/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 15:53:58,175 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 15:53:58,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 15:53:58,229 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 15:53:58,230 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 15:53:58,230 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 15:53:58,232 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 15:53:58,237 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 15:53:58,240 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 15:53:58,245 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 15:53:58,246 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 15:53:58,250 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 15:53:58,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 15:53:58,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 15:53:58,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 15:53:58,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 15:53:58,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 15:53:58,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 15:53:58,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 15:53:58,257 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 15:53:58,258 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 15:53:58,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 15:53:58,264 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 15:53:58,265 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 15:53:58,273 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 15:53:58,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 15:53:58,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 15:53:58,279 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 15:53:58,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-02-19 15:53:58,301 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 15:53:58,301 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 15:53:58,302 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 15:53:58,302 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 15:53:58,302 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 15:53:58,302 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 15:53:58,306 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 15:53:58,306 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 15:53:58,306 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 15:53:58,306 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 15:53:58,307 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 15:53:58,307 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 15:53:58,307 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 15:53:58,307 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 15:53:58,308 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 15:53:58,308 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 15:53:58,309 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 15:53:58,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 15:53:58,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 15:53:58,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 15:53:58,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 15:53:58,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 15:53:58,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 15:53:58,312 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 15:53:58,312 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 15:53:58,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 15:53:58,500 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 15:53:58,515 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 15:53:58,517 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 15:53:58,518 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 15:53:58,519 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 15:53:58,520 INFO L432 ainManager$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 [2022-02-19 15:53:58,520 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2022-02-19 15:53:58,541 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 15:53:58,542 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 15:53:58,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 15:53:58,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 15:53:58,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 15:53:58,555 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,561 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,567 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 15:53:58,568 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 15:53:58,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 15:53:58,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 15:53:58,570 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 15:53:58,576 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,576 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,577 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,577 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,579 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,581 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,582 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 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,583 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 15:53:58,583 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 15:53:58,583 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 15:53:58,583 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 15:53:58,584 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:53:58" (1/1) ... [2022-02-19 15:53:58,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 15:53:58,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:53:58,608 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 15:53:58,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 15:53:58,649 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 15:53:58,649 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 15:53:58,649 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 15:53:58,650 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 15:53:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 15:53:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 15:53:58,650 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 15:53:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 15:53:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 15:53:58,650 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 15:53:58,650 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 15:53:58,650 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 15:53:58,650 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 15:53:58,651 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 15:53:58,651 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 15:53:58,652 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 15:53:58,689 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 15:53:58,690 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 15:53:58,800 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 15:53:58,820 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 15:53:58,821 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-02-19 15:53:58,821 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-02-19 15:53:58,821 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-02-19 15:53:58,822 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2022-02-19 15:53:58,823 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 03:53:58 BoogieIcfgContainer [2022-02-19 15:53:58,823 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 15:53:58,824 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 15:53:58,825 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 15:53:58,833 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 15:53:58,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 03:53:58" (1/2) ... [2022-02-19 15:53:58,834 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e439764 and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 03:53:58, skipping insertion in model container [2022-02-19 15:53:58,835 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 19.02 03:53:58" (2/2) ... [2022-02-19 15:53:58,836 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2022-02-19 15:53:58,854 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 15:53:58,854 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 15:53:58,854 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 15:53:58,854 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 15:53:58,927 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-02-19 15:53:58,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 15:53:58,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:53:58,991 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 15:53:58,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 15:53:59,022 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 15:53:59,028 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-02-19 15:53:59,028 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-02-19 15:53:59,111 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 233 transitions and produced 176 states. [2022-02-19 15:53:59,113 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 15:53:59,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:53:59,122 INFO L85 PathProgramCache]: Analyzing trace with hash -827380568, now seen corresponding path program 1 times [2022-02-19 15:53:59,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:53:59,129 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264123985] [2022-02-19 15:53:59,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:53:59,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:53:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:53:59,523 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 55 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:53:59,524 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:53:59,524 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264123985] [2022-02-19 15:53:59,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264123985] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:53:59,525 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [911503819] [2022-02-19 15:53:59,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:53:59,525 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:53:59,525 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:53:59,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:53:59,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 15:53:59,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:53:59,603 INFO L263 TraceCheckSpWp]: Trace formula consists of 147 conjuncts, 16 conjunts are in the unsatisfiable core [2022-02-19 15:53:59,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:53:59,930 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 55 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:53:59,931 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:54:00,192 INFO L134 CoverageAnalysis]: Checked inductivity of 77 backedges. 