/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/popl20/nonblocking-cntr.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 11:17:54,744 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 11:17:54,746 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 11:17:54,787 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 11:17:54,794 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 11:17:54,794 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 11:17:54,795 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 11:17:54,797 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 11:17:54,798 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 11:17:54,798 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 11:17:54,809 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 11:17:54,810 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 11:17:54,810 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 11:17:54,811 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 11:17:54,811 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 11:17:54,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 11:17:54,813 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 11:17:54,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 11:17:54,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 11:17:54,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 11:17:54,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 11:17:54,822 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 11:17:54,823 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 11:17:54,823 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 11:17:54,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 11:17:54,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 11:17:54,831 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 11:17:54,832 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 11:17:54,835 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 11:17:54,874 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 11:17:54,874 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 11:17:54,874 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 11:17:54,874 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 11:17:54,875 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 11:17:54,875 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 11:17:54,875 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 11:17:54,875 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 11:17:54,875 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 11:17:54,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 11:17:54,876 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 11:17:54,877 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 11:17:54,877 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 11:17:54,878 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:17:54,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 11:17:54,879 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 11:17:54,880 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 11:17:54,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 11:17:54,880 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 11:17:54,880 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 11:17:54,880 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 11:17:55,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 11:17:55,079 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 11:17:55,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 11:17:55,082 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 11:17:55,089 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 11:17:55,091 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr.wvr.bpl [2022-03-16 11:17:55,091 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr.wvr.bpl' [2022-03-16 11:17:55,110 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 11:17:55,112 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 11:17:55,112 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 11:17:55,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 11:17:55,113 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 11:17:55,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,126 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,130 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 11:17:55,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 11:17:55,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 11:17:55,134 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 11:17:55,134 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 11:17:55,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,140 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,140 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,145 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,145 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,146 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 11:17:55,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 11:17:55,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 11:17:55,148 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 11:17:55,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/1) ... [2022-03-16 11:17:55,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:17:55,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:17:55,173 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 11:17:55,179 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 11:17:55,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 11:17:55,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 11:17:55,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 11:17:55,209 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 11:17:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 11:17:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 11:17:55,209 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 11:17:55,209 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 11:17:55,209 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 11:17:55,210 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 11:17:55,246 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 11:17:55,248 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 11:17:55,335 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 11:17:55,344 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 11:17:55,344 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 11:17:55,345 INFO L202 PluginConnector]: Adding new model nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:17:55 BoogieIcfgContainer [2022-03-16 11:17:55,345 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 11:17:55,346 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 11:17:55,346 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 11:17:55,350 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 11:17:55,350 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:17:55" (1/2) ... [2022-03-16 11:17:55,351 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c08ce4f and model type nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:17:55, skipping insertion in model container [2022-03-16 11:17:55,351 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:17:55" (2/2) ... [2022-03-16 11:17:55,351 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr.wvr.bpl [2022-03-16 11:17:55,354 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 11:17:55,355 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 11:17:55,355 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 11:17:55,355 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 11:17:55,384 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 11:17:55,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 11:17:55,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:17:55,432 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 11:17:55,433 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 11:17:55,463 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 11:17:55,474 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 11:17:55,475 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 11:17:55,539 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 105 transitions and produced 93 states. [2022-03-16 11:17:55,540 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:17:55,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:17:55,544 INFO L85 PathProgramCache]: Analyzing trace with hash 236035323, now seen corresponding path program 1 times [2022-03-16 11:17:55,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:17:55,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884719736] [2022-03-16 11:17:55,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:17:55,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:17:55,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:17:56,000 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 34 proven. 