/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-POR-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.abstract-por-f0ea240 [2022-02-11 06:58:43,587 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-11 06:58:43,589 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-11 06:58:43,635 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-11 06:58:43,663 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-11 06:58:43,664 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-11 06:58:43,666 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-11 06:58:43,668 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-11 06:58:43,668 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-11 06:58:43,669 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-11 06:58:43,670 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-11 06:58:43,675 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-11 06:58:43,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-11 06:58:43,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-11 06:58:43,677 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-11 06:58:43,678 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-11 06:58:43,682 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-11 06:58:43,689 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-11 06:58:43,689 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-11 06:58:43,689 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-11 06:58:43,690 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-POR-NewStatesSleepPersistent-NoLbe.epf [2022-02-11 06:58:43,717 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-11 06:58:43,717 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-11 06:58:43,718 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-11 06:58:43,718 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-11 06:58:43,719 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-11 06:58:43,719 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-11 06:58:43,719 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-11 06:58:43,719 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-11 06:58:43,719 INFO L138 SettingsManager]: * Use SBE=true [2022-02-11 06:58:43,719 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-11 06:58:43,720 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-11 06:58:43,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-11 06:58:43,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 06:58:43,723 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-11 06:58:43,723 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-11 06:58:43,724 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-11 06:58:43,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-11 06:58:43,724 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-11 06:58:43,724 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2022-02-11 06:58:43,724 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-11 06:58:43,865 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-11 06:58:43,877 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-11 06:58:43,879 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-11 06:58:43,880 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-11 06:58:43,881 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-11 06:58:43,882 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl [2022-02-11 06:58:43,882 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/min-array-hom.wvr.bpl' [2022-02-11 06:58:43,901 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-11 06:58:43,903 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-11 06:58:43,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-11 06:58:43,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-11 06:58:43,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-11 06:58:43,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,923 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,927 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-11 06:58:43,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-11 06:58:43,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-11 06:58:43,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-11 06:58:43,929 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-11 06:58:43,934 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,937 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,938 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,939 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-11 06:58:43,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-11 06:58:43,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-11 06:58:43,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-11 06:58:43,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/1) ... [2022-02-11 06:58:43,948 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-11 06:58:43,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:43,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-11 06:58:44,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-11 06:58:44,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-11 06:58:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-11 06:58:44,021 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-11 06:58:44,021 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-11 06:58:44,021 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-11 06:58:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-11 06:58:44,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-11 06:58:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-11 06:58:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-11 06:58:44,022 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-11 06:58:44,022 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-11 06:58:44,022 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-11 06:58:44,023 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-11 06:58:44,056 INFO L234 CfgBuilder]: Building ICFG [2022-02-11 06:58:44,057 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-11 06:58:44,144 INFO L275 CfgBuilder]: Performing block encoding [2022-02-11 06:58:44,153 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-11 06:58:44,154 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-11 06:58:44,155 INFO L202 PluginConnector]: Adding new model min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 06:58:44 BoogieIcfgContainer [2022-02-11 06:58:44,155 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-11 06:58:44,156 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-11 06:58:44,156 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-11 06:58:44,165 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-11 06:58:44,165 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.02 06:58:43" (1/2) ... [2022-02-11 06:58:44,167 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18941498 and model type min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.02 06:58:44, skipping insertion in model container [2022-02-11 06:58:44,167 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.02 06:58:44" (2/2) ... [2022-02-11 06:58:44,168 INFO L112 eAbstractionObserver]: Analyzing ICFG min-array-hom.wvr.bpl [2022-02-11 06:58:44,171 WARN L154 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-11 06:58:44,172 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-11 06:58:44,172 INFO L168 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-11 06:58:44,172 INFO L538 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-11 06:58:44,214 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-11 06:58:44,253 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-11 06:58:44,253 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:44,258 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-11 06:58:44,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-11 06:58:44,290 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-11 06:58:44,298 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-11 06:58:44,298 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-11 06:58:44,427 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:44,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:44,431 INFO L85 PathProgramCache]: Analyzing trace with hash 1635012662, now seen corresponding path program 1 times [2022-02-11 06:58:44,437 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:44,438 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693443778] [2022-02-11 06:58:44,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:44,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:44,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:44,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:44,622 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:44,623 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693443778] [2022-02-11 06:58:44,623 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693443778] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 06:58:44,623 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 06:58:44,623 