLoop]: Abstraction has 1150 states and 4166 transitions. [2021-07-09 17:58:08,240 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.428571428571429) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:08,240 INFO L276 IsEmpty]: Start isEmpty. Operand 1150 states and 4166 transitions. [2021-07-09 17:58:08,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-07-09 17:58:08,244 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:08,244 INFO L508 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] [2021-07-09 17:58:08,460 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-07-09 17:58:08,461 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:08,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:08,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1214611312, now seen corresponding path program 6 times [2021-07-09 17:58:08,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:08,461 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [198404037] [2021-07-09 17:58:08,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:08,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:08,487 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:08,488 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:08,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [198404037] [2021-07-09 17:58:08,488 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [198404037] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:08,488 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1985320352] [2021-07-09 17:58:08,488 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:08,531 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 4 check-sat command(s) [2021-07-09 17:58:08,531 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:08,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 6 conjunts are in the unsatisfiable core [2021-07-09 17:58:08,532 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:08,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:08,606 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1985320352] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:08,606 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:08,606 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-07-09 17:58:08,606 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [897147574] [2021-07-09 17:58:08,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-07-09 17:58:08,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:08,607 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-07-09 17:58:08,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2021-07-09 17:58:08,607 INFO L87 Difference]: Start difference. First operand 1150 states and 4166 transitions. Second operand has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:09,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:09,138 INFO L93 Difference]: Finished difference Result 3097 states and 11097 transitions. [2021-07-09 17:58:09,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-07-09 17:58:09,139 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have 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 [2021-07-09 17:58:09,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:09,151 INFO L225 Difference]: With dead ends: 3097 [2021-07-09 17:58:09,151 INFO L226 Difference]: Without dead ends: 3092 [2021-07-09 17:58:09,152 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 349 ImplicationChecksByTransitivity, 314.2ms TimeCoverageRelationStatistics Valid=308, Invalid=952, Unknown=0, NotChecked=0, Total=1260 [2021-07-09 17:58:09,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3092 states. [2021-07-09 17:58:09,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3092 to 1871. [2021-07-09 17:58:09,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1871 states, 1870 states have (on average 3.8058823529411763) internal successors, (7117), 1870 states have internal predecessors, (7117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:09,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1871 states to 1871 states and 7117 transitions. [2021-07-09 17:58:09,206 INFO L78 Accepts]: Start accepts. Automaton has 1871 states and 7117 transitions. Word has length 31 [2021-07-09 17:58:09,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:09,206 INFO L482 AbstractCegarLoop]: Abstraction has 1871 states and 7117 transitions. [2021-07-09 17:58:09,207 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 5.2) internal successors, (52), 9 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:09,207 INFO L276 IsEmpty]: Start isEmpty. Operand 1871 states and 7117 transitions. [2021-07-09 17:58:09,211 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-07-09 17:58:09,211 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:09,211 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-07-09 17:58:09,424 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-07-09 17:58:09,425 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:09,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:09,425 INFO L82 PathProgramCache]: Analyzing trace with hash -373015140, now seen corresponding path program 7 times [2021-07-09 17:58:09,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:09,425 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [919897707] [2021-07-09 17:58:09,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:09,506 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:09,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:09,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [919897707] [2021-07-09 17:58:09,507 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [919897707] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:09,507 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [417503984] [2021-07-09 17:58:09,507 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:09,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:09,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-09 17:58:09,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:09,693 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:09,694 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [417503984] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:09,694 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:09,694 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2021-07-09 17:58:09,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66513885] [2021-07-09 17:58:09,695 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 17:58:09,695 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:09,695 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 17:58:09,695 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:09,696 INFO L87 Difference]: Start difference. First operand 1871 states and 7117 transitions. Second operand has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 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) [2021-07-09 17:58:09,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:09,813 INFO L93 Difference]: Finished difference Result 3521 states and 13072 transitions. [2021-07-09 17:58:09,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:58:09,814 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 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 [2021-07-09 17:58:09,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:09,855 INFO L225 Difference]: With dead ends: 3521 [2021-07-09 17:58:09,855 INFO L226 Difference]: Without dead ends: 3502 [2021-07-09 17:58:09,865 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 40.0ms TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-07-09 17:58:09,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3502 states. [2021-07-09 17:58:09,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3502 to 2458. [2021-07-09 17:58:09,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2458 states, 2457 states have (on average 3.938949938949939) internal successors, (9678), 2457 states have internal predecessors, (9678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:10,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2458 states to 2458 states and 9678 transitions. [2021-07-09 17:58:10,015 INFO L78 Accepts]: Start accepts. Automaton has 2458 states and 9678 transitions. Word has length 33 [2021-07-09 17:58:10,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:10,015 INFO L482 AbstractCegarLoop]: Abstraction has 2458 states and 9678 transitions. [2021-07-09 17:58:10,015 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 5.857142857142857) internal successors, (41), 6 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) [2021-07-09 17:58:10,015 INFO L276 IsEmpty]: Start isEmpty. Operand 2458 states and 9678 transitions. [2021-07-09 17:58:10,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2021-07-09 17:58:10,022 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:10,022 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 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] [2021-07-09 17:58:10,252 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-07-09 17:58:10,253 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:10,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:10,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1066357152, now seen corresponding path program 8 times [2021-07-09 17:58:10,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:10,253 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191431395] [2021-07-09 17:58:10,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:10,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:10,339 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:10,340 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:10,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191431395] [2021-07-09 17:58:10,340 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191431395] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:10,340 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1515052917] [2021-07-09 17:58:10,340 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:10,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:58:10,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:10,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 5 conjunts are in the unsatisfiable core [2021-07-09 17:58:10,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:10,482 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 17:58:10,482 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1515052917] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:10,482 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:10,482 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-07-09 17:58:10,483 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796452531] [2021-07-09 17:58:10,483 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 17:58:10,483 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:10,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 17:58:10,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-07-09 17:58:10,483 INFO L87 Difference]: Start difference. First operand 2458 states and 9678 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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) [2021-07-09 17:58:10,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:10,567 INFO L93 Difference]: Finished difference Result 3425 states and 12799 transitions. [2021-07-09 17:58:10,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 17:58:10,567 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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 [2021-07-09 17:58:10,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:10,593 INFO L225 Difference]: With dead ends: 3425 [2021-07-09 17:58:10,593 INFO L226 Difference]: Without dead ends: 3425 [2021-07-09 17:58:10,593 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 32 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 67.2ms TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:10,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3425 states. [2021-07-09 17:58:10,722 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3425 to 2506. [2021-07-09 17:58:10,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2506 states, 2505 states have (on average 3.9405189620758483) internal successors, (9871), 2505 states have internal predecessors, (9871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:10,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2506 states to 2506 states and 9871 transitions. [2021-07-09 17:58:10,759 INFO L78 Accepts]: Start accepts. Automaton has 2506 states and 9871 transitions. Word has length 33 [2021-07-09 17:58:10,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:10,759 INFO L482 AbstractCegarLoop]: Abstraction has 2506 states and 9871 transitions. [2021-07-09 17:58:10,760 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 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) [2021-07-09 17:58:10,760 INFO L276 IsEmpty]: Start isEmpty. Operand 2506 states and 9871 transitions. [2021-07-09 17:58:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-09 17:58:10,784 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:10,785 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-07-09 17:58:11,004 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-07-09 17:58:11,005 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:11,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:11,005 INFO L82 PathProgramCache]: Analyzing trace with hash -279862338, now seen corresponding path program 9 times [2021-07-09 17:58:11,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:11,006 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110290884] [2021-07-09 17:58:11,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:11,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 17:58:11,264 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:11,264 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110290884] [2021-07-09 17:58:11,265 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2110290884] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:11,265 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1497402844] [2021-07-09 17:58:11,265 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 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 [2021-07-09 17:58:11,348 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 17:58:11,348 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:11,349 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 17 conjunts are in the unsatisfiable core [2021-07-09 17:58:11,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:11,489 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-07-09 17:58:11,490 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:11,509 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:11,510 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:11,510 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-07-09 17:58:11,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:58:11,602 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:11,605 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:11,605 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:11,606 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-09 17:58:11,655 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:11,656 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1497402844] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:11,656 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:11,656 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 15 [2021-07-09 17:58:11,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549087685] [2021-07-09 17:58:11,657 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-09 17:58:11,657 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:11,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-09 17:58:11,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=201, Unknown=0, NotChecked=0, Total=240 [2021-07-09 17:58:11,660 INFO L87 Difference]: Start difference. First operand 2506 states and 9871 transitions. Second operand has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:12,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:12,872 INFO L93 Difference]: Finished difference Result 7202 states and 27392 transitions. [2021-07-09 17:58:12,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-07-09 17:58:12,872 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2021-07-09 17:58:12,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:12,885 INFO L225 Difference]: With dead ends: 7202 [2021-07-09 17:58:12,886 INFO L226 Difference]: Without dead ends: 3817 [2021-07-09 17:58:12,886 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 633.5ms TimeCoverageRelationStatistics Valid=186, Invalid=870, Unknown=0, NotChecked=0, Total=1056 [2021-07-09 17:58:12,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3817 states. [2021-07-09 17:58:13,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3817 to 2612. [2021-07-09 17:58:13,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2612 states, 2611 states have (on average 3.8885484488701647) internal successors, (10153), 2611 states have internal predecessors, (10153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:13,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2612 states to 2612 states and 10153 transitions. [2021-07-09 17:58:13,049 INFO L78 Accepts]: Start accepts. Automaton has 2612 states and 10153 transitions. Word has length 35 [2021-07-09 17:58:13,049 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:13,049 INFO L482 AbstractCegarLoop]: Abstraction has 2612 states and 10153 transitions. [2021-07-09 17:58:13,049 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 3.75) internal successors, (60), 15 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:13,049 INFO L276 IsEmpty]: Start isEmpty. Operand 2612 states and 10153 transitions. [2021-07-09 17:58:13,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-07-09 17:58:13,056 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:13,056 INFO L508 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 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] [2021-07-09 17:58:13,276 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:13,277 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:13,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:13,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1543863878, now seen corresponding path program 10 times [2021-07-09 17:58:13,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:13,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2090914500] [2021-07-09 17:58:13,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:13,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:13,539 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 17:58:13,539 