/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 04:08:47,456 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:08:47,458 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:08:47,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 04:08:47,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 04:08:47,505 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 04:08:47,506 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 04:08:47,507 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 04:08:47,508 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 04:08:47,509 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 04:08:47,509 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 04:08:47,510 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 04:08:47,510 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:08:47,511 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:08:47,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:08:47,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:08:47,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:08:47,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:08:47,514 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:08:47,515 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:08:47,516 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:08:47,519 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:08:47,520 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:08:47,520 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:08:47,522 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:08:47,527 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:08:47,527 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:08:47,528 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:08:47,533 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-20 04:08:47,554 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:08:47,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:08:47,555 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:08:47,555 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:08:47,560 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:08:47,560 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:08:47,560 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:08:47,560 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:08:47,561 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:08:47,561 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:08:47,561 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:08:47,561 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:08:47,561 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:08:47,561 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:08:47,562 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:08:47,562 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:08:47,563 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:08:47,563 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:08:47,563 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:08:47,564 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:08:47,564 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:08:47,565 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:08:47,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:08:47,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:08:47,750 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:08:47,751 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:08:47,755 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:08:47,756 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-02-20 04:08:47,756 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-02-20 04:08:47,775 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:08:47,776 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:08:47,778 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:08:47,778 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:08:47,778 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:08:47,791 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,796 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,801 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:08:47,802 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:08:47,803 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:08:47,803 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:08:47,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:08:47,808 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,808 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,809 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,811 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,813 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,814 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:08:47,815 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:08:47,815 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:08:47,815 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:08:47,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/1) ... [2022-02-20 04:08:47,821 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:08:47,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:08:47,838 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) [2022-02-20 04:08:47,841 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 [2022-02-20 04:08:47,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:08:47,861 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:08:47,861 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:08:47,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:08:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:08:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:08:47,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:08:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:08:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:08:47,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:08:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:08:47,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:08:47,862 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-20 04:08:47,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-20 04:08:47,863 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-20 04:08:47,863 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 04:08:47,896 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:08:47,898 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:08:47,969 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:08:47,981 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:08:47,982 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:08:47,983 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:08:47 BoogieIcfgContainer [2022-02-20 04:08:47,983 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:08:47,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:08:47,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:08:47,986 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:08:47,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:08:47" (1/2) ... [2022-02-20 04:08:47,987 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@225885fe and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:08:47, skipping insertion in model container [2022-02-20 04:08:47,987 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:08:47" (2/2) ... [2022-02-20 04:08:47,988 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-02-20 04:08:47,991 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:08:47,991 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:08:47,991 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:08:47,991 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:08:48,036 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-20 04:08:48,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:08:48,083 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:08:48,084 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) [2022-02-20 04:08:48,085 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 [2022-02-20 04:08:48,119 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:08:48,124 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 04:08:48,124 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-20 04:08:48,416 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-02-20 04:08:48,418 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:08:48,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:08:48,425 INFO L85 PathProgramCache]: Analyzing trace with hash 170228445, now seen corresponding path program 1 times [2022-02-20 04:08:48,431 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:08:48,432 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712250884] [2022-02-20 04:08:48,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:08:48,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:08:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:08:48,799 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-02-20 04:08:48,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:08:48,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712250884] [2022-02-20 04:08:48,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712250884] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 04:08:48,801 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 04:08:48,801 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 04:08:48,802 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070430800] [2022-02-20 04:08:48,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 04:08:48,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 04:08:48,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:08:48,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 04:08:48,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 04:08:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:48,877 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:08:48,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 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) [2022-02-20 04:08:48,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:48,962 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-02-20 04:08:48,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:48,963 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 04:08:48,963 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:08:48,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:08:48,965 INFO L85 PathProgramCache]: Analyzing trace with hash -1501018683, now seen corresponding path program 2 times [2022-02-20 04:08:48,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:08:48,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532795570] [2022-02-20 04:08:48,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:08:48,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:08:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:08:50,288 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2472 proven. 446 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2022-02-20 04:08:50,288 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:08:50,288 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532795570] [2022-02-20 04:08:50,289 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532795570] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:08:50,289 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107467528] [2022-02-20 04:08:50,289 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:08:50,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:08:50,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:08:50,292 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) [2022-02-20 04:08:50,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 04:08:50,403 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:08:50,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:08:50,407 INFO L263 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-20 04:08:50,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:08:51,418 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2585 proven. 120 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-02-20 04:08:51,418 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:08:52,214 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 2585 proven. 120 refuted. 0 times theorem prover too weak. 252 trivial. 0 not checked. [2022-02-20 04:08:52,214 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107467528] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:08:52,214 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:08:52,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 21, 21] total 77 [2022-02-20 04:08:52,215 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818635064] [2022-02-20 04:08:52,215 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:08:52,216 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-02-20 04:08:52,216 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:08:52,217 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-02-20 04:08:52,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1406, Invalid=4600, Unknown=0, NotChecked=0, Total=6006 [2022-02-20 04:08:52,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:52,221 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:08:52,221 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 5.487179487179487) internal successors, (428), 77 states have internal predecessors, (428), 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) [2022-02-20 04:08:52,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:52,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:54,553 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2532 transitions and produced 1961 states. [2022-02-20 04:08:54,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:54,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:08:54,572 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 04:08:54,763 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,SelfDestructingSolverStorable1 [2022-02-20 04:08:54,764 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:08:54,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:08:54,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1249696097, now seen corresponding path program 3 times [2022-02-20 04:08:54,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:08:54,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034515410] [2022-02-20 04:08:54,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:08:54,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:08:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:08:54,876 INFO L134 CoverageAnalysis]: Checked inductivity of 12695 backedges. 271 proven. 0 refuted. 0 times theorem prover too weak. 12424 trivial. 0 not checked. [2022-02-20 04:08:54,876 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:08:54,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034515410] [2022-02-20 04:08:54,877 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034515410] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 04:08:54,877 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 04:08:54,877 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 04:08:54,877 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625560374] [2022-02-20 04:08:54,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 04:08:54,878 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 04:08:54,878 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:08:54,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 04:08:54,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 04:08:54,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:54,879 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:08:54,879 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-02-20 04:08:54,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:54,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:08:54,880 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:08:54,922 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2505 transitions and produced 1936 states. [2022-02-20 04:08:54,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:54,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:08:54,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:08:54,928 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-20 04:08:54,928 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:08:54,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:08:54,934 INFO L85 PathProgramCache]: Analyzing trace with hash -2090280474, now seen corresponding path program 4 times [2022-02-20 04:08:54,934 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:08:54,934 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [487209750] [2022-02-20 04:08:54,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:08:54,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:08:55,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:08:57,728 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 5765 proven. 6603 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-20 04:08:57,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:08:57,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [487209750] [2022-02-20 04:08:57,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [487209750] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:08:57,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [680037349] [2022-02-20 04:08:57,729 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:08:57,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:08:57,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:08:57,740 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) [2022-02-20 04:08:57,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 04:08:57,905 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:08:57,906 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:08:57,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 1150 conjuncts, 128 conjunts are in the unsatisfiable core [2022-02-20 04:08:57,924 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:09:01,174 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 10132 proven. 2078 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-20 04:09:01,175 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:09:02,639 INFO L134 CoverageAnalysis]: Checked inductivity of 12437 backedges. 10132 proven. 2078 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-20 04:09:02,639 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [680037349] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:09:02,640 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:09:02,640 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [89, 64, 64] total 177 [2022-02-20 04:09:02,640 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496379839] [2022-02-20 04:09:02,640 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:09:02,641 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 178 states [2022-02-20 04:09:02,641 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:09:02,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 178 interpolants. [2022-02-20 04:09:02,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7635, Invalid=23871, Unknown=0, NotChecked=0, Total=31506 [2022-02-20 04:09:02,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:09:02,648 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:09:02,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 178 states, 178 states have (on average 4.904494382022472) internal successors, (873), 177 states have internal predecessors, (873), 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) [2022-02-20 04:09:02,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:02,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:09:02,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:02,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:09:08,285 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3747 transitions and produced 2962 states. [2022-02-20 04:09:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:09:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:09:08,303 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 04:09:08,486 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 [2022-02-20 04:09:08,486 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:09:08,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:09:08,487 INFO L85 PathProgramCache]: Analyzing trace with hash -157571938, now seen corresponding path program 5 times [2022-02-20 04:09:08,487 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:09:08,487 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191184681] [2022-02-20 04:09:08,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:09:08,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:09:08,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:09:14,929 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 13820 proven. 15406 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-20 04:09:14,929 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:09:14,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191184681] [2022-02-20 04:09:14,929 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [191184681] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:09:14,929 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1666255653] [2022-02-20 04:09:14,929 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:09:14,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:09:14,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:09:14,931 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) [2022-02-20 04:09:14,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 04:09:15,538 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 122 check-sat command(s) [2022-02-20 04:09:15,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:09:15,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 1633 conjuncts, 201 conjunts are in the unsatisfiable core [2022-02-20 04:09:15,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:09:22,666 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 23407 proven. 5662 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-20 04:09:22,667 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:09:25,213 INFO L134 CoverageAnalysis]: Checked inductivity of 29296 backedges. 23407 proven. 5662 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-20 04:09:25,213 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1666255653] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:09:25,213 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:09:25,214 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 109, 109] total 304 [2022-02-20 04:09:25,214 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182724044] [2022-02-20 04:09:25,214 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:09:25,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-02-20 04:09:25,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:09:25,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-02-20 04:09:25,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24579, Invalid=68141, Unknown=0, NotChecked=0, Total=92720 [2022-02-20 04:09:25,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:09:25,229 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:09:25,230 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 4.380327868852459) internal successors, (1336), 304 states have internal predecessors, (1336), 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) [2022-02-20 04:09:25,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:25,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:09:25,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:25,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:09:25,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:09:39,897 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5142 transitions and produced 4088 states. [2022-02-20 04:09:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:09:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:39,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:09:39,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:09:39,916 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 04:09:40,100 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 [2022-02-20 04:09:40,100 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:09:40,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:09:40,101 INFO L85 PathProgramCache]: Analyzing trace with hash 275097556, now seen corresponding path program 6 times [2022-02-20 04:09:40,101 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:09:40,101 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705340517] [2022-02-20 04:09:40,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:09:40,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:09:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:09:54,338 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 27950 proven. 29671 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-02-20 04:09:54,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:09:54,338 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705340517] [2022-02-20 04:09:54,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705340517] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:09:54,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1614373377] [2022-02-20 04:09:54,339 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:09:54,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:09:54,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:09:54,340 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) [2022-02-20 04:09:54,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 04:09:54,440 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-02-20 04:09:54,440 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:09:54,441 INFO L263 TraceCheckSpWp]: Trace formula consists of 256 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-20 04:09:54,449 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:09:55,533 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 401 proven. 5 refuted. 0 times theorem prover too weak. 57285 trivial. 0 not checked. [2022-02-20 04:09:55,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:09:56,215 INFO L134 CoverageAnalysis]: Checked inductivity of 57691 backedges. 401 proven. 5 refuted. 0 times theorem prover too weak. 57285 trivial. 0 not checked. [2022-02-20 04:09:56,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1614373377] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:09:56,216 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:09:56,216 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [244, 6, 6] total 249 [2022-02-20 04:09:56,216 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530173695] [2022-02-20 04:09:56,216 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:09:56,218 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 249 states [2022-02-20 04:09:56,218 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:09:56,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 249 interpolants. [2022-02-20 04:09:56,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16920, Invalid=44832, Unknown=0, NotChecked=0, Total=61752 [2022-02-20 04:09:56,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:09:56,224 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:09:56,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 249 states, 249 states have (on average 3.3815261044176705) internal successors, (842), 249 states have internal predecessors, (842), 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) [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:09:56,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:10:18,446 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 6224 transitions and produced 5025 states. [2022-02-20 04:10:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:10:18,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:10:18,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:10:18,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:10:18,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:10:18,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:10:18,467 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 04:10:18,647 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 [2022-02-20 04:10:18,648 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:10:18,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:10:18,648 INFO L85 PathProgramCache]: Analyzing trace with hash -239918399, now seen corresponding path program 7 times [2022-02-20 04:10:18,648 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:10:18,648 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838986117] [2022-02-20 04:10:18,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:10:18,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:10:19,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:10:40,089 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 48177 proven. 36174 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-20 04:10:40,089 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:10:40,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838986117] [2022-02-20 04:10:40,089 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1838986117] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:10:40,089 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [935075173] [2022-02-20 04:10:40,089 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:10:40,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:10:40,089 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:10:40,090 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) [2022-02-20 04:10:40,091 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 04:10:40,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:10:40,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 2590 conjuncts, 340 conjunts are in the unsatisfiable core [2022-02-20 04:10:40,461 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:11:01,850 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 68330 proven. 15834 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-20 04:11:01,851 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:11:09,084 INFO L134 CoverageAnalysis]: Checked inductivity of 84425 backedges. 68330 proven. 15834 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-20 04:11:09,085 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [935075173] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:11:09,085 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:11:09,085 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [294, 199, 199] total 575 [2022-02-20 04:11:09,085 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548843901] [2022-02-20 04:11:09,085 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:11:09,088 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 576 states [2022-02-20 04:11:09,088 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:11:09,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 576 interpolants. [2022-02-20 04:11:09,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=93900, Invalid=237300, Unknown=0, NotChecked=0, Total=331200 [2022-02-20 04:11:09,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:11:09,116 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:11:09,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 576 states, 576 states have (on average 3.9809027777777777) internal successors, (2293), 575 states have internal predecessors, (2293), 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) [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:11:09,117 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:12:39,254 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7997 transitions and produced 6405 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:12:39,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-20 04:12:39,277 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-20 04:12:39,455 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 [2022-02-20 04:12:39,456 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:12:39,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:12:39,457 INFO L85 PathProgramCache]: Analyzing trace with hash 481992479, now seen corresponding path program 8 times [2022-02-20 04:12:39,457 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:12:39,457 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [277046242] [2022-02-20 04:12:39,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:12:39,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:12:41,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:13:20,349 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 74457 proven. 71061 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-20 04:13:20,350 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:13:20,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [277046242] [2022-02-20 04:13:20,350 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [277046242] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:13:20,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [497752048] [2022-02-20 04:13:20,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:13:20,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:13:20,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:13:20,351 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) [2022-02-20 04:13:20,352 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 04:13:20,799 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:13:20,799 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:13:20,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 3427 conjuncts, 472 conjunts are in the unsatisfiable core [2022-02-20 04:13:20,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:13:57,672 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 99830 proven. 45501 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-20 04:13:57,673 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:14:03,228 INFO L134 CoverageAnalysis]: Checked inductivity of 145592 backedges. 99830 proven. 45501 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2022-02-20 04:14:03,228 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [497752048] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:14:03,228 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:14:03,228 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [426, 244, 244] total 710 [2022-02-20 04:14:03,229 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957515059] [2022-02-20 04:14:03,229 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:14:03,231 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 711 states [2022-02-20 04:14:03,231 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:14:03,246 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 711 interpolants. [2022-02-20 04:14:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=130683, Invalid=374127, Unknown=0, NotChecked=0, Total=504810 [2022-02-20 04:14:03,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:14:03,268 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:14:03,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 711 states, 711 states have (on average 3.7988748241912798) internal successors, (2701), 710 states have internal predecessors, (2701), 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) [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-02-20 04:14:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:16:28,573 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9392 transitions and produced 7531 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-20 04:16:28,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 712 states. [2022-02-20 04:16:28,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-20 04:16:28,774 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 [2022-02-20 04:16:28,777 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:16:28,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:16:28,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1667363273, now seen corresponding path program 9 times [2022-02-20 04:16:28,778 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:16:28,778 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933619192] [2022-02-20 04:16:28,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:16:28,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:16:31,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:17:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 106812 proven. 97566 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-20 04:17:27,911 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:17:27,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933619192] [2022-02-20 04:17:27,911 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933619192] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:17:27,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1503810919] [2022-02-20 04:17:27,912 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:17:27,913 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:17:27,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:17:27,914 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) [2022-02-20 04:17:27,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 04:17:28,047 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2022-02-20 04:17:28,047 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:17:28,049 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-20 04:17:28,064 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:17:30,488 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 1166 proven. 15 refuted. 0 times theorem prover too weak. 203271 trivial. 0 not checked. [2022-02-20 04:17:30,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:17:31,724 INFO L134 CoverageAnalysis]: Checked inductivity of 204452 backedges. 1166 proven. 15 refuted. 0 times theorem prover too weak. 203271 trivial. 0 not checked. [2022-02-20 04:17:31,725 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1503810919] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:17:31,725 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:17:31,725 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [516, 8, 8] total 524 [2022-02-20 04:17:31,725 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102457327] [2022-02-20 04:17:31,725 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:17:31,727 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 524 states [2022-02-20 04:17:31,727 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:17:31,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 524 interpolants. [2022-02-20 04:17:31,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86528, Invalid=187524, Unknown=0, NotChecked=0, Total=274052 [2022-02-20 04:17:31,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:17:31,746 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:17:31,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 524 states, 524 states have (on average 2.9580152671755724) internal successors, (1550), 524 states have internal predecessors, (1550), 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) [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 712 states. [2022-02-20 04:17:31,747 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:19:59,624 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10464 transitions and produced 8440 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 512 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 712 states. [2022-02-20 04:19:59,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1059 states. [2022-02-20 04:19:59,642 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-20 04:19:59,826 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 [2022-02-20 04:19:59,826 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-20 04:19:59,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:19:59,827 INFO L85 PathProgramCache]: Analyzing trace with hash -2115466825, now seen corresponding path program 10 times [2022-02-20 04:19:59,827 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:19:59,827 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976508422] [2022-02-20 04:19:59,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:19:59,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:20:02,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:21:14,035 INFO L134 CoverageAnalysis]: Checked inductivity of 250431 backedges. 145390 proven. 104966 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2022-02-20 04:21:14,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:21:14,035 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976508422] [2022-02-20 04:21:14,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976508422] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:21:14,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1117321304] [2022-02-20 04:21:14,036 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:21:14,036 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:21:14,036 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:21:14,037 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) [2022-02-20 04:21:14,038 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 04:21:14,652 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:21:14,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:21:14,737 INFO L263 TraceCheckSpWp]: Trace formula consists of 4377 conjuncts, 611 conjunts are in the unsatisfiable core [2022-02-20 04:21:14,753 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-02-20 04:21:17,834 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 [2022-02-20 04:21:17,834 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 [2022-02-20 04:21:17,837 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-20 04:21:17,843 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 [2022-02-20 04:21:17,862 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-20 04:21:18,043 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 [2022-02-20 04:21:18,044 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. [2022-02-20 04:21:18,045 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-20 04:21:18,045 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-20 04:21:18,045 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-20 04:21:18,046 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-20 04:21:18,051 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-02-20 04:21:18,057 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:21:18,057 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:21:18,059 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:21:18 BasicIcfg [2022-02-20 04:21:18,059 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:21:18,060 INFO L158 Benchmark]: Toolchain (without parser) took 750283.76ms. Allocated memory was 186.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 151.9MB in the beginning and 780.5MB in the end (delta: -628.6MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-20 04:21:18,060 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 186.6MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:21:18,060 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.84ms. Allocated memory is still 186.6MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:21:18,061 INFO L158 Benchmark]: Boogie Preprocessor took 10.74ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 149.3MB in the end (delta: 921.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:21:18,061 INFO L158 Benchmark]: RCFGBuilder took 168.70ms. Allocated memory is still 186.6MB. Free memory was 149.2MB in the beginning and 139.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-20 04:21:18,061 INFO L158 Benchmark]: TraceAbstraction took 750074.74ms. Allocated memory was 186.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 138.5MB in the beginning and 780.5MB in the end (delta: -641.9MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-20 04:21:18,065 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 0.11ms. Allocated memory is still 186.6MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.84ms. Allocated memory is still 186.6MB. Free memory was 151.9MB in the beginning and 150.3MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.74ms. Allocated memory is still 186.6MB. Free memory was 150.3MB in the beginning and 149.3MB in the end (delta: 921.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 168.70ms. Allocated memory is still 186.6MB. Free memory was 149.2MB in the beginning and 139.0MB in the end (delta: 10.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 750074.74ms. Allocated memory was 186.6MB in the beginning and 1.9GB in the end (delta: 1.8GB). Free memory was 138.5MB in the beginning and 780.5MB in the end (delta: -641.9MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. - TimeoutResultAtElement [Line: 74]: 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 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. - TimeoutResultAtElement [Line: 76]: 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 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. - TimeoutResultAtElement [Line: 74]: 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 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. - TimeoutResultAtElement [Line: 75]: 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 1710 with TraceHistMax 346,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 597 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 750.0s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 428.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3423, 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: 0.4s SsaConstructionTime, 7.3s SatisfiabilityAnalysisTime, 233.2s InterpolantComputationTime, 12911 NumberOfCodeBlocks, 10682 NumberOfCodeBlocksAsserted, 155 NumberOfCheckSat, 18999 ConstructedInterpolants, 0 QuantifiedInterpolants, 103368 SizeOfPredicates, 0 NumberOfNonLiveVariables, 9953 ConjunctsInSsa, 1220 ConjunctsInUnsatCore, 23 InterpolantComputations, 2 PerfectInterpolantSequences, 1230650/1626007 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