/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 11:21:44,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 11:21:44,968 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 11:21:45,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 11:21:45,036 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 11:21:45,036 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 11:21:45,037 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 11:21:45,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 11:21:45,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 11:21:45,045 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 11:21:45,046 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 11:21:45,047 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 11:21:45,048 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 11:21:45,050 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 11:21:45,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 11:21:45,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 11:21:45,051 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 11:21:45,051 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 11:21:45,052 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 11:21:45,053 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 11:21:45,054 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 11:21:45,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 11:21:45,060 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 11:21:45,061 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 11:21:45,065 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 11:21:45,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 11:21:45,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 11:21:45,070 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 11:21:45,074 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 11:21:45,099 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 11:21:45,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 11:21:45,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 11:21:45,100 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 11:21:45,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 11:21:45,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 11:21:45,101 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 11:21:45,101 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 11:21:45,101 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 11:21:45,101 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 11:21:45,102 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 11:21:45,103 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 11:21:45,103 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 11:21:45,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 11:21:45,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:21:45,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 11:21:45,104 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 11:21:45,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 11:21:45,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 11:21:45,105 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 11:21:45,105 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 11:21:45,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 11:21:45,310 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 11:21:45,312 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 11:21:45,313 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 11:21:45,314 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 11:21:45,315 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl [2022-02-19 11:21:45,315 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/dot-product-alt.wvr.bpl' [2022-02-19 11:21:45,341 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 11:21:45,343 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 11:21:45,344 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 11:21:45,344 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 11:21:45,344 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 11:21:45,352 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,361 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,365 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 11:21:45,366 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 11:21:45,368 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 11:21:45,368 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 11:21:45,368 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 11:21:45,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,375 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,375 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,379 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,381 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,382 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,386 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 11:21:45,386 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 11:21:45,386 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 11:21:45,387 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 11:21:45,387 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/1) ... [2022-02-19 11:21:45,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 11:21:45,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:45,416 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) [2022-02-19 11:21:45,425 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 [2022-02-19 11:21:45,448 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 11:21:45,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 11:21:45,448 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 11:21:45,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 11:21:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 11:21:45,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 11:21:45,449 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 11:21:45,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 11:21:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 11:21:45,450 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 11:21:45,450 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 11:21:45,450 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 11:21:45,451 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 11:21:45,486 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 11:21:45,487 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 11:21:45,563 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 11:21:45,568 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 11:21:45,568 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 11:21:45,569 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:21:45 BoogieIcfgContainer [2022-02-19 11:21:45,578 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 11:21:45,579 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 11:21:45,579 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 11:21:45,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 11:21:45,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 11:21:45" (1/2) ... [2022-02-19 11:21:45,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b9878dc and model type dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 11:21:45, skipping insertion in model container [2022-02-19 11:21:45,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 11:21:45" (2/2) ... [2022-02-19 11:21:45,598 INFO L111 eAbstractionObserver]: Analyzing ICFG dot-product-alt.wvr.bpl [2022-02-19 11:21:45,601 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 11:21:45,601 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 11:21:45,602 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 11:21:45,602 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 11:21:45,643 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-19 11:21:45,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 11:21:45,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:45,671 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) [2022-02-19 11:21:45,672 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 [2022-02-19 11:21:45,700 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 11:21:45,704 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 11:21:45,704 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-19 11:21:47,652 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11834 transitions and produced 4148 states. [2022-02-19 11:21:47,654 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:21:47,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:21:47,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1598486337, now seen corresponding path program 1 times [2022-02-19 11:21:47,668 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:21:47,669 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098313623] [2022-02-19 11:21:47,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:21:47,669 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:21:47,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:21:48,331 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 280 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:21:48,331 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:21:48,331 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098313623] [2022-02-19 11:21:48,332 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098313623] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:21:48,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113721508] [2022-02-19 11:21:48,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:21:48,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:48,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:48,336 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) [2022-02-19 11:21:48,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 11:21:48,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:21:48,404 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-19 11:21:48,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:21:48,765 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 89 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-02-19 11:21:48,766 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:21:49,041 INFO L134 CoverageAnalysis]: Checked inductivity of 350 backedges. 