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:13,539 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2090914500] [2021-07-09 17:58:13,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2090914500] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:13,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [859765283] [2021-07-09 17:58:13,540 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 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 [2021-07-09 17:58:13,679 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:58:13,680 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:13,680 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-09 17:58:13,685 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:13,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:13,813 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 18 [2021-07-09 17:58:13,815 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,820 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:13,821 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,821 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:26, output treesize:12 [2021-07-09 17:58:13,863 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-07-09 17:58:13,865 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,869 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:13,870 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,870 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:19, output treesize:11 [2021-07-09 17:58:13,976 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2021-07-09 17:58:13,978 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,979 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:13,980 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:13,980 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:13, output treesize:5 [2021-07-09 17:58:14,008 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 17:58:14,008 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [859765283] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:14,008 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:14,008 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 14 [2021-07-09 17:58:14,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006213703] [2021-07-09 17:58:14,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-07-09 17:58:14,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:14,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-07-09 17:58:14,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=173, Unknown=0, NotChecked=0, Total=210 [2021-07-09 17:58:14,010 INFO L87 Difference]: Start difference. First operand 2612 states and 10153 transitions. Second operand has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 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) [2021-07-09 17:58:14,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:14,666 INFO L93 Difference]: Finished difference Result 5807 states and 22379 transitions. [2021-07-09 17:58:14,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-07-09 17:58:14,666 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 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 35 [2021-07-09 17:58:14,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:14,676 INFO L225 Difference]: With dead ends: 5807 [2021-07-09 17:58:14,677 INFO L226 Difference]: Without dead ends: 2780 [2021-07-09 17:58:14,677 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 453.9ms TimeCoverageRelationStatistics Valid=129, Invalid=627, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:58:14,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2780 states. [2021-07-09 17:58:14,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2780 to 2646. [2021-07-09 17:58:14,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2646 states, 2645 states have (on average 3.86351606805293) internal successors, (10219), 2645 states have internal predecessors, (10219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:14,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2646 states to 2646 states and 10219 transitions. [2021-07-09 17:58:14,788 INFO L78 Accepts]: Start accepts. Automaton has 2646 states and 10219 transitions. Word has length 35 [2021-07-09 17:58:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:14,788 INFO L482 AbstractCegarLoop]: Abstraction has 2646 states and 10219 transitions. [2021-07-09 17:58:14,788 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 3.533333333333333) internal successors, (53), 14 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) [2021-07-09 17:58:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 2646 states and 10219 transitions. [2021-07-09 17:58:14,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-07-09 17:58:14,816 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:14,816 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2021-07-09 17:58:15,037 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2021-07-09 17:58:15,037 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:15,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:15,038 INFO L82 PathProgramCache]: Analyzing trace with hash -833611472, now seen corresponding path program 11 times [2021-07-09 17:58:15,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:15,038 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21570542] [2021-07-09 17:58:15,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:15,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:15,096 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:15,096 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:15,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21570542] [2021-07-09 17:58:15,096 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21570542] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:15,096 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033782893] [2021-07-09 17:58:15,096 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 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 [2021-07-09 17:58:15,155 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-07-09 17:58:15,155 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:15,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-09 17:58:15,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:15,224 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:58:15,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033782893] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:15,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:15,225 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-07-09 17:58:15,225 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1028918056] [2021-07-09 17:58:15,226 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 17:58:15,226 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:15,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 17:58:15,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-07-09 17:58:15,227 INFO L87 Difference]: Start difference. First operand 2646 states and 10219 transitions. Second operand has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:15,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:15,379 INFO L93 Difference]: Finished difference Result 6355 states and 23872 transitions. [2021-07-09 17:58:15,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 17:58:15,380 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-07-09 17:58:15,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:15,395 INFO L225 Difference]: With dead ends: 6355 [2021-07-09 17:58:15,395 INFO L226 Difference]: Without dead ends: 6330 [2021-07-09 17:58:15,395 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 40.4ms TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-07-09 17:58:15,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6330 states. [2021-07-09 17:58:15,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6330 to 3550. [2021-07-09 17:58:15,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3550 states, 3549 states have (on average 4.066215835446605) internal successors, (14431), 3549 states have internal predecessors, (14431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:15,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3550 states to 3550 states and 14431 transitions. [2021-07-09 17:58:15,499 INFO L78 Accepts]: Start accepts. Automaton has 3550 states and 14431 transitions. Word has length 37 [2021-07-09 17:58:15,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:15,500 INFO L482 AbstractCegarLoop]: Abstraction has 3550 states and 14431 transitions. [2021-07-09 17:58:15,500 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 6.285714285714286) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:15,500 INFO L276 IsEmpty]: Start isEmpty. Operand 3550 states and 14431 transitions. [2021-07-09 17:58:15,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2021-07-09 17:58:15,510 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:15,510 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 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] [2021-07-09 17:58:15,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:15,719 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:15,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:15,719 INFO L82 PathProgramCache]: Analyzing trace with hash -1361280888, now seen corresponding path program 12 times [2021-07-09 17:58:15,719 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:15,719 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411655329] [2021-07-09 17:58:15,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:15,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:15,839 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-07-09 17:58:15,839 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:15,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411655329] [2021-07-09 17:58:15,839 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411655329] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:15,839 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1631039839] [2021-07-09 17:58:15,839 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 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 [2021-07-09 17:58:15,872 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-07-09 17:58:15,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:15,872 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 8 conjunts are in the unsatisfiable core [2021-07-09 17:58:15,873 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:15,973 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:15,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1631039839] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:15,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:15,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 12 [2021-07-09 17:58:15,974 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057920388] [2021-07-09 17:58:15,974 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-07-09 17:58:15,974 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:15,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-07-09 17:58:15,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-07-09 17:58:15,975 INFO L87 Difference]: Start difference. First operand 3550 states and 14431 transitions. Second operand has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:17,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:17,172 INFO L93 Difference]: Finished difference Result 18520 states and 67963 transitions. [2021-07-09 17:58:17,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-07-09 17:58:17,173 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 37 [2021-07-09 17:58:17,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:17,227 INFO L225 Difference]: With dead ends: 18520 [2021-07-09 17:58:17,227 INFO L226 Difference]: Without dead ends: 18520 [2021-07-09 17:58:17,229 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2138 ImplicationChecksByTransitivity, 750.6ms TimeCoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2021-07-09 17:58:17,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18520 states. [2021-07-09 17:58:17,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18520 to 4298. [2021-07-09 17:58:17,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4298 states, 4297 states have (on average 4.053060274610194) internal successors, (17416), 4297 states have internal predecessors, (17416), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:17,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4298 states to 4298 states and 17416 transitions. [2021-07-09 17:58:17,546 INFO L78 Accepts]: Start accepts. Automaton has 4298 states and 17416 transitions. Word has length 37 [2021-07-09 17:58:17,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:17,546 INFO L482 AbstractCegarLoop]: Abstraction has 4298 states and 17416 transitions. [2021-07-09 17:58:17,546 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 4.6923076923076925) internal successors, (61), 12 states have internal predecessors, (61), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:17,546 INFO L276 IsEmpty]: Start isEmpty. Operand 4298 states and 17416 transitions. [2021-07-09 17:58:17,558 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-09 17:58:17,559 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:17,559 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-07-09 17:58:17,772 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-07-09 17:58:17,773 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:17,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:17,773 INFO L82 PathProgramCache]: Analyzing trace with hash 244206134, now seen corresponding path program 13 times [2021-07-09 17:58:17,773 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:17,773 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940852149] [2021-07-09 17:58:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:17,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:17,945 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-09 17:58:17,945 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:17,945 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940852149] [2021-07-09 17:58:17,945 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940852149] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:17,946 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636255470] [2021-07-09 17:58:17,946 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 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 [2021-07-09 17:58:18,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:18,023 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-09 17:58:18,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:18,132 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-07-09 17:58:18,132 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636255470] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:18,132 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:18,132 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-07-09 17:58:18,132 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381560558] [2021-07-09 17:58:18,133 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 17:58:18,133 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:18,133 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 17:58:18,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-07-09 17:58:18,133 INFO L87 Difference]: Start difference. First operand 4298 states and 17416 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:18,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:18,383 INFO L93 Difference]: Finished difference Result 7391 states and 28099 transitions. [2021-07-09 17:58:18,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 17:58:18,383 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 39 [2021-07-09 17:58:18,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:18,411 INFO L225 Difference]: With dead ends: 7391 [2021-07-09 17:58:18,412 INFO L226 Difference]: Without dead ends: 7391 [2021-07-09 17:58:18,430 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 105.3ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-07-09 17:58:18,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7391 states. [2021-07-09 17:58:18,651 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7391 to 3716. [2021-07-09 17:58:18,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3716 states, 3715 states have (on average 3.973620457604307) internal successors, (14762), 3715 states have internal predecessors, (14762), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:18,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3716 states to 3716 states and 14762 transitions. [2021-07-09 17:58:18,677 INFO L78 Accepts]: Start accepts. Automaton has 3716 states and 14762 transitions. Word has length 39 [2021-07-09 17:58:18,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:18,677 INFO L482 AbstractCegarLoop]: Abstraction has 3716 states and 14762 transitions. [2021-07-09 17:58:18,677 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 7 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:18,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3716 states and 14762 transitions. [2021-07-09 17:58:18,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2021-07-09 17:58:18,688 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:18,688 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 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] [2021-07-09 17:58:18,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,17 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:18,904 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:18,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:18,905 INFO L82 PathProgramCache]: Analyzing trace with hash 464290510, now seen corresponding path program 14 times [2021-07-09 17:58:18,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:18,905 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094028801] [2021-07-09 17:58:18,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:18,987 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-09 17:58:18,987 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:18,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094028801] [2021-07-09 17:58:18,987 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1094028801] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:18,987 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699013459] [2021-07-09 17:58:18,987 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 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 [2021-07-09 17:58:19,079 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:58:19,079 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:19,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 7 conjunts are