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-11 06:58:44,625 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1087019425] [2022-02-11 06:58:44,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 06:58:44,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-11 06:58:44,628 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:58:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-11 06:58:44,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-11 06:58:44,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:44,656 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:58:44,657 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 06:58:44,657 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:44,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:44,688 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-11 06:58:44,688 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:44,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:44,689 INFO L85 PathProgramCache]: Analyzing trace with hash -3323756, now seen corresponding path program 1 times [2022-02-11 06:58:44,689 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:44,689 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [118905658] [2022-02-11 06:58:44,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:44,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:44,726 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:58:44,726 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:44,726 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [118905658] [2022-02-11 06:58:44,726 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [118905658] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-11 06:58:44,727 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-11 06:58:44,727 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-02-11 06:58:44,727 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996675251] [2022-02-11 06:58:44,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-11 06:58:44,728 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-11 06:58:44,728 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:58:44,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-11 06:58:44,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-11 06:58:44,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:44,729 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:58:44,729 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 06:58:44,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:44,729 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:44,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:44,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:44,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-11 06:58:44,765 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:44,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:44,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1225896178, now seen corresponding path program 1 times [2022-02-11 06:58:44,766 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:44,766 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101269456] [2022-02-11 06:58:44,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:44,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:44,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:45,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:45,141 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:45,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101269456] [2022-02-11 06:58:45,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101269456] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:58:45,142 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [609943964] [2022-02-11 06:58:45,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:45,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:45,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:45,161 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) [2022-02-11 06:58:45,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-11 06:58:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:45,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 58 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-11 06:58:45,221 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:58:45,532 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:58:45,537 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 33 [2022-02-11 06:58:45,667 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:45,668 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:58:45,968 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:58:45,968 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 75 treesize of output 67 [2022-02-11 06:58:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:46,434 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [609943964] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:58:46,434 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:58:46,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 18 [2022-02-11 06:58:46,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059584602] [2022-02-11 06:58:46,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:58:46,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-11 06:58:46,435 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:58:46,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-11 06:58:46,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2022-02-11 06:58:46,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:46,436 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:58:46,436 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.1578947368421053) internal successors, (60), 18 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 06:58:46,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:46,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:46,436 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:46,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:58:46,748 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-11 06:58:46,948 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,SelfDestructingSolverStorable2 [2022-02-11 06:58:46,949 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:46,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:46,951 INFO L85 PathProgramCache]: Analyzing trace with hash -1487189424, now seen corresponding path program 2 times [2022-02-11 06:58:46,951 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:46,951 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072004085] [2022-02-11 06:58:46,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:46,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:46,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:47,024 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:47,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:47,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072004085] [2022-02-11 06:58:47,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072004085] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:58:47,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [279437005] [2022-02-11 06:58:47,025 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-11 06:58:47,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:47,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:47,027 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) [2022-02-11 06:58:47,044 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-11 06:58:47,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-11 06:58:47,073 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:58:47,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-11 06:58:47,075 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:58:47,165 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:47,166 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:58:47,264 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:47,264 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [279437005] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:58:47,264 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:58:47,264 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2022-02-11 06:58:47,265 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756845876] [2022-02-11 06:58:47,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:58:47,266 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-02-11 06:58:47,266 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:58:47,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-02-11 06:58:47,267 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=163, Unknown=0, NotChecked=0, Total=210 [2022-02-11 06:58:47,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:47,268 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:58:47,268 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 3.0) internal successors, (45), 15 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 06:58:47,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:47,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:47,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:58:47,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:58:47,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 06:58:47,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-11 06:58:47,671 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:47,671 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:47,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:47,672 INFO L85 PathProgramCache]: Analyzing trace with hash -1209890412, now seen corresponding path program 1 times [2022-02-11 06:58:47,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:47,672 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986106876] [2022-02-11 06:58:47,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:47,672 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:47,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:47,733 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:58:47,734 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:47,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986106876] [2022-02-11 06:58:47,734 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [986106876] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:58:47,734 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1207533275] [2022-02-11 06:58:47,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:47,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:47,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:47,735 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) [2022-02-11 06:58:47,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-11 06:58:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:47,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-11 06:58:47,775 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:58:47,867 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:58:47,868 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:58:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 06:58:47,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1207533275] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 06:58:47,958 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 06:58:47,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 14 [2022-02-11 06:58:47,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384177142] [2022-02-11 06:58:47,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 06:58:47,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-02-11 06:58:47,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 06:58:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-02-11 06:58:47,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2022-02-11 06:58:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:47,959 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 06:58:47,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.4285714285714284) internal successors, (48), 14 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 06:58:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:58:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-11 06:58:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 06:58:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 06:58:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 06:58:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 06:58:48,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 06:58:48,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 06:58:48,086 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-11 06:58:48,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:48,270 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 06:58:48,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 06:58:48,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2124471182, now seen corresponding path program 2 times [2022-02-11 06:58:48,271 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 06:58:48,271 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124939859] [2022-02-11 06:58:48,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 06:58:48,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 06:58:48,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 06:58:49,478 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:49,479 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 06:58:49,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124939859] [2022-02-11 06:58:49,479 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124939859] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 06:58:49,479 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [547404562] [2022-02-11 06:58:49,479 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-11 06:58:49,479 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 06:58:49,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 06:58:49,491 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) [2022-02-11 06:58:49,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-11 06:58:49,558 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-11 06:58:49,559 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 06:58:49,562 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 40 conjunts are in the unsatisfiable core [2022-02-11 06:58:49,563 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 06:58:51,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:58:51,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-11 06:58:51,589 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:58:51,589 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 239 treesize of output 193 [2022-02-11 06:58:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 06:58:55,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 06:59:08,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:59:08,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:59:08,245 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:59:08,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:59:08,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-11 06:59:08,297 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-11 06:59:08,297 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 5 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 1471 treesize of output 963 [2022-02-11 07:00:40,368 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:00:40,368 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [547404562] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 07:00:40,368 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 07:00:40,368 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16, 16] total 38 [2022-02-11 07:00:40,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085276069] [2022-02-11 07:00:40,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 07:00:40,369 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-11 07:00:40,369 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:00:40,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-11 07:00:40,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=185, Invalid=1221, Unknown=0, NotChecked=0, Total=1406 [2022-02-11 07:00:40,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:40,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:00:40,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.026315789473684) internal successors, (77), 38 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 07:00:40,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:40,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:40,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:44,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:44,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-11 07:00:44,631 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:44,631 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 07:00:44,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:00:44,632 INFO L85 PathProgramCache]: Analyzing trace with hash 267942830, now seen corresponding path program 3 times [2022-02-11 07:00:44,632 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:00:44,632 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214213740] [2022-02-11 07:00:44,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:00:44,632 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:00:44,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:00:44,742 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 9 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:00:44,742 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:00:44,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214213740] [2022-02-11 07:00:44,742 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214213740] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 07:00:44,742 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1072109154] [2022-02-11 07:00:44,742 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-11 07:00:44,743 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:44,743 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:00:44,744 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) [2022-02-11 07:00:44,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-11 