27 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 11:17:56,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:17:56,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884719736] [2022-03-16 11:17:56,001 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884719736] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:17:56,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1150296872] [2022-03-16 11:17:56,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:17:56,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:17:56,002 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:17:56,003 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 11:17:56,004 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 11:17:56,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:17:56,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-16 11:17:56,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:17:56,716 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 8 proven. 57 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:17:56,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:17:57,251 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 4 proven. 61 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:17:57,252 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1150296872] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:17:57,252 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:17:57,252 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 17, 16] total 42 [2022-03-16 11:17:57,253 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990720461] [2022-03-16 11:17:57,254 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:17:57,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-16 11:17:57,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:17:57,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-16 11:17:57,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=395, Invalid=1411, Unknown=0, NotChecked=0, Total=1806 [2022-03-16 11:17:57,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:17:57,281 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:17:57,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.2325581395348837) internal successors, (96), 42 states have internal predecessors, (96), 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 11:17:57,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:17:57,989 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 112 transitions and produced 97 states. [2022-03-16 11:17:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-16 11:17:58,014 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 11:17:58,190 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 11:17:58,191 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:17:58,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:17:58,191 INFO L85 PathProgramCache]: Analyzing trace with hash -1615709171, now seen corresponding path program 2 times [2022-03-16 11:17:58,191 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:17:58,192 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819818154] [2022-03-16 11:17:58,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:17:58,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:17:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:17:58,402 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 1 proven. 97 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:17:58,402 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:17:58,402 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819818154] [2022-03-16 11:17:58,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819818154] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:17:58,403 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1250168920] [2022-03-16 11:17:58,403 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:17:58,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:17:58,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:17:58,404 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 11:17:58,405 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 11:17:58,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:17:58,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:17:58,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 31 conjunts are in the unsatisfiable core [2022-03-16 11:17:58,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:17:58,578 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:17:58,578 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:17:59,210 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 49 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:17:59,210 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1250168920] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:17:59,210 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:17:59,210 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 17] total 24 [2022-03-16 11:17:59,211 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604410058] [2022-03-16 11:17:59,211 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:17:59,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 11:17:59,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:17:59,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 11:17:59,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2022-03-16 11:17:59,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:17:59,212 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:17:59,212 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.2916666666666665) internal successors, (79), 24 states have internal predecessors, (79), 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 11:17:59,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-03-16 11:17:59,213 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:17:59,560 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 171 transitions and produced 147 states. [2022-03-16 11:17:59,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:17:59,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:17:59,579 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 11:17:59,761 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 11:17:59,761 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:17:59,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:17:59,762 INFO L85 PathProgramCache]: Analyzing trace with hash -82464365, now seen corresponding path program 3 times [2022-03-16 11:17:59,762 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:17:59,762 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089840230] [2022-03-16 11:17:59,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:17:59,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:17:59,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:00,068 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 169 proven. 102 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:18:00,069 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:00,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089840230] [2022-03-16 11:18:00,069 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089840230] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:00,069 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [897319864] [2022-03-16 11:18:00,069 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:18:00,069 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:00,069 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:00,070 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 11:18:00,091 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 11:18:00,141 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-03-16 11:18:00,141 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:18:00,142 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 51 conjunts are in the unsatisfiable core [2022-03-16 11:18:00,145 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:18:01,227 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 68 proven. 209 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:01,227 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:18:02,315 INFO L134 CoverageAnalysis]: Checked inductivity of 277 backedges. 59 proven. 