in the unsatisfiable core [2021-07-09 17:58:19,083 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:19,200 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-07-09 17:58:19,201 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699013459] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:19,201 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:19,201 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-07-09 17:58:19,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947638425] [2021-07-09 17:58:19,201 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 17:58:19,201 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 17:58:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:19,202 INFO L87 Difference]: Start difference. First operand 3716 states and 14762 transitions. Second operand has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 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) [2021-07-09 17:58:19,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:19,480 INFO L93 Difference]: Finished difference Result 8929 states and 34274 transitions. [2021-07-09 17:58:19,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 17:58:19,480 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 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 39 [2021-07-09 17:58:19,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:19,543 INFO L225 Difference]: With dead ends: 8929 [2021-07-09 17:58:19,543 INFO L226 Difference]: Without dead ends: 8929 [2021-07-09 17:58:19,544 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 37 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 71.6ms TimeCoverageRelationStatistics Valid=68, Invalid=142, Unknown=0, NotChecked=0, Total=210 [2021-07-09 17:58:19,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8929 states. [2021-07-09 17:58:19,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8929 to 5458. [2021-07-09 17:58:19,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5458 states, 5457 states have (on average 4.080263881253436) internal successors, (22266), 5457 states have internal predecessors, (22266), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:19,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5458 states to 5458 states and 22266 transitions. [2021-07-09 17:58:19,968 INFO L78 Accepts]: Start accepts. Automaton has 5458 states and 22266 transitions. Word has length 39 [2021-07-09 17:58:19,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:19,977 INFO L482 AbstractCegarLoop]: Abstraction has 5458 states and 22266 transitions. [2021-07-09 17:58:19,977 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.0) internal successors, (45), 8 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) [2021-07-09 17:58:19,977 INFO L276 IsEmpty]: Start isEmpty. Operand 5458 states and 22266 transitions. [2021-07-09 17:58:19,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 17:58:19,992 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:19,992 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 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] [2021-07-09 17:58:20,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-07-09 17:58:20,226 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:20,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:20,227 INFO L82 PathProgramCache]: Analyzing trace with hash -316201746, now seen corresponding path program 15 times [2021-07-09 17:58:20,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:20,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038478004] [2021-07-09 17:58:20,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:20,302 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:20,302 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038478004] [2021-07-09 17:58:20,302 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038478004] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:20,303 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1392400003] [2021-07-09 17:58:20,303 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 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 [2021-07-09 17:58:20,395 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-07-09 17:58:20,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:20,396 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 10 conjunts are in the unsatisfiable core [2021-07-09 17:58:20,397 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:20,617 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-07-09 17:58:20,618 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1392400003] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:20,618 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:20,618 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 15 [2021-07-09 17:58:20,619 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595198181] [2021-07-09 17:58:20,619 INFO L462 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-07-09 17:58:20,619 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:20,619 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-07-09 17:58:20,620 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2021-07-09 17:58:20,620 INFO L87 Difference]: Start difference. First operand 5458 states and 22266 transitions. Second operand has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:21,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:21,920 INFO L93 Difference]: Finished difference Result 25578 states and 101328 transitions. [2021-07-09 17:58:21,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-07-09 17:58:21,921 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 17:58:21,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:22,011 INFO L225 Difference]: With dead ends: 25578 [2021-07-09 17:58:22,012 INFO L226 Difference]: Without dead ends: 25021 [2021-07-09 17:58:22,013 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1469 ImplicationChecksByTransitivity, 757.8ms TimeCoverageRelationStatistics Valid=870, Invalid=3420, Unknown=0, NotChecked=0, Total=4290 [2021-07-09 17:58:22,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25021 states. [2021-07-09 17:58:22,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25021 to 12090. [2021-07-09 17:58:22,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12090 states, 12089 states have (on average 4.159980147241294) internal successors, (50290), 12089 states have internal predecessors, (50290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:22,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12090 states to 12090 states and 50290 transitions. [2021-07-09 17:58:22,477 INFO L78 Accepts]: Start accepts. Automaton has 12090 states and 50290 transitions. Word has length 41 [2021-07-09 17:58:22,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:22,478 INFO L482 AbstractCegarLoop]: Abstraction has 12090 states and 50290 transitions. [2021-07-09 17:58:22,478 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 4.125) internal successors, (66), 15 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 12090 states and 50290 transitions. [2021-07-09 17:58:22,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2021-07-09 17:58:22,505 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:22,505 INFO L508 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:22,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2021-07-09 17:58:22,706 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:22,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:22,707 INFO L82 PathProgramCache]: Analyzing trace with hash 76824112, now seen corresponding path program 16 times [2021-07-09 17:58:22,707 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:22,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946423714] [2021-07-09 17:58:22,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:22,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:22,931 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 21 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-07-09 17:58:22,931 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:22,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946423714] [2021-07-09 17:58:22,931 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946423714] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:22,931 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1330985137] [2021-07-09 17:58:22,931 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 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 [2021-07-09 17:58:22,984 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:58:22,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:22,986 INFO L263 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 27 conjunts are in the unsatisfiable core [2021-07-09 17:58:22,987 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:23,051 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:23,052 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 13 [2021-07-09 17:58:23,053 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,059 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:23,061 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,061 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:29, output treesize:19 [2021-07-09 17:58:23,158 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2021-07-09 17:58:23,159 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,164 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:23,165 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,165 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:22, output treesize:14 [2021-07-09 17:58:23,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:23,196 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-07-09 17:58:23,198 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,203 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:23,204 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,204 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:24, output treesize:11 [2021-07-09 17:58:23,328 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:23,328 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 20 [2021-07-09 17:58:23,337 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:23,341 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-09 17:58:23,341 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 20 treesize of output 12 [2021-07-09 17:58:23,343 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,348 INFO L628 ElimStorePlain]: treesize reduction 16, result has 23.8 percent of original size [2021-07-09 17:58:23,349 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:23,349 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:39, output treesize:5 [2021-07-09 17:58:23,362 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:23,362 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1330985137] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:23,362 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:23,363 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 13] total 19 [2021-07-09 17:58:23,363 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026949995] [2021-07-09 17:58:23,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-07-09 17:58:23,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:23,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-07-09 17:58:23,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-07-09 17:58:23,365 INFO L87 Difference]: Start difference. First operand 12090 states and 50290 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:24,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:24,733 INFO L93 Difference]: Finished difference Result 29674 states and 123111 transitions. [2021-07-09 17:58:24,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-07-09 17:58:24,733 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 41 [2021-07-09 17:58:24,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:24,767 INFO L225 Difference]: With dead ends: 29674 [2021-07-09 17:58:24,768 INFO L226 Difference]: Without dead ends: 10661 [2021-07-09 17:58:24,768 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 34 SyntacticMatches, 2 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 557.6ms TimeCoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2021-07-09 17:58:24,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10661 states. [2021-07-09 17:58:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10661 to 10661. [2021-07-09 17:58:25,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10661 states, 10660 states have (on average 4.182833020637899) internal successors, (44589), 10660 states have internal predecessors, (44589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:25,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10661 states to 10661 states and 44589 transitions. [2021-07-09 17:58:25,096 INFO L78 Accepts]: Start accepts. Automaton has 10661 states and 44589 transitions. Word has length 41 [2021-07-09 17:58:25,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:25,096 INFO L482 AbstractCegarLoop]: Abstraction has 10661 states and 44589 transitions. [2021-07-09 17:58:25,096 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:25,096 INFO L276 IsEmpty]: Start isEmpty. Operand 10661 states and 44589 transitions. [2021-07-09 17:58:25,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 17:58:25,122 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:25,122 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:25,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-07-09 17:58:25,335 INFO L430 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:25,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:25,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1918512476, now seen corresponding path program 17 times [2021-07-09 17:58:25,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:25,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979507383] [2021-07-09 17:58:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:25,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:25,393 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:25,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979507383] [2021-07-09 17:58:25,393 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979507383] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:25,393 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624937010] [2021-07-09 17:58:25,393 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 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 [2021-07-09 17:58:25,452 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-07-09 17:58:25,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:25,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-09 17:58:25,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:25,530 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:25,531 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624937010] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:25,531 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:25,532 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-07-09 17:58:25,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2085337862] [2021-07-09 17:58:25,532 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-07-09 17:58:25,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:25,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-07-09 17:58:25,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2021-07-09 17:58:25,533 INFO L87 Difference]: Start difference. First operand 10661 states and 44589 transitions. Second operand has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:26,018 INFO L93 Difference]: Finished difference Result 29121 states and 115415 transitions. [2021-07-09 17:58:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 17:58:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-07-09 17:58:26,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:26,223 INFO L225 Difference]: With dead ends: 29121 [2021-07-09 17:58:26,224 INFO L226 Difference]: Without dead ends: 29121 [2021-07-09 17:58:26,224 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 43 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 110.7ms TimeCoverageRelationStatistics Valid=108, Invalid=234, Unknown=0, NotChecked=0, Total=342 [2021-07-09 17:58:26,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29121 states. [2021-07-09 17:58:26,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29121 to 13495. [2021-07-09 17:58:26,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13495 states, 13494 states have (on average 4.214910330517267) internal successors, (56876), 13494 states have internal predecessors, (56876), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:26,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13495 states to 13495 states and 56876 transitions. [2021-07-09 17:58:26,899 INFO L78 Accepts]: Start accepts. Automaton has 13495 states and 56876 transitions. Word has length 45 [2021-07-09 17:58:26,899 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:26,899 INFO L482 AbstractCegarLoop]: Abstraction has 13495 states and 56876 transitions. [2021-07-09 17:58:26,899 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 4.181818181818182) internal successors, (46), 10 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:26,899 INFO L276 IsEmpty]: Start isEmpty. Operand 13495 states and 56876 transitions. [2021-07-09 17:58:26,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 17:58:26,928 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:26,928 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:27,128 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2021-07-09 17:58:27,128 INFO L430 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:27,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:27,129 INFO L82 PathProgramCache]: Analyzing trace with hash 1257155186, now seen corresponding path program 18 times [2021-07-09 17:58:27,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:27,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076134378] [2021-07-09 17:58:27,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:27,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:27,269 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:27,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1076134378] [2021-07-09 17:58:27,269 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1076134378] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:27,269 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911694231] [2021-07-09 17:58:27,269 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 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 [2021-07-09 17:58:27,311 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2021-07-09 17:58:27,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:27,312 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-09 17:58:27,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:27,382 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 13 proven. 