/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 10:58:08,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 10:58:08,169 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 10:58:08,187 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 10:58:08,193 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 10:58:08,194 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 10:58:08,194 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 10:58:08,195 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 10:58:08,195 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 10:58:08,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 10:58:08,197 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 10:58:08,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 10:58:08,199 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 10:58:08,200 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 10:58:08,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 10:58:08,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 10:58:08,203 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 10:58:08,210 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 10:58:08,223 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 10:58:08,223 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 10:58:08,224 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 10:58:08,224 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 10:58:08,224 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 10:58:08,224 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 10:58:08,225 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 10:58:08,225 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 10:58:08,225 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 10:58:08,225 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 10:58:08,225 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 10:58:08,225 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 10:58:08,226 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 10:58:08,227 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 10:58:08,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 10:58:08,227 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 10:58:08,228 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 10:58:08,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 10:58:08,228 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 10:58:08,228 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 10:58:08,228 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 10:58:08,229 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 10:58:08,229 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 10:58:08,229 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 10:58:08,408 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 10:58:08,423 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 10:58:08,424 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 10:58:08,425 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 10:58:08,426 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 10:58:08,426 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl [2022-03-16 10:58:08,427 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled.wvr.bpl' [2022-03-16 10:58:08,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 10:58:08,445 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 10:58:08,445 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 10:58:08,445 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 10:58:08,445 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 10:58:08,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,458 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,462 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 10:58:08,463 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 10:58:08,464 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 10:58:08,464 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 10:58:08,464 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 10:58:08,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,469 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,469 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,469 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,472 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 10:58:08,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 10:58:08,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 10:58:08,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 10:58:08,477 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/1) ... [2022-03-16 10:58:08,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 10:58:08,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:58:08,512 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 10:58:08,516 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 10:58:08,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 10:58:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 10:58:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 10:58:08,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 10:58:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 10:58:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 10:58:08,535 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 10:58:08,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 10:58:08,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 10:58:08,536 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 10:58:08,567 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 10:58:08,568 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 10:58:08,671 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 10:58:08,679 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 10:58:08,681 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 10:58:08,682 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:58:08 BoogieIcfgContainer [2022-03-16 10:58:08,682 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 10:58:08,683 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 10:58:08,683 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 10:58:08,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 10:58:08,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:58:08" (1/2) ... [2022-03-16 10:58:08,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b2ba66e and model type misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:58:08, skipping insertion in model container [2022-03-16 10:58:08,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:58:08" (2/2) ... [2022-03-16 10:58:08,693 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled.wvr.bpl [2022-03-16 10:58:08,696 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 10:58:08,697 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 10:58:08,697 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 10:58:08,697 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 10:58:08,737 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 10:58:08,774 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 10:58:08,775 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:58:08,776 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 10:58:08,778 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 10:58:08,806 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 10:58:08,811 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-03-16 10:58:08,811 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 10:58:08,918 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1114 transitions and produced 846 states. [2022-03-16 10:58:08,920 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 10:58:08,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:58:08,931 INFO L85 PathProgramCache]: Analyzing trace with hash -106007834, now seen corresponding path program 1 times [2022-03-16 10:58:08,937 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:58:08,937 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533714569] [2022-03-16 10:58:08,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:58:08,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:58:09,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:58:12,560 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:58:12,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:58:12,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533714569] [2022-03-16 10:58:12,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533714569] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:58:12,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609113881] [2022-03-16 10:58:12,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:58:12,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:58:12,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:58:12,563 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 10:58:12,567 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 10:58:12,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:58:12,763 INFO L263 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 110 conjunts are in the unsatisfiable core [2022-03-16 10:58:12,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:58:13,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:58:13,465 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 10:58:19,531 INFO L134 CoverageAnalysis]: Checked inductivity of 5769 backedges. 