/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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 15:48:32,354 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 15:48:32,355 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 15:48:32,399 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-19 15:48:32,462 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-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-02-19 15:48:32,481 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 15:48:32,481 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 15:48:32,481 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 15:48:32,481 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 15:48:32,482 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 15:48:32,482 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 15:48:32,482 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 15:48:32,482 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 15:48:32,483 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 15:48:32,483 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 15:48:32,483 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 15:48:32,483 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 15:48:32,486 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 15:48:32,487 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 15:48:32,487 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 15:48:32,487 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 15:48:32,487 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 15:48:32,488 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 15:48:32,488 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 15:48:32,488 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 15:48:32,488 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 15:48:32,489 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 15:48:32,490 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 15:48:32,490 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 15:48:32,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 15:48:32,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 15:48:32,662 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 15:48:32,663 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 15:48:32,664 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 15:48:32,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl [2022-02-19 15:48:32,665 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2.wvr.bpl' [2022-02-19 15:48:32,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 15:48:32,694 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 15:48:32,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 15:48:32,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 15:48:32,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 15:48:32,703 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,707 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,712 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 15:48:32,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 15:48:32,714 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 15:48:32,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 15:48:32,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 15:48:32,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,724 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,725 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 15:48:32,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 15:48:32,726 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 15:48:32,726 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 15:48:32,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/1) ... [2022-02-19 15:48:32,731 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 15:48:32,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:48:32,749 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) [2022-02-19 15:48:32,752 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 [2022-02-19 15:48:32,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 15:48:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 15:48:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 15:48:32,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 15:48:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 15:48:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 15:48:32,781 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 15:48:32,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 15:48:32,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 15:48:32,782 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 15:48:32,814 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 15:48:32,815 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 15:48:32,881 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 15:48:32,885 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 15:48:32,886 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 15:48:32,887 INFO L202 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 03:48:32 BoogieIcfgContainer [2022-02-19 15:48:32,887 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 15:48:32,888 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 15:48:32,888 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 15:48:32,890 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 15:48:32,891 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:48:32" (1/2) ... [2022-02-19 15:48:32,903 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d1c6b8d and model type misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 03:48:32, skipping insertion in model container [2022-02-19 15:48:32,903 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 03:48:32" (2/2) ... [2022-02-19 15:48:32,904 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2.wvr.bpl [2022-02-19 15:48:32,907 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 15:48:32,907 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 15:48:32,908 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 15:48:32,908 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 15:48:32,946 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 15:48:32,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 15:48:32,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:48:32,975 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) [2022-02-19 15:48:32,976 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 [2022-02-19 15:48:33,017 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 15:48:33,022 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-02-19 15:48:33,022 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 15:48:33,237 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8962 transitions and produced 4918 states. [2022-02-19 15:48:33,239 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:48:33,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:48:33,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1865866354, now seen corresponding path program 1 times [2022-02-19 15:48:33,255 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:48:33,256 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569772124] [2022-02-19 15:48:33,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:48:33,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:48:33,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:48:33,645 INFO L134 CoverageAnalysis]: Checked inductivity of 24290 backedges. 670 proven. 0 refuted. 0 times theorem prover too weak. 23620 trivial. 0 not checked. [2022-02-19 15:48:33,646 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:48:33,646 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569772124] [2022-02-19 15:48:33,647 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569772124] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 15:48:33,647 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 15:48:33,647 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-19 15:48:33,648 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181974316] [2022-02-19 15:48:33,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 15:48:33,658 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 15:48:33,658 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:48:33,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 15:48:33,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-19 15:48:33,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:33,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:48:33,702 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 4 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:48:33,702 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:33,812 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4981 transitions and produced 2733 states. [2022-02-19 15:48:33,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:33,813 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 15:48:33,813 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:48:33,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:48:33,815 INFO L85 PathProgramCache]: Analyzing trace with hash -947133492, now seen corresponding path program 2 times [2022-02-19 15:48:33,816 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:48:33,816 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128272849] [2022-02-19 15:48:33,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:48:33,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:48:33,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:48:33,974 INFO L134 CoverageAnalysis]: Checked inductivity of 6280 backedges. 