/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/buffer-mult.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:38:51,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:38:51,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:38:51,714 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-02 10:38:51,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:38:51,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:38:51,728 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:38:51,729 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:38:51,730 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:38:51,731 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:38:51,732 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:38:51,734 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:38:51,735 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:38:51,745 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:38:51,746 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:38:51,747 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:38:51,749 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:38:51,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:38:51,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:38:51,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:38:51,761 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 [2022-03-02 10:38:51,786 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:38:51,787 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:38:51,788 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:38:51,788 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:38:51,788 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:38:51,789 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:38:51,789 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:38:51,789 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:38:51,789 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:38:51,789 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:38:51,790 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:38:51,790 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:38:51,790 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:38:51,791 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:38:51,792 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:38:51,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:38:51,792 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:38:51,793 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:38:51,794 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:38:51,794 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:38:51,794 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:38:51,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:38:52,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:38:52,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:38:52,019 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:38:52,020 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:38:52,021 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl [2022-03-02 10:38:52,021 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-mult.wvr.bpl' [2022-03-02 10:38:52,057 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:38:52,059 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:38:52,060 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:38:52,060 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:38:52,060 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:38:52,071 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,087 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:38:52,089 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:38:52,091 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:38:52,091 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:38:52,092 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:38:52,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,098 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,100 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,101 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,106 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,107 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:38:52,108 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:38:52,109 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:38:52,109 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:38:52,109 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/1) ... [2022-03-02 10:38:52,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:38:52,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:38:52,145 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) [2022-03-02 10:38:52,164 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 [2022-03-02 10:38:52,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:38:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:38:52,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:38:52,182 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:38:52,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:38:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:38:52,183 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:38:52,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:38:52,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:38:52,183 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 10:38:52,184 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 10:38:52,184 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 10:38:52,184 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-02 10:38:52,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-02 10:38:52,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-02 10:38:52,187 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:38:52,234 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:38:52,235 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:38:52,367 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:38:52,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:38:52,383 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:38:52,385 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:38:52 BoogieIcfgContainer [2022-03-02 10:38:52,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:38:52,387 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:38:52,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:38:52,390 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:38:52,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:38:52" (1/2) ... [2022-03-02 10:38:52,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bd2939 and model type buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:38:52, skipping insertion in model container [2022-03-02 10:38:52,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:38:52" (2/2) ... [2022-03-02 10:38:52,392 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult.wvr.bpl [2022-03-02 10:38:52,396 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:38:52,397 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:38:52,397 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:38:52,397 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:38:52,433 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-02 10:38:52,469 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:38:52,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:38:52,471 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) [2022-03-02 10:38:52,529 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 [2022-03-02 10:38:52,547 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:38:52,554 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 [2022-03-02 10:38:52,554 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-02 10:38:53,288 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1423 transitions and produced 1337 states. [2022-03-02 10:38:53,291 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:38:53,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:38:53,298 INFO L85 PathProgramCache]: Analyzing trace with hash 447327611, now seen corresponding path program 1 times [2022-03-02 10:38:53,305 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:38:53,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246408170] [2022-03-02 10:38:53,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:38:53,307 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:38:53,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:38:53,804 INFO L134 CoverageAnalysis]: Checked inductivity of 8516 backedges. 2740 proven. 0 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2022-03-02 10:38:53,804 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:38:53,805 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246408170] [2022-03-02 10:38:53,805 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246408170] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-02 10:38:53,806 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-02 10:38:53,806 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-02 10:38:53,808 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335724645] [2022-03-02 10:38:53,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-02 10:38:53,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-02 10:38:53,849 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:38:53,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-02 10:38:53,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-02 10:38:53,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:38:53,884 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:38:53,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-03-02 10:38:53,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:38:54,907 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2761 transitions and produced 2417 states. [2022-03-02 10:38:54,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:38:54,908 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-02 10:38:54,909 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:38:54,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:38:54,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1730886557, now seen corresponding path program 2 times [2022-03-02 10:38:54,912 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:38:54,912 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243848561] [2022-03-02 10:38:54,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:38:54,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:38:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:38:55,754 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 20513 proven. 8891 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-03-02 10:38:55,754 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:38:55,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243848561] [2022-03-02 10:38:55,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243848561] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:38:55,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1735194956] [2022-03-02 10:38:55,755 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:38:55,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:38:55,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:38:55,759 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) [2022-03-02 10:38:55,799 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:38:56,044 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:38:56,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:38:56,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 52 conjunts are in the unsatisfiable core [2022-03-02 10:38:56,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:38:58,759 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 13334 proven. 2356 refuted. 0 times theorem prover too weak. 17020 trivial. 0 not checked. [2022-03-02 10:38:58,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:39:00,867 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 15624 proven. 48 refuted. 0 times theorem prover too weak. 17038 trivial. 0 not checked. [2022-03-02 10:39:00,867 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1735194956] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:39:00,867 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:39:00,868 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 51, 39] total 103 [2022-03-02 10:39:00,869 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408494215] [2022-03-02 10:39:00,869 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:39:00,872 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 104 states [2022-03-02 10:39:00,872 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:39:00,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 104 interpolants. [2022-03-02 10:39:00,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2919, Invalid=7793, Unknown=0, NotChecked=0, Total=10712 [2022-03-02 10:39:00,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:00,879 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:39:00,880 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 104 states, 104 states have (on average 3.8846153846153846) internal successors, (404), 103 states have internal predecessors, (404), 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) [2022-03-02 10:39:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:39:00,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:08,675 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2939 transitions and produced 2389 states. [2022-03-02 10:39:08,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:39:08,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:39:08,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:39:08,887 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,SelfDestructingSolverStorable1 [2022-03-02 10:39:08,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:39:08,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:39:08,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1020910943, now seen corresponding path program 3 times [2022-03-02 10:39:08,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:39:08,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291903172] [2022-03-02 10:39:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:39:08,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:39:09,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:39:25,683 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 10437 proven. 11346 refuted. 0 times theorem prover too weak. 2669 trivial. 0 not checked. [2022-03-02 10:39:25,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:39:25,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291903172] [2022-03-02 10:39:25,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [291903172] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:39:25,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896447961] [2022-03-02 10:39:25,684 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:39:25,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:39:25,684 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:39:25,685 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) [2022-03-02 10:39:25,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:39:25,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 23 check-sat command(s) [2022-03-02 10:39:25,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:39:25,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 435 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-02 10:39:25,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:39:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-02 10:39:27,559 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:39:28,398 INFO L134 CoverageAnalysis]: Checked inductivity of 24452 backedges. 5004 proven. 65 refuted. 0 times theorem prover too weak. 19383 trivial. 0 not checked. [2022-03-02 10:39:28,399 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896447961] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:39:28,399 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:39:28,399 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [242, 13, 13] total 257 [2022-03-02 10:39:28,399 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148200406] [2022-03-02 10:39:28,400 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:39:28,401 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 257 states [2022-03-02 10:39:28,401 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:39:28,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 257 interpolants. [2022-03-02 10:39:28,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13885, Invalid=51907, Unknown=0, NotChecked=0, Total=65792 [2022-03-02 10:39:28,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:39:28,415 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:39:28,415 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 257 states, 257 states have (on average 1.972762645914397) internal successors, (507), 257 states have internal predecessors, (507), 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) [2022-03-02 10:39:28,415 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:39:28,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:39:28,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:40:20,061 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3847 transitions and produced 3338 states. [2022-03-02 10:40:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:40:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:40:20,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 672 states. [2022-03-02 10:40:20,079 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-02 10:40:20,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:40:20,268 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:40:20,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:40:20,268 INFO L85 PathProgramCache]: Analyzing trace with hash 924734159, now seen corresponding path program 4 times [2022-03-02 10:40:20,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:40:20,269 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [146247168] [2022-03-02 10:40:20,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:40:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:40:20,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:41:01,311 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 13474 proven. 29623 refuted. 0 times theorem prover too weak. 2667 trivial. 0 not checked. [2022-03-02 10:41:01,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:41:01,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [146247168] [2022-03-02 10:41:01,311 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [146247168] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:41:01,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529122719] [2022-03-02 10:41:01,311 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:41:01,312 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:41:01,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:41:01,313 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) [2022-03-02 10:41:01,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:41:01,586 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:41:01,586 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:41:01,595 INFO L263 TraceCheckSpWp]: Trace formula consists of 2090 conjuncts, 90 conjunts are in the unsatisfiable core [2022-03-02 10:41:01,604 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:41:18,765 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-02 10:41:18,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:41:37,436 INFO L134 CoverageAnalysis]: Checked inductivity of 45764 backedges. 14582 proven. 2752 refuted. 0 times theorem prover too weak. 28430 trivial. 0 not checked. [2022-03-02 10:41:37,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529122719] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:41:37,437 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:41:37,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [396, 89, 89] total 572 [2022-03-02 10:41:37,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [137418133] [2022-03-02 10:41:37,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:41:37,439 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 573 states [2022-03-02 10:41:37,439 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:41:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 573 interpolants. [2022-03-02 10:41:37,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32748, Invalid=295008, Unknown=0, NotChecked=0, Total=327756 [2022-03-02 10:41:37,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:41:37,468 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:41:37,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 573 states, 573 states have (on average 2.155322862129145) internal successors, (1235), 572 states have internal predecessors, (1235), 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) [2022-03-02 10:41:37,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:41:37,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-02 10:41:37,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 672 states. [2022-03-02 10:41:37,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:42:20,854 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 37272 transitions and produced 29605 states. [2022-03-02 10:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-02 10:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2022-03-02 10:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 682 states. [2022-03-02 10:42:20,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 317 states. [2022-03-02 10:42:20,873 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-02 10:42:21,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:42:21,056 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:42:21,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:42:21,057 INFO L85 PathProgramCache]: Analyzing trace with hash -1049204283, now seen corresponding path program 5 times [2022-03-02 10:42:21,057 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:42:21,057 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455700078] [2022-03-02 10:42:21,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:42:21,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:42:38,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-02 10:50:11,928 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-02 10:50:11,929 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-02 10:50:11,929 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. [2022-03-02 10:50:11,930 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-02 10:50:11,930 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-02 10:50:11,930 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-02 10:50:11,930 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-02 10:50:11,936 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-02 10:50:11,938 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:50:11,938 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:50:11,938 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 [2022-03-02 10:50:11,938 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 [2022-03-02 10:50:11,944 INFO L202 PluginConnector]: Adding new model buffer-mult.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:50:11 BasicIcfg [2022-03-02 10:50:11,944 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:50:11,945 INFO L158 Benchmark]: Toolchain (without parser) took 679886.23ms. Allocated memory was 186.6MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 146.8MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-03-02 10:50:11,945 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:50:11,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.01ms. Allocated memory is still 186.6MB. Free memory was 146.8MB in the beginning and 145.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-02 10:50:11,946 INFO L158 Benchmark]: Boogie Preprocessor took 16.32ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 144.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:50:11,946 INFO L158 Benchmark]: RCFGBuilder took 276.87ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 134.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 10:50:11,947 INFO L158 Benchmark]: TraceAbstraction took 679557.45ms. Allocated memory was 186.6MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 133.7MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 2.7GB. Max. memory is 8.0GB. [2022-03-02 10:50:11,949 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 0.12ms. Allocated memory is still 186.6MB. Free memory is still 148.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.01ms. Allocated memory is still 186.6MB. Free memory was 146.8MB in the beginning and 145.2MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.32ms. Allocated memory is still 186.6MB. Free memory was 145.2MB in the beginning and 144.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 276.87ms. Allocated memory is still 186.6MB. Free memory was 144.2MB in the beginning and 134.2MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 679557.45ms. Allocated memory was 186.6MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 133.7MB in the beginning and 4.4GB in the end (delta: -4.3GB). Peak memory consumption was 2.7GB. 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: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. - TimeoutResultAtElement [Line: 73]: 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 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. - TimeoutResultAtElement [Line: 73]: 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 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. - TimeoutResultAtElement [Line: 74]: 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 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. - TimeoutResultAtElement [Line: 75]: 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 6606 with TraceHistMax 1768,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 1131 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 679.5s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 104.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1176, 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: 0.2s SsaConstructionTime, 1.7s SatisfiabilityAnalysisTime, 100.9s InterpolantComputationTime, 4140 NumberOfCodeBlocks, 3770 NumberOfCodeBlocksAsserted, 30 NumberOfCheckSat, 6058 ConstructedInterpolants, 0 QuantifiedInterpolants, 25324 SizeOfPredicates, 8 NumberOfNonLiveVariables, 3963 ConjunctsInSsa, 169 ConjunctsInUnsatCore, 10 InterpolantComputations, 1 PerfectInterpolantSequences, 259396/317294 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