218 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:02,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [897319864] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:18:02,315 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:18:02,315 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 28, 30] total 77 [2022-03-16 11:18:02,316 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520488195] [2022-03-16 11:18:02,316 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:18:02,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-16 11:18:02,317 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:18:02,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-16 11:18:02,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1120, Invalid=4886, Unknown=0, NotChecked=0, Total=6006 [2022-03-16 11:18:02,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:02,319 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:18:02,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.1923076923076925) internal successors, (171), 77 states have internal predecessors, (171), 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 11:18:02,319 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:02,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:02,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:04,752 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 201 transitions and produced 170 states. [2022-03-16 11:18:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:04,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-03-16 11:18:04,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 11:18:04,955 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 11:18:04,955 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:18:04,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:18:04,956 INFO L85 PathProgramCache]: Analyzing trace with hash -725126037, now seen corresponding path program 4 times [2022-03-16 11:18:04,956 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:18:04,956 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100224588] [2022-03-16 11:18:04,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:18:04,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:18:05,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:05,642 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 29 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:05,643 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:05,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100224588] [2022-03-16 11:18:05,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100224588] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:05,643 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680685243] [2022-03-16 11:18:05,643 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:18:05,643 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:05,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:05,644 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 11:18:05,645 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 11:18:05,690 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:18:05,690 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:18:05,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 61 conjunts are in the unsatisfiable core [2022-03-16 11:18:05,708 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:18:07,277 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 29 proven. 392 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:07,277 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:18:17,522 INFO L134 CoverageAnalysis]: Checked inductivity of 421 backedges. 225 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:17,523 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680685243] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:18:17,523 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:18:17,523 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 96 [2022-03-16 11:18:17,524 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295906987] [2022-03-16 11:18:17,524 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:18:17,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-03-16 11:18:17,525 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:18:17,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-03-16 11:18:17,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1454, Invalid=7858, Unknown=0, NotChecked=0, Total=9312 [2022-03-16 11:18:17,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:17,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:18:17,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 2.0721649484536084) internal successors, (201), 96 states have internal predecessors, (201), 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 11:18:17,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:17,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:17,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-03-16 11:18:17,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:20,814 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 250 transitions and produced 212 states. [2022-03-16 11:18:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:20,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:20,833 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 11:18:21,015 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 11:18:21,016 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:18:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:18:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 2028685165, now seen corresponding path program 5 times [2022-03-16 11:18:21,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:18:21,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1563689679] [2022-03-16 11:18:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:18:21,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:18:21,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:21,526 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 400 proven. 260 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:18:21,526 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:21,526 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1563689679] [2022-03-16 11:18:21,527 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1563689679] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:21,527 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1089203697] [2022-03-16 11:18:21,527 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:18:21,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:21,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:21,528 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 11:18:21,529 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 11:18:21,580 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2022-03-16 11:18:21,580 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:18:21,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 209 conjuncts, 76 conjunts are in the unsatisfiable core [2022-03-16 11:18:21,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:18:23,063 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 229 proven. 437 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:23,063 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:18:24,855 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 213 proven. 453 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:24,856 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1089203697] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:18:24,856 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:18:24,856 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 42, 41] total 114 [2022-03-16 11:18:24,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978813157] [2022-03-16 11:18:24,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:18:24,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2022-03-16 11:18:24,858 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:18:24,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2022-03-16 11:18:24,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2444, Invalid=10666, Unknown=0, NotChecked=0, Total=13110 [2022-03-16 11:18:24,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:24,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:18:24,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.130434782608696) internal successors, (245), 114 states have internal predecessors, (245), 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 11:18:24,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:24,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:24,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:24,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:24,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:28,563 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 327 transitions and produced 272 states. [2022-03-16 11:18:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:28,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:18:28,581 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 11:18:28,767 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 11:18:28,768 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:18:28,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:18:28,768 INFO L85 PathProgramCache]: Analyzing trace with hash -768041913, now seen corresponding path program 6 times [2022-03-16 11:18:28,768 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:18:28,768 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928164838] [2022-03-16 11:18:28,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:18:28,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:18:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:29,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 676 proven. 531 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:18:29,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:29,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928164838] [2022-03-16 11:18:29,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1928164838] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:29,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1291536546] [2022-03-16 11:18:29,579 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:18:29,579 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:29,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:29,581 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 11:18:29,581 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 11:18:29,653 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 28 check-sat command(s) [2022-03-16 11:18:29,653 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:18:29,655 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 102 conjunts are in the unsatisfiable core [2022-03-16 11:18:29,660 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:18:31,897 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 445 proven. 768 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:31,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:18:34,643 INFO L134 CoverageAnalysis]: Checked inductivity of 1213 backedges. 423 proven. 790 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:34,643 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1291536546] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:18:34,643 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:18:34,644 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 55, 54] total 153 [2022-03-16 11:18:34,644 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147445194] [2022-03-16 11:18:34,644 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:18:34,644 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 154 states [2022-03-16 11:18:34,644 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:18:34,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 154 interpolants. [2022-03-16 11:18:34,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4061, Invalid=19501, Unknown=0, NotChecked=0, Total=23562 [2022-03-16 11:18:34,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:34,649 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:18:34,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 154 states, 154 states have (on average 2.0974025974025974) internal successors, (323), 153 states have internal predecessors, (323), 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 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:18:34,650 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:40,358 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 399 transitions and produced 328 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:18:40,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:18:40,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 11:18:40,560 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 11:18:40,560 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:18:40,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:18:40,561 INFO L85 PathProgramCache]: Analyzing trace with hash -226171553, now seen corresponding path program 7 times [2022-03-16 11:18:40,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:18:40,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [185765997] [2022-03-16 11:18:40,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:18:40,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:18:40,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:41,810 INFO L134 CoverageAnalysis]: Checked inductivity of 1873 backedges. 1024 proven. 843 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:18:41,811 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:41,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [185765997] [2022-03-16 11:18:41,811 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [185765997] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:41,811 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [770747211] [2022-03-16 11:18:41,811 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 11:18:41,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:41,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:41,812 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:18:41,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 11:18:41,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:41,880 INFO L263 TraceCheckSpWp]: Trace formula consists of 334 conjuncts, 126 conjunts are in the unsatisfiable core [2022-03-16 11:18:41,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:18:45,120 INFO L134 CoverageAnalysis]: Checked inductivity of 1873 backedges. 733 proven. 1140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:45,120 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:18:48,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1873 backedges. 705 proven. 1168 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:18:48,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [770747211] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:18:48,939 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:18:48,939 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 67, 66] total 189 [2022-03-16 11:18:48,939 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516950515] [2022-03-16 11:18:48,939 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:18:48,940 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-03-16 11:18:48,940 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:18:48,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-03-16 11:18:48,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6095, Invalid=29815, Unknown=0, NotChecked=0, Total=35910 [2022-03-16 11:18:48,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:48,944 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:18:48,944 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 190 states have (on average 2.0789473684210527) internal successors, (395), 189 states have internal predecessors, (395), 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 11:18:48,944 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:18:48,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:18:56,990 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 471 transitions and produced 384 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:18:56,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:18:56,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:18:57,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 11:18:57,194 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 11:18:57,195 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:18:57,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:18:57,195 INFO L85 PathProgramCache]: Analyzing trace with hash -835918217, now seen corresponding path program 8 times [2022-03-16 11:18:57,195 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:18:57,195 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420233311] [2022-03-16 11:18:57,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:18:57,195 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:18:57,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:18:58,890 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 1444 proven. 1227 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:18:58,890 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:18:58,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420233311] [2022-03-16 11:18:58,891 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420233311] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:18:58,891 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2062356350] [2022-03-16 11:18:58,891 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:18:58,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:18:58,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:18:58,892 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:18:58,892 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 11:18:58,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:18:58,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:18:58,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 150 conjunts are in the unsatisfiable core [2022-03-16 11:18:58,967 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:19:03,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 1093 proven. 1584 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:19:03,169 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:19:08,236 INFO L134 CoverageAnalysis]: Checked inductivity of 2677 backedges. 1059 proven. 1618 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:19:08,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2062356350] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:19:08,237 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:19:08,237 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [72, 79, 78] total 225 [2022-03-16 11:19:08,237 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911770277] [2022-03-16 11:19:08,237 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:19:08,238 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-03-16 11:19:08,238 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:19:08,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-03-16 11:19:08,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8561, Invalid=42289, Unknown=0, NotChecked=0, Total=50850 [2022-03-16 11:19:08,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:19:08,242 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:19:08,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 226 states have (on average 2.066371681415929) internal successors, (467), 225 states have internal predecessors, (467), 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 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:19:08,242 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:19:19,274 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 543 transitions and produced 440 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:19:19,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2022-03-16 11:19:19,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 11:19:19,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:19:19,476 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:19:19,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:19:19,476 INFO L85 PathProgramCache]: Analyzing trace with hash -1471635569, now seen corresponding path program 9 times [2022-03-16 11:19:19,477 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:19:19,477 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [379830542] [2022-03-16 11:19:19,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:19:19,477 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:19:19,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:19:21,653 INFO L134 CoverageAnalysis]: Checked inductivity of 3625 backedges. 1936 proven. 1683 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 11:19:21,653 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:19:21,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [379830542] [2022-03-16 11:19:21,653 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [379830542] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:19:21,653 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437087008] [2022-03-16 11:19:21,653 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:19:21,654 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:19:21,654 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:19:21,655 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:19:21,656 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 11:19:21,860 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 46 check-sat command(s) [2022-03-16 11:19:21,861 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:19:21,865 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 194 conjunts are in the unsatisfiable core [2022-03-16 11:19:21,869 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:19:27,478 INFO L134 CoverageAnalysis]: Checked inductivity of 3625 backedges. 1525 proven. 2100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:19:27,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:19:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 3625 backedges. 1485 proven. 2140 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:19:34,361 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437087008] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:19:34,361 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:19:34,361 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [84, 91, 91] total 262 [2022-03-16 11:19:34,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542339772] [2022-03-16 11:19:34,362 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:19:34,362 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2022-03-16 11:19:34,362 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:19:34,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2022-03-16 11:19:34,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11300, Invalid=57606, Unknown=0, NotChecked=0, Total=68906 [2022-03-16 11:19:34,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:19:34,367 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:19:34,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 263 states, 263 states have (on average 2.049429657794677) internal successors, (539), 262 states have internal predecessors, (539), 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 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 84 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 109 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2022-03-16 11:19:34,368 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:19:53,907 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 537 transitions and produced 428 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 163 states. [2022-03-16 11:19:53,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 193 states. [2022-03-16 11:19:53,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 172 states. [2022-03-16 11:19:53,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-16 11:19:54,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-16 11:19:54,108 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:19:54,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:19:54,109 INFO L85 PathProgramCache]: Analyzing trace with hash -295464229, now seen corresponding path program 10 times [2022-03-16 11:19:54,109 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:19:54,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988624635] [2022-03-16 11:19:54,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:19:54,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:19:54,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:19:57,720 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 85 proven. 3528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:19:57,721 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:19:57,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988624635] [2022-03-16 11:19:57,721 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988624635] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:19:57,721 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [67379369] [2022-03-16 11:19:57,721 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:19:57,721 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:19:57,721 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:19:57,722 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:19:57,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 11:19:57,796 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:19:57,797 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:19:57,800 INFO L263 TraceCheckSpWp]: Trace formula consists of 454 conjuncts, 173 conjunts are in the unsatisfiable core [2022-03-16 11:19:57,804 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:20:07,033 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 85 proven. 3528 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:20:07,033 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:22:27,855 INFO L134 CoverageAnalysis]: Checked inductivity of 3613 backedges. 1849 proven. 1764 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:22:27,855 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [67379369] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:22:27,855 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:22:27,855 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [90, 90, 90] total 264 [2022-03-16 11:22:27,856 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378383064] [2022-03-16 11:22:27,856 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:22:27,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 265 states [2022-03-16 11:22:27,856 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:22:27,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 265 interpolants. [2022-03-16 11:22:27,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10736, Invalid=59224, Unknown=0, NotChecked=0, Total=69960 [2022-03-16 11:22:27,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:22:27,862 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:22:27,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 265 states, 265 states have (on average 2.026415094339623) internal successors, (537), 264 states have internal predecessors, (537), 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 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 133 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 163 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 193 states. [2022-03-16 11:22:27,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 172 states. [2022-03-16 11:22:27,863 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:23:04,520 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 620 transitions and produced 498 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:23:04,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:23:04,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:23:04,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 11:23:04,762 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-16 11:23:04,763 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:23:04,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:23:04,763 INFO L85 PathProgramCache]: Analyzing trace with hash 1664840613, now seen corresponding path program 11 times [2022-03-16 11:23:04,763 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:23:04,763 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666398932] [2022-03-16 11:23:04,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:23:04,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:23:04,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:23:07,552 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 2504 proven. 