/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/09-regions_17-arrayloop_nr.line663.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 19:47:32,107 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 19:47:32,108 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 19:47:32,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-29 19:47:32,130 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 19:47:32,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 19:47:32,136 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 19:47:32,137 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 19:47:32,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 19:47:32,138 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 19:47:32,139 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 19:47:32,140 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 19:47:32,141 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 19:47:32,142 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 19:47:32,143 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 19:47:32,143 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 19:47:32,145 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 19:47:32,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 19:47:32,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 19:47:32,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 19:47:32,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 19:47:32,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 19:47:32,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 19:47:32,164 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 19:47:32,164 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 19:47:32,164 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 19:47:32,165 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 19:47:32,165 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 19:47:32,165 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 19:47:32,166 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 19:47:32,166 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 19:47:32,167 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 19:47:32,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 19:47:32,168 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 19:47:32,168 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 19:47:32,168 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 19:47:32,168 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 19:47:32,168 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 19:47:32,307 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 19:47:32,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 19:47:32,332 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 19:47:32,332 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 19:47:32,333 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 19:47:32,334 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/09-regions_17-arrayloop_nr.line663.bpl [2022-09-29 19:47:32,335 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/09-regions_17-arrayloop_nr.line663.bpl' [2022-09-29 19:47:32,383 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 19:47:32,384 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 19:47:32,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 19:47:32,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 19:47:32,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 19:47:32,396 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,423 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,453 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 19:47:32,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 19:47:32,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 19:47:32,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 19:47:32,479 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/1) ... [2022-09-29 19:47:32,488 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 19:47:32,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:47:32,505 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-29 19:47:32,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-29 19:47:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2022-09-29 19:47:32,533 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2022-09-29 19:47:32,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 19:47:32,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 19:47:32,534 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 19:47:32,670 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 19:47:32,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 19:47:33,042 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 19:47:33,053 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 19:47:33,053 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-09-29 19:47:33,055 INFO L202 PluginConnector]: Adding new model 09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 07:47:33 BoogieIcfgContainer [2022-09-29 19:47:33,055 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 19:47:33,057 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 19:47:33,057 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 19:47:33,060 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 19:47:33,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 07:47:32" (1/2) ... [2022-09-29 19:47:33,061 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@445ae2b7 and model type 09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 07:47:33, skipping insertion in model container [2022-09-29 19:47:33,061 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "09-regions_17-arrayloop_nr.line663.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 07:47:33" (2/2) ... [2022-09-29 19:47:33,062 INFO L112 eAbstractionObserver]: Analyzing ICFG 09-regions_17-arrayloop_nr.line663.bpl [2022-09-29 19:47:33,068 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 19:47:33,074 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 19:47:33,074 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 19:47:33,075 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 19:47:33,146 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-09-29 19:47:33,179 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 19:47:33,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 19:47:33,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:47:33,191 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-09-29 19:47:33,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-09-29 19:47:33,226 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 19:47:33,235 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 19:47:33,246 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@31518a3e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 19:47:33,246 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 19:47:33,378 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:33,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:33,381 INFO L85 PathProgramCache]: Analyzing trace with hash -2051223853, now seen corresponding path program 1 times [2022-09-29 19:47:33,387 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:33,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745865256] [2022-09-29 19:47:33,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:33,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:33,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:33,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:47:33,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:33,580 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745865256] [2022-09-29 19:47:33,581 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745865256] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:47:33,581 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 19:47:33,581 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 19:47:33,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262865055] [2022-09-29 19:47:33,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:47:33,589 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 19:47:33,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:33,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 19:47:33,611 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 19:47:33,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,615 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:33,616 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 55.0) internal successors, (110), 2 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:33,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 19:47:33,653 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:33,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:33,653 INFO L85 PathProgramCache]: Analyzing trace with hash -918033260, now seen corresponding path program 1 times [2022-09-29 19:47:33,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:33,654 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299706123] [2022-09-29 19:47:33,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:33,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:33,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:33,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:47:33,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:33,803 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299706123] [2022-09-29 19:47:33,803 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299706123] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:47:33,803 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 19:47:33,803 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-29 19:47:33,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100168795] [2022-09-29 19:47:33,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:47:33,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-29 