/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-22 13:28:32,298 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-22 13:28:32,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-22 13:28:32,348 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-22 13:28:32,366 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-22 13:28:32,367 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-22 13:28:32,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-22 13:28:32,368 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-22 13:28:32,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-22 13:28:32,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-22 13:28:32,379 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-22 13:28:32,386 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-22 13:28:32,387 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-22 13:28:32,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-22 13:28:32,390 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-22 13:28:32,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-22 13:28:32,393 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-10-22 13:28:32,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-22 13:28:32,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-22 13:28:32,409 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-22 13:28:32,412 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-22 13:28:32,446 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-22 13:28:32,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-22 13:28:32,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-22 13:28:32,447 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-22 13:28:32,448 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-22 13:28:32,448 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-22 13:28:32,448 INFO L138 SettingsManager]: * Use SBE=true [2021-10-22 13:28:32,448 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-22 13:28:32,448 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-22 13:28:32,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-22 13:28:32,449 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-22 13:28:32,449 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-22 13:28:32,449 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-22 13:28:32,449 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-22 13:28:32,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-22 13:28:32,450 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 13:28:32,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-22 13:28:32,451 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-22 13:28:32,452 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-22 13:28:32,679 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-22 13:28:32,705 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-22 13:28:32,707 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-22 13:28:32,708 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-22 13:28:32,709 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-22 13:28:32,710 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2021-10-22 13:28:32,710 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2021-10-22 13:28:32,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-22 13:28:32,745 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-22 13:28:32,747 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-22 13:28:32,747 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-22 13:28:32,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-22 13:28:32,758 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,764 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,770 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-22 13:28:32,771 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-22 13:28:32,772 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-22 13:28:32,772 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-22 13:28:32,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,792 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-22 13:28:32,794 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-22 13:28:32,794 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-22 13:28:32,794 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-22 13:28:32,795 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/1) ... [2021-10-22 13:28:32,801 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-22 13:28:32,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:32,837 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) [2021-10-22 13:28:32,858 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 [2021-10-22 13:28:32,874 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-22 13:28:32,874 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-22 13:28:32,874 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-22 13:28:32,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-22 13:28:32,875 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-22 13:28:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-22 13:28:32,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-22 13:28:32,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-22 13:28:32,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-22 13:28:32,875 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-22 13:28:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-22 13:28:32,876 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-22 13:28:32,876 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-10-22 13:28:32,876 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-10-22 13:28:32,877 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-10-22 13:28:32,877 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-22 13:28:33,071 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-22 13:28:33,071 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2021-10-22 13:28:33,072 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2021-10-22 13:28:33,073 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2021-10-22 13:28:33,073 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2021-10-22 13:28:33,074 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:28:33 BoogieIcfgContainer [2021-10-22 13:28:33,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-22 13:28:33,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-22 13:28:33,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-22 13:28:33,079 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-22 13:28:33,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 22.10 01:28:32" (1/2) ... [2021-10-22 13:28:33,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69c3e06f and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:28:33, skipping insertion in model container [2021-10-22 13:28:33,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:28:33" (2/2) ... [2021-10-22 13:28:33,081 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2021-10-22 13:28:33,085 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-22 13:28:33,085 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-22 13:28:33,085 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-22 13:28:33,085 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-22 13:28:33,139 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2021-10-22 13:28:33,197 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 13:28:33,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:33,199 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) [2021-10-22 13:28:33,200 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 [2021-10-22 13:28:33,232 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Thread1of1ForFork0 ======== [2021-10-22 13:28:33,236 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 13:28:33,237 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-22 13:28:33,423 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION [2021-10-22 13:28:33,424 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION [2021-10-22 13:28:33,435 INFO L308 ceAbstractionStarter]: Result for error location thread1Thread1of1ForFork0 was SAFE,SAFE (1/2) [2021-10-22 13:28:33,449 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-22 13:28:33,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:33,450 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-22 13:28:33,451 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2021-10-22 13:28:33,455 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-22 13:28:33,456 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, mConcurrency=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, mLoopAccelerationTechnique=FAST_UPR [2021-10-22 13:28:33,456 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-22 13:28:33,588 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:33,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:33,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1240384201, now seen corresponding path program 1 times [2021-10-22 