/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/counter-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:14:41,348 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:14:41,351 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:14:41,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:14:41,384 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:14:41,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:14:41,388 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:14:41,390 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:14:41,391 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:14:41,394 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:14:41,394 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:14:41,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:14:41,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:14:41,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:14:41,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:14:41,400 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:14:41,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:14:41,401 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:14:41,403 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:14:41,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:14:41,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:14:41,409 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:14:41,410 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:14:41,411 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:14:41,415 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:14:41,421 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:14:41,421 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:14:41,421 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:14:41,422 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 [2022-03-16 22:14:41,445 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:14:41,446 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:14:41,446 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:14:41,446 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:14:41,447 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:14:41,447 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:14:41,447 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:14:41,447 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:14:41,447 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:14:41,447 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:14:41,448 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:14:41,449 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:14:41,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:14:41,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:14:41,449 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:14:41,449 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:14:41,449 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:14:41,450 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:14:41,450 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:14:41,451 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:14:41,451 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:14:41,451 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:14:41,451 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:14:41,451 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:14:41,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:14:41,632 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:14:41,633 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:14:41,634 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:14:41,634 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:14:41,635 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl [2022-03-16 22:14:41,635 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-fun.wvr.bpl' [2022-03-16 22:14:41,650 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:14:41,651 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:14:41,652 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:14:41,652 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:14:41,652 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:14:41,659 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,686 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:14:41,687 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:14:41,691 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:14:41,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:14:41,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:14:41,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,698 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,699 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,700 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,702 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,702 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:14:41,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:14:41,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:14:41,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:14:41,708 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/1) ... [2022-03-16 22:14:41,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:14:41,725 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:14:41,734 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) [2022-03-16 22:14:41,736 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 [2022-03-16 22:14:41,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:14:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:14:41,764 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:14:41,764 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:14:41,764 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:14:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:14:41,765 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:14:41,765 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:14:41,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:14:41,766 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:14:41,797 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:14:41,799 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:14:41,850 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:14:41,859 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:14:41,860 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:14:41,861 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:14:41 BoogieIcfgContainer [2022-03-16 22:14:41,861 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:14:41,862 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:14:41,862 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:14:41,865 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:14:41,865 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:14:41" (1/2) ... [2022-03-16 22:14:41,866 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e8bcdef and model type counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:14:41, skipping insertion in model container [2022-03-16 22:14:41,866 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:14:41" (2/2) ... [2022-03-16 22:14:41,867 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-fun.wvr.bpl [2022-03-16 22:14:41,870 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:14:41,870 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:14:41,870 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:14:41,870 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:14:41,889 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 22:14:41,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:14:41,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:14:41,918 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) [2022-03-16 22:14:41,919 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 [2022-03-16 22:14:41,949 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:14:41,954 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 [2022-03-16 22:14:41,954 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 22:14:42,137 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 124 transitions and produced 112 states. [2022-03-16 22:14:42,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:14:42,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:14:42,145 INFO L85 PathProgramCache]: Analyzing trace with hash -1969623997, now seen corresponding path program 1 times [2022-03-16 22:14:42,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:14:42,153 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [795450471] [2022-03-16 22:14:42,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:14:42,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:14:42,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:14:42,663 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 121 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 22:14:42,663 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:14:42,663 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [795450471] [2022-03-16 22:14:42,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [795450471] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:14:42,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [348279808] [2022-03-16 22:14:42,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:14:42,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:14:42,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:14:42,667 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) [2022-03-16 22:14:42,669 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:14:42,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:14:42,744 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-16 22:14:42,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:14:43,439 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 34 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:14:43,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:14:44,019 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 40 proven. 