19:47:33,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:33,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-29 19:47:33,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-29 19:47:33,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:33,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:33,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:33,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 19:47:33,876 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:33,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:33,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1893786828, now seen corresponding path program 1 times [2022-09-29 19:47:33,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:33,877 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022513488] [2022-09-29 19:47:33,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:33,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:33,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:34,074 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:47:34,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:34,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022513488] [2022-09-29 19:47:34,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022513488] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:47:34,075 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1410293110] [2022-09-29 19:47:34,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:34,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:47:34,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:47:34,091 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 19:47:34,092 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-29 19:47:34,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:34,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 401 conjuncts, 4 conjunts are in the unsatisfiable core [2022-09-29 19:47:34,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:47:34,303 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:47:34,304 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 19:47:34,389 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 19:47:34,390 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1410293110] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 19:47:34,390 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 19:47:34,390 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-09-29 19:47:34,390 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095331183] [2022-09-29 19:47:34,390 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 19:47:34,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 19:47:34,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:34,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 19:47:34,392 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-09-29 19:47:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,392 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:34,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.1) internal successors, (271), 10 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:34,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:34,393 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:34,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:34,568 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-29 19:47:34,746 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-09-29 19:47:34,746 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:34,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:34,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1527400652, now seen corresponding path program 2 times [2022-09-29 19:47:34,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:34,747 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1375095522] [2022-09-29 19:47:34,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:34,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:34,916 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 162 trivial. 0 not checked. [2022-09-29 19:47:34,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:34,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1375095522] [2022-09-29 19:47:34,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1375095522] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 19:47:34,918 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 19:47:34,918 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 19:47:34,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342738380] [2022-09-29 19:47:34,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 19:47:34,922 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-29 19:47:34,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:34,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-29 19:47:34,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-09-29 19:47:34,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,928 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:34,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 32.6) internal successors, (163), 6 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:34,928 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:34,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:34,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:34,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:37,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:37,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 19:47:37,123 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:37,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:37,124 INFO L85 PathProgramCache]: Analyzing trace with hash 2067326260, now seen corresponding path program 1 times [2022-09-29 19:47:37,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:37,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112986605] [2022-09-29 19:47:37,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:37,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:38,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:43,100 INFO L134 CoverageAnalysis]: Checked inductivity of 51288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:43,100 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:43,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112986605] [2022-09-29 19:47:43,101 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112986605] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:47:43,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [219175678] [2022-09-29 19:47:43,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:43,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:47:43,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:47:43,122 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 19:47:43,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-29 19:47:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:44,998 INFO L263 TraceCheckSpWp]: Trace formula consists of 12828 conjuncts, 8 conjunts are in the unsatisfiable core [2022-09-29 19:47:45,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:47:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 51288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:45,407 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 19:47:45,699 INFO L134 CoverageAnalysis]: Checked inductivity of 51288 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:45,699 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [219175678] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 19:47:45,699 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 19:47:45,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-09-29 19:47:45,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1772554938] [2022-09-29 19:47:45,733 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 19:47:45,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-09-29 19:47:45,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:45,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-09-29 19:47:45,739 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-09-29 19:47:45,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:45,742 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:45,742 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 37.5) internal successors, (675), 18 states have internal predecessors, (675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:45,742 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:45,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:45,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:45,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:45,743 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:47,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:47,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 19:47:47,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-29 19:47:47,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:47:47,528 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:47,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:47,529 INFO L85 PathProgramCache]: Analyzing trace with hash 856927540, now seen corresponding path program 2 times [2022-09-29 19:47:47,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:47,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358580525] [2022-09-29 19:47:47,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:47,529 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:48,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:47:52,600 INFO L134 CoverageAnalysis]: Checked inductivity of 52246 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:52,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:47:52,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358580525] [2022-09-29 19:47:52,600 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [358580525] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:47:52,603 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [787826251] [2022-09-29 19:47:52,603 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 19:47:52,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:47:52,604 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:47:52,605 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 19:47:52,606 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-29 19:47:54,628 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-09-29 19:47:54,628 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 19:47:54,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 13428 conjuncts, 16 conjunts are in the unsatisfiable core [2022-09-29 19:47:54,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:47:55,230 INFO L134 CoverageAnalysis]: Checked inductivity of 52246 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:55,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 19:47:55,797 INFO L134 CoverageAnalysis]: Checked inductivity of 52246 backedges. 0 proven. 1120 refuted. 0 times theorem prover too weak. 51126 trivial. 0 not checked. [2022-09-29 19:47:55,798 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [787826251] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 19:47:55,798 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 19:47:55,799 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 23 [2022-09-29 19:47:55,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544923740] [2022-09-29 19:47:55,799 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 19:47:55,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-09-29 19:47:55,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:47:55,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-09-29 19:47:55,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2022-09-29 19:47:55,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:55,808 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:47:55,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 36.26086956521739) internal successors, (834), 23 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:47:55,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:55,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:55,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:55,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:55,809 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 19:47:55,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 19:47:57,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 19:47:57,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-29 19:47:57,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:47:57,523 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:47:57,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:47:57,524 INFO L85 PathProgramCache]: Analyzing trace with hash -2105456684, now seen corresponding path program 3 times [2022-09-29 19:47:57,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:47:57,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959938226] [2022-09-29 19:47:57,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:47:57,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:47:58,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 19:48:06,292 INFO L134 CoverageAnalysis]: Checked inductivity of 53521 backedges. 32596 proven. 18530 refuted. 0 times theorem prover too weak. 2395 trivial. 0 not checked. [2022-09-29 19:48:06,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 19:48:06,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959938226] [2022-09-29 19:48:06,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [959938226] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 19:48:06,296 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109264442] [2022-09-29 19:48:06,298 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-09-29 19:48:06,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:48:06,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 19:48:06,315 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 19:48:06,356 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 19:51:25,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-09-29 19:51:25,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 19:51:26,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 3090 conjuncts, 63 conjunts are in the unsatisfiable core [2022-09-29 19:51:26,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 19:51:26,280 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-29 19:51:26,536 INFO L356 Elim1Store]: treesize reduction 21, result has 47.5 percent of original size [2022-09-29 19:51:26,536 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 27 treesize of output 34 [2022-09-29 19:51:26,936 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-09-29 19:51:27,428 INFO L356 Elim1Store]: treesize reduction 34, result has 26.1 percent of original size [2022-09-29 19:51:27,428 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 1 case distinctions, treesize of input 36 treesize of output 35 [2022-09-29 19:51:27,886 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 27 [2022-09-29 19:51:27,897 INFO L356 Elim1Store]: treesize reduction 13, result has 7.1 percent of original size [2022-09-29 19:51:27,897 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable 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 41 treesize of output 28 [2022-09-29 19:51:28,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 12 [2022-09-29 19:51:28,227 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 28 treesize of output 27 [2022-09-29 19:51:28,397 INFO L134 CoverageAnalysis]: Checked inductivity of 53521 backedges. 14640 proven. 201 refuted. 0 times theorem prover too weak. 38680 trivial. 0 not checked. [2022-09-29 19:51:28,398 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 19:51:28,762 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 17 [2022-09-29 19:53:14,233 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_8017 Int)) (not (= (store |c_ULTIMATE.start_#PthreadsMutexLock_old_#pthreadsMutex#1| |c_ULTIMATE.start_#PthreadsMutexLock_#inputPtr#1.base| (store (select |c_ULTIMATE.start_#PthreadsMutexLock_old_#pthreadsMutex#1| |c_ULTIMATE.start_#PthreadsMutexLock_#inputPtr#1.base|) |c_ULTIMATE.start_#PthreadsMutexLock_#inputPtr#1.offset| 1)) (store |c_#pthreadsMutex| |c_~#mutex~0.base| (store (select |c_#pthreadsMutex| |c_~#mutex~0.base|) (+ |c_~#mutex~0.offset| (* |c_t_funThread1of1ForFork0_~i~0#1| 24) 24) v_ArrVal_8017))))) (= (* |c_ULTIMATE.start_main_~j~0#1| 24) (+ (* |c_t_funThread1of1ForFork0_~i~0#1| 24) 24))) is different from false [2022-09-29 19:53:14,242 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 19:53:14,242 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 32 treesize of output 42 [2022-09-29 19:53:31,027 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 16 [2022-09-29 19:53:31,074 INFO L134 CoverageAnalysis]: Checked inductivity of 53521 backedges. 14636 proven. 202 refuted. 2 times theorem prover too weak. 38680 trivial. 1 not checked. [2022-09-29 19:53:31,075 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109264442] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 19:53:31,075 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 19:53:31,076 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 23, 23] total 118 [2022-09-29 19:53:31,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143548418] [2022-09-29 19:53:31,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 19:53:31,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-09-29 19:53:31,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 19:53:31,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-09-29 19:53:31,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1070, Invalid=12411, Unknown=95, NotChecked=230, Total=13806 [2022-09-29 19:53:31,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:53:31,089 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 19:53:31,093 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 49.50847457627118) internal successors, (5842), 118 states have internal predecessors, (5842), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 19:53:31,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:53:31,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:53:31,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:53:31,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:53:31,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 19:53:31,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 19:53:31,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:53:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 19:53:58,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-29 19:53:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:53:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 19:53:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 19:53:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 19:53:58,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-09-29 19:53:58,235 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-09-29 19:53:58,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 19:53:58,383 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 19:53:58,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 19:53:58,385 INFO L85 PathProgramCache]: Analyzing trace with hash 100606068, now seen corresponding path program 4 times [2022-09-29 19:53:58,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 19:53:58,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651977054] [2022-09-29 19:53:58,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 19:53:58,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 19:54:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat