/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 19:45:53,876 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 19:45:53,878 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 19:45:53,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-16 19:45:53,958 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks.epf [2022-02-16 19:45:53,980 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 19:45:53,980 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 19:45:53,981 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 19:45:53,981 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 19:45:53,981 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 19:45:53,981 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 19:45:53,982 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 19:45:53,982 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 19:45:53,982 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 19:45:53,983 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 19:45:53,983 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 19:45:53,984 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 19:45:53,984 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 19:45:53,985 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-16 19:45:53,985 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 19:45:54,155 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 19:45:54,170 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 19:45:54,172 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 19:45:54,173 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 19:45:54,173 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 19:45:54,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl [2022-02-16 19:45:54,174 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_7.bpl' [2022-02-16 19:45:54,191 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 19:45:54,192 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 19:45:54,192 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 19:45:54,192 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 19:45:54,195 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 19:45:54,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,208 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,214 INFO L137 Inliner]: procedures = 8, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 19:45:54,215 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 19:45:54,216 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 19:45:54,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 19:45:54,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 19:45:54,224 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,225 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,225 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,227 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 19:45:54,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 19:45:54,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 19:45:54,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 19:45:54,244 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/1) ... [2022-02-16 19:45:54,251 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 19:45:54,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 19:45:54,274 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-16 19:45:54,282 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-16 19:45:54,312 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-02-16 19:45:54,312 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-02-16 19:45:54,312 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-02-16 19:45:54,313 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-02-16 19:45:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-02-16 19:45:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-02-16 19:45:54,313 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-02-16 19:45:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-02-16 19:45:54,313 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-02-16 19:45:54,313 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-02-16 19:45:54,313 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-02-16 19:45:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-02-16 19:45:54,314 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-02-16 19:45:54,314 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-02-16 19:45:54,314 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-02-16 19:45:54,315 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 19:45:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 19:45:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 19:45:54,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_5 given in one single declaration [2022-02-16 19:45:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure set_5 [2022-02-16 19:45:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure set_5 [2022-02-16 19:45:54,316 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_6 given in one single declaration [2022-02-16 19:45:54,316 INFO L130 BoogieDeclarations]: Found specification of procedure set_6 [2022-02-16 19:45:54,316 INFO L138 BoogieDeclarations]: Found implementation of procedure set_6 [2022-02-16 19:45:54,317 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 19:45:54,353 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 19:45:54,354 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 19:45:54,445 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 19:45:54,450 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 19:45:54,450 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 19:45:54,452 INFO L202 PluginConnector]: Adding new model example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 07:45:54 BoogieIcfgContainer [2022-02-16 19:45:54,452 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 19:45:54,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 19:45:54,456 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 19:45:54,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 19:45:54,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 07:45:54" (1/2) ... [2022-02-16 19:45:54,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44c91e3 and model type example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 07:45:54, skipping insertion in model container [2022-02-16 19:45:54,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_7.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 07:45:54" (2/2) ... [2022-02-16 19:45:54,461 INFO L111 eAbstractionObserver]: Analyzing ICFG example_7.bpl [2022-02-16 19:45:54,467 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 19:45:54,468 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 19:45:54,468 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 19:45:54,468 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 19:45:54,517 INFO L148 ThreadInstanceAdder]: Constructed 49 joinOtherThreadTransitions. [2022-02-16 19:45:54,549 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 19:45:54,549 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 19:45:54,550 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 19:45:54,551 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-16 19:45:54,586 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 19:45:54,606 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=false, 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 [2022-02-16 19:45:54,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2022-02-16 19:45:54,614 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 60 places, 80 transitions, 342 flow [2022-02-16 19:45:55,666 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 17478 states, 17477 states have (on average 5.213709446701379) internal successors, (91120), 17477 states have internal predecessors, (91120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:55,752 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-16 19:45:55,753 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-02-16 19:45:55,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 19:45:55,757 INFO L85 PathProgramCache]: Analyzing trace with hash -795137073, now seen corresponding path program 1 times [2022-02-16 19:45:55,764 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 19:45:55,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502980010] [2022-02-16 19:45:55,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 19:45:55,765 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 19:45:55,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 19:45:55,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 19:45:55,938 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 19:45:55,938 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502980010] [2022-02-16 