2298 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:23:07,552 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:23:07,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666398932] [2022-03-16 11:23:07,552 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666398932] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:23:07,552 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830527098] [2022-03-16 11:23:07,552 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:23:07,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:23:07,553 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:23:07,554 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:23:07,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 11:23:07,741 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 52 check-sat command(s) [2022-03-16 11:23:07,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:23:07,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 519 conjuncts, 200 conjunts are in the unsatisfiable core [2022-03-16 11:23:07,750 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:23:14,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 1855 proven. 2955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:23:14,759 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:23:23,238 INFO L134 CoverageAnalysis]: Checked inductivity of 4810 backedges. 1810 proven. 3000 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:23:23,238 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830527098] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:23:23,239 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:23:23,239 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [95, 104, 103] total 298 [2022-03-16 11:23:23,239 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835233740] [2022-03-16 11:23:23,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:23:23,240 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 299 states [2022-03-16 11:23:23,240 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:23:23,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 299 interpolants. [2022-03-16 11:23:23,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14194, Invalid=74908, Unknown=0, NotChecked=0, Total=89102 [2022-03-16 11:23:23,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:23:23,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:23:23,247 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 299 states, 299 states have (on average 2.05685618729097) internal successors, (615), 298 states have internal predecessors, (615), 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 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:23:23,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:23:42,672 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 701 transitions and produced 560 states. [2022-03-16 11:23:42,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:23:42,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:23:42,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 11:23:42,874 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-03-16 11:23:42,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:23:42,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:23:42,874 INFO L85 PathProgramCache]: Analyzing trace with hash 1743491967, now seen corresponding path program 12 times [2022-03-16 11:23:42,875 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:23:42,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140658384] [2022-03-16 11:23:42,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:23:42,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:23:43,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:23:46,395 INFO L134 CoverageAnalysis]: Checked inductivity of 6185 backedges. 3368 proven. 2809 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:23:46,395 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:23:46,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140658384] [2022-03-16 11:23:46,395 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140658384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:23:46,395 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [297291414] [2022-03-16 11:23:46,396 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:23:46,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:23:46,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:23:46,397 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:23:46,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 11:23:46,645 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 60 check-sat command(s) [2022-03-16 11:23:46,645 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:23:46,651 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 226 conjunts are in the unsatisfiable core [2022-03-16 11:23:46,671 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:23:55,426 INFO L134 CoverageAnalysis]: Checked inductivity of 6185 backedges. 2607 proven. 3578 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:23:55,426 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:24:05,609 INFO L134 CoverageAnalysis]: Checked inductivity of 6185 backedges. 2554 proven. 3631 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:24:05,609 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [297291414] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:24:05,609 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:24:05,609 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [108, 117, 116] total 337 [2022-03-16 11:24:05,611 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985893619] [2022-03-16 11:24:05,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:24:05,612 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 338 states [2022-03-16 11:24:05,612 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:24:05,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 338 interpolants. [2022-03-16 11:24:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19057, Invalid=94849, Unknown=0, NotChecked=0, Total=113906 [2022-03-16 11:24:05,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:24:05,621 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:24:05,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 338 states, 338 states have (on average 2.0502958579881656) internal successors, (693), 337 states have internal predecessors, (693), 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 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:24:05,622 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:24:05,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:24:05,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:24:05,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:24:29,398 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 797 transitions and produced 634 states. [2022-03-16 11:24:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:24:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:24:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:24:29,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:24:29,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:24:29,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 11:24:29,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-03-16 11:24:29,600 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:24:29,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:24:29,600 INFO L85 PathProgramCache]: Analyzing trace with hash -137713761, now seen corresponding path program 13 times [2022-03-16 11:24:29,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:24:29,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [585900020] [2022-03-16 11:24:29,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:24:29,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:24:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:24:34,033 INFO L134 CoverageAnalysis]: Checked inductivity of 8089 backedges. 4360 proven. 3721 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:24:34,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:24:34,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [585900020] [2022-03-16 11:24:34,034 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [585900020] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:24:34,034 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [90632546] [2022-03-16 11:24:34,034 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 11:24:34,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:24:34,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:24:34,068 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:24:34,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 11:24:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:24:34,176 INFO L263 TraceCheckSpWp]: Trace formula consists of 664 conjuncts, 258 conjunts are in the unsatisfiable core [2022-03-16 11:24:34,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:24:44,939 INFO L134 CoverageAnalysis]: Checked inductivity of 8089 backedges. 