/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 12:23:10,130 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 12:23:10,133 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 12:23:10,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 12:23:10,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 12:23:10,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 12:23:10,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 12:23:10,211 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 12:23:10,212 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 12:23:10,213 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 12:23:10,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 12:23:10,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 12:23:10,224 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 12:23:10,225 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 12:23:10,226 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 12:23:10,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 12:23:10,228 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 12:23:10,245 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-MCRwithoutDepranks-Lazy.epf [2022-02-20 12:23:10,274 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 12:23:10,275 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 12:23:10,275 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 12:23:10,275 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 12:23:10,276 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 12:23:10,276 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 12:23:10,277 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 12:23:10,277 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 12:23:10,277 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 12:23:10,277 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 12:23:10,278 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 12:23:10,278 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 12:23:10,278 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 12:23:10,278 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 12:23:10,278 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 12:23:10,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 12:23:10,279 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:23:10,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 12:23:10,280 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 12:23:10,281 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 12:23:10,281 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 12:23:10,281 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 12:23:10,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 12:23:10,281 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 12:23:10,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 12:23:10,504 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 12:23:10,532 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 12:23:10,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 12:23:10,535 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 12:23:10,535 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 12:23:10,536 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl [2022-02-20 12:23:10,537 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sorted.wvr.bpl' [2022-02-20 12:23:10,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 12:23:10,557 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 12:23:10,558 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 12:23:10,558 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 12:23:10,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 12:23:10,568 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,578 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 12:23:10,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 12:23:10,580 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 12:23:10,580 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 12:23:10,581 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 12:23:10,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,595 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,599 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,603 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 12:23:10,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 12:23:10,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 12:23:10,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 12:23:10,605 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/1) ... [2022-02-20 12:23:10,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 12:23:10,616 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:23:10,627 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) [2022-02-20 12:23:10,633 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 [2022-02-20 12:23:10,659 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 12:23:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 12:23:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 12:23:10,659 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 12:23:10,659 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 12:23:10,659 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 12:23:10,659 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 12:23:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 12:23:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 12:23:10,660 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 12:23:10,660 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 12:23:10,660 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 12:23:10,661 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 12:23:10,697 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 12:23:10,698 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 12:23:10,780 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 12:23:10,794 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 12:23:10,794 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 12:23:10,796 INFO L202 PluginConnector]: Adding new model sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:23:10 BoogieIcfgContainer [2022-02-20 12:23:10,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 12:23:10,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 12:23:10,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 12:23:10,808 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 12:23:10,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 12:23:10" (1/2) ... [2022-02-20 12:23:10,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2833b3ec and model type sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 12:23:10, skipping insertion in model container [2022-02-20 12:23:10,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sorted.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 12:23:10" (2/2) ... [2022-02-20 12:23:10,811 INFO L111 eAbstractionObserver]: Analyzing ICFG sorted.wvr.bpl [2022-02-20 12:23:10,815 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 12:23:10,815 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 12:23:10,815 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 12:23:10,815 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 12:23:10,855 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 12:23:10,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 12:23:10,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:23:10,936 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) [2022-02-20 12:23:11,004 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 [2022-02-20 12:23:11,032 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 12:23:11,043 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=true, mMcrOverapproximateWrwc=true [2022-02-20 12:23:11,044 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 12:23:15,500 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1190 transitions and produced 1059 states. [2022-02-20 12:23:15,502 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 12:23:15,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:23:15,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1771537624, now seen corresponding path program 1 times [2022-02-20 12:23:15,512 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:23:15,512 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127032298] [2022-02-20 12:23:15,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:23:15,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:23:16,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:23:20,408 INFO L134 CoverageAnalysis]: Checked inductivity of 9221 backedges. 7314 proven. 1867 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-02-20 12:23:20,409 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:23:20,409 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127032298] [2022-02-20 12:23:20,410 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127032298] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:23:20,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [825601330] [2022-02-20 12:23:20,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:23:20,412 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:23:20,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:23:20,413 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) [2022-02-20 12:23:20,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 12:23:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:23:20,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 143 conjunts are in the unsatisfiable core [2022-02-20 12:23:20,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:23:30,476 INFO L134 CoverageAnalysis]: Checked inductivity of 9221 backedges. 