5498 proven. 271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:58:19,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609113881] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 10:58:19,532 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 10:58:19,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91, 108] total 198 [2022-03-16 10:58:19,533 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58210986] [2022-03-16 10:58:19,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 10:58:19,541 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 199 states [2022-03-16 10:58:19,541 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 10:58:19,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 199 interpolants. [2022-03-16 10:58:19,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18172, Invalid=21230, Unknown=0, NotChecked=0, Total=39402 [2022-03-16 10:58:19,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:58:19,590 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 10:58:19,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 199 states, 199 states have (on average 2.798994974874372) internal successors, (557), 198 states have internal predecessors, (557), 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 10:58:19,592 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:58:32,486 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1496 transitions and produced 1298 states. [2022-03-16 10:58:32,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 294 states. [2022-03-16 10:58:32,506 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 10:58:32,706 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 10:58:32,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 10:58:32,711 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:58:32,711 INFO L85 PathProgramCache]: Analyzing trace with hash 1228101904, now seen corresponding path program 2 times [2022-03-16 10:58:32,711 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:58:32,711 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743437476] [2022-03-16 10:58:32,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:58:32,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:58:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:58:44,688 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 11799 proven. 4774 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:58:44,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:58:44,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743437476] [2022-03-16 10:58:44,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743437476] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:58:44,690 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1252760997] [2022-03-16 10:58:44,690 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 10:58:44,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:58:44,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:58:44,711 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 10:58:44,712 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 10:58:44,881 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 10:58:44,881 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 10:58:44,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 1043 conjuncts, 180 conjunts are in the unsatisfiable core [2022-03-16 10:58:44,901 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:58:45,586 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 10299 proven. 4774 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-03-16 10:58:45,586 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 10:58:54,444 INFO L134 CoverageAnalysis]: Checked inductivity of 16573 backedges. 10299 proven. 4774 refuted. 0 times theorem prover too weak. 1500 trivial. 0 not checked. [2022-03-16 10:58:54,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1252760997] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 10:58:54,445 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 10:58:54,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [227, 179, 179] total 316 [2022-03-16 10:58:54,445 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233562513] [2022-03-16 10:58:54,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 10:58:54,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 317 states [2022-03-16 10:58:54,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 10:58:54,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 317 interpolants. [2022-03-16 10:58:54,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25700, Invalid=74472, Unknown=0, NotChecked=0, Total=100172 [2022-03-16 10:58:54,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:58:54,473 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 10:58:54,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 317 states, 317 states have (on average 2.529968454258675) internal successors, (802), 316 states have internal predecessors, (802), 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 10:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 294 states. [2022-03-16 10:58:54,474 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 10:59:19,241 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9612 transitions and produced 5580 states. [2022-03-16 10:59:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-16 10:59:19,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-16 10:59:19,277 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 10:59:19,460 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 10:59:19,460 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 10:59:19,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 10:59:19,461 INFO L85 PathProgramCache]: Analyzing trace with hash -1615244582, now seen corresponding path program 3 times [2022-03-16 10:59:19,461 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 10:59:19,461 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716411946] [2022-03-16 10:59:19,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 10:59:19,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 10:59:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 10:59:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:59:37,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 10:59:37,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716411946] [2022-03-16 10:59:37,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716411946] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 10:59:37,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [356854193] [2022-03-16 10:59:37,691 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 10:59:37,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 10:59:37,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 10:59:37,693 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 10:59:37,694 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 10:59:38,101 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 83 check-sat command(s) [2022-03-16 10:59:38,101 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 10:59:38,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1421 conjuncts, 312 conjunts are in the unsatisfiable core [2022-03-16 10:59:38,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 10:59:39,658 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 10:59:39,658 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:00:00,049 INFO L134 CoverageAnalysis]: Checked inductivity of 29900 backedges. 16308 proven. 13592 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:00:00,050 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [356854193] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:00:00,050 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:00:00,050 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [297, 297, 311] total 483 [2022-03-16 11:00:00,050 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321929173] [2022-03-16 11:00:00,050 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:00:00,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 484 states [2022-03-16 11:00:00,052 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:00:00,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 484 interpolants. [2022-03-16 11:00:00,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66016, Invalid=167756, Unknown=0, NotChecked=0, Total=233772 [2022-03-16 11:00:00,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:00:00,074 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:00:00,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 484 states, 484 states have (on average 2.605371900826446) internal successors, (1261), 483 states have internal predecessors, (1261), 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 11:00:00,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:00:00,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:00:00,076 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:00:50,466 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2197 transitions and produced 1818 states. [2022-03-16 11:00:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:00:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:00:50,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 327 states. [2022-03-16 11:00:50,486 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 11:00:50,683 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 11:00:50,684 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:00:50,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:00:50,684 INFO L85 PathProgramCache]: Analyzing trace with hash 229666541, now seen corresponding path program 4 times [2022-03-16 11:00:50,684 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:00:50,685 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513735275] [2022-03-16 11:00:50,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:00:50,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:00:50,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:01:08,367 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16687 proven. 