3487 proven. 4602 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:24:44,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:24:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 8089 backedges. 3426 proven. 4663 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:24:57,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [90632546] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:24:57,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:24:57,426 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [124, 133, 132] total 385 [2022-03-16 11:24:57,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698993980] [2022-03-16 11:24:57,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:24:57,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-03-16 11:24:57,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:24:57,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-03-16 11:24:57,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24793, Invalid=123817, Unknown=0, NotChecked=0, Total=148610 [2022-03-16 11:24:57,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:24:57,440 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:24:57,441 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.0440414507772022) internal successors, (789), 385 states have internal predecessors, (789), 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 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:24:57,441 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:24:57,442 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:25:28,086 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 893 transitions and produced 708 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:25:28,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:25:28,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:25:28,104 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-16 11:25:28,288 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:25:28,288 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:25:28,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:25:28,289 INFO L85 PathProgramCache]: Analyzing trace with hash 2023308223, now seen corresponding path program 14 times [2022-03-16 11:25:28,289 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:25:28,289 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2002119585] [2022-03-16 11:25:28,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:25:28,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:25:28,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:25:33,926 INFO L134 CoverageAnalysis]: Checked inductivity of 10249 backedges. 5480 proven. 4761 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:25:33,926 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:25:33,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2002119585] [2022-03-16 11:25:33,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2002119585] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:25:33,926 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1194837670] [2022-03-16 11:25:33,926 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:25:33,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:25:33,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:25:33,927 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:25:33,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 11:25:34,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:25:34,055 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:25:34,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 744 conjuncts, 290 conjunts are in the unsatisfiable core [2022-03-16 11:25:34,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:25:47,327 INFO L134 CoverageAnalysis]: Checked inductivity of 10249 backedges. 4495 proven. 5754 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:25:47,327 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:26:02,757 INFO L134 CoverageAnalysis]: Checked inductivity of 10249 backedges. 4426 proven. 5823 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:26:02,757 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1194837670] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:26:02,757 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:26:02,757 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [140, 149, 148] total 433 [2022-03-16 11:26:02,758 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713448614] [2022-03-16 11:26:02,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:26:02,760 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 434 states [2022-03-16 11:26:02,760 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:26:02,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 434 interpolants. [2022-03-16 11:26:02,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31297, Invalid=156625, Unknown=0, NotChecked=0, Total=187922 [2022-03-16 11:26:02,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:26:02,776 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:26:02,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 434 states, 434 states have (on average 2.0391705069124426) internal successors, (885), 433 states have internal predecessors, (885), 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 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:26:02,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:26:40,893 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 989 transitions and produced 782 states. [2022-03-16 11:26:40,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:26:40,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-16 11:26:40,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-16 11:26:41,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:26:41,102 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:26:41,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:26:41,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1135128609, now seen corresponding path program 15 times [2022-03-16 11:26:41,103 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:26:41,103 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737133052] [2022-03-16 11:26:41,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:26:41,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:26:41,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:26:47,941 INFO L134 CoverageAnalysis]: Checked inductivity of 12665 backedges. 6728 proven. 5929 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:26:47,941 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:26:47,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737133052] [2022-03-16 11:26:47,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737133052] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:26:47,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [150199078] [2022-03-16 11:26:47,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:26:47,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:26:47,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:26:47,942 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:26:47,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-03-16 11:26:48,498 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 84 check-sat command(s) [2022-03-16 11:26:48,498 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:26:48,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 824 conjuncts, 336 conjunts are in the unsatisfiable core [2022-03-16 11:26:48,511 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:27:04,628 INFO L134 CoverageAnalysis]: Checked inductivity of 12665 backedges. 5631 proven. 7034 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:27:04,629 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:27:23,965 INFO L134 CoverageAnalysis]: Checked inductivity of 12665 backedges. 5554 proven. 