1805 proven. 7382 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2022-02-20 12:23:30,476 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:23:39,638 INFO L134 CoverageAnalysis]: Checked inductivity of 9221 backedges. 334 proven. 8881 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 12:23:39,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [825601330] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:23:39,639 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:23:39,639 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [104, 110, 138] total 343 [2022-02-20 12:23:39,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159370028] [2022-02-20 12:23:39,642 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:23:39,654 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 343 states [2022-02-20 12:23:39,655 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:23:39,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 343 interpolants. [2022-02-20 12:23:39,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21999, Invalid=95307, Unknown=0, NotChecked=0, Total=117306 [2022-02-20 12:23:39,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:23:39,717 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:23:39,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 343 states, 343 states have (on average 2.317784256559767) internal successors, (795), 343 states have internal predecessors, (795), 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) [2022-02-20 12:23:39,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:24:41,946 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1663 transitions and produced 1638 states. [2022-02-20 12:24:41,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:24:41,965 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 12:24:42,147 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 [2022-02-20 12:24:42,148 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 12:24:42,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:24:42,149 INFO L85 PathProgramCache]: Analyzing trace with hash 1355158160, now seen corresponding path program 2 times [2022-02-20 12:24:42,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:24:42,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178901772] [2022-02-20 12:24:42,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:24:42,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:24:42,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:24:51,392 INFO L134 CoverageAnalysis]: Checked inductivity of 13867 backedges. 8884 proven. 4983 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 12:24:51,392 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:24:51,392 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178901772] [2022-02-20 12:24:51,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178901772] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:24:51,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173364540] [2022-02-20 12:24:51,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 12:24:51,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:24:51,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:24:51,394 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) [2022-02-20 12:24:51,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 12:24:51,536 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 12:24:51,536 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:24:51,546 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 142 conjunts are in the unsatisfiable core [2022-02-20 12:24:51,557 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:25:06,029 INFO L134 CoverageAnalysis]: Checked inductivity of 13867 backedges. 8375 proven. 4761 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-02-20 12:25:06,030 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:25:14,385 INFO L134 CoverageAnalysis]: Checked inductivity of 13867 backedges. 8375 proven. 4761 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2022-02-20 12:25:14,385 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173364540] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:25:14,386 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:25:14,386 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [177, 143, 143] total 388 [2022-02-20 12:25:14,386 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [598748487] [2022-02-20 12:25:14,387 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:25:14,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 388 states [2022-02-20 12:25:14,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:25:14,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 388 interpolants. [2022-02-20 12:25:14,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22845, Invalid=127311, Unknown=0, NotChecked=0, Total=150156 [2022-02-20 12:25:14,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:25:14,409 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:25:14,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 388 states, 388 states have (on average 2.0850515463917527) internal successors, (809), 388 states have internal predecessors, (809), 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) [2022-02-20 12:25:14,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 494 states. [2022-02-20 12:25:14,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:26:22,238 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3674 transitions and produced 3474 states. [2022-02-20 12:26:22,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 922 states. [2022-02-20 12:26:22,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 285 states. [2022-02-20 12:26:22,257 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 12:26:22,439 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 [2022-02-20 12:26:22,440 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 12:26:22,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 12:26:22,440 INFO L85 PathProgramCache]: Analyzing trace with hash -998428272, now seen corresponding path program 3 times [2022-02-20 12:26:22,440 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 12:26:22,440 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392521585] [2022-02-20 12:26:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 12:26:22,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 12:26:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 12:26:50,764 INFO L134 CoverageAnalysis]: Checked inductivity of 101576 backedges. 77930 proven. 23536 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2022-02-20 12:26:50,764 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 12:26:50,764 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392521585] [2022-02-20 12:26:50,764 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392521585] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 12:26:50,765 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [173077043] [2022-02-20 12:26:50,765 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 12:26:50,765 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 12:26:50,765 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 12:26:50,771 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) [2022-02-20 12:26:50,774 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 12:26:55,955 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 217 check-sat command(s) [2022-02-20 12:26:55,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 12:26:56,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 1726 conjuncts, 424 conjunts are in the unsatisfiable core [2022-02-20 12:26:56,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 12:27:53,567 INFO L134 CoverageAnalysis]: Checked inductivity of 101576 backedges. 21753 proven. 79725 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2022-02-20 12:27:53,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 12:29:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 101576 backedges. 6004 proven. 95560 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-20 12:29:13,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [173077043] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 12:29:13,242 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 12:29:13,243 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [315, 327, 413] total 981 [2022-02-20 12:29:13,243 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849615270] [2022-02-20 12:29:13,243 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 12:29:13,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 981 states [2022-02-20 12:29:13,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 12:29:13,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 981 interpolants. [2022-02-20 12:29:13,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=242609, Invalid=718771, Unknown=0, NotChecked=0, Total=961380 [2022-02-20 12:29:13,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 12:29:13,317 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 12:29:13,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 981 states, 981 states have (on average 2.249745158002039) internal successors, (2207), 981 states have internal predecessors, (2207), 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) [2022-02-20 12:29:13,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 922 states. [2022-02-20 12:29:13,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 285 states. [2022-02-20 12:29:13,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.