15484 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:01:08,368 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:01:08,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513735275] [2022-03-16 11:01:08,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513735275] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:01:08,368 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1093074139] [2022-03-16 11:01:08,368 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:01:08,368 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:01:08,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:01:08,369 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 11:01:08,370 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 11:01:08,585 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:01:08,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:01:08,602 INFO L263 TraceCheckSpWp]: Trace formula consists of 1475 conjuncts, 320 conjunts are in the unsatisfiable core [2022-03-16 11:01:08,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:01:09,869 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16672 proven. 15484 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-16 11:01:09,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:01:29,381 INFO L134 CoverageAnalysis]: Checked inductivity of 32171 backedges. 16672 proven. 15484 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-03-16 11:01:29,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1093074139] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:01:29,381 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:01:29,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [323, 319, 319] total 482 [2022-03-16 11:01:29,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039118922] [2022-03-16 11:01:29,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:01:29,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 483 states [2022-03-16 11:01:29,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:01:29,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 483 interpolants. [2022-03-16 11:01:29,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64569, Invalid=168237, Unknown=0, NotChecked=0, Total=232806 [2022-03-16 11:01:29,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:01:29,405 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:01:29,406 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 483 states, 483 states have (on average 2.5196687370600412) internal successors, (1217), 482 states have internal predecessors, (1217), 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 11:01:29,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:01:29,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:01:29,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 327 states. [2022-03-16 11:01:29,406 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:02:33,295 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9945 transitions and produced 6147 states. [2022-03-16 11:02:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:02:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:02:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:02:33,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:02:33,313 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 11:02:33,498 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 11:02:33,498 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:02:33,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:02:33,498 INFO L85 PathProgramCache]: Analyzing trace with hash -488485469, now seen corresponding path program 5 times [2022-03-16 11:02:33,499 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:02:33,499 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1298026082] [2022-03-16 11:02:33,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:02:33,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:02:33,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:02:58,824 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 33493 proven. 18915 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:02:58,824 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:02:58,825 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1298026082] [2022-03-16 11:02:58,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1298026082] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:02:58,828 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1014090879] [2022-03-16 11:02:58,828 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:02:58,828 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:02:58,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:02:58,836 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 11:02:58,837 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 11:02:59,385 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 118 check-sat command(s) [2022-03-16 11:02:59,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:02:59,412 INFO L263 TraceCheckSpWp]: Trace formula consists of 1853 conjuncts, 348 conjunts are in the unsatisfiable core [2022-03-16 11:02:59,423 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:03:09,138 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 18361 proven. 33762 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-03-16 11:03:09,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:03:32,321 INFO L134 CoverageAnalysis]: Checked inductivity of 52408 backedges. 18361 proven. 33762 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2022-03-16 11:03:32,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1014090879] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:03:32,323 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:03:32,323 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [393, 345, 347] total 627 [2022-03-16 11:03:32,323 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986827139] [2022-03-16 11:03:32,323 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:03:32,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 628 states [2022-03-16 11:03:32,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:03:32,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 628 interpolants. [2022-03-16 11:03:32,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=106476, Invalid=287280, Unknown=0, NotChecked=0, Total=393756 [2022-03-16 11:03:32,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:03:32,362 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:03:32,363 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 628 states, 628 states have (on average 2.6321656050955413) internal successors, (1653), 627 states have internal predecessors, (1653), 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 11:03:32,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:03:32,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:03:32,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:03:32,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:03:32,363 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:05:46,924 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3098 transitions and produced 2514 states. [2022-03-16 11:05:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:05:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:05:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:05:46,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:05:46,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-16 11:05:46,944 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 11:05:47,131 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 11:05:47,132 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:05:47,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:05:47,133 INFO L85 PathProgramCache]: Analyzing trace with hash 157286896, now seen corresponding path program 6 times [2022-03-16 11:05:47,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:05:47,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1412452664] [2022-03-16 11:05:47,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:05:47,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:05:47,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:06:21,087 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:06:21,087 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:06:21,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1412452664] [2022-03-16 11:06:21,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1412452664] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:06:21,087 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1594943144] [2022-03-16 11:06:21,088 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:06:21,088 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:06:21,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:06:21,089 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 11:06:21,090 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 11:06:21,760 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 115 check-sat command(s) [2022-03-16 11:06:21,760 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:06:21,799 INFO L263 TraceCheckSpWp]: Trace formula consists of 2069 conjuncts, 456 conjunts are in the unsatisfiable core [2022-03-16 11:06:21,811 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:06:23,084 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:06:23,084 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:07:03,238 INFO L134 CoverageAnalysis]: Checked inductivity of 64072 backedges. 