89 proven. 12 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2022-02-19 11:21:49,041 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113721508] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:21:49,041 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:21:49,041 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 10, 10] total 39 [2022-02-19 11:21:49,043 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48790642] [2022-02-19 11:21:49,044 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:21:49,051 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-19 11:21:49,051 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:21:49,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-19 11:21:49,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=1220, Unknown=0, NotChecked=0, Total=1482 [2022-02-19 11:21:49,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:49,074 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:21:49,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 3.3846153846153846) internal successors, (132), 39 states have internal predecessors, (132), 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) [2022-02-19 11:21:49,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:51,464 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11850 transitions and produced 4164 states. [2022-02-19 11:21:51,464 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:51,481 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 11:21:51,669 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 11:21:51,670 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:21:51,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:21:51,670 INFO L85 PathProgramCache]: Analyzing trace with hash 2047927594, now seen corresponding path program 2 times [2022-02-19 11:21:51,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:21:51,671 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2119752303] [2022-02-19 11:21:51,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:21:51,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:21:51,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:21:52,003 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 280 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:21:52,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:21:52,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2119752303] [2022-02-19 11:21:52,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2119752303] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:21:52,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1962455800] [2022-02-19 11:21:52,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:21:52,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:52,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:52,005 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) [2022-02-19 11:21:52,006 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 11:21:52,045 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:21:52,045 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:21:52,046 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-19 11:21:52,048 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:21:52,387 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 122 proven. 22 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-02-19 11:21:52,388 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:21:52,690 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 122 proven. 22 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2022-02-19 11:21:52,690 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1962455800] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:21:52,690 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:21:52,690 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 12, 12] total 43 [2022-02-19 11:21:52,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149790994] [2022-02-19 11:21:52,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:21:52,691 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-19 11:21:52,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:21:52,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-19 11:21:52,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=1507, Unknown=0, NotChecked=0, Total=1806 [2022-02-19 11:21:52,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:52,693 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:21:52,693 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 3.3488372093023258) internal successors, (144), 43 states have internal predecessors, (144), 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) [2022-02-19 11:21:52,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:52,693 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:54,763 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11866 transitions and produced 4180 states. [2022-02-19 11:21:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:54,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:21:54,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 11:21:54,980 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:54,980 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:21:54,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:21:54,981 INFO L85 PathProgramCache]: Analyzing trace with hash -355614047, now seen corresponding path program 3 times [2022-02-19 11:21:54,981 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:21:54,981 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672397289] [2022-02-19 11:21:54,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:21:54,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:21:55,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:21:55,338 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 280 proven. 93 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:21:55,338 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:21:55,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672397289] [2022-02-19 11:21:55,339 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672397289] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:21:55,339 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [47738636] [2022-02-19 11:21:55,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:21:55,339 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:55,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:55,340 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) [2022-02-19 11:21:55,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 11:21:55,383 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2022-02-19 11:21:55,383 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:21:55,384 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-19 11:21:55,386 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:21:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 198 proven. 145 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-19 11:21:55,840 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:21:56,352 INFO L134 CoverageAnalysis]: Checked inductivity of 373 backedges. 308 proven. 35 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2022-02-19 11:21:56,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [47738636] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:21:56,352 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:21:56,352 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 19, 19] total 61 [2022-02-19 11:21:56,352 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222946643] [2022-02-19 11:21:56,352 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:21:56,353 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2022-02-19 11:21:56,353 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:21:56,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2022-02-19 11:21:56,354 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=644, Invalid=3016, Unknown=0, NotChecked=0, Total=3660 [2022-02-19 11:21:56,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:56,355 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:21:56,355 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 3.5081967213114753) internal successors, (214), 61 states have internal predecessors, (214), 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) [2022-02-19 11:21:56,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:56,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:21:56,355 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:57,123 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 657 transitions and produced 488 states. [2022-02-19 11:21:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:21:57,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:21:57,140 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 11:21:57,339 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:57,340 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:21:57,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:21:57,340 INFO L85 PathProgramCache]: Analyzing trace with hash -1307384054, now seen corresponding path program 4 times [2022-02-19 11:21:57,340 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:21:57,340 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888499757] [2022-02-19 11:21:57,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:21:57,340 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:21:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:21:57,716 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 280 proven. 203 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:21:57,717 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:21:57,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888499757] [2022-02-19 11:21:57,717 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [888499757] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:21:57,717 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930822895] [2022-02-19 11:21:57,717 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:21:57,717 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:21:57,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:21:57,718 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) [2022-02-19 11:21:57,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 11:21:57,757 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:21:57,758 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:21:57,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-19 11:21:57,761 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:21:58,444 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 228 proven. 184 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-19 11:21:58,444 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:21:59,221 INFO L134 CoverageAnalysis]: Checked inductivity of 483 backedges. 267 proven. 145 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-02-19 11:21:59,222 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930822895] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:21:59,222 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:21:59,222 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 25, 25] total 76 [2022-02-19 11:21:59,222 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1685056635] [2022-02-19 11:21:59,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:21:59,223 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-02-19 11:21:59,223 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:21:59,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-02-19 11:21:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=985, Invalid=4715, Unknown=0, NotChecked=0, Total=5700 [2022-02-19 11:21:59,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:21:59,225 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:21:59,225 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 76 states, 76 states have (on average 3.1578947368421053) internal successors, (240), 76 states have internal predecessors, (240), 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) [2022-02-19 11:21:59,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:21:59,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:21:59,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:21:59,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:22:00,126 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 673 transitions and produced 516 states. [2022-02-19 11:22:00,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:22:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:22:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:22:00,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-19 11:22:00,143 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 11:22:00,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:00,328 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:22:00,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:22:00,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1671039807, now seen corresponding path program 5 times [2022-02-19 11:22:00,328 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:22:00,328 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1518989949] [2022-02-19 11:22:00,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:22:00,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:22:00,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:22:00,750 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 280 proven. 234 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:22:00,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:22:00,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1518989949] [2022-02-19 11:22:00,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1518989949] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:22:00,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1776892884] [2022-02-19 11:22:00,751 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:22:00,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:00,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:22:00,754 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) [2022-02-19 11:22:00,795 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 11:22:00,817 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2022-02-19 11:22:00,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:22:00,818 INFO L263 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-19 11:22:00,820 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:22:01,577 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 224 proven. 234 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-02-19 11:22:01,577 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:22:02,380 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 282 proven. 176 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2022-02-19 11:22:02,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1776892884] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:22:02,380 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:22:02,380 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 27, 27] total 80 [2022-02-19 11:22:02,380 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [347664170] [2022-02-19 11:22:02,380 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:22:02,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-02-19 11:22:02,381 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:22:02,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-02-19 11:22:02,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1089, Invalid=5231, Unknown=0, NotChecked=0, Total=6320 [2022-02-19 11:22:02,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:22:02,384 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:22:02,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.15) internal successors, (252), 80 states have internal predecessors, (252), 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) [2022-02-19 11:22:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:22:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:22:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:22:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-19 11:22:02,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:22:03,273 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 689 transitions and produced 532 states. [2022-02-19 11:22:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:22:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:22:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:22:03,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-19 11:22:03,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:22:03,293 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 11:22:03,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:03,479 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:22:03,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:22:03,480 INFO L85 PathProgramCache]: Analyzing trace with hash 862910378, now seen corresponding path program 6 times [2022-02-19 11:22:03,480 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:22:03,480 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650260312] [2022-02-19 11:22:03,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:22:03,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:22:03,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:22:03,898 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 280 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:22:03,899 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:22:03,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650260312] [2022-02-19 11:22:03,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650260312] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:22:03,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [450154859] [2022-02-19 11:22:03,899 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 11:22:03,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:03,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:22:03,900 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) [2022-02-19 11:22:03,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 11:22:03,951 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 14 check-sat command(s) [2022-02-19 11:22:03,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:22:03,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 35 conjunts are in the unsatisfiable core [2022-02-19 11:22:03,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:22:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 280 proven. 268 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:22:04,909 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:22:06,113 INFO L134 CoverageAnalysis]: Checked inductivity of 548 backedges. 338 proven. 210 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:22:06,114 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [450154859] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:22:06,114 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:22:06,114 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 36, 36] total 101 [2022-02-19 11:22:06,114 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156058534] [2022-02-19 11:22:06,114 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:22:06,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 101 states [2022-02-19 11:22:06,115 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:22:06,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 101 interpolants. [2022-02-19 11:22:06,118 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2025, Invalid=8075, Unknown=0, NotChecked=0, Total=10100 [2022-02-19 11:22:06,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:22:06,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:22:06,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 101 states, 101 states have (on average 3.0792079207920793) internal successors, (311), 101 states have internal predecessors, (311), 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) [2022-02-19 11:22:06,118 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:22:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:22:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:22:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-19 11:22:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:22:06,119 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:22:07,622 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 817 transitions and produced 639 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-02-19 11:22:07,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-19 11:22:07,639 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 11:22:07,823 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:07,823 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 11:22:07,824 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:22:07,824 INFO L85 PathProgramCache]: Analyzing trace with hash -1336047062, now seen corresponding path program 7 times [2022-02-19 11:22:07,824 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:22:07,824 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808658013] [2022-02-19 11:22:07,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:22:07,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:22:07,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:22:19,410 INFO L134 CoverageAnalysis]: Checked inductivity of 928 backedges. 128 proven. 800 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 11:22:19,410 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:22:19,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808658013] [2022-02-19 11:22:19,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808658013] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:22:19,411 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282482370] [2022-02-19 11:22:19,411 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 11:22:19,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:22:19,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:22:19,412 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) [2022-02-19 11:22:19,413 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 11:22:19,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:22:19,478 WARN L261 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 168 conjunts are in the unsatisfiable core [2022-02-19 11:22:19,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:22:38,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,049 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,062 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,062 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,064 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,066 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,075 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,078 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,081 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:38,087 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:38,103 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 190 disjoint index pairs (out of 325 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 387 treesize of output 297 [2022-02-19 11:22:51,263 WARN L228 SmtUtils]: Spent 13.14s on a formula simplification. DAG size of input: 1785 DAG size of output: 1251 (called from [L 350] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.arrays.Elim1Store.elim1) [2022-02-19 11:22:51,274 INFO L353 Elim1Store]: treesize reduction 2278, result has 58.0 percent of original size [2022-02-19 11:22:51,274 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 26 select indices, 26 select index equivalence classes, 0 disjoint index pairs (out of 325 index pairs), introduced 26 new quantified variables, introduced 325 case distinctions, treesize of input 297 treesize of output 3195 [2022-02-19 11:22:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,416 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,418 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,418 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,419 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,423 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,429 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,430 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,431 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,432 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,433 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,434 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,437 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,438 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,439 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,444 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,448 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-19 11:22:51,453 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-19 11:22:51,456 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 26 select indices, 26 select index equivalence classes, 190 disjoint index pairs (out of 325 index pairs), introduced 20 new quantified variables, introduced 0 case distinctions, treesize of input 4308 treesize of output 3458 Received shutdown request... [2022-02-19 11:35:56,996 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 [2022-02-19 11:35:56,996 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 [2022-02-19 11:35:56,996 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 11:35:57,042 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-19 11:35:57,044 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-19 11:35:57,059 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 11:35:57,244 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 11:35:57,245 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 139 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 54ms.. [2022-02-19 11:35:57,246 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-19 11:35:57,246 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-19 11:35:57,246 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-19 11:35:57,250 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-02-19 11:35:57,252 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 11:35:57,252 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 11:35:57,253 INFO L202 PluginConnector]: Adding new model dot-product-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:35:57 BasicIcfg [2022-02-19 11:35:57,253 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 11:35:57,254 INFO L158 Benchmark]: Toolchain (without parser) took 851911.05ms. Allocated memory was 203.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 163.3MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-19 11:35:57,254 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 203.4MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 11:35:57,254 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.22ms. Allocated memory is still 203.4MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 11:35:57,254 INFO L158 Benchmark]: Boogie Preprocessor took 17.74ms. Allocated memory is still 203.4MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 992.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 11:35:57,254 INFO L158 Benchmark]: RCFGBuilder took 191.32ms. Allocated memory is still 203.4MB. Free memory was 160.6MB in the beginning and 151.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 11:35:57,255 INFO L158 Benchmark]: TraceAbstraction took 851674.58ms. Allocated memory was 203.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 151.2MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-19 11:35:57,256 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 203.4MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.22ms. Allocated memory is still 203.4MB. Free memory was 163.2MB in the beginning and 161.7MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.74ms. Allocated memory is still 203.4MB. Free memory was 161.7MB in the beginning and 160.7MB in the end (delta: 992.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 191.32ms. Allocated memory is still 203.4MB. Free memory was 160.6MB in the beginning and 151.7MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 851674.58ms. Allocated memory was 203.4MB in the beginning and 2.8GB in the end (delta: 2.6GB). Free memory was 151.2MB in the beginning and 1.5GB in the end (delta: -1.3GB). Peak memory consumption was 1.8GB. 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: 61]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 139 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 54ms.. - TimeoutResultAtElement [Line: 54]: 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 139 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 54ms.. - TimeoutResultAtElement [Line: 54]: 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 139 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 54ms.. - TimeoutResultAtElement [Line: 55]: 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 139 with TraceHistMax 20,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 54ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 851.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 10.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 277, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 9.7s InterpolantComputationTime, 1206 NumberOfCodeBlocks, 1200 NumberOfCodeBlocksAsserted, 50 NumberOfCheckSat, 1791 ConstructedInterpolants, 0 QuantifiedInterpolants, 11035 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1091 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 5471/7884 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