13:28:33,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:33,598 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633105946] [2021-10-22 13:28:33,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:33,599 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:33,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:33,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:33,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633105946] [2021-10-22 13:28:33,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1633105946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:33,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719658104] [2021-10-22 13:28:33,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:33,824 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:33,824 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:33,868 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) [2021-10-22 13:28:33,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-22 13:28:33,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:33,926 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-22 13:28:33,949 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:34,187 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:34,188 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719658104] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:34,188 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:34,188 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 10 [2021-10-22 13:28:34,190 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041870206] [2021-10-22 13:28:34,194 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-22 13:28:34,194 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:34,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-22 13:28:34,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2021-10-22 13:28:34,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:34,206 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:34,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.2) internal successors, (32), 10 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:34,207 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:34,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 13:28:34,374 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-22 13:28:34,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:34,564 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:34,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:34,564 INFO L82 PathProgramCache]: Analyzing trace with hash 1712666735, now seen corresponding path program 2 times [2021-10-22 13:28:34,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:34,565 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [956213927] [2021-10-22 13:28:34,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:34,565 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:34,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:34,602 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:34,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [956213927] [2021-10-22 13:28:34,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [956213927] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-22 13:28:34,604 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-22 13:28:34,604 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-22 13:28:34,604 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827650505] [2021-10-22 13:28:34,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-22 13:28:34,605 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:34,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-22 13:28:34,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-22 13:28:34,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:34,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:34,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:34,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 13:28:34,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-22 13:28:34,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:34,626 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-22 13:28:34,627 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:34,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:34,627 INFO L82 PathProgramCache]: Analyzing trace with hash 1424838245, now seen corresponding path program 3 times [2021-10-22 13:28:34,627 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:34,628 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1688188521] [2021-10-22 13:28:34,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:34,628 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:34,877 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:34,877 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:34,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1688188521] [2021-10-22 13:28:34,882 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1688188521] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:34,882 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [803217548] [2021-10-22 13:28:34,882 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 13:28:34,882 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:34,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:34,883 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) [2021-10-22 13:28:34,899 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-22 13:28:34,948 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-10-22 13:28:34,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:28:34,949 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 20 conjunts are in the unsatisfiable core [2021-10-22 13:28:34,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:35,256 INFO L354 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2021-10-22 13:28:35,257 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 15 [2021-10-22 13:28:35,525 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:35,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [803217548] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:35,526 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:35,526 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2021-10-22 13:28:35,526 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013601702] [2021-10-22 13:28:35,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-22 13:28:35,527 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:35,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-22 13:28:35,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-10-22 13:28:35,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:35,528 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:35,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.2666666666666666) internal successors, (34), 15 states have internal predecessors, (34), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:35,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-22 13:28:35,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:35,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:36,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:36,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:36,216 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-22 13:28:36,401 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:36,401 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:36,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:36,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1935837846, now seen corresponding path program 1 times [2021-10-22 13:28:36,402 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:36,402 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831423329] [2021-10-22 13:28:36,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:36,402 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:36,971 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:36,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:36,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831423329] [2021-10-22 13:28:36,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1831423329] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:36,971 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1961316725] [2021-10-22 13:28:36,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:36,972 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:36,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:36,973 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) [2021-10-22 13:28:36,982 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-22 13:28:37,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:37,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 45 conjunts are in the unsatisfiable core [2021-10-22 13:28:37,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:37,685 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 3 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2021-10-22 13:28:37,759 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:37,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1961316725] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:37,759 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:37,759 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 16] total 31 [2021-10-22 13:28:37,759 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491630848] [2021-10-22 13:28:37,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-10-22 13:28:37,760 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:37,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-10-22 13:28:37,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=113, Invalid=817, Unknown=0, NotChecked=0, Total=930 [2021-10-22 13:28:37,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:37,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:37,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 31 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:37,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:37,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:37,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:37,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:39,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:39,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-22 13:28:39,400 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-22 13:28:39,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:39,593 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:39,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:39,594 INFO L82 PathProgramCache]: Analyzing trace with hash -663723060, now seen corresponding path program 2 times [2021-10-22 13:28:39,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:39,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601700776] [2021-10-22 13:28:39,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:39,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:39,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:39,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 11 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:39,684 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:39,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601700776] [2021-10-22 13:28:39,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601700776] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:39,684 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [294532495] [2021-10-22 13:28:39,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 13:28:39,684 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:39,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:39,687 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) [2021-10-22 13:28:39,688 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-22 13:28:39,807 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 13:28:39,807 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:28:39,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-22 13:28:39,809 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:40,043 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:40,043 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [294532495] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:40,043 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:40,044 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 16 [2021-10-22 13:28:40,044 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [921737207] [2021-10-22 13:28:40,044 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-10-22 13:28:40,044 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:40,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-10-22 13:28:40,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=187, Unknown=0, NotChecked=0, Total=240 [2021-10-22 13:28:40,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:40,045 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:40,045 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.125) internal successors, (50), 16 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:40,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:40,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:40,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:40,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-10-22 13:28:40,045 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:41,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:41,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 13:28:41,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:28:41,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-22 13:28:41,279 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:41,279 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:41,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:41,280 INFO L82 PathProgramCache]: Analyzing trace with hash 1633084781, now seen corresponding path program 3 times [2021-10-22 13:28:41,280 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:41,280 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128887759] [2021-10-22 13:28:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:41,280 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:41,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:42,217 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 2 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:42,217 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:42,217 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128887759] [2021-10-22 13:28:42,218 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128887759] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:42,218 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494729011] [2021-10-22 13:28:42,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 13:28:42,218 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:42,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:42,219 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) [2021-10-22 13:28:42,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-22 13:28:42,371 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-22 13:28:42,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:28:42,372 WARN L261 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 67 conjunts are in the unsatisfiable core [2021-10-22 13:28:42,374 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:44,283 INFO L354 Elim1Store]: treesize reduction 78, result has 68.2 percent of original size [2021-10-22 13:28:44,283 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 1 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 27 case distinctions, treesize of input 62 treesize of output 204 [2021-10-22 13:28:52,346 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:52,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494729011] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:52,346 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:52,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 26] total 49 [2021-10-22 13:28:52,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436324109] [2021-10-22 13:28:52,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2021-10-22 13:28:52,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:52,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2021-10-22 13:28:52,348 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=2171, Unknown=0, NotChecked=0, Total=2352 [2021-10-22 13:28:52,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:52,349 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:52,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 1.3877551020408163) internal successors, (68), 49 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:28:52,349 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-22 13:28:58,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:28:58,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:28:58,035 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-22 13:28:58,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:58,220 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:28:58,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:28:58,220 INFO L82 PathProgramCache]: Analyzing trace with hash 1687019279, now seen corresponding path program 4 times [2021-10-22 13:28:58,220 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:28:58,220 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067183575] [2021-10-22 13:28:58,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:28:58,220 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:28:58,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:28:58,332 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:58,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:28:58,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067183575] [2021-10-22 13:28:58,338 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067183575] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:58,338 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [270050195] [2021-10-22 13:28:58,338 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-22 13:28:58,338 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:28:58,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:28:58,339 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:28:58,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-22 13:28:58,544 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-22 13:28:58,544 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:28:58,545 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-22 13:28:58,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:28:58,854 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 20 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:28:58,854 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [270050195] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:28:58,854 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:28:58,854 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 22 [2021-10-22 13:28:58,854 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272049850] [2021-10-22 13:28:58,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-10-22 13:28:58,855 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:28:58,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-10-22 13:28:58,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=373, Unknown=0, NotChecked=0, Total=462 [2021-10-22 13:28:58,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:28:58,856 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:28:58,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.0) internal successors, (66), 22 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:28:58,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:00,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:00,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-22 13:29:00,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-10-22 13:29:00,663 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:29:00,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:29:00,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1651322800, now seen corresponding path program 5 times [2021-10-22 13:29:00,664 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:29:00,664 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582730754] [2021-10-22 13:29:00,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:29:00,664 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:29:00,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:01,953 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 5 proven. 69 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:01,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:29:01,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582730754] [2021-10-22 13:29:01,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [582730754] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:01,954 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64744660] [2021-10-22 13:29:01,954 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-22 13:29:01,954 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:01,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:29:01,955 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:29:01,956 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-22 13:29:02,203 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-10-22 13:29:02,204 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:29:02,205 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 93 conjunts are in the unsatisfiable core [2021-10-22 13:29:02,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:29:04,076 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 23 [2021-10-22 13:29:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 0 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:04,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64744660] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:04,169 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:29:04,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32] total 63 [2021-10-22 13:29:04,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286489840] [2021-10-22 13:29:04,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2021-10-22 13:29:04,169 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:29:04,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2021-10-22 13:29:04,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=305, Invalid=3601, Unknown=0, NotChecked=0, Total=3906 [2021-10-22 13:29:04,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:04,172 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:29:04,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 1.3333333333333333) internal successors, (84), 63 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:29:04,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:04,173 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:11,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2021-10-22 13:29:11,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2021-10-22 13:29:11,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:11,742 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:29:11,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:29:11,742 INFO L82 PathProgramCache]: Analyzing trace with hash 2033886354, now seen corresponding path program 6 times [2021-10-22 13:29:11,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:29:11,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579825924] [2021-10-22 13:29:11,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:29:11,743 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:29:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:11,877 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 31 proven. 58 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:11,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:29:11,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579825924] [2021-10-22 13:29:11,878 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579825924] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:11,878 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897828946] [2021-10-22 13:29:11,878 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-22 13:29:11,879 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:11,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:29:11,883 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:29:11,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-22 13:29:12,188 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-10-22 13:29:12,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:29:12,189 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core [2021-10-22 13:29:12,190 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:29:12,598 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 27 proven. 62 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:12,599 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897828946] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:12,599 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:29:12,599 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 19] total 28 [2021-10-22 13:29:12,599 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842851750] [2021-10-22 13:29:12,599 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2021-10-22 13:29:12,599 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:29:12,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-10-22 13:29:12,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=626, Unknown=0, NotChecked=0, Total=756 [2021-10-22 13:29:12,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:12,600 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:29:12,601 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9285714285714284) internal successors, (82), 28 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2021-10-22 13:29:12,601 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-10-22 13:29:15,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 13:29:15,836 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-22 13:29:16,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-10-22 13:29:16,020 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:29:16,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:29:16,020 INFO L82 PathProgramCache]: Analyzing trace with hash -908868557, now seen corresponding path program 7 times [2021-10-22 13:29:16,021 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:29:16,021 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260117285] [2021-10-22 13:29:16,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:29:16,021 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:29:16,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:17,739 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 15 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:17,739 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:29:17,739 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260117285] [2021-10-22 13:29:17,739 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260117285] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:17,740 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308034422] [2021-10-22 13:29:17,740 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-22 13:29:17,740 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:17,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:29:17,743 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:29:17,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-22 13:29:18,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:18,111 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 117 conjunts are in the unsatisfiable core [2021-10-22 13:29:18,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:29:20,878 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 36 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 27 [2021-10-22 13:29:21,060 INFO L134 CoverageAnalysis]: Checked inductivity of 122 backedges. 