07:00:44,787 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2022-02-11 07:00:44,787 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 07:00:44,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 12 conjunts are in the unsatisfiable core [2022-02-11 07:00:44,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:00:45,006 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:00:45,006 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 07:00:45,229 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:00:45,230 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1072109154] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 07:00:45,230 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 07:00:45,230 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 32 [2022-02-11 07:00:45,230 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267219439] [2022-02-11 07:00:45,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 07:00:45,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-11 07:00:45,230 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:00:45,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-11 07:00:45,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=800, Unknown=0, NotChecked=0, Total=992 [2022-02-11 07:00:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:45,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:00:45,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 2.46875) internal successors, (79), 32 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) [2022-02-11 07:00:45,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:45,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:45,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:45,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-11 07:00:45,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-11 07:00:46,164 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:46,165 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 07:00:46,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:00:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash -1368557002, now seen corresponding path program 4 times [2022-02-11 07:00:46,165 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:00:46,165 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609144720] [2022-02-11 07:00:46,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:00:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:00:46,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:00:46,281 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 36 proven. 25 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 07:00:46,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:00:46,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609144720] [2022-02-11 07:00:46,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609144720] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 07:00:46,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1643187510] [2022-02-11 07:00:46,282 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-11 07:00:46,282 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:46,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:00:46,284 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) [2022-02-11 07:00:46,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-11 07:00:46,310 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-11 07:00:46,311 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 07:00:46,311 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-11 07:00:46,312 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:00:46,459 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-11 07:00:46,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 07:00:46,613 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 34 proven. 25 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-02-11 07:00:46,613 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1643187510] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 07:00:46,613 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 07:00:46,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 27 [2022-02-11 07:00:46,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603978079] [2022-02-11 07:00:46,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 07:00:46,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-11 07:00:46,614 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:00:46,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-11 07:00:46,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=222, Invalid=480, Unknown=0, NotChecked=0, Total=702 [2022-02-11 07:00:46,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:46,615 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:00:46,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 27 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-11 07:00:46,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:46,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:46,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-11 07:00:46,852 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-11 07:00:46,868 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-11 07:00:47,052 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:47,053 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 07:00:47,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:00:47,053 INFO L85 PathProgramCache]: Analyzing trace with hash 421181588, now seen corresponding path program 5 times [2022-02-11 07:00:47,054 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:00:47,054 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661650416] [2022-02-11 07:00:47,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:00:47,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:00:47,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:00:47,157 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 07:00:47,157 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:00:47,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661650416] [2022-02-11 07:00:47,157 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661650416] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 07:00:47,157 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1906261048] [2022-02-11 07:00:47,157 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-11 07:00:47,157 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:00:47,157 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:00:47,172 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) [2022-02-11 07:00:47,173 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-11 07:00:47,203 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-11 07:00:47,203 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 07:00:47,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-11 07:00:47,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-11 07:00:47,342 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 07:00:47,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-11 07:00:47,492 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 36 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-11 07:00:47,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1906261048] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-11 07:00:47,493 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-11 07:00:47,493 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 30 [2022-02-11 07:00:47,493 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359247170] [2022-02-11 07:00:47,493 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-11 07:00:47,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-11 07:00:47,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-11 07:00:47,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-11 07:00:47,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=595, Unknown=0, NotChecked=0, Total=870 [2022-02-11 07:00:47,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:47,496 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-11 07:00:47,496 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.6666666666666665) internal successors, (80), 30 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-11 07:00:47,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-11 07:00:47,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-02-11 07:00:47,726 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-11 07:00:47,926 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,SelfDestructingSolverStorable8 [2022-02-11 07:00:47,927 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-11 07:00:47,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-11 07:00:47,927 INFO L85 PathProgramCache]: Analyzing trace with hash -1921919118, now seen corresponding path program 6 times [2022-02-11 07:00:47,927 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-11 07:00:47,927 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332615115] [2022-02-11 07:00:47,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-11 07:00:47,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-11 07:00:48,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-11 07:11:19,620 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 12 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-11 07:11:19,620 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-11 07:11:19,620 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332615115] [2022-02-11 07:11:19,621 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332615115] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-11 07:11:19,621 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [880394491] [2022-02-11 07:11:19,621 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-11 07:11:19,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-11 07:11:19,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-11 07:11:19,622 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) [2022-02-11 07:11:19,623 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-11 07:11:19,678 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-11 07:11:19,679 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-11 07:11:19,680 WARN L261 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 70 conjunts are in the unsatisfiable core [2022-02-11 07:11:19,681 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-11 07:13:19,606 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-11 07:13:19,607 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-11 07:13:19,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-11 07:13:19,631 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-11 07:13:19,631 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 [2022-02-11 07:13:19,632 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 [2022-02-11 07:13:19,824 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-11 07:13:19,824 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 10ms.. [2022-02-11 07:13:19,825 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-11 07:13:19,825 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-11 07:13:19,826 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-11 07:13:19,832 INFO L733 BasicCegarLoop]: Path program histogram: [6, 2, 1, 1] [2022-02-11 07:13:19,833 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-11 07:13:19,833 INFO L184 ceAbstractionStarter]: Computing trace abstraction results [2022-02-11 07:13:19,835 INFO L202 PluginConnector]: Adding new model min-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.02 07:13:19 BasicIcfg [2022-02-11 07:13:19,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-11 07:13:19,839 INFO L158 Benchmark]: Toolchain (without parser) took 875936.27ms. Allocated memory was 204.5MB in the beginning and 1.2GB in the end (delta: 953.2MB). Free memory was 163.6MB in the beginning and 492.0MB in the end (delta: -328.5MB). Peak memory consumption was 706.8MB. Max. memory is 8.0GB. [2022-02-11 07:13:19,839 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-11 07:13:19,840 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.85ms. Allocated memory is still 204.5MB. Free memory was 163.5MB in the beginning and 161.9MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 07:13:19,840 INFO L158 Benchmark]: Boogie Preprocessor took 10.47ms. Allocated memory is still 204.5MB. Free memory was 161.9MB in the beginning and 161.0MB in the end (delta: 968.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-11 07:13:19,840 INFO L158 Benchmark]: RCFGBuilder took 215.27ms. Allocated memory is still 204.5MB. Free memory was 160.9MB in the beginning and 151.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-11 07:13:19,841 INFO L158 Benchmark]: TraceAbstraction took 875678.50ms. Allocated memory was 204.5MB in the beginning and 1.2GB in the end (delta: 953.2MB). Free memory was 151.0MB in the beginning and 492.0MB in the end (delta: -341.0MB). Peak memory consumption was 695.3MB. Max. memory is 8.0GB. [2022-02-11 07:13:19,841 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 204.5MB. Free memory is still 164.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.85ms. Allocated memory is still 204.5MB. Free memory was 163.5MB 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 10.47ms. Allocated memory is still 204.5MB. Free memory was 161.9MB in the beginning and 161.0MB in the end (delta: 968.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 215.27ms. Allocated memory is still 204.5MB. Free memory was 160.9MB in the beginning and 151.5MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 875678.50ms. Allocated memory was 204.5MB in the beginning and 1.2GB in the end (delta: 953.2MB). Free memory was 151.0MB in the beginning and 492.0MB in the end (delta: -341.0MB). Peak memory consumption was 695.3MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2273, positive: 1913, positive conditional: 1594, positive unconditional: 319, negative: 360, negative conditional: 360, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1913, positive: 1913, positive conditional: 1594, positive unconditional: 319, 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: 1913, positive: 1913, positive conditional: 1594, positive unconditional: 319, 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: 1913, positive: 1913, positive conditional: 1486, positive unconditional: 427, 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: 1913, positive: 1913, positive conditional: 1337, positive unconditional: 576, 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: 1913, positive: 1913, positive conditional: 1337, positive unconditional: 576, 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: 307, positive: 307, positive conditional: 0, positive unconditional: 307, 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: 307, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1913, positive: 1606, positive conditional: 1337, positive unconditional: 269, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 307, unknown conditional: 0, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 307, Positive cache size: 307, Positive conditional cache size: 0, Positive unconditional cache size: 307, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 149, Maximal queried relation: 0, Independence queries for same thread: 360 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 21, Number of trivial persistent sets: 11, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 319, positive: 319, positive conditional: 0, positive unconditional: 319, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2273, positive: 1913, positive conditional: 1594, positive unconditional: 319, negative: 360, negative conditional: 360, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1913, positive: 1913, positive conditional: 1594, positive unconditional: 319, 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: 1913, positive: 1913, positive conditional: 1594, positive unconditional: 319, 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: 1913, positive: 1913, positive conditional: 1486, positive unconditional: 427, 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: 1913, positive: 1913, positive conditional: 1337, positive unconditional: 576, 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: 1913, positive: 1913, positive conditional: 1337, positive unconditional: 576, 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: 307, positive: 307, positive conditional: 0, positive unconditional: 307, 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: 307, positive: 305, positive conditional: 0, positive unconditional: 305, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 30, positive: 30, positive conditional: 0, positive unconditional: 30, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1913, positive: 1606, positive conditional: 1337, positive unconditional: 269, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 307, unknown conditional: 0, unknown unconditional: 307] , Statistics on independence cache: Total cache size (in pairs): 307, Positive cache size: 307, Positive conditional cache size: 0, Positive unconditional cache size: 307, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 149, Maximal queried relation: 0, Independence queries for same thread: 360 - 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 10ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 10ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 10ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 47 with TraceHistMax 7,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 10 for 10ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 875.6s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 6.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 172, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 115.4s InterpolantComputationTime, 486 NumberOfCodeBlocks, 486 NumberOfCodeBlocksAsserted, 29 NumberOfCheckSat, 687 ConstructedInterpolants, 11 QuantifiedInterpolants, 14743 SizeOfPredicates, 64 NumberOfNonLiveVariables, 581 ConjunctsInSsa, 113 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 281/586 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