55 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:00,193 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [911503819] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:54:00,193 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:54:00,194 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 32 [2022-02-19 15:54:00,196 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948615746] [2022-02-19 15:54:00,198 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:54:00,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-19 15:54:00,203 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:54:00,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-19 15:54:00,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=272, Invalid=720, Unknown=0, NotChecked=0, Total=992 [2022-02-19 15:54:00,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:54:00,233 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:54:00,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.5) internal successors, (80), 32 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:54:00,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:54:00,821 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 178 transitions and produced 172 states. [2022-02-19 15:54:00,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 15:54:00,839 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 15:54:01,022 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 15:54:01,023 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 15:54:01,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:54:01,028 INFO L85 PathProgramCache]: Analyzing trace with hash -210262169, now seen corresponding path program 1 times [2022-02-19 15:54:01,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:54:01,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402018759] [2022-02-19 15:54:01,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:54:01,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:54:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:54:01,290 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 100 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:01,290 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:54:01,290 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402018759] [2022-02-19 15:54:01,290 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402018759] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:54:01,291 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [933645310] [2022-02-19 15:54:01,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:54:01,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:54:01,291 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:54:01,293 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:54:01,298 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 15:54:01,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:54:01,348 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjunts are in the unsatisfiable core [2022-02-19 15:54:01,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:54:01,590 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 100 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:01,590 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:54:01,831 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 100 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:01,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [933645310] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:54:01,831 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:54:01,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 37 [2022-02-19 15:54:01,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827370464] [2022-02-19 15:54:01,832 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:54:01,833 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-02-19 15:54:01,833 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:54:01,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-02-19 15:54:01,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1009, Unknown=0, NotChecked=0, Total=1332 [2022-02-19 15:54:01,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:54:01,835 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:54:01,835 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.4324324324324325) internal successors, (90), 37 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:54:01,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 15:54:01,835 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:54:02,381 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 213 transitions and produced 203 states. [2022-02-19 15:54:02,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 15:54:02,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-19 15:54:02,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 15:54:02,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:54:02,583 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 15:54:02,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:54:02,584 INFO L85 PathProgramCache]: Analyzing trace with hash 2081311953, now seen corresponding path program 2 times [2022-02-19 15:54:02,584 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:54:02,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785369439] [2022-02-19 15:54:02,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:54:02,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:54:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:54:05,616 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 63 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:05,618 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:54:05,618 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785369439] [2022-02-19 15:54:05,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1785369439] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:54:05,626 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1168180810] [2022-02-19 15:54:05,627 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 15:54:05,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:54:05,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:54:05,628 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:54:05,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 15:54:05,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 15:54:05,689 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:54:05,691 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-19 15:54:05,695 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:54:11,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,978 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,981 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:11,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,983 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,985 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:11,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,986 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,987 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,994 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,994 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:11,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,998 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:11,999 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,000 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,000 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,002 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,008 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,009 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,010 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,013 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,014 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,016 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,017 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,020 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,021 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,025 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,025 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,030 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:54:12,034 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,035 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:12,043 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 55 disjoint index pairs (out of 231 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 63 [2022-02-19 15:54:12,202 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:54:12,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 15:54:25,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,236 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,280 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,281 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,287 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,288 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,289 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,292 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,293 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,296 