/usr/bin/java -Xmx16000000000 -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-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 15:49:54,951 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 15:49:54,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 15:49:54,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 15:49:55,036 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-18 15:49:55,036 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-18 15:49:55,037 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-18 15:49:55,037 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-FA-NoLbe-Separate.epf [2022-01-18 15:49:55,065 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 15:49:55,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 15:49:55,065 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 15:49:55,065 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 15:49:55,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 15:49:55,066 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 15:49:55,066 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 15:49:55,066 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 15:49:55,066 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 15:49:55,066 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 15:49:55,067 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 15:49:55,068 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 15:49:55,068 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 15:49:55,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 15:49:55,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 15:49:55,070 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 15:49:55,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 15:49:55,070 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2022-01-18 15:49:55,070 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 15:49:55,244 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 15:49:55,261 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 15:49:55,263 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 15:49:55,263 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 15:49:55,265 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 15:49:55,266 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl [2022-01-18 15:49:55,266 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/ticket-7.wvr.bpl' [2022-01-18 15:49:55,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 15:49:55,292 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 15:49:55,293 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 15:49:55,294 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 15:49:55,294 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 15:49:55,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,306 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,310 INFO L137 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 15:49:55,311 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 15:49:55,312 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 15:49:55,312 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 15:49:55,312 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 15:49:55,317 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,324 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,324 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,327 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,329 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 15:49:55,330 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 15:49:55,330 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 15:49:55,330 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 15:49:55,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/1) ... [2022-01-18 15:49:55,337 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 15:49:55,343 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 15:49:55,351 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) [2022-01-18 15:49:55,359 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 [2022-01-18 15:49:55,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-18 15:49:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-18 15:49:55,374 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-18 15:49:55,374 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-18 15:49:55,374 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-18 15:49:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-18 15:49:55,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 15:49:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 15:49:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 15:49:55,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-01-18 15:49:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-18 15:49:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-18 15:49:55,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-01-18 15:49:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-18 15:49:55,375 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-18 15:49:55,375 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2022-01-18 15:49:55,375 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-18 15:49:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-18 15:49:55,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread6 given in one single declaration [2022-01-18 15:49:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-01-18 15:49:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-01-18 15:49:55,376 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread7 given in one single declaration [2022-01-18 15:49:55,376 INFO L130 BoogieDeclarations]: Found specification of procedure thread7 [2022-01-18 15:49:55,376 INFO L138 BoogieDeclarations]: Found implementation of procedure thread7 [2022-01-18 15:49:55,377 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 15:49:55,410 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 15:49:55,411 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 15:49:55,498 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 15:49:55,512 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 15:49:55,512 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 15:49:55,514 INFO L202 PluginConnector]: Adding new model ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:49:55 BoogieIcfgContainer [2022-01-18 15:49:55,514 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 15:49:55,515 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 15:49:55,515 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 15:49:55,517 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 15:49:55,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:49:55" (1/2) ... [2022-01-18 15:49:55,531 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45f4c181 and model type ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:49:55, skipping insertion in model container [2022-01-18 15:49:55,532 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ticket-7.