19:45:55,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502980010] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 19:45:55,938 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 19:45:55,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 19:45:55,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1066046923] [2022-02-16 19:45:55,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 19:45:55,942 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 19:45:55,942 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 19:45:55,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 19:45:55,956 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 19:45:55,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:55,958 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 19:45:55,958 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:55,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,034 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-16 19:45:56,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,035 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-16 19:45:56,035 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-02-16 19:45:56,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 19:45:56,036 INFO L85 PathProgramCache]: Analyzing trace with hash 119148717, now seen corresponding path program 1 times [2022-02-16 19:45:56,036 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 19:45:56,036 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013822306] [2022-02-16 19:45:56,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 19:45:56,036 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 19:45:56,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 19:45:56,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 19:45:56,062 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 19:45:56,062 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013822306] [2022-02-16 19:45:56,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013822306] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 19:45:56,063 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 19:45:56,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 19:45:56,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763644747] [2022-02-16 19:45:56,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 19:45:56,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 19:45:56,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 19:45:56,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 19:45:56,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 19:45:56,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,065 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 19:45:56,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:56,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,065 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,213 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-16 19:45:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,214 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-16 19:45:56,214 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-02-16 19:45:56,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 19:45:56,214 INFO L85 PathProgramCache]: Analyzing trace with hash 978023247, now seen corresponding path program 1 times [2022-02-16 19:45:56,215 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 19:45:56,215 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708431572] [2022-02-16 19:45:56,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 19:45:56,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 19:45:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 19:45:56,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 19:45:56,240 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 19:45:56,241 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708431572] [2022-02-16 19:45:56,241 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708431572] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 19:45:56,241 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 19:45:56,241 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 19:45:56,241 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584367097] [2022-02-16 19:45:56,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 19:45:56,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 19:45:56,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 19:45:56,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 19:45:56,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 19:45:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 19:45:56,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,325 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-16 19:45:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,326 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-16 19:45:56,327 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-02-16 19:45:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 19:45:56,331 INFO L85 PathProgramCache]: Analyzing trace with hash 978052077, now seen corresponding path program 1 times [2022-02-16 19:45:56,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 19:45:56,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579506364] [2022-02-16 19:45:56,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 19:45:56,337 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 19:45:56,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 19:45:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 19:45:56,401 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 19:45:56,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579506364] [2022-02-16 19:45:56,402 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579506364] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 19:45:56,402 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 19:45:56,402 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-16 19:45:56,402 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2082870093] [2022-02-16 19:45:56,402 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 19:45:56,402 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-16 19:45:56,402 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 19:45:56,403 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-16 19:45:56,403 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-16 19:45:56,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,403 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 19:45:56,403 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:56,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,404 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,485 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 155 transitions and produced 156 states. [2022-02-16 19:45:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,486 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 19:45:56,486 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 4 more)] === [2022-02-16 19:45:56,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 19:45:56,488 INFO L85 PathProgramCache]: Analyzing trace with hash 978081837, now seen corresponding path program 1 times [2022-02-16 19:45:56,488 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 19:45:56,488 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785925463] [2022-02-16 19:45:56,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 19:45:56,488 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 19:45:56,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 19:45:56,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 19:45:56,953 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 19:45:56,953 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785925463] [2022-02-16 19:45:56,953 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [785925463] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-16 19:45:56,953 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-16 19:45:56,953 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-02-16 19:45:56,953 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955913584] [2022-02-16 19:45:56,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-16 19:45:56,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-16 19:45:56,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 19:45:56,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-16 19:45:56,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2022-02-16 19:45:56,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 19:45:56,956 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 19:45:56,956 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 3.625) internal successors, (29), 9 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 19:45:56,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-16 19:45:56,956 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.