12 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:27,382 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911694231] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:27,382 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:27,382 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-07-09 17:58:27,382 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412400386] [2021-07-09 17:58:27,382 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 17:58:27,382 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:27,383 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 17:58:27,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2021-07-09 17:58:27,383 INFO L87 Difference]: Start difference. First operand 13495 states and 56876 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:27,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:27,624 INFO L93 Difference]: Finished difference Result 17084 states and 68774 transitions. [2021-07-09 17:58:27,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-07-09 17:58:27,624 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-07-09 17:58:27,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:27,678 INFO L225 Difference]: With dead ends: 17084 [2021-07-09 17:58:27,678 INFO L226 Difference]: Without dead ends: 17079 [2021-07-09 17:58:27,678 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 49.5ms TimeCoverageRelationStatistics Valid=48, Invalid=84, Unknown=0, NotChecked=0, Total=132 [2021-07-09 17:58:27,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17079 states. [2021-07-09 17:58:28,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17079 to 11949. [2021-07-09 17:58:28,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11949 states, 11948 states have (on average 4.176012721794443) internal successors, (49895), 11948 states have internal predecessors, (49895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:28,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11949 states to 11949 states and 49895 transitions. [2021-07-09 17:58:28,077 INFO L78 Accepts]: Start accepts. Automaton has 11949 states and 49895 transitions. Word has length 45 [2021-07-09 17:58:28,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:28,078 INFO L482 AbstractCegarLoop]: Abstraction has 11949 states and 49895 transitions. [2021-07-09 17:58:28,078 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:28,078 INFO L276 IsEmpty]: Start isEmpty. Operand 11949 states and 49895 transitions. [2021-07-09 17:58:28,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 17:58:28,102 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:28,102 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:28,302 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable36 [2021-07-09 17:58:28,303 INFO L430 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:28,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:28,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1355059624, now seen corresponding path program 19 times [2021-07-09 17:58:28,303 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:28,303 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310651919] [2021-07-09 17:58:28,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:28,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:28,352 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:28,352 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:28,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310651919] [2021-07-09 17:58:28,352 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310651919] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:28,352 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1664234818] [2021-07-09 17:58:28,352 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 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 [2021-07-09 17:58:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:28,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-09 17:58:28,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:28,459 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 14 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:28,459 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1664234818] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:28,459 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:28,459 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2021-07-09 17:58:28,459 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581155109] [2021-07-09 17:58:28,460 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-07-09 17:58:28,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:28,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-07-09 17:58:28,460 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-07-09 17:58:28,460 INFO L87 Difference]: Start difference. First operand 11949 states and 49895 transitions. Second operand has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:28,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:28,864 INFO L93 Difference]: Finished difference Result 25411 states and 101469 transitions. [2021-07-09 17:58:28,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 17:58:28,864 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-07-09 17:58:28,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:28,947 INFO L225 Difference]: With dead ends: 25411 [2021-07-09 17:58:28,947 INFO L226 Difference]: Without dead ends: 25396 [2021-07-09 17:58:28,948 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 66.9ms TimeCoverageRelationStatistics Valid=64, Invalid=118, Unknown=0, NotChecked=0, Total=182 [2021-07-09 17:58:28,974 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25396 states. [2021-07-09 17:58:29,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25396 to 16947. [2021-07-09 17:58:29,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16947 states, 16946 states have (on average 4.316711908414965) internal successors, (73151), 16946 states have internal predecessors, (73151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16947 states to 16947 states and 73151 transitions. [2021-07-09 17:58:29,659 INFO L78 Accepts]: Start accepts. Automaton has 16947 states and 73151 transitions. Word has length 45 [2021-07-09 17:58:29,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:29,659 INFO L482 AbstractCegarLoop]: Abstraction has 16947 states and 73151 transitions. [2021-07-09 17:58:29,659 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 5.111111111111111) internal successors, (46), 8 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:29,659 INFO L276 IsEmpty]: Start isEmpty. Operand 16947 states and 73151 transitions. [2021-07-09 17:58:29,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 17:58:29,702 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:29,702 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:29,916 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,23 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 17:58:29,917 INFO L430 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:29,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:29,917 INFO L82 PathProgramCache]: Analyzing trace with hash -2063999716, now seen corresponding path program 20 times [2021-07-09 17:58:29,917 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:29,917 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [742459269] [2021-07-09 17:58:29,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:29,960 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:29,960 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:29,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [742459269] [2021-07-09 17:58:29,961 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [742459269] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:29,961 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1998387689] [2021-07-09 17:58:29,961 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 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 [2021-07-09 17:58:30,014 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-07-09 17:58:30,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:30,015 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 9 conjunts are in the unsatisfiable core [2021-07-09 17:58:30,016 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-07-09 17:58:30,090 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1998387689] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:30,090 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:30,091 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-07-09 17:58:30,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003987238] [2021-07-09 17:58:30,091 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 17:58:30,091 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:30,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 17:58:30,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2021-07-09 17:58:30,092 INFO L87 Difference]: Start difference. First operand 16947 states and 73151 transitions. Second operand has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:30,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:30,537 INFO L93 Difference]: Finished difference Result 28052 states and 112596 transitions. [2021-07-09 17:58:30,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-07-09 17:58:30,538 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-07-09 17:58:30,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:30,867 INFO L225 Difference]: With dead ends: 28052 [2021-07-09 17:58:30,868 INFO L226 Difference]: Without dead ends: 28052 [2021-07-09 17:58:30,868 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 195.9ms TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2021-07-09 17:58:30,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28052 states. [2021-07-09 17:58:31,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28052 to 17627. [2021-07-09 17:58:31,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17627 states, 17626 states have (on average 4.310790877113355) internal successors, (75982), 17626 states have internal predecessors, (75982), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:31,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17627 states to 17627 states and 75982 transitions. [2021-07-09 17:58:31,562 INFO L78 Accepts]: Start accepts. Automaton has 17627 states and 75982 transitions. Word has length 45 [2021-07-09 17:58:31,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:31,562 INFO L482 AbstractCegarLoop]: Abstraction has 17627 states and 75982 transitions. [2021-07-09 17:58:31,562 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 5.75) internal successors, (46), 7 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:31,562 INFO L276 IsEmpty]: Start isEmpty. Operand 17627 states and 75982 transitions. [2021-07-09 17:58:31,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2021-07-09 17:58:31,607 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:31,608 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:31,809 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2021-07-09 17:58:31,809 INFO L430 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:31,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:31,810 INFO L82 PathProgramCache]: Analyzing trace with hash 953180244, now seen corresponding path program 21 times [2021-07-09 17:58:31,810 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:31,810 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1797680774] [2021-07-09 17:58:31,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:31,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:32,030 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-07-09 17:58:32,030 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:32,030 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1797680774] [2021-07-09 17:58:32,031 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1797680774] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:32,031 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591030131] [2021-07-09 17:58:32,031 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 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 [2021-07-09 17:58:32,069 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-07-09 17:58:32,069 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:32,070 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 18 conjunts are in the unsatisfiable core [2021-07-09 17:58:32,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:32,200 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-09 17:58:32,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-07-09 17:58:32,205 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:32,231 INFO L628 ElimStorePlain]: treesize reduction 15, result has 67.4 percent of original size [2021-07-09 17:58:32,240 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:58:32,240 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:29, output treesize:28 [2021-07-09 17:58:32,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:32,380 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-09 17:58:32,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-07-09 17:58:32,385 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:32,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:32,391 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-07-09 17:58:32,392 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:32,448 INFO L628 ElimStorePlain]: treesize reduction 15, result has 79.5 percent of original size [2021-07-09 17:58:32,458 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2021-07-09 17:58:32,459 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:66, output treesize:50 [2021-07-09 17:58:32,575 INFO L354 Elim1Store]: treesize reduction 12, result has 60.0 percent of original size [2021-07-09 17:58:32,576 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 16 treesize of output 28 [2021-07-09 17:58:32,580 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:32,612 INFO L628 ElimStorePlain]: treesize reduction 15, result has 69.4 percent of original size [2021-07-09 17:58:32,621 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2021-07-09 17:58:32,621 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:32, output treesize:34 [2021-07-09 17:58:33,077 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 18 [2021-07-09 17:58:33,111 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:33,112 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 17 [2021-07-09 17:58:33,119 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:33,130 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:33,140 INFO L550 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-1 vars, End of recursive call: and 2 xjuncts. [2021-07-09 17:58:33,140 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:34, output treesize:31 [2021-07-09 17:58:33,234 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 19 proven. 7 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-09 17:58:33,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591030131] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:33,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:33,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 13] total 21 [2021-07-09 17:58:33,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137523877] [2021-07-09 17:58:33,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 21 states [2021-07-09 17:58:33,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:33,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-07-09 17:58:33,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=362, Unknown=0, NotChecked=0, Total=420 [2021-07-09 17:58:33,236 INFO L87 Difference]: Start difference. First operand 17627 states and 75982 transitions. Second operand has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:37,466 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 28 [2021-07-09 17:58:37,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:37,575 INFO L93 Difference]: Finished difference Result 45459 states and 178326 transitions. [2021-07-09 17:58:37,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2021-07-09 17:58:37,576 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 45 [2021-07-09 17:58:37,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:37,786 INFO L225 Difference]: With dead ends: 45459 [2021-07-09 17:58:37,786 INFO L226 Difference]: Without dead ends: 44947 [2021-07-09 17:58:37,788 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 190 GetRequests, 90 SyntacticMatches, 10 SemanticMatches, 90 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2464 ImplicationChecksByTransitivity, 2936.6ms TimeCoverageRelationStatistics Valid=1243, Invalid=7129, Unknown=0, NotChecked=0, Total=8372 [2021-07-09 17:58:37,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44947 states. [2021-07-09 17:58:38,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44947 to 20763. [2021-07-09 17:58:38,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20763 states, 20762 states have (on average 4.309266929968211) internal successors, (89469), 20762 states have internal predecessors, (89469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:38,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20763 states to 20763 states and 89469 transitions. [2021-07-09 17:58:38,941 INFO L78 Accepts]: Start accepts. Automaton has 20763 states and 89469 transitions. Word has length 45 [2021-07-09 17:58:38,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:38,941 INFO L482 AbstractCegarLoop]: Abstraction has 20763 states and 89469 transitions. [2021-07-09 17:58:38,941 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 21 states, 21 states have (on average 3.619047619047619) internal successors, (76), 21 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:38,941 INFO L276 IsEmpty]: Start isEmpty. Operand 20763 states and 89469 transitions. [2021-07-09 17:58:38,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-07-09 17:58:38,990 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:38,990 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:39,192 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2021-07-09 17:58:39,193 INFO L430 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:39,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:39,193 INFO L82 PathProgramCache]: Analyzing trace with hash 1505718650, now seen corresponding path program 22 times [2021-07-09 17:58:39,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:39,193 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892185469] [2021-07-09 17:58:39,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:39,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:39,522 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 2 proven. 