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,297 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,299 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,300 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,302 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,305 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:54:25,310 INFO L244 Elim1Store]: Index analysis took 116 ms [2022-02-19 15:54:27,472 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 15:54:27,473 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 110 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 121 case distinctions, treesize of input 181 treesize of output 1242 [2022-02-19 15:56:28,947 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:56:28,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1168180810] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 15:56:28,948 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 15:56:28,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 137 [2022-02-19 15:56:28,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474775362] [2022-02-19 15:56:28,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 15:56:28,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-02-19 15:56:28,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 15:56:28,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-02-19 15:56:28,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=899, Invalid=17733, Unknown=0, NotChecked=0, Total=18632 [2022-02-19 15:56:28,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:56:28,957 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 15:56:28,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 1.1094890510948905) internal successors, (152), 137 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 15:56:28,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-02-19 15:56:28,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-02-19 15:56:28,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 15:56:40,179 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 229 transitions and produced 215 states. [2022-02-19 15:56:40,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-02-19 15:56:40,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-02-19 15:56:40,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-19 15:56:40,197 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-19 15:56:40,380 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 [2022-02-19 15:56:40,380 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-02-19 15:56:40,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 15:56:40,381 INFO L85 PathProgramCache]: Analyzing trace with hash 121005553, now seen corresponding path program 3 times [2022-02-19 15:56:40,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 15:56:40,381 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [985632946] [2022-02-19 15:56:40,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 15:56:40,381 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 15:56:40,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 15:56:43,489 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 15:56:43,489 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 15:56:43,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [985632946] [2022-02-19 15:56:43,489 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [985632946] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 15:56:43,489 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245177999] [2022-02-19 15:56:43,489 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 15:56:43,489 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 15:56:43,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 15:56:43,491 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 15:56:43,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 15:56:43,561 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-02-19 15:56:43,561 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 15:56:43,563 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 153 conjunts are in the unsatisfiable core [2022-02-19 15:56:43,566 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 15:56:59,185 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,189 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,191 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,192 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,194 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,206 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,208 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,210 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,210 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,215 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,217 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,234 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,266 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,278 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,279 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 15:56:59,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 15:56:59,323 INFO L244 Elim1Store]: Index analysis took 138 ms [2022-02-19 15:57:00,432 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-19 15:57:00,433 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 60 disjoint index pairs (out of 276 index pairs), introduced 18 new quantified variables, introduced 165 case distinctions, treesize of input 170 treesize of output 1102 [2022-02-19 16:02:00,366 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 16:02:00,366 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-02-19 16:07:55,833 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:07:55,833 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:07:55,833 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 16:07:56,856 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-02-19 16:07:56,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 16:07:56,894 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-02-19 16:07:56,894 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-19 16:07:56,894 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2022-02-19 16:07:56,896 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4INUSE_VIOLATION (5 of 7 remaining) [2022-02-19 16:07:56,896 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5INUSE_VIOLATION (4 of 7 remaining) [2022-02-19 16:07:56,897 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-02-19 16:07:56,897 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-02-19 16:07:56,897 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION (1 of 7 remaining) [2022-02-19 16:07:56,897 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION (0 of 7 remaining) [2022-02-19 16:07:56,901 INFO L732 BasicCegarLoop]: Path program histogram: [3, 1] [2022-02-19 16:07:56,903 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 16:07:56,903 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 16:07:56,904 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 04:07:56 BasicIcfg [2022-02-19 16:07:56,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 16:07:56,905 INFO L158 Benchmark]: Toolchain (without parser) took 838362.72ms. Allocated memory was 170.9MB in the beginning and 811.6MB in the end (delta: 640.7MB). Free memory was 135.8MB in the beginning and 451.0MB in the end (delta: -315.2MB). Peak memory consumption was 327.0MB. Max. memory is 8.0GB. [2022-02-19 16:07:56,905 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 170.9MB. Free memory was 137.0MB in the beginning and 136.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 16:07:56,905 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.54ms. Allocated memory is still 170.9MB. Free memory was 135.8MB in the beginning and 134.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 16:07:56,906 INFO L158 Benchmark]: Boogie Preprocessor took 13.37ms. Allocated memory is still 170.9MB. Free memory was 134.1MB in the beginning and 133.2MB in the end (delta: 902.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 16:07:56,906 INFO L158 Benchmark]: RCFGBuilder took 239.90ms. Allocated memory is still 170.9MB. Free memory was 133.1MB in the beginning and 123.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-19 16:07:56,906 INFO L158 Benchmark]: TraceAbstraction took 838079.88ms. Allocated memory was 170.9MB in the beginning and 811.6MB in the end (delta: 640.7MB). Free memory was 122.6MB in the beginning and 451.0MB in the end (delta: -328.4MB). Peak memory consumption was 313.4MB. Max. memory is 8.0GB. [2022-02-19 16:07:56,913 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 0.13ms. Allocated memory is still 170.9MB. Free memory was 137.0MB in the beginning and 136.9MB in the end (delta: 139.9kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.54ms. Allocated memory is still 170.9MB. Free memory was 135.8MB in the beginning and 134.1MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.37ms. Allocated memory is still 170.9MB. Free memory was 134.1MB in the beginning and 133.2MB in the end (delta: 902.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.90ms. Allocated memory is still 170.9MB. Free memory was 133.1MB in the beginning and 123.2MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 838079.88ms. Allocated memory was 170.9MB in the beginning and 811.6MB in the end (delta: 640.7MB). Free memory was 122.6MB in the beginning and 451.0MB in the end (delta: -328.4MB). Peak memory consumption was 313.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 86]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 837.9s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 12.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 142, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 147.8s InterpolantComputationTime, 304 NumberOfCodeBlocks, 304 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 447 ConstructedInterpolants, 45 QuantifiedInterpolants, 14183 SizeOfPredicates, 35 NumberOfNonLiveVariables, 532 ConjunctsInSsa, 178 ConjunctsInUnsatCore, 9 InterpolantComputations, 0 PerfectInterpolantSequences, 528/1428 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