3086 proven. 0 refuted. 0 times theorem prover too weak. 3194 trivial. 0 not checked. [2022-02-19 15:48:33,974 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:48:33,974 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128272849] [2022-02-19 15:48:33,974 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128272849] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 15:48:33,974 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 15:48:33,975 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-19 15:48:33,975 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1510890864] [2022-02-19 15:48:33,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 15:48:33,976 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-19 15:48:33,976 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:48:33,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-19 15:48:33,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-19 15:48:33,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:33,977 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:48:33,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 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) [2022-02-19 15:48:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:33,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:34,038 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2624 transitions and produced 1869 states. [2022-02-19 15:48:34,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:34,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:34,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 15:48:34,039 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:48:34,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:48:34,040 INFO L85 PathProgramCache]: Analyzing trace with hash 2005741279, now seen corresponding path program 3 times [2022-02-19 15:48:34,040 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:48:34,041 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058834364] [2022-02-19 15:48:34,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:48:34,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:48:34,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:48:36,399 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 467 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-19 15:48:36,400 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:48:36,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058834364] [2022-02-19 15:48:36,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058834364] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:48:36,400 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1063237747] [2022-02-19 15:48:36,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 15:48:36,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:48:36,401 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:48:36,402 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) [2022-02-19 15:48:36,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 15:48:36,553 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 56 check-sat command(s) [2022-02-19 15:48:36,553 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:48:36,574 INFO L263 TraceCheckSpWp]: Trace formula consists of 649 conjuncts, 92 conjunts are in the unsatisfiable core [2022-02-19 15:48:36,585 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:48:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 467 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-19 15:48:37,491 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:48:42,135 INFO L134 CoverageAnalysis]: Checked inductivity of 13531 backedges. 13029 proven. 502 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:48:42,136 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1063237747] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:48:42,136 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:48:42,136 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [73, 73, 90] total 162 [2022-02-19 15:48:42,136 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836274043] [2022-02-19 15:48:42,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:48:42,138 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 163 states [2022-02-19 15:48:42,138 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:48:42,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 163 interpolants. [2022-02-19 15:48:42,149 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11962, Invalid=14444, Unknown=0, NotChecked=0, Total=26406 [2022-02-19 15:48:42,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:42,149 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:48:42,150 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 163 states, 163 states have (on average 5.404907975460123) internal successors, (881), 162 states have internal predecessors, (881), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:48:42,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:42,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:42,150 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:48:56,824 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2540 transitions and produced 2077 states. [2022-02-19 15:48:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:48:56,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-02-19 15:48:56,883 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 15:48:57,053 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-19 15:48:57,054 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:48:57,054 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:48:57,055 INFO L85 PathProgramCache]: Analyzing trace with hash 1398206508, now seen corresponding path program 4 times [2022-02-19 15:48:57,055 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:48:57,055 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29626562] [2022-02-19 15:48:57,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:48:57,055 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:48:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:49:05,059 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 27556 proven. 10609 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:49:05,060 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:49:05,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29626562] [2022-02-19 15:49:05,060 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29626562] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:49:05,060 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [104337370] [2022-02-19 15:49:05,060 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 15:49:05,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:49:05,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:49:05,061 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) [2022-02-19 15:49:05,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 15:49:05,226 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 15:49:05,227 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:49:05,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-19 15:49:05,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:49:06,726 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 23692 proven. 10609 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-02-19 15:49:06,727 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:49:13,252 INFO L134 CoverageAnalysis]: Checked inductivity of 38165 backedges. 23692 proven. 10609 refuted. 0 times theorem prover too weak. 3864 trivial. 0 not checked. [2022-02-19 15:49:13,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [104337370] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:49:13,253 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:49:13,253 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [182, 141, 141] total 252 [2022-02-19 15:49:13,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036728056] [2022-02-19 15:49:13,253 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:49:13,257 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-02-19 15:49:13,257 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:49:13,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-02-19 15:49:13,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16338, Invalid=47418, Unknown=0, NotChecked=0, Total=63756 [2022-02-19 15:49:13,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:49:13,270 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:49:13,272 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 253 states have (on average 4.996047430830039) internal successors, (1264), 252 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:49:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 285 states. [2022-02-19 15:49:13,272 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:49:24,289 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 36064 transitions and produced 18299 states. [2022-02-19 15:49:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:49:24,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:49:24,308 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 15:49:24,507 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:49:24,508 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:49:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:49:24,508 INFO L85 PathProgramCache]: Analyzing trace with hash 272095966, now seen corresponding path program 5 times [2022-02-19 15:49:24,508 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:49:24,509 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608195790] [2022-02-19 15:49:24,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:49:24,510 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:49:24,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:49:34,881 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 42137 proven. 