34 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-07-09 17:58:39,522 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:39,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892185469] [2021-07-09 17:58:39,522 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892185469] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:39,522 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607053805] [2021-07-09 17:58:39,522 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 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 [2021-07-09 17:58:39,565 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-07-09 17:58:39,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:39,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 24 conjunts are in the unsatisfiable core [2021-07-09 17:58:39,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:39,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:39,765 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 18 [2021-07-09 17:58:39,766 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:39,770 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:39,771 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:39,771 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:23, output treesize:7 [2021-07-09 17:58:39,898 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:39,899 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 18 [2021-07-09 17:58:39,904 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:58:39,909 INFO L354 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2021-07-09 17:58:39,909 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 18 treesize of output 10 [2021-07-09 17:58:39,911 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:39,917 INFO L628 ElimStorePlain]: treesize reduction 12, result has 20.0 percent of original size [2021-07-09 17:58:39,917 INFO L550 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:39,918 INFO L247 ElimStorePlain]: Needed 3 recursive calls to eliminate 4 variables, input treesize:35, output treesize:3 [2021-07-09 17:58:39,932 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-07-09 17:58:39,932 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607053805] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:39,932 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:58:39,932 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14] total 23 [2021-07-09 17:58:39,932 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [799805621] [2021-07-09 17:58:39,933 INFO L462 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-07-09 17:58:39,933 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:58:39,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-07-09 17:58:39,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-07-09 17:58:39,934 INFO L87 Difference]: Start difference. First operand 20763 states and 89469 transitions. Second operand has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:41,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 17:58:41,611 INFO L93 Difference]: Finished difference Result 37037 states and 154685 transitions. [2021-07-09 17:58:41,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-07-09 17:58:41,611 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-07-09 17:58:41,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 17:58:41,690 INFO L225 Difference]: With dead ends: 37037 [2021-07-09 17:58:41,691 INFO L226 Difference]: Without dead ends: 20247 [2021-07-09 17:58:41,691 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 40 SyntacticMatches, 1 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 428 ImplicationChecksByTransitivity, 793.8ms TimeCoverageRelationStatistics Valid=323, Invalid=1839, Unknown=0, NotChecked=0, Total=2162 [2021-07-09 17:58:41,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20247 states. [2021-07-09 17:58:42,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20247 to 20145. [2021-07-09 17:58:42,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20145 states, 20144 states have (on average 4.329527402700556) internal successors, (87214), 20144 states have internal predecessors, (87214), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:42,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20145 states to 20145 states and 87214 transitions. [2021-07-09 17:58:42,312 INFO L78 Accepts]: Start accepts. Automaton has 20145 states and 87214 transitions. Word has length 47 [2021-07-09 17:58:42,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 17:58:42,313 INFO L482 AbstractCegarLoop]: Abstraction has 20145 states and 87214 transitions. [2021-07-09 17:58:42,313 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.5416666666666665) internal successors, (85), 23 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:58:42,313 INFO L276 IsEmpty]: Start isEmpty. Operand 20145 states and 87214 transitions. [2021-07-09 17:58:42,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-07-09 17:58:42,359 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 17:58:42,359 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 17:58:42,559 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable73 [2021-07-09 17:58:42,560 INFO L430 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 17:58:42,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 17:58:42,560 INFO L82 PathProgramCache]: Analyzing trace with hash -1052185102, now seen corresponding path program 23 times [2021-07-09 17:58:42,560 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 17:58:42,560 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183204186] [2021-07-09 17:58:42,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 17:58:42,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 17:58:43,585 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 37 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2021-07-09 17:58:43,585 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 17:58:43,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183204186] [2021-07-09 17:58:43,585 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183204186] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:58:43,585 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125220079] [2021-07-09 17:58:43,585 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 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 [2021-07-09 17:58:43,635 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-07-09 17:58:43,635 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 17:58:43,636 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 35 conjunts are in the unsatisfiable core [2021-07-09 17:58:43,637 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 17:58:43,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 7 [2021-07-09 17:58:43,683 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:43,687 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:58:43,688 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 17:58:43,688 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-07-09 17:58:44,153 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2021-07-09 17:58:44,969 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-07-09 17:58:45,635 WARN L205 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 172 [2021-07-09 17:58:46,125 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,221 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-07-09 17:58:46,233 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,357 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 35 treesize of output 64 [2021-07-09 17:58:46,365 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,490 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,490 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-07-09 17:58:46,501 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,604 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,605 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-07-09 17:58:46,613 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,719 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 37 treesize of output 64 [2021-07-09 17:58:46,730 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,855 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:46,856 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 33 treesize of output 64 [2021-07-09 17:58:46,869 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:46,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:46,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:47,014 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:47,014 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 33 treesize of output 64 [2021-07-09 17:58:47,023 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:47,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:47,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:47,164 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 22 [2021-07-09 17:58:47,164 INFO L354 Elim1Store]: treesize reduction 72, result has 32.7 percent of original size [2021-07-09 17:58:47,164 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 35 treesize of output 64 [2021-07-09 17:58:47,170 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:48,261 WARN L205 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 293 DAG size of output: 249 [2021-07-09 17:58:48,262 INFO L628 ElimStorePlain]: treesize reduction 196, result has 81.3 percent of original size [2021-07-09 17:58:49,232 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 26 dim-0 vars, and 8 xjuncts. [2021-07-09 17:58:49,233 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:517, output treesize:997 [2021-07-09 17:58:51,185 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 351 [2021-07-09 17:58:53,356 WARN L205 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 265 DAG size of output: 202 [2021-07-09 17:58:53,536 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,537 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,542 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,556 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,562 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2021-07-09 17:58:53,564 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,579 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,600 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-07-09 17:58:53,602 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,619 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,626 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,640 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 41 treesize of output 39 [2021-07-09 17:58:53,642 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,661 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,672 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,681 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2021-07-09 17:58:53,683 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,698 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,706 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,719 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-07-09 17:58:53,721 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,731 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,737 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,746 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 37 [2021-07-09 17:58:53,747 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,772 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,784 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,787 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 39 [2021-07-09 17:58:53,789 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:53,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,803 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:58:53,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:58:53,806 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 37 [2021-07-09 17:58:53,808 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-09 17:58:54,179 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 179 [2021-07-09 17:58:54,180 INFO L628 ElimStorePlain]: treesize reduction 16, result has 96.7 percent of original size [2021-07-09 17:58:54,220 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 24 dim-0 vars, and 8 xjuncts. [2021-07-09 17:58:54,220 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:557, output treesize:423 [2021-07-09 17:58:56,069 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-07-09 17:58:56,692 WARN L205 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-07-09 17:58:58,033 WARN L205 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 369 DAG size of output: 191 [2021-07-09 17:58:59,843 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 198 DAG size of output: 188 [2021-07-09 17:59:01,343 INFO L446 ElimStorePlain]: Different costs {10=[v_prenex_82, v_prenex_86, v_prenex_77, v_prenex_88], 14=[A, v_prenex_80, v_prenex_75, v_prenex_84], 350=[v_prenex_114]} [2021-07-09 17:59:01,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,373 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,421 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:01,421 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 55 [2021-07-09 17:59:01,448 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:01,935 WARN L205 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 386 [2021-07-09 17:59:01,935 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:01,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:01,997 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:01,998 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 55 [2021-07-09 17:59:02,044 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:03,031 WARN L205 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 383 DAG size of output: 378 [2021-07-09 17:59:03,032 INFO L628 ElimStorePlain]: treesize reduction 9, result has 99.0 percent of original size [2021-07-09 17:59:03,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:03,090 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:03,090 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 57 [2021-07-09 17:59:03,118 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:04,025 WARN L205 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 378 DAG size of output: 373 [2021-07-09 17:59:04,027 INFO L628 ElimStorePlain]: treesize reduction 22, result has 97.7 percent of original size [2021-07-09 17:59:04,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:04,099 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:04,099 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 55 [2021-07-09 17:59:04,146 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:04,997 WARN L205 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 370 DAG size of output: 367 [2021-07-09 17:59:04,998 INFO L628 ElimStorePlain]: treesize reduction 5, result has 99.4 percent of original size [2021-07-09 17:59:05,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,026 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:05,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:05,074 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:05,074 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 57 [2021-07-09 17:59:05,143 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 3 xjuncts. [2021-07-09 17:59:06,553 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 371 DAG size of output: 358 [2021-07-09 17:59:06,554 INFO L628 ElimStorePlain]: treesize reduction 51, result has 94.5 percent of original size [2021-07-09 17:59:06,576 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,577 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,579 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,581 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:06,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:06,613 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:06,613 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 37 treesize of output 55 [2021-07-09 17:59:06,665 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 3 xjuncts. [2021-07-09 17:59:07,491 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 353 DAG size of output: 347 [2021-07-09 17:59:07,492 INFO L628 ElimStorePlain]: treesize reduction 19, result has 97.8 percent of original size [2021-07-09 17:59:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:07,521 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:07,553 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:07,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 55 [2021-07-09 17:59:07,585 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:08,410 WARN L205 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 349 DAG size of output: 336 [2021-07-09 17:59:08,411 INFO L628 ElimStorePlain]: treesize reduction 41, result has 95.3 percent of original size [2021-07-09 17:59:08,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,435 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:08,440 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:08,472 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:08,473 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 41 treesize of output 55 [2021-07-09 17:59:08,500 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-07-09 17:59:09,332 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 336 DAG size of output: 326 [2021-07-09 17:59:09,333 INFO L628 ElimStorePlain]: treesize reduction 27, result has 96.7 percent of original size [2021-07-09 17:59:09,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,359 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,360 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,363 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,365 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,373 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,430 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-09 17:59:09,430 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 47 [2021-07-09 17:59:09,437 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,539 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:09,539 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 55 [2021-07-09 17:59:09,557 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,580 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,588 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,600 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,651 INFO L354 Elim1Store]: treesize reduction 12, result has 63.6 percent of original size [2021-07-09 17:59:09,651 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 43 [2021-07-09 17:59:09,656 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,683 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,693 