0 proven. 122 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:21,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308034422] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:21,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:29:21,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 40] total 79 [2021-10-22 13:29:21,061 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060650559] [2021-10-22 13:29:21,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2021-10-22 13:29:21,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:29:21,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2021-10-22 13:29:21,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=500, Invalid=5662, Unknown=0, NotChecked=0, Total=6162 [2021-10-22 13:29:21,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:21,063 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:29:21,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 1.2658227848101267) internal successors, (100), 79 states have internal predecessors, (100), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-10-22 13:29:21,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-10-22 13:29:31,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 13:29:31,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2021-10-22 13:29:31,552 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-22 13:29:31,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-10-22 13:29:31,735 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:29:31,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:29:31,736 INFO L82 PathProgramCache]: Analyzing trace with hash -1588714411, now seen corresponding path program 8 times [2021-10-22 13:29:31,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:29:31,736 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464365607] [2021-10-22 13:29:31,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:29:31,736 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:29:31,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:31,880 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 44 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:31,880 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:29:31,880 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464365607] [2021-10-22 13:29:31,880 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464365607] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:31,881 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1235714541] [2021-10-22 13:29:31,881 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-22 13:29:31,881 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:31,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:29:31,882 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:29:31,887 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-22 13:29:32,334 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-22 13:29:32,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:29:32,335 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 22 conjunts are in the unsatisfiable core [2021-10-22 13:29:32,337 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:29:32,828 INFO L134 CoverageAnalysis]: Checked inductivity of 141 backedges. 39 proven. 102 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:32,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1235714541] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:32,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-22 13:29:32,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 23] total 34 [2021-10-22 13:29:32,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183091650] [2021-10-22 13:29:32,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-10-22 13:29:32,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-22 13:29:32,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-10-22 13:29:32,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=179, Invalid=943, Unknown=0, NotChecked=0, Total=1122 [2021-10-22 13:29:32,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:32,829 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-22 13:29:32,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8823529411764706) internal successors, (98), 34 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2021-10-22 13:29:32,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-10-22 13:29:37,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-10-22 13:29:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-10-22 13:29:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-10-22 13:29:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2021-10-22 13:29:37,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-22 13:29:37,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2021-10-22 13:29:37,484 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr3INUSE_VIOLATION] === [2021-10-22 13:29:37,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-22 13:29:37,484 INFO L82 PathProgramCache]: Analyzing trace with hash -782101770, now seen corresponding path program 9 times [2021-10-22 13:29:37,484 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-22 13:29:37,484 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [703124256] [2021-10-22 13:29:37,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-22 13:29:37,485 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-22 13:29:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-22 13:29:39,758 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 39 proven. 143 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-22 13:29:39,759 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-22 13:29:39,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [703124256] [2021-10-22 13:29:39,759 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [703124256] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-22 13:29:39,759 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2080297167] [2021-10-22 13:29:39,759 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-22 13:29:39,759 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-22 13:29:39,759 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-22 13:29:39,763 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-22 13:29:39,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-22 13:29:40,257 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2021-10-22 13:29:40,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-22 13:29:40,261 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 141 conjunts are in the unsatisfiable core [2021-10-22 13:29:40,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-22 13:29:47,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:47,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-22 13:29:50,522 INFO L354 Elim1Store]: treesize reduction 1367, result has 34.4 percent of original size [2021-10-22 13:29:50,523 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 45 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 186 case distinctions, treesize of input 179 treesize of output 774 Received shutdown request... [2021-10-22 13:42:28,681 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 [2021-10-22 13:42:28,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 13:42:28,681 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-22 13:42:28,682 WARN L223 SmtUtils]: Removed 1 from assertion stack [2021-10-22 13:42:28,684 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-22 13:42:28,690 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 [2021-10-22 13:42:28,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-22 13:42:28,884 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2021-10-22 13:42:28,884 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 61 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 15ms.. [2021-10-22 13:42:28,884 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-22 13:42:28,885 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-10-22 13:42:28,886 INFO L308 ceAbstractionStarter]: Result for error location ULTIMATE.start was TIMEOUT,TIMEOUT,TIMEOUT (2/2) [2021-10-22 13:42:28,887 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-22 13:42:28,887 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-22 13:42:28,888 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:42:28 BasicIcfg [2021-10-22 13:42:28,888 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-22 13:42:28,889 INFO L168 Benchmark]: Toolchain (without parser) took 836143.23 ms. Allocated memory was 176.2 MB in the beginning and 792.7 MB in the end (delta: 616.6 MB). Free memory was 133.2 MB in the beginning and 564.7 MB in the end (delta: -431.5 MB). Peak memory consumption was 510.1 MB. Max. memory is 8.0 GB. [2021-10-22 13:42:28,889 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-22 13:42:28,889 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.08 ms. Allocated memory is still 176.2 MB. Free memory was 133.1 MB in the beginning and 131.