31753 proven. 32319 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:07:03,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1594943144] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:07:03,238 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:07:03,238 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [455, 455, 455] total 682 [2022-03-16 11:07:03,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [729615863] [2022-03-16 11:07:03,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:07:03,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 683 states [2022-03-16 11:07:03,241 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:07:03,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 683 interpolants. [2022-03-16 11:07:03,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=129845, Invalid=335961, Unknown=0, NotChecked=0, Total=465806 [2022-03-16 11:07:03,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:07:03,284 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:07:03,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 683 states, 683 states have (on average 2.5109809663250364) internal successors, (1715), 682 states have internal predecessors, (1715), 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 11:07:03,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:07:03,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:07:03,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:07:03,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:07:03,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-16 11:07:03,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:09:04,864 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3105 transitions and produced 2521 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 455 states. [2022-03-16 11:09:04,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 457 states. [2022-03-16 11:09:04,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 11:09:05,079 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 11:09:05,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:09:05,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:09:05,080 INFO L85 PathProgramCache]: Analyzing trace with hash 1738174098, now seen corresponding path program 7 times [2022-03-16 11:09:05,080 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:09:05,080 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1127738308] [2022-03-16 11:09:05,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:09:05,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:09:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:09:07,170 INFO L134 CoverageAnalysis]: Checked inductivity of 64638 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 64638 trivial. 0 not checked. [2022-03-16 11:09:07,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:09:07,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1127738308] [2022-03-16 11:09:07,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1127738308] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 11:09:07,171 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 11:09:07,171 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-16 11:09:07,171 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704032465] [2022-03-16 11:09:07,171 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 11:09:07,171 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-16 11:09:07,172 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:09:07,172 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-16 11:09:07,172 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-03-16 11:09:07,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:09:07,172 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:09:07,172 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.2) internal successors, (21), 4 states have internal predecessors, (21), 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 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 464 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 424 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 400 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 455 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 457 states. [2022-03-16 11:09:07,172 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 11:12:18,740 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 11:12:18,741 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 11:12:19,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-16 11:12:19,353 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1150 known predicates. [2022-03-16 11:12:19,355 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 11:12:19,355 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 11:12:19,355 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 11:12:19,359 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-16 11:12:19,360 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 11:12:19,360 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 11:12:19,366 INFO L202 PluginConnector]: Adding new model misc-2-unrolled.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:12:19 BasicIcfg [2022-03-16 11:12:19,366 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 11:12:19,367 INFO L158 Benchmark]: Toolchain (without parser) took 850922.01ms. Allocated memory was 194.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 159.0MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 11:12:19,367 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:12:19,367 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.50ms. Allocated memory is still 194.0MB. Free memory was 158.8MB in the beginning and 157.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:12:19,373 INFO L158 Benchmark]: Boogie Preprocessor took 11.80ms. Allocated memory is still 194.0MB. Free memory was 157.3MB in the beginning and 156.4MB in the end (delta: 879.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:12:19,373 INFO L158 Benchmark]: RCFGBuilder took 205.75ms. Allocated memory is still 194.0MB. Free memory was 156.4MB in the beginning and 147.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 11:12:19,373 INFO L158 Benchmark]: TraceAbstraction took 850683.12ms. Allocated memory was 194.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 147.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 11:12:19,374 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 0.10ms. Allocated memory is still 194.0MB. Free memory is still 160.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.50ms. Allocated memory is still 194.0MB. Free memory was 158.8MB in the beginning and 157.3MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.80ms. Allocated memory is still 194.0MB. Free memory was 157.3MB in the beginning and 156.4MB in the end (delta: 879.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 205.75ms. Allocated memory is still 194.0MB. Free memory was 156.4MB in the beginning and 147.9MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 850683.12ms. Allocated memory was 194.0MB in the beginning and 3.8GB in the end (delta: 3.6GB). Free memory was 147.3MB in the beginning and 2.4GB in the end (delta: -2.3GB). 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: 45]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1150 known predicates. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1150 known predicates. - TimeoutResultAtElement [Line: 40]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1150 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 40 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 850.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 600.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2655, 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: 0.3s SsaConstructionTime, 4.5s SatisfiabilityAnalysisTime, 243.5s InterpolantComputationTime, 10413 NumberOfCodeBlocks, 10413 NumberOfCodeBlocksAsserted, 327 NumberOfCheckSat, 15025 ConstructedInterpolants, 0 QuantifiedInterpolants, 111639 SizeOfPredicates, 18 NumberOfNonLiveVariables, 8373 ConjunctsInSsa, 1726 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 381558/667317 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