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:09,741 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-09 17:59:09,742 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 43 treesize of output 49 [2021-07-09 17:59:09,749 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,773 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,777 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,832 INFO L354 Elim1Store]: treesize reduction 8, result has 75.8 percent of original size [2021-07-09 17:59:09,833 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 47 [2021-07-09 17:59:09,841 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,926 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-09 17:59:09,927 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 53 [2021-07-09 17:59:09,937 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:09,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:09,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,021 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-09 17:59:10,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 51 [2021-07-09 17:59:10,044 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:10,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,075 INFO L173 IndexEqualityManager]: detected equality via solver [2021-07-09 17:59:10,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 17:59:10,119 INFO L354 Elim1Store]: treesize reduction 4, result has 87.9 percent of original size [2021-07-09 17:59:10,119 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 39 treesize of output 51 [2021-07-09 17:59:10,129 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 1 xjuncts. [2021-07-09 17:59:10,408 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-07-09 17:59:10,408 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 17:59:10,444 INFO L550 ElimStorePlain]: Start of recursive call 1: 57 dim-0 vars, 9 dim-1 vars, End of recursive call: and 3 xjuncts. [2021-07-09 17:59:10,444 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 66 variables, input treesize:973, output treesize:12 [2021-07-09 17:59:10,460 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-07-09 17:59:10,460 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125220079] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 17:59:10,460 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-07-09 17:59:10,460 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 27 [2021-07-09 17:59:10,461 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184200513] [2021-07-09 17:59:10,461 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-07-09 17:59:10,461 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 17:59:10,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-07-09 17:59:10,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=634, Unknown=0, NotChecked=0, Total=756 [2021-07-09 17:59:10,462 INFO L87 Difference]: Start difference. First operand 20145 states and 87214 transitions. Second operand has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 17:59:28,617 WARN L205 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 212 DAG size of output: 204 [2021-07-09 17:59:28,914 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2021-07-09 17:59:38,859 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 99 [2021-07-09 17:59:39,601 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2021-07-09 18:00:24,900 WARN L205 SmtUtils]: Spent 44.61 s on a formula simplification. DAG size of input: 394 DAG size of output: 386 [2021-07-09 18:00:31,405 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 189 DAG size of output: 181 [2021-07-09 18:00:33,598 WARN L205 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 100 DAG size of output: 100 [2021-07-09 18:00:41,371 WARN L205 SmtUtils]: Spent 5.07 s on a formula simplification. DAG size of input: 192 DAG size of output: 183 [2021-07-09 18:00:44,602 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 354 DAG size of output: 346 [2021-07-09 18:00:55,892 WARN L205 SmtUtils]: Spent 7.43 s on a formula simplification. DAG size of input: 214 DAG size of output: 206 [2021-07-09 18:01:04,333 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 193 DAG size of output: 184 [2021-07-09 18:01:09,593 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 355 DAG size of output: 347 [2021-07-09 18:01:21,963 WARN L205 SmtUtils]: Spent 7.39 s on a formula simplification. DAG size of input: 215 DAG size of output: 207 [2021-07-09 18:01:31,524 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2021-07-09 18:01:34,784 WARN L205 SmtUtils]: Spent 825.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-07-09 18:01:35,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 18:01:35,941 INFO L93 Difference]: Finished difference Result 37534 states and 159289 transitions. [2021-07-09 18:01:35,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2021-07-09 18:01:35,942 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 47 [2021-07-09 18:01:35,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 18:01:36,037 INFO L225 Difference]: With dead ends: 37534 [2021-07-09 18:01:36,037 INFO L226 Difference]: Without dead ends: 20097 [2021-07-09 18:01:36,038 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 32 SyntacticMatches, 5 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 724 ImplicationChecksByTransitivity, 111795.6ms TimeCoverageRelationStatistics Valid=448, Invalid=2301, Unknown=7, NotChecked=0, Total=2756 [2021-07-09 18:01:36,066 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20097 states. [2021-07-09 18:01:36,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20097 to 20097. [2021-07-09 18:01:36,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20097 states, 20096 states have (on average 4.333897292993631) internal successors, (87094), 20096 states have internal predecessors, (87094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 18:01:36,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20097 states to 20097 states and 87094 transitions. [2021-07-09 18:01:36,695 INFO L78 Accepts]: Start accepts. Automaton has 20097 states and 87094 transitions. Word has length 47 [2021-07-09 18:01:36,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 18:01:36,695 INFO L482 AbstractCegarLoop]: Abstraction has 20097 states and 87094 transitions. [2021-07-09 18:01:36,696 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 2.642857142857143) internal successors, (74), 27 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 18:01:36,696 INFO L276 IsEmpty]: Start isEmpty. Operand 20097 states and 87094 transitions. [2021-07-09 18:01:36,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-07-09 18:01:36,752 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 18:01:36,752 INFO L508 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 18:01:36,957 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80,27 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 18:01:36,957 INFO L430 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-07-09 18:01:36,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 18:01:36,958 INFO L82 PathProgramCache]: Analyzing trace with hash 790962414, now seen corresponding path program 24 times [2021-07-09 18:01:36,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 18:01:36,958 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [65269526] [2021-07-09 18:01:36,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 18:01:36,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 18:01:37,424 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 14 [2021-07-09 18:01:37,972 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 10 [2021-07-09 18:01:38,272 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 1 proven. 32 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-07-09 18:01:38,272 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 18:01:38,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [65269526] [2021-07-09 18:01:38,272 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [65269526] provided 0 perfect and 1 imperfect interpolant sequences [2021-07-09 18:01:38,272 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1025215890] [2021-07-09 18:01:38,273 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 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 28 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-07-09 18:01:38,328 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2021-07-09 18:01:38,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-07-09 18:01:38,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 125 conjuncts, 32 conjunts are in the unsatisfiable core [2021-07-09 18:01:38,331 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-07-09 18:01:38,368 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 7 [2021-07-09 18:01:38,372 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 18:01:38,407 INFO L628 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 18:01:38,408 INFO L550 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2021-07-09 18:01:38,408 INFO L247 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:20, output treesize:10 [2021-07-09 18:01:38,980 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2021-07-09 18:01:39,261 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2021-07-09 18:01:39,707 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-07-09 18:01:40,217 WARN L205 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-07-09 18:01:41,714 WARN L205 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-07-09 18:01:43,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,180 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,323 INFO L244 Elim1Store]: Index analysis took 182 ms [2021-07-09 18:01:43,716 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:43,716 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:43,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-07-09 18:01:43,727 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 2 xjuncts. [2021-07-09 18:01:43,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:43,927 INFO L244 Elim1Store]: Index analysis took 176 ms [2021-07-09 18:01:44,328 WARN L205 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:44,329 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:44,329 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 76 [2021-07-09 18:01:44,337 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 18:01:44,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,380 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,410 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:44,597 INFO L244 Elim1Store]: Index analysis took 228 ms [2021-07-09 18:01:45,026 WARN L205 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:45,026 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:45,026 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 35 treesize of output 76 [2021-07-09 18:01:45,036 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-09 18:01:45,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,104 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,110 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,124 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,129 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,265 INFO L244 Elim1Store]: Index analysis took 194 ms [2021-07-09 18:01:45,715 WARN L205 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:45,715 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:45,716 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-07-09 18:01:45,733 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-09 18:01:45,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,775 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:45,940 INFO L244 Elim1Store]: Index analysis took 180 ms [2021-07-09 18:01:46,381 WARN L205 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:46,382 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:46,382 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 31 treesize of output 76 [2021-07-09 18:01:46,387 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2021-07-09 18:01:46,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:46,607 INFO L244 Elim1Store]: Index analysis took 191 ms [2021-07-09 18:01:47,038 WARN L205 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:47,038 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:47,038 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 33 treesize of output 76 [2021-07-09 18:01:47,044 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-09 18:01:47,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,122 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,288 INFO L244 Elim1Store]: Index analysis took 216 ms [2021-07-09 18:01:47,751 WARN L205 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:47,751 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:47,751 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-07-09 18:01:47,765 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-07-09 18:01:47,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,833 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:47,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:01:48,346 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:01:48,346 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:01:48,347 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 76 [2021-07-09 18:01:48,362 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-07-09 18:01:58,411 WARN L205 SmtUtils]: Spent 10.05 s on a formula simplification. DAG size of input: 370 DAG size of output: 273 [2021-07-09 18:01:58,412 INFO L628 ElimStorePlain]: treesize reduction 611, result has 61.8 percent of original size [2021-07-09 18:01:59,160 INFO L550 ElimStorePlain]: Start of recursive call 1: 25 dim-0 vars, 1 dim-1 vars, End of recursive call: 24 dim-0 vars, and 8 xjuncts. [2021-07-09 18:01:59,161 INFO L247 ElimStorePlain]: Needed 9 recursive calls to eliminate 26 variables, input treesize:483, output treesize:1051 [2021-07-09 18:02:01,994 WARN L205 SmtUtils]: Spent 1.54 s on a formula simplification that was a NOOP. DAG size: 330 [2021-07-09 18:02:15,113 WARN L205 SmtUtils]: Spent 8.14 s on a formula simplification. DAG size of input: 323 DAG size of output: 246 [2021-07-09 18:02:15,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:15,714 INFO L244 Elim1Store]: Index analysis took 184 ms [2021-07-09 18:02:16,260 WARN L205 SmtUtils]: Spent 543.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:16,260 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:16,260 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:02:16,277 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:16,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:16,500 INFO L244 Elim1Store]: Index analysis took 187 ms [2021-07-09 18:02:17,078 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:17,078 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:17,078 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-07-09 18:02:17,095 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:17,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:17,327 INFO L244 Elim1Store]: Index analysis took 193 ms [2021-07-09 18:02:17,925 WARN L205 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:17,925 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:17,925 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:02:17,952 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:18,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,246 INFO L244 Elim1Store]: Index analysis took 250 ms [2021-07-09 18:02:18,906 WARN L205 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:18,906 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:18,906 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:02:18,922 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:18,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:18,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,204 INFO L244 Elim1Store]: Index analysis took 240 ms [2021-07-09 18:02:19,821 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:19,821 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:19,821 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:02:19,837 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:19,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:19,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,098 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,098 INFO L244 Elim1Store]: Index analysis took 213 ms [2021-07-09 18:02:20,806 WARN L205 SmtUtils]: Spent 704.