7111 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:27:23,965 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [150199078] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:27:23,965 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:27:23,965 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [156, 165, 165] total 482 [2022-03-16 11:27:23,965 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013795543] [2022-03-16 11:27:23,966 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:27:23,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 483 states [2022-03-16 11:27:23,966 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:27:23,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 483 interpolants. [2022-03-16 11:27:23,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38493, Invalid=194313, Unknown=0, NotChecked=0, Total=232806 [2022-03-16 11:27:23,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:27:23,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:27:23,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 483 states, 483 states have (on average 2.031055900621118) internal successors, (981), 482 states have internal predecessors, (981), 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 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-16 11:27:23,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:28:12,529 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1085 transitions and produced 856 states. [2022-03-16 11:28:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:28:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:28:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:28:12,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 298 states. [2022-03-16 11:28:12,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 11:28:12,557 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-03-16 11:28:12,739 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-03-16 11:28:12,739 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 11:28:12,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:28:12,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1794841601, now seen corresponding path program 16 times [2022-03-16 11:28:12,740 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:28:12,740 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812634049] [2022-03-16 11:28:12,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:28:12,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:28:13,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:28:21,220 INFO L134 CoverageAnalysis]: Checked inductivity of 15337 backedges. 8104 proven. 7225 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-16 11:28:21,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:28:21,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812634049] [2022-03-16 11:28:21,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812634049] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:28:21,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [894288605] [2022-03-16 11:28:21,221 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:28:21,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:28:21,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:28:21,222 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:28:21,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-03-16 11:28:21,372 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:28:21,372 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:28:21,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 354 conjunts are in the unsatisfiable core [2022-03-16 11:28:21,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:28:40,636 INFO L134 CoverageAnalysis]: Checked inductivity of 15337 backedges. 6895 proven. 8442 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:28:40,636 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:29:02,750 INFO L134 CoverageAnalysis]: Checked inductivity of 15337 backedges. 6810 proven. 8527 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:29:02,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [894288605] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:29:02,751 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:29:02,751 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [172, 181, 180] total 529 [2022-03-16 11:29:02,751 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587004461] [2022-03-16 11:29:02,751 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:29:02,752 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 530 states [2022-03-16 11:29:02,752 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:29:02,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 530 interpolants. [2022-03-16 11:29:02,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46609, Invalid=233761, Unknown=0, NotChecked=0, Total=280370 [2022-03-16 11:29:02,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:29:02,771 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:29:02,771 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 530 states, 530 states have (on average 2.0320754716981133) internal successors, (1077), 529 states have internal predecessors, (1077), 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 11:29:02,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 42 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 116 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 190 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 226 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 222 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 135 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 205 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 234 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 266 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 298 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 11:29:02,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 11:30:02,644 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2022-03-16 11:30:02,654 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 11:30:02,655 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 11:30:02,655 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 11:30:02,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-03-16 11:30:02,825 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 880 known predicates. [2022-03-16 11:30:02,827 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 11:30:02,827 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 11:30:02,827 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 11:30:02,836 INFO L732 BasicCegarLoop]: Path program histogram: [16] [2022-03-16 11:30:02,838 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 11:30:02,838 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 11:30:02,840 INFO L202 PluginConnector]: Adding new model nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:30:02 BasicIcfg [2022-03-16 11:30:02,840 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 11:30:02,840 INFO L158 Benchmark]: Toolchain (without parser) took 727728.51ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 968.9MB). Free memory was 163.6MB in the beginning and 162.9MB in the end (delta: 647.4kB). Peak memory consumption was 970.1MB. Max. memory is 8.0GB. [2022-03-16 11:30:02,840 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 199.2MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:30:02,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.34ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 161.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:30:02,841 INFO L158 Benchmark]: Boogie Preprocessor took 13.43ms. Allocated memory is still 199.2MB. Free memory was 161.9MB in the beginning and 161.0MB in the end (delta: 878.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:30:02,841 INFO L158 Benchmark]: RCFGBuilder took 197.67ms. Allocated memory is still 199.2MB. Free memory was 160.9MB in the beginning and 152.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 11:30:02,841 INFO L158 Benchmark]: TraceAbstraction took 727493.50ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 968.9MB). Free memory was 151.6MB in the beginning and 162.9MB in the end (delta: -11.3MB). Peak memory consumption was 957.5MB. Max. memory is 8.0GB. [2022-03-16 11:30:02,842 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 0.13ms. Allocated memory is still 199.2MB. Free memory is still 164.6MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.34ms. Allocated memory is still 199.2MB. Free memory was 163.4MB in the beginning and 161.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.43ms. Allocated memory is still 199.2MB. Free memory was 161.9MB in the beginning and 161.0MB in the end (delta: 878.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 197.67ms. Allocated memory is still 199.2MB. Free memory was 160.9MB in the beginning and 152.2MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 727493.50ms. Allocated memory was 199.2MB in the beginning and 1.2GB in the end (delta: 968.9MB). Free memory was 151.6MB in the beginning and 162.9MB in the end (delta: -11.3MB). Peak memory consumption was 957.5MB. 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 880 known predicates. - TimeoutResultAtElement [Line: 45]: 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 880 known predicates. - TimeoutResultAtElement [Line: 45]: 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 880 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 727.4s, OverallIterations: 16, TraceHistogramMax: 0, PathProgramHistogramMax: 16, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 311.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2903, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.7s SatisfiabilityAnalysisTime, 407.6s InterpolantComputationTime, 5596 NumberOfCodeBlocks, 5596 NumberOfCodeBlocksAsserted, 335 NumberOfCheckSat, 8346 ConstructedInterpolants, 0 QuantifiedInterpolants, 152862 SizeOfPredicates, 122 NumberOfNonLiveVariables, 6859 ConjunctsInSsa, 2654 ConjunctsInUnsatCore, 48 InterpolantComputations, 0 PerfectInterpolantSequences, 96266/215589 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