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-22 13:42:28,890 INFO L168 Benchmark]: Boogie Preprocessor took 20.77 ms. Allocated memory is still 176.2 MB. Free memory was 131.6 MB in the beginning and 130.7 MB in the end (delta: 931.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-22 13:42:28,890 INFO L168 Benchmark]: RCFGBuilder took 280.81 ms. Allocated memory is still 176.2 MB. Free memory was 130.6 MB in the beginning and 114.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-10-22 13:42:28,890 INFO L168 Benchmark]: TraceAbstraction took 835812.60 ms. Allocated memory was 176.2 MB in the beginning and 792.7 MB in the end (delta: 616.6 MB). Free memory was 114.0 MB in the beginning and 564.7 MB in the end (delta: -450.6 MB). Peak memory consumption was 489.1 MB. Max. memory is 8.0 GB. [2021-10-22 13:42:28,891 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 0.12 ms. Allocated memory is still 176.2 MB. Free memory is still 134.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 24.08 ms. Allocated memory is still 176.2 MB. Free memory was 133.1 MB in the beginning and 131.6 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 20.77 ms. Allocated memory is still 176.2 MB. Free memory was 131.6 MB in the beginning and 130.7 MB in the end (delta: 931.3 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 280.81 ms. Allocated memory is still 176.2 MB. Free memory was 130.6 MB in the beginning and 114.5 MB in the end (delta: 16.1 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 835812.60 ms. Allocated memory was 176.2 MB in the beginning and 792.7 MB in the end (delta: 616.6 MB). Free memory was 114.0 MB in the beginning and 564.7 MB in the end (delta: -450.6 MB). Peak memory consumption was 489.1 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 392, positive: 380, positive conditional: 27, positive unconditional: 353, negative: 12, negative conditional: 5, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 387, positive: 380, positive conditional: 0, positive unconditional: 380, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 350, positive: 343, positive conditional: 0, positive unconditional: 343, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 350, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 387, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 350, unknown conditional: 0, unknown unconditional: 350] , Statistics on independence cache: Total cache size (in pairs): 350, Positive cache size: 343, Positive conditional cache size: 0, Positive unconditional cache size: 343, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 5 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 123, Number of persistent set computation: 13, Number of trivial persistent sets: 6, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 392, positive: 380, positive conditional: 27, positive unconditional: 353, negative: 12, negative conditional: 5, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 387, positive: 380, positive conditional: 0, positive unconditional: 380, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 350, positive: 343, positive conditional: 0, positive unconditional: 343, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 350, positive: 341, positive conditional: 0, positive unconditional: 341, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 9, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 7, negative conditional: 0, negative unconditional: 7, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 90, positive: 7, positive conditional: 0, positive unconditional: 7, negative: 83, negative conditional: 0, negative unconditional: 83, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 387, positive: 37, positive conditional: 0, positive unconditional: 37, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 350, unknown conditional: 0, unknown unconditional: 350] , Statistics on independence cache: Total cache size (in pairs): 350, Positive cache size: 343, Positive conditional cache size: 0, Positive unconditional cache size: 343, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Independence queries for same thread: 5 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2801, positive: 2202, positive conditional: 1743, positive unconditional: 459, negative: 599, negative conditional: 591, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2284, positive: 2202, positive conditional: 0, positive unconditional: 2202, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 432, positive: 423, positive conditional: 0, positive unconditional: 423, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 432, positive: 419, positive conditional: 0, positive unconditional: 419, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2284, positive: 1779, positive conditional: 0, positive unconditional: 1779, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 432, unknown conditional: 0, unknown unconditional: 432] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 423, Positive conditional cache size: 0, Positive unconditional cache size: 423, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Independence queries for same thread: 517 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 110, Number of persistent set computation: 35, Number of trivial persistent sets: 15, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2801, positive: 2202, positive conditional: 1743, positive unconditional: 459, negative: 599, negative conditional: 591, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2284, positive: 2202, positive conditional: 0, positive unconditional: 2202, negative: 82, negative conditional: 0, negative unconditional: 82, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 432, positive: 423, positive conditional: 0, positive unconditional: 423, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 432, positive: 419, positive conditional: 0, positive unconditional: 419, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 13, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 9, negative conditional: 0, negative unconditional: 9, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, positive: 13, positive conditional: 0, positive unconditional: 13, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 2284, positive: 1779, positive conditional: 0, positive unconditional: 1779, negative: 73, negative conditional: 0, negative unconditional: 73, unknown: 432, unknown conditional: 0, unknown unconditional: 432] , Statistics on independence cache: Total cache size (in pairs): 432, Positive cache size: 423, Positive conditional cache size: 0, Positive unconditional cache size: 423, Negative cache size: 9, Negative conditional cache size: 0, Negative unconditional cache size: 9, Independence queries for same thread: 517 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 61 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 15ms.. - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 61 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 15ms.. - TimeoutResultAtElement [Line: 81]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 61 with TraceHistMax 11,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 6 for 15ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: thread1Thread1of1ForFork0 with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 240.5ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 35.9ms, PartialOrderReductionTime: 143.9ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 835437.2ms, OverallIterations: 12, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1.2ms, PartialOrderReductionTime: 36372.7ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 508, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 90.5ms SsaConstructionTime, 387.0ms SatisfiabilityAnalysisTime, 23061.6ms InterpolantComputationTime, 762 NumberOfCodeBlocks, 762 NumberOfCodeBlocksAsserted, 35 NumberOfCheckSat, 741 ConstructedInterpolants, 14 QuantifiedInterpolants, 12067 SizeOfPredicates, 81 NumberOfNonLiveVariables, 1295 ConjunctsInSsa, 412 ConjunctsInUnsatCore, 21 InterpolantComputations, 1 PerfectInterpolantSequences, 236/1115 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