140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:14:44,019 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [348279808] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:14:44,019 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:14:44,020 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 22, 22] total 60 [2022-03-16 22:14:44,022 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211426540] [2022-03-16 22:14:44,022 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:14:44,026 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-03-16 22:14:44,026 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:14:44,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-03-16 22:14:44,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=869, Invalid=2791, Unknown=0, NotChecked=0, Total=3660 [2022-03-16 22:14:44,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:14:44,049 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:14:44,053 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.2295081967213113) internal successors, (136), 60 states have internal predecessors, (136), 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) [2022-03-16 22:14:44,053 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:14:45,422 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 155 states. [2022-03-16 22:14:45,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-03-16 22:14:45,442 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 22:14:45,623 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 [2022-03-16 22:14:45,623 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:14:45,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:14:45,624 INFO L85 PathProgramCache]: Analyzing trace with hash 1364439795, now seen corresponding path program 2 times [2022-03-16 22:14:45,624 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:14:45,624 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776979413] [2022-03-16 22:14:45,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:14:45,625 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:14:45,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:14:46,088 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 256 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:14:46,088 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:14:46,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776979413] [2022-03-16 22:14:46,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776979413] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:14:46,088 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [664939157] [2022-03-16 22:14:46,088 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:14:46,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:14:46,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:14:46,096 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) [2022-03-16 22:14:46,096 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:14:46,139 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:14:46,139 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:14:46,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 22:14:46,142 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:14:47,068 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:14:47,069 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:14:47,589 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:14:47,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [664939157] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:14:47,590 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:14:47,590 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 29] total 72 [2022-03-16 22:14:47,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925258136] [2022-03-16 22:14:47,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:14:47,591 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-16 22:14:47,591 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:14:47,592 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-16 22:14:47,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=4025, Unknown=0, NotChecked=0, Total=5256 [2022-03-16 22:14:47,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:14:47,594 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:14:47,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.136986301369863) internal successors, (156), 72 states have internal predecessors, (156), 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) [2022-03-16 22:14:47,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 48 states. [2022-03-16 22:14:47,594 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:14:48,862 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 396 transitions and produced 320 states. [2022-03-16 22:14:48,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:14:48,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:14:48,881 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:14:49,079 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 [2022-03-16 22:14:49,079 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:14:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:14:49,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1245508003, now seen corresponding path program 3 times [2022-03-16 22:14:49,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:14:49,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935446630] [2022-03-16 22:14:49,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:14:49,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:14:49,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:14:50,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2290 backedges. 1799 proven. 477 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-16 22:14:50,310 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:14:50,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935446630] [2022-03-16 22:14:50,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935446630] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:14:50,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1387787754] [2022-03-16 22:14:50,311 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:14:50,311 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:14:50,311 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:14:50,312 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) [2022-03-16 22:14:50,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:14:50,432 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 41 check-sat command(s) [2022-03-16 22:14:50,432 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:14:50,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 476 conjuncts, 68 conjunts are in the unsatisfiable core [2022-03-16 22:14:50,438 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:14:53,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2290 backedges. 303 proven. 1987 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:14:53,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:14:56,142 INFO L134 CoverageAnalysis]: Checked inductivity of 2290 backedges. 309 proven. 1981 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:14:56,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1387787754] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:14:56,143 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:14:56,143 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 68, 68] total 188 [2022-03-16 22:14:56,143 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991495302] [2022-03-16 22:14:56,143 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:14:56,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 189 states [2022-03-16 22:14:56,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:14:56,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2022-03-16 22:14:56,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8132, Invalid=27400, Unknown=0, NotChecked=0, Total=35532 [2022-03-16 22:14:56,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:14:56,152 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:14:56,153 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 189 states, 189 states have (on average 2.126984126984127) internal successors, (402), 188 states have internal predecessors, (402), 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) [2022-03-16 22:14:56,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:14:56,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:14:56,153 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:04,543 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 557 transitions and produced 443 states. [2022-03-16 22:15:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:15:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:15:04,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 153 states. [2022-03-16 22:15:04,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:15:04,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:04,748 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:04,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:04,748 INFO L85 PathProgramCache]: Analyzing trace with hash 1615998575, now seen corresponding path program 4 times [2022-03-16 22:15:04,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:04,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758594634] [2022-03-16 22:15:04,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:04,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:04,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 4058 backedges. 