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:49:55" (2/2) ... [2022-01-18 15:49:55,533 INFO L111 eAbstractionObserver]: Analyzing ICFG ticket-7.wvr.bpl [2022-01-18 15:49:55,536 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 15:49:55,536 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 15:49:55,536 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-18 15:49:55,536 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 15:49:55,610 INFO L148 ThreadInstanceAdder]: Constructed 7 joinOtherThreadTransitions. [2022-01-18 15:49:55,647 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 15:49:55,652 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=FINITE_AUTOMATA, 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 [2022-01-18 15:49:55,652 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-01-18 15:49:55,659 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 84 places, 62 transitions, 180 flow [2022-01-18 15:50:10,615 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 447900 states, 447899 states have (on average 5.854154619679883) internal successors, (2622070), 447899 states have internal predecessors, (2622070), 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) [2022-01-18 15:50:11,384 INFO L276 IsEmpty]: Start isEmpty. Operand has 447900 states, 447899 states have (on average 5.854154619679883) internal successors, (2622070), 447899 states have internal predecessors, (2622070), 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) [2022-01-18 15:50:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 15:50:14,614 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:50:14,615 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:50:14,615 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-01-18 15:50:14,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:50:14,619 INFO L85 PathProgramCache]: Analyzing trace with hash -1985205125, now seen corresponding path program 1 times [2022-01-18 15:50:14,625 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:50:14,625 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530652660] [2022-01-18 15:50:14,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:50:14,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:50:14,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:50:14,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:50:14,847 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:50:14,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530652660] [2022-01-18 15:50:14,847 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1530652660] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:50:14,847 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:50:14,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-18 15:50:14,848 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [651260962] [2022-01-18 15:50:14,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:50:14,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-18 15:50:14,851 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:50:14,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-18 15:50:14,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-18 15:50:15,877 INFO L87 Difference]: Start difference. First operand has 447900 states, 447899 states have (on average 5.854154619679883) internal successors, (2622070), 447899 states have internal predecessors, (2622070), 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) Second operand has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) [2022-01-18 15:50:39,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 15:50:39,421 INFO L93 Difference]: Finished difference Result 1315956 states and 7633405 transitions. [2022-01-18 15:50:39,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-18 15:50:39,424 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) Word has length 53 [2022-01-18 15:50:39,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 15:50:54,140 INFO L225 Difference]: With dead ends: 1315956 [2022-01-18 15:50:54,140 INFO L226 Difference]: Without dead ends: 1315956 [2022-01-18 15:50:54,143 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-18 15:50:54,148 INFO L933 BasicCegarLoop]: 53 mSDtfsCounter, 84 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 84 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-01-18 15:50:54,149 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [84 Valid, 176 Invalid, 403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-01-18 15:50:57,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1315956 states. [2022-01-18 15:51:41,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1315956 to 628903. [2022-01-18 15:51:44,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 628903 states, 628902 states have (on average 5.790536522383456) internal successors, (3641680), 628902 states have internal predecessors, (3641680), 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) [2022-01-18 15:51:53,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 628903 states to 628903 states and 3641680 transitions. [2022-01-18 15:51:53,838 INFO L78 Accepts]: Start accepts. Automaton has 628903 states and 3641680 transitions. Word has length 53 [2022-01-18 15:51:53,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 15:51:53,839 INFO L470 AbstractCegarLoop]: Abstraction has 628903 states and 3641680 transitions. [2022-01-18 15:51:53,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.833333333333334) internal successors, (53), 5 states have internal predecessors, (53), 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) [2022-01-18 15:51:53,839 INFO L276 IsEmpty]: Start isEmpty. Operand 628903 states and 3641680 transitions. [2022-01-18 15:51:59,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-01-18 15:51:59,725 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 15:51:59,725 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 15:51:59,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 15:51:59,726 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-01-18 15:51:59,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 15:51:59,727 INFO L85 PathProgramCache]: Analyzing trace with hash -873902019, now seen corresponding path program 2 times [2022-01-18 15:51:59,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 15:51:59,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051949159] [2022-01-18 15:51:59,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 15:51:59,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 15:51:59,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 15:51:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 15:51:59,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 15:51:59,848 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051949159] [2022-01-18 15:51:59,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051949159] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 15:51:59,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 15:51:59,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-18 15:51:59,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111302318] [2022-01-18 15:51:59,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 15:51:59,851 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-18 15:51:59,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 15:51:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-18 15:51:59,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-01-18 15:51:59,853 INFO L87 Difference]: Start difference. First operand 628903 states and 3641680 transitions. Second operand has 7 states, 7 states have (on average 7.571428571428571) internal successors, (53), 6 states have internal predecessors, (53), 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)