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:20,806 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:20,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:02:20,819 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:20,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:20,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,078 INFO L244 Elim1Store]: Index analysis took 214 ms [2021-07-09 18:02:21,722 WARN L205 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:21,722 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:21,722 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 90 [2021-07-09 18:02:21,744 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:21,798 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:21,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,007 INFO L244 Elim1Store]: Index analysis took 214 ms [2021-07-09 18:02:22,696 WARN L205 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:22,696 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:22,697 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:02:22,715 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:22,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:22,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,002 INFO L244 Elim1Store]: Index analysis took 230 ms [2021-07-09 18:02:23,702 WARN L205 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:23,702 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:23,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:02:23,731 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:23,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,794 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:23,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,004 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-07-09 18:02:24,723 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:24,724 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:24,724 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-07-09 18:02:24,737 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:24,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,797 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:24,840 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,029 INFO L244 Elim1Store]: Index analysis took 244 ms [2021-07-09 18:02:25,747 WARN L205 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:25,748 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:25,748 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-07-09 18:02:25,758 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:25,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:25,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,041 INFO L244 Elim1Store]: Index analysis took 232 ms [2021-07-09 18:02:26,768 WARN L205 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:26,768 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:26,768 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-07-09 18:02:26,789 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:26,849 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:26,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,068 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-07-09 18:02:27,830 WARN L205 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:27,830 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:27,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:02:27,849 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:27,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:27,957 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,127 INFO L244 Elim1Store]: Index analysis took 224 ms [2021-07-09 18:02:28,829 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:28,830 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:28,830 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:02:28,856 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 2 xjuncts. [2021-07-09 18:02:28,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,950 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:28,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:29,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:29,156 INFO L244 Elim1Store]: Index analysis took 240 ms [2021-07-09 18:02:29,904 WARN L205 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:29,904 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:29,904 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 92 [2021-07-09 18:02:29,913 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-09 18:02:29,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:29,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:30,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:30,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:30,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:02:30,807 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:02:30,807 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:02:30,807 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-07-09 18:02:30,818 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-07-09 18:03:09,327 WARN L205 SmtUtils]: Spent 38.51 s on a formula simplification. DAG size of input: 845 DAG size of output: 625 [2021-07-09 18:03:09,329 INFO L628 ElimStorePlain]: treesize reduction 1860, result has 59.2 percent of original size [2021-07-09 18:03:12,648 INFO L550 ElimStorePlain]: Start of recursive call 1: 49 dim-0 vars, 1 dim-1 vars, End of recursive call: 59 dim-0 vars, and 16 xjuncts. [2021-07-09 18:03:12,648 INFO L247 ElimStorePlain]: Needed 17 recursive calls to eliminate 50 variables, input treesize:1069, output treesize:2898 [2021-07-09 18:03:50,478 WARN L205 SmtUtils]: Spent 23.26 s on a formula simplification that was a NOOP. DAG size: 808 [2021-07-09 18:03:53,422 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 872 DAG size of output: 795 [2021-07-09 18:04:43,131 WARN L205 SmtUtils]: Spent 34.36 s on a formula simplification. DAG size of input: 1024 DAG size of output: 604 [2021-07-09 18:04:44,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:44,764 INFO L244 Elim1Store]: Index analysis took 263 ms [2021-07-09 18:04:45,552 WARN L205 SmtUtils]: Spent 785.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:45,553 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:45,553 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:04:45,566 INFO L550 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2021-07-09 18:04:45,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:45,923 INFO L244 Elim1Store]: Index analysis took 272 ms [2021-07-09 18:04:46,712 WARN L205 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:46,713 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:46,713 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-07-09 18:04:46,744 INFO L550 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:46,839 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:46,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:46,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:46,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:46,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:46,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,074 INFO L244 Elim1Store]: Index analysis took 240 ms [2021-07-09 18:04:47,500 WARN L205 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:04:47,500 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:04:47,500 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 66 [2021-07-09 18:04:47,506 INFO L550 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2021-07-09 18:04:47,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:47,867 INFO L244 Elim1Store]: Index analysis took 273 ms [2021-07-09 18:04:48,796 WARN L205 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:48,796 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:48,797 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:04:48,817 INFO L550 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:48,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:48,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:48,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:48,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:48,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:48,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:49,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:49,199 INFO L244 Elim1Store]: Index analysis took 290 ms [2021-07-09 18:04:50,105 WARN L205 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:50,106 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:50,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:04:50,120 INFO L550 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:50,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,259 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,280 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:50,521 INFO L244 Elim1Store]: Index analysis took 303 ms [2021-07-09 18:04:51,427 WARN L205 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:51,427 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:51,428 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 90 [2021-07-09 18:04:51,467 INFO L550 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:51,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:51,851 INFO L244 Elim1Store]: Index analysis took 276 ms [2021-07-09 18:04:52,731 WARN L205 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:52,732 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:52,732 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:04:52,746 INFO L550 ElimStorePlain]: Start of recursive call 8: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:52,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:52,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:52,893 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:52,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:52,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:53,127 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:53,127 INFO L244 Elim1Store]: Index analysis took 278 ms [2021-07-09 18:04:54,192 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:54,193 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:54,193 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 33 treesize of output 90 [2021-07-09 18:04:54,199 INFO L550 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2021-07-09 18:04:54,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:54,613 INFO L244 Elim1Store]: Index analysis took 309 ms [2021-07-09 18:04:55,544 WARN L205 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:55,545 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:55,545 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:04:55,564 INFO L550 ElimStorePlain]: Start of recursive call 10: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:55,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:55,981 INFO L244 Elim1Store]: Index analysis took 303 ms [2021-07-09 18:04:56,695 WARN L205 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:04:56,695 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:04:56,696 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 37 treesize of output 80 [2021-07-09 18:04:56,704 INFO L550 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2021-07-09 18:04:56,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:56,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:56,846 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:56,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:56,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:57,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:57,109 INFO L244 Elim1Store]: Index analysis took 305 ms [2021-07-09 18:04:58,243 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:58,244 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:58,244 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-07-09 18:04:58,265 INFO L550 ElimStorePlain]: Start of recursive call 12: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:58,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,386 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:58,650 INFO L244 Elim1Store]: Index analysis took 278 ms [2021-07-09 18:04:59,610 WARN L205 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:04:59,611 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:04:59,611 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:04:59,622 INFO L550 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 2 xjuncts. [2021-07-09 18:04:59,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:59,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:59,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:59,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:59,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:04:59,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,007 INFO L244 Elim1Store]: Index analysis took 268 ms [2021-07-09 18:05:00,559 WARN L205 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:00,560 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:00,560 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-07-09 18:05:00,564 INFO L550 ElimStorePlain]: Start of recursive call 14: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:00,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,778 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:00,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,003 INFO L244 Elim1Store]: Index analysis took 326 ms [2021-07-09 18:05:01,770 WARN L205 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:05:01,770 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:05:01,770 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 80 [2021-07-09 18:05:01,777 INFO L550 ElimStorePlain]: Start of recursive call 15: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:01,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:01,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,232 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,232 INFO L244 Elim1Store]: Index analysis took 344 ms [2021-07-09 18:05:02,748 WARN L205 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:02,749 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:02,749 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 66 [2021-07-09 18:05:02,754 INFO L550 ElimStorePlain]: Start of recursive call 16: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:02,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,944 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:02,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:03,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:03,228 INFO L244 Elim1Store]: Index analysis took 353 ms [2021-07-09 18:05:04,424 WARN L205 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:04,424 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:04,424 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:04,453 INFO L550 ElimStorePlain]: Start of recursive call 17: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:04,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:04,879 INFO L244 Elim1Store]: Index analysis took 304 ms [2021-07-09 18:05:05,715 WARN L205 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:05:05,715 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:05:05,715 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 41 treesize of output 80 [2021-07-09 18:05:05,729 INFO L550 ElimStorePlain]: Start of recursive call 18: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:05,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:05,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:05,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:05,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:05,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:06,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:06,297 INFO L244 Elim1Store]: Index analysis took 445 ms [2021-07-09 18:05:07,368 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:07,368 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:07,370 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:07,407 INFO L550 ElimStorePlain]: Start of recursive call 19: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:07,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,578 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:07,886 INFO L244 Elim1Store]: Index analysis took 350 ms [2021-07-09 18:05:08,851 WARN L205 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:08,851 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:08,851 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:05:08,868 INFO L550 ElimStorePlain]: Start of recursive call 20: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:09,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:09,336 INFO L244 Elim1Store]: Index analysis took 325 ms [2021-07-09 18:05:10,376 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:10,376 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:10,376 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:05:10,396 INFO L550 ElimStorePlain]: Start of recursive call 21: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:10,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:10,919 INFO L244 Elim1Store]: Index analysis took 372 ms [2021-07-09 18:05:12,022 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:12,022 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:12,022 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:12,045 INFO L550 ElimStorePlain]: Start of recursive call 22: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:12,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:12,493 INFO L244 Elim1Store]: Index analysis took 312 ms [2021-07-09 18:05:13,232 WARN L205 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:13,232 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:13,233 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 72 [2021-07-09 18:05:13,236 INFO L550 ElimStorePlain]: Start of recursive call 23: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:13,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:13,740 INFO L244 Elim1Store]: Index analysis took 363 ms [2021-07-09 18:05:14,330 WARN L205 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:14,330 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:14,331 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 68 [2021-07-09 18:05:14,335 INFO L550 ElimStorePlain]: Start of recursive call 24: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:14,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:14,824 INFO L244 Elim1Store]: Index analysis took 353 ms [2021-07-09 18:05:15,972 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:15,972 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:15,973 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-07-09 18:05:15,982 INFO L550 ElimStorePlain]: Start of recursive call 25: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:16,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,214 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:16,464 INFO L244 Elim1Store]: Index analysis took 336 ms [2021-07-09 18:05:17,096 WARN L205 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:17,096 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:17,096 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 68 [2021-07-09 18:05:17,101 INFO L550 ElimStorePlain]: Start of recursive call 26: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:17,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:17,738 INFO L244 Elim1Store]: Index analysis took 480 ms [2021-07-09 18:05:19,341 WARN L205 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:19,342 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:19,342 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:19,363 INFO L550 ElimStorePlain]: Start of recursive call 27: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:19,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,581 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,590 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,615 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:19,903 INFO L244 Elim1Store]: Index analysis took 359 ms [2021-07-09 18:05:21,041 WARN L205 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:21,041 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:21,041 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 92 [2021-07-09 18:05:21,050 INFO L550 ElimStorePlain]: Start of recursive call 28: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:21,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:21,525 INFO L244 Elim1Store]: Index analysis took 326 ms [2021-07-09 18:05:22,171 WARN L205 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:22,171 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:22,171 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 70 [2021-07-09 18:05:22,180 INFO L550 ElimStorePlain]: Start of recursive call 29: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:22,350 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,407 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:22,696 INFO L244 Elim1Store]: Index analysis took 354 ms [2021-07-09 18:05:23,756 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 39 DAG size of output: 31 [2021-07-09 18:05:23,756 INFO L354 Elim1Store]: treesize reduction 36, result has 59.1 percent of original size [2021-07-09 18:05:23,756 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 8 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 6 case distinctions, treesize of input 39 treesize of output 80 [2021-07-09 18:05:23,769 INFO L550 ElimStorePlain]: Start of recursive call 30: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:23,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:23,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:24,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:24,251 INFO L244 Elim1Store]: Index analysis took 326 ms [2021-07-09 18:05:24,817 WARN L205 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:24,817 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:24,817 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 68 [2021-07-09 18:05:24,821 INFO L550 ElimStorePlain]: Start of recursive call 31: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:24,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:24,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:25,348 INFO L244 Elim1Store]: Index analysis took 369 ms [2021-07-09 18:05:26,496 WARN L205 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:26,497 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:26,497 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-07-09 18:05:26,512 INFO L550 ElimStorePlain]: Start of recursive call 32: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:26,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:26,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:27,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:27,008 INFO L244 Elim1Store]: Index analysis took 332 ms [2021-07-09 18:05:27,713 WARN L205 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:27,713 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:27,714 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 68 [2021-07-09 18:05:27,719 INFO L550 ElimStorePlain]: Start of recursive call 33: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:27,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:27,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:27,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:27,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:28,209 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:28,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:28,474 INFO L244 Elim1Store]: Index analysis took 585 ms [2021-07-09 18:05:29,730 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:29,731 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:29,731 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:29,749 INFO L550 ElimStorePlain]: Start of recursive call 34: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:29,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:29,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:29,955 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:29,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:29,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:29,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:30,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:30,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:30,304 INFO L244 Elim1Store]: Index analysis took 379 ms [2021-07-09 18:05:30,916 WARN L205 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:30,917 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:30,917 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 37 treesize of output 66 [2021-07-09 18:05:30,923 INFO L550 ElimStorePlain]: Start of recursive call 35: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:31,101 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,109 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,117 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:31,434 INFO L244 Elim1Store]: Index analysis took 342 ms [2021-07-09 18:05:32,479 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:32,479 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:32,479 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 43 treesize of output 70 [2021-07-09 18:05:32,489 INFO L550 ElimStorePlain]: Start of recursive call 36: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:32,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:32,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:32,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:32,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:32,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:32,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:33,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:33,085 INFO L244 Elim1Store]: Index analysis took 385 ms [2021-07-09 18:05:34,607 WARN L205 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:34,607 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:34,608 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 92 [2021-07-09 18:05:34,626 INFO L550 ElimStorePlain]: Start of recursive call 37: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:34,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:34,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:34,870 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:34,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:34,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:34,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:35,197 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:35,212 INFO L244 Elim1Store]: Index analysis took 393 ms [2021-07-09 18:05:36,644 WARN L205 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:36,645 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:36,648 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 37 treesize of output 90 [2021-07-09 18:05:36,674 INFO L550 ElimStorePlain]: Start of recursive call 38: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:36,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,915 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:36,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:37,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:37,242 INFO L244 Elim1Store]: Index analysis took 379 ms [2021-07-09 18:05:38,064 WARN L205 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:38,064 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:38,064 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 66 [2021-07-09 18:05:38,070 INFO L550 ElimStorePlain]: Start of recursive call 39: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:38,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,361 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:38,644 INFO L244 Elim1Store]: Index analysis took 370 ms [2021-07-09 18:05:39,313 WARN L205 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:39,314 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:39,314 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 35 treesize of output 68 [2021-07-09 18:05:39,318 INFO L550 ElimStorePlain]: Start of recursive call 40: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:39,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:39,922 INFO L244 Elim1Store]: Index analysis took 400 ms [2021-07-09 18:05:40,717 WARN L205 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:40,717 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:40,717 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 39 treesize of output 68 [2021-07-09 18:05:40,722 INFO L550 ElimStorePlain]: Start of recursive call 41: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:40,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:40,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:40,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:41,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:41,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:41,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:41,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:41,292 INFO L244 Elim1Store]: Index analysis took 371 ms [2021-07-09 18:05:42,954 WARN L205 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:42,954 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:42,955 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:05:42,968 INFO L550 ElimStorePlain]: Start of recursive call 42: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:43,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,231 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,279 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:43,596 INFO L244 Elim1Store]: Index analysis took 383 ms [2021-07-09 18:05:45,550 WARN L205 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:45,550 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:45,551 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:05:45,563 INFO L550 ElimStorePlain]: Start of recursive call 43: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:45,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,781 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,842 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,851 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:45,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:46,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:46,157 INFO L244 Elim1Store]: Index analysis took 393 ms [2021-07-09 18:05:46,983 WARN L205 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:46,983 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:46,983 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 45 treesize of output 72 [2021-07-09 18:05:46,989 INFO L550 ElimStorePlain]: Start of recursive call 44: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:47,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:47,569 INFO L244 Elim1Store]: Index analysis took 384 ms [2021-07-09 18:05:49,357 WARN L205 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:49,357 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:49,358 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:05:49,384 INFO L550 ElimStorePlain]: Start of recursive call 45: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:49,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:49,980 INFO L244 Elim1Store]: Index analysis took 386 ms [2021-07-09 18:05:51,394 WARN L205 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:51,395 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:51,395 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 45 treesize of output 96 [2021-07-09 18:05:51,420 INFO L550 ElimStorePlain]: Start of recursive call 46: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:51,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:51,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:51,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:51,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:52,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:52,067 INFO L244 Elim1Store]: Index analysis took 432 ms [2021-07-09 18:05:53,913 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:53,913 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:53,913 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:05:53,935 INFO L550 ElimStorePlain]: Start of recursive call 47: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:54,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,187 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,216 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,229 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:54,574 INFO L244 Elim1Store]: Index analysis took 407 ms [2021-07-09 18:05:55,281 WARN L205 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 22 [2021-07-09 18:05:55,281 INFO L354 Elim1Store]: treesize reduction 24, result has 59.3 percent of original size [2021-07-09 18:05:55,281 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 9 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 68 [2021-07-09 18:05:55,286 INFO L550 ElimStorePlain]: Start of recursive call 48: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:55,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,573 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:55,915 INFO L244 Elim1Store]: Index analysis took 404 ms [2021-07-09 18:05:57,303 WARN L205 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:57,303 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:57,303 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 39 treesize of output 92 [2021-07-09 18:05:57,315 INFO L550 ElimStorePlain]: Start of recursive call 49: End of recursive call: and 1 xjuncts. [2021-07-09 18:05:57,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:57,951 INFO L244 Elim1Store]: Index analysis took 419 ms [2021-07-09 18:05:59,178 WARN L205 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:05:59,179 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:05:59,179 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 43 treesize of output 94 [2021-07-09 18:05:59,202 INFO L550 ElimStorePlain]: Start of recursive call 50: End of recursive call: and 2 xjuncts. [2021-07-09 18:05:59,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-07-09 18:05:59,576 INFO L244 Elim1Store]: Index analysis took 148 ms [2021-07-09 18:06:01,417 WARN L205 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2021-07-09 18:06:01,418 INFO L354 Elim1Store]: treesize reduction 48, result has 59.0 percent of original size [2021-07-09 18:06:01,418 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 6 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 41 treesize of output 94 [2021-07-09 18:06:01,428 INFO L550 ElimStorePlain]: Start of recursive call 51: End of recursive call: and 1 xjuncts. [2021-07-09 18:09:08,709 WARN L205 SmtUtils]: Spent 3.12 m on a formula simplification. DAG size of input: 2294 DAG size of output: 1777 [2021-07-09 18:09:08,712 INFO L628 ElimStorePlain]: treesize reduction 4463, result has 63.5 percent of original size [2021-07-09 18:09:15,675 INFO L550 ElimStorePlain]: Start of recursive call 1: 151 dim-0 vars, 1 dim-1 vars, End of recursive call: 175 dim-0 vars, and 50 xjuncts. [2021-07-09 18:09:15,676 INFO L247 ElimStorePlain]: Needed 51 recursive calls to eliminate 152 variables, input treesize:3447, output treesize:8680 [2021-07-09 18:09:15,783 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 2316 DAG size of output: 2316 [2021-07-09 18:10:58,214 WARN L227 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2021-07-09 18:10:58,215 WARN L348 FreeRefinementEngine]: Global settings require throwing the following exception [2021-07-09 18:10:58,426 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable880 [2021-07-09 18:10:58,426 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:258) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.Util.checkSat(Util.java:61) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.getRedundancy(SimplifyDDA.java:626) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getRedundancy(SimplifyDDAWithTimeout.java:120) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA$Simplifier.walk(SimplifyDDA.java:371) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.simplification.SimplifyDDA.simplifyOnce(SimplifyDDA.java:650) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.simplify.SimplifyDDAWithTimeout.getSimplifiedTerm(SimplifyDDAWithTimeout.java:180) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:173) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:140) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:582) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:440) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:201) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:299) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:297) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:190) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:180) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:597) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:374) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:69) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:63) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:293) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:238) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:167) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1461) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:654) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:238) ... 53 more [2021-07-09 18:10:58,431 INFO L168 Benchmark]: Toolchain (without parser) took 777910.27 ms. Allocated memory was 219.2 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 199.8 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-07-09 18:10:58,431 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 200.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 18:10:58,431 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.80 ms. Allocated memory is still 219.2 MB. Free memory was 199.7 MB in the beginning and 198.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 18:10:58,431 INFO L168 Benchmark]: Boogie Preprocessor took 13.51 ms. Allocated memory is still 219.2 MB. Free memory was 198.2 MB in the beginning and 197.3 MB in the end (delta: 917.5 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 18:10:58,431 INFO L168 Benchmark]: RCFGBuilder took 265.67 ms. Allocated memory is still 219.2 MB. Free memory was 197.1 MB in the beginning and 183.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. [2021-07-09 18:10:58,431 INFO L168 Benchmark]: TraceAbstraction took 777601.91 ms. Allocated memory was 219.2 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 182.7 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. [2021-07-09 18:10:58,432 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 219.2 MB. Free memory is still 200.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.80 ms. Allocated memory is still 219.2 MB. Free memory was 199.7 MB in the beginning and 198.3 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.51 ms. Allocated memory is still 219.2 MB. Free memory was 198.2 MB in the beginning and 197.3 MB in the end (delta: 917.5 kB). There was no memory consumed. Max. memory is 8.0 GB. * RCFGBuilder took 265.67 ms. Allocated memory is still 219.2 MB. Free memory was 197.1 MB in the beginning and 183.2 MB in the end (delta: 13.8 MB). Peak memory consumption was 13.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 777601.91 ms. Allocated memory was 219.2 MB in the beginning and 5.7 GB in the end (delta: 5.5 GB). Free memory was 182.7 MB in the beginning and 2.8 GB in the end (delta: -2.6 GB). Peak memory consumption was 2.9 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:241) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...