2209 proven. 1849 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:07,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:07,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758594634] [2022-03-16 22:15:07,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [758594634] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:07,293 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1087628940] [2022-03-16 22:15:07,293 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:15:07,293 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:07,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:07,294 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:07,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:15:07,384 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:15:07,384 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:07,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 658 conjuncts, 91 conjunts are in the unsatisfiable core [2022-03-16 22:15:07,391 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 4058 backedges. 2197 proven. 1849 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:15:13,192 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:15:16,293 INFO L134 CoverageAnalysis]: Checked inductivity of 4058 backedges. 2197 proven. 1849 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-16 22:15:16,293 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1087628940] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:15:16,293 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:15:16,294 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 91, 91] total 227 [2022-03-16 22:15:16,294 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764111101] [2022-03-16 22:15:16,294 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:15:16,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 228 states [2022-03-16 22:15:16,295 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:15:16,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 228 interpolants. [2022-03-16 22:15:16,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12298, Invalid=39458, Unknown=0, NotChecked=0, Total=51756 [2022-03-16 22:15:16,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:16,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:15:16,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 228 states, 228 states have (on average 2.043859649122807) internal successors, (466), 227 states have internal predecessors, (466), 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) [2022-03-16 22:15:16,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:15:16,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:15:16,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 153 states. [2022-03-16 22:15:16,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:15:24,301 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1178 transitions and produced 918 states. [2022-03-16 22:15:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:15:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:15:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2022-03-16 22:15:24,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-16 22:15:24,323 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 22:15:24,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:24,516 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:15:24,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:15:24,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2099722295, now seen corresponding path program 5 times [2022-03-16 22:15:24,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:15:24,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126152302] [2022-03-16 22:15:24,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:15:24,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:15:24,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:15:32,047 INFO L134 CoverageAnalysis]: Checked inductivity of 21800 backedges. 18129 proven. 3627 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-16 22:15:32,047 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:15:32,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126152302] [2022-03-16 22:15:32,048 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126152302] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:15:32,048 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [381372210] [2022-03-16 22:15:32,048 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:15:32,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:15:32,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:15:32,049 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:15:32,050 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:15:32,481 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 119 check-sat command(s) [2022-03-16 22:15:32,481 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:15:32,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1400 conjuncts, 200 conjunts are in the unsatisfiable core [2022-03-16 22:15:32,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:15:51,626 INFO L134 CoverageAnalysis]: Checked inductivity of 21800 backedges. 2374 proven. 19426 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:15:51,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:16:11,285 INFO L134 CoverageAnalysis]: Checked inductivity of 21800 backedges. 2380 proven. 19420 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:16:11,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [381372210] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:16:11,286 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:16:11,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [157, 200, 200] total 554 [2022-03-16 22:16:11,286 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216113154] [2022-03-16 22:16:11,286 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:16:11,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 555 states [2022-03-16 22:16:11,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:16:11,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 555 interpolants. [2022-03-16 22:16:11,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69733, Invalid=237737, Unknown=0, NotChecked=0, Total=307470 [2022-03-16 22:16:11,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:16:11,311 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:16:11,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 555 states, 555 states have (on average 2.097297297297297) internal successors, (1164), 554 states have internal predecessors, (1164), 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) [2022-03-16 22:16:11,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:16:11,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:16:11,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 210 states. [2022-03-16 22:16:11,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-03-16 22:16:11,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:17:36,497 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1649 transitions and produced 1295 states. [2022-03-16 22:17:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:17:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:17:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2022-03-16 22:17:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-16 22:17:36,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 460 states. [2022-03-16 22:17:36,517 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 22:17:36,698 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:17:36,699 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:17:36,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:17:36,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1061746907, now seen corresponding path program 6 times [2022-03-16 22:17:36,700 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:17:36,702 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883416293] [2022-03-16 22:17:36,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:17:36,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:17:37,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:17:56,128 INFO L134 CoverageAnalysis]: Checked inductivity of 37000 backedges. 