32157 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 15:49:34,882 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:49:34,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608195790] [2022-02-19 15:49:34,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608195790] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:49:34,882 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [216277850] [2022-02-19 15:49:34,882 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 15:49:34,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:49:34,882 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:49:34,883 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) [2022-02-19 15:49:34,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 15:49:35,366 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 117 check-sat command(s) [2022-02-19 15:49:35,367 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:49:35,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 1825 conjuncts, 242 conjunts are in the unsatisfiable core [2022-02-19 15:49:35,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:49:38,612 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 31720 proven. 42327 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2022-02-19 15:49:38,612 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:49:54,005 INFO L134 CoverageAnalysis]: Checked inductivity of 74326 backedges. 31720 proven. 42347 refuted. 0 times theorem prover too weak. 259 trivial. 0 not checked. [2022-02-19 15:49:54,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [216277850] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:49:54,005 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:49:54,006 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [243, 231, 241] total 386 [2022-02-19 15:49:54,006 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555786569] [2022-02-19 15:49:54,006 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:49:54,008 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 387 states [2022-02-19 15:49:54,008 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:49:54,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 387 interpolants. [2022-02-19 15:49:54,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41531, Invalid=107851, Unknown=0, NotChecked=0, Total=149382 [2022-02-19 15:49:54,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:49:54,022 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:49:54,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 387 states, 387 states have (on average 5.20671834625323) internal successors, (2015), 386 states have internal predecessors, (2015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:49:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:49:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:49:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:49:54,023 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:50:45,644 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3834 transitions and produced 2961 states. [2022-02-19 15:50:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:50:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:50:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:50:45,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:50:45,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2022-02-19 15:50:45,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-19 15:50:45,859 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:50:45,860 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:50:45,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:50:45,861 INFO L85 PathProgramCache]: Analyzing trace with hash 499864524, now seen corresponding path program 6 times [2022-02-19 15:50:45,861 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:50:45,864 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663602855] [2022-02-19 15:50:45,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:50:45,864 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:50:46,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:50:47,547 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 17808 refuted. 0 times theorem prover too weak. 59024 trivial. 0 not checked. [2022-02-19 15:50:47,548 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:50:47,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663602855] [2022-02-19 15:50:47,548 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [663602855] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:50:47,548 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [489782652] [2022-02-19 15:50:47,548 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 15:50:47,548 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:50:47,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:50:47,556 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) [2022-02-19 15:50:47,603 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 15:50:48,064 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 110 check-sat command(s) [2022-02-19 15:50:48,064 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:50:48,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 1860 conjuncts, 267 conjunts are in the unsatisfiable core [2022-02-19 15:50:48,103 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:50:53,473 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 38416 refuted. 0 times theorem prover too weak. 38416 trivial. 0 not checked. [2022-02-19 15:50:53,474 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:50:55,428 INFO L134 CoverageAnalysis]: Checked inductivity of 76832 backedges. 0 proven. 17551 refuted. 0 times theorem prover too weak. 59281 trivial. 0 not checked. [2022-02-19 15:50:55,429 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [489782652] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:50:55,429 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:50:55,429 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 134, 5] total 140 [2022-02-19 15:50:55,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1552380285] [2022-02-19 15:50:55,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:50:55,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-02-19 15:50:55,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:50:55,431 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-02-19 15:50:55,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=488, Invalid=19252, Unknown=0, NotChecked=0, Total=19740 [2022-02-19 15:50:55,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:50:55,433 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:50:55,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 4.964539007092198) internal successors, (700), 140 states have internal predecessors, (700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:50:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:50:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:50:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:50:55,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:50:55,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 326 states. [2022-02-19 15:50:55,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:51:19,287 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 36368 transitions and produced 19318 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 405 states. [2022-02-19 15:51:19,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2022-02-19 15:51:19,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 15:51:19,503 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:51:19,503 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:51:19,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:51:19,504 INFO L85 PathProgramCache]: Analyzing trace with hash 15775038, now seen corresponding path program 7 times [2022-02-19 15:51:19,504 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:51:19,504 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202694465] [2022-02-19 15:51:19,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:51:19,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:51:20,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:51:46,859 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44016 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 15:51:46,860 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:51:46,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202694465] [2022-02-19 15:51:46,860 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202694465] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:51:46,860 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021943139] [2022-02-19 15:51:46,860 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 15:51:46,860 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:51:46,860 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:51:46,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:51:46,863 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 15:51:47,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:51:47,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 2399 conjuncts, 342 conjunts are in the unsatisfiable core [2022-02-19 15:51:47,260 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:51:49,451 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44016 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 15:51:49,451 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:52:16,833 INFO L134 CoverageAnalysis]: Checked inductivity of 132964 backedges. 