19044 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:17:56,129 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:17:56,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883416293] [2022-03-16 22:17:56,129 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [883416293] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:17:56,129 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2043987391] [2022-03-16 22:17:56,129 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:17:56,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:17:56,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:17:56,130 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:17:56,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:17:57,189 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 139 check-sat command(s) [2022-03-16 22:17:57,190 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:17:57,210 INFO L263 TraceCheckSpWp]: Trace formula consists of 1932 conjuncts, 276 conjunts are in the unsatisfiable core [2022-03-16 22:17:57,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:18:44,403 INFO L134 CoverageAnalysis]: Checked inductivity of 37000 backedges. 19044 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:18:44,403 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:19:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 37000 backedges. 19044 proven. 17956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:19:09,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2043987391] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:19:09,427 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:19:09,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [276, 276, 276] total 690 [2022-03-16 22:19:09,427 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459210571] [2022-03-16 22:19:09,427 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:19:09,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 691 states [2022-03-16 22:19:09,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:19:09,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 691 interpolants. [2022-03-16 22:19:09,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114687, Invalid=362103, Unknown=0, NotChecked=0, Total=476790 [2022-03-16 22:19:09,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:19:09,464 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:19:09,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 691 states, 691 states have (on average 2.0144717800289436) internal successors, (1392), 690 states have internal predecessors, (1392), 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) [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 210 states. [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 460 states. [2022-03-16 22:19:09,465 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:20:24,704 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1677 transitions and produced 1313 states. [2022-03-16 22:20:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-16 22:20:24,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-16 22:20:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2022-03-16 22:20:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-03-16 22:20:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 460 states. [2022-03-16 22:20:24,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 414 states. [2022-03-16 22:20:24,735 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 22:20:24,924 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:20:24,925 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:20:24,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:20:24,925 INFO L85 PathProgramCache]: Analyzing trace with hash 1650525155, now seen corresponding path program 7 times [2022-03-16 22:20:24,925 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:20:24,925 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415774857] [2022-03-16 22:20:24,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:20:24,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:20:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:20:43,598 INFO L134 CoverageAnalysis]: Checked inductivity of 38088 backedges. 0 proven. 38088 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:20:43,599 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:20:43,599 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415774857] [2022-03-16 22:20:43,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415774857] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:20:43,602 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [59678399] [2022-03-16 22:20:43,602 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:20:43,602 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:20:43,602 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:20:43,603 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 22:20:43,604 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 22:20:43,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:20:43,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 1960 conjuncts, 831 conjunts are in the unsatisfiable core [2022-03-16 22:20:43,857 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-16 22:27:50,659 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 [2022-03-16 22:27:50,659 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:27:50,661 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 [2022-03-16 22:27:50,668 WARN L244 SmtUtils]: Removed 3 from assertion stack [2022-03-16 22:27:50,670 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 22:27:50,688 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-16 22:27:50,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 22:27:50,870 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 567 with TraceHistMax 138,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 417 for 2326ms.. [2022-03-16 22:27:50,872 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 22:27:50,872 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 22:27:50,877 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-16 22:27:50,879 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:27:50,879 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:27:50,880 INFO L202 PluginConnector]: Adding new model counter-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:27:50 BasicIcfg [2022-03-16 22:27:50,880 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:27:50,881 INFO L158 Benchmark]: Toolchain (without parser) took 789229.95ms. Allocated memory was 182.5MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 148.3MB in the beginning and 194.5MB in the end (delta: -46.2MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 22:27:50,881 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 149.4MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:27:50,881 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.67ms. Allocated memory is still 182.5MB. Free memory was 148.1MB in the beginning and 146.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:27:50,882 INFO L158 Benchmark]: Boogie Preprocessor took 11.31ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 145.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:27:50,882 INFO L158 Benchmark]: RCFGBuilder took 157.91ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 136.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 22:27:50,882 INFO L158 Benchmark]: TraceAbstraction took 789018.24ms. Allocated memory was 182.5MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 136.4MB in the beginning and 194.5MB in the end (delta: -58.1MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 22:27:50,883 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 0.09ms. Allocated memory is still 182.5MB. Free memory was 149.4MB in the beginning and 149.4MB in the end (delta: 69.4kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 35.67ms. Allocated memory is still 182.5MB. Free memory was 148.1MB in the beginning and 146.7MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.31ms. Allocated memory is still 182.5MB. Free memory was 146.7MB in the beginning and 145.7MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 157.91ms. Allocated memory is still 182.5MB. Free memory was 145.7MB in the beginning and 136.9MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 789018.24ms. Allocated memory was 182.5MB in the beginning and 1.5GB in the end (delta: 1.4GB). Free memory was 136.4MB in the beginning and 194.5MB in the end (delta: -58.1MB). Peak memory consumption was 1.3GB. 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: 53]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 567 with TraceHistMax 138,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 417 for 2326ms.. - TimeoutResultAtElement [Line: 48]: 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 567 with TraceHistMax 138,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 417 for 2326ms.. - TimeoutResultAtElement [Line: 48]: 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 567 with TraceHistMax 138,while TraceCheckSpWp was constructing forward predicates,while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 417 for 2326ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 789.0s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 179.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1332, 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: 0.1s SsaConstructionTime, 2.3s SatisfiabilityAnalysisTime, 159.3s InterpolantComputationTime, 2840 NumberOfCodeBlocks, 2840 NumberOfCodeBlocksAsserted, 309 NumberOfCheckSat, 4242 ConstructedInterpolants, 0 QuantifiedInterpolants, 37506 SizeOfPredicates, 42 NumberOfNonLiveVariables, 4844 ConjunctsInSsa, 686 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 90078/197184 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