88916 proven. 44048 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:52:16,833 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021943139] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:52:16,833 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:52:16,834 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [325, 325, 341] total 593 [2022-02-19 15:52:16,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178492952] [2022-02-19 15:52:16,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:52:16,836 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 594 states [2022-02-19 15:52:16,836 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:52:16,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 594 interpolants. [2022-02-19 15:52:16,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99305, Invalid=252937, Unknown=0, NotChecked=0, Total=352242 [2022-02-19 15:52:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:52:16,868 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:52:16,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 594 states, 594 states have (on average 5.102693602693603) internal successors, (3031), 593 states have internal predecessors, (3031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 371 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 405 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2022-02-19 15:52:16,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:58:28,996 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 69771 transitions and produced 33711 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 374 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 212 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 407 states. [2022-02-19 15:58:28,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 204 states. [2022-02-19 15:58:28,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 666 states. [2022-02-19 15:58:29,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 15:58:29,217 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:58:29,217 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 15:58:29,217 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:58:29,218 INFO L85 PathProgramCache]: Analyzing trace with hash -818824028, now seen corresponding path program 8 times [2022-02-19 15:58:29,218 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:58:29,218 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1244147970] [2022-02-19 15:58:29,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:58:29,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:58:31,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:59:08,708 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120738 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 15:59:08,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:59:08,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1244147970] [2022-02-19 15:59:08,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1244147970] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:59:08,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698597534] [2022-02-19 15:59:08,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 15:59:08,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:59:08,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:59:08,710 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:59:08,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 15:59:09,275 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 15:59:09,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:59:09,342 INFO L263 TraceCheckSpWp]: Trace formula consists of 3463 conjuncts, 494 conjunts are in the unsatisfiable core [2022-02-19 15:59:09,366 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:59:13,685 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120738 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-19 15:59:13,686 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:00:02,789 INFO L134 CoverageAnalysis]: Checked inductivity of 271426 backedges. 150656 proven. 120770 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 16:00:02,789 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698597534] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:00:02,789 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:00:02,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [477, 477, 493] total 773 [2022-02-19 16:00:02,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1268279552] [2022-02-19 16:00:02,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:00:02,799 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 774 states [2022-02-19 16:00:02,799 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:00:02,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 774 interpolants. [2022-02-19 16:00:02,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168095, Invalid=430207, Unknown=0, NotChecked=0, Total=598302 [2022-02-19 16:00:02,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:00:02,860 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:00:02,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 774 states, 774 states have (on average 5.078811369509044) internal successors, (3931), 773 states have internal predecessors, (3931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 374 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 212 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 407 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 204 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 666 states. [2022-02-19 16:00:02,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 16:02:44,914 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:02:44,922 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:02:44,923 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:02:45,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 16:02:45,203 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:02:45,203 WARN L594 AbstractCegarLoop]: Verification canceled: while executing DepthFirstTraversal. [2022-02-19 16:02:45,206 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 16:02:45,206 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 16:02:45,206 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 16:02:45,213 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-02-19 16:02:45,215 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 16:02:45,215 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 16:02:45,217 INFO L202 PluginConnector]: Adding new model misc-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:02:45 BasicIcfg [2022-02-19 16:02:45,217 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 16:02:45,217 INFO L158 Benchmark]: Toolchain (without parser) took 852523.32ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 136.5MB in the beginning and 609.5MB in the end (delta: -473.1MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-02-19 16:02:45,217 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 178.3MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 16:02:45,217 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.70ms. Allocated memory is still 178.3MB. Free memory was 136.4MB in the beginning and 134.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 16:02:45,218 INFO L158 Benchmark]: Boogie Preprocessor took 10.82ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 960.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 16:02:45,218 INFO L158 Benchmark]: RCFGBuilder took 161.59ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 125.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 16:02:45,218 INFO L158 Benchmark]: TraceAbstraction took 852328.47ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 124.7MB in the beginning and 609.5MB in the end (delta: -484.8MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. [2022-02-19 16:02:45,219 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 0.10ms. Allocated memory is still 178.3MB. Free memory is still 137.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.70ms. Allocated memory is still 178.3MB. Free memory was 136.4MB in the beginning and 134.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.82ms. Allocated memory is still 178.3MB. Free memory was 134.9MB in the beginning and 133.9MB in the end (delta: 960.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 161.59ms. Allocated memory is still 178.3MB. Free memory was 133.9MB in the beginning and 125.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 852328.47ms. Allocated memory was 178.3MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 124.7MB in the beginning and 609.5MB in the end (delta: -484.8MB). Peak memory consumption was 2.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing DepthFirstTraversal. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 44 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 852.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 635.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2326, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 5.9s SatisfiabilityAnalysisTime, 207.9s InterpolantComputationTime, 17269 NumberOfCodeBlocks, 17269 NumberOfCodeBlocksAsserted, 295 NumberOfCheckSat, 25405 ConstructedInterpolants, 0 QuantifiedInterpolants, 172617 SizeOfPredicates, 19 NumberOfNonLiveVariables, 11482 ConjunctsInSsa, 1579 ConjunctsInUnsatCore, 20 InterpolantComputations, 2 PerfectInterpolantSequences, 1134107/1852302 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown