/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/two-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 06:42:32,821 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 06:42:32,823 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 06:42:32,883 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-16 06:42:32,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 06:42:32,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 06:42:32,908 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 06:42:32,910 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 06:42:32,911 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 06:42:32,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 06:42:32,917 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 06:42:32,920 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 06:42:32,921 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 06:42:32,926 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 06:42:32,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 06:42:32,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 06:42:32,930 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 06:42:32,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 06:42:32,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 06:42:32,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 06:42:32,946 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 [2022-03-16 06:42:32,982 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 06:42:32,982 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 06:42:32,983 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 06:42:32,983 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 06:42:32,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 06:42:32,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 06:42:32,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 06:42:32,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 06:42:32,984 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 06:42:32,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 06:42:32,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 06:42:32,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 06:42:32,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 06:42:32,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:42:32,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 06:42:32,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 06:42:32,988 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 06:42:32,988 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 06:42:32,988 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 06:42:32,988 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 06:42:33,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 06:42:33,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 06:42:33,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 06:42:33,247 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 06:42:33,251 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 06:42:33,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl [2022-03-16 06:42:33,253 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/two-queue.wvr.bpl' [2022-03-16 06:42:33,274 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 06:42:33,275 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 06:42:33,276 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 06:42:33,276 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 06:42:33,276 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 06:42:33,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,291 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,298 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 06:42:33,299 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 06:42:33,300 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 06:42:33,300 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 06:42:33,300 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 06:42:33,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,307 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,308 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,308 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,310 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,315 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 06:42:33,316 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 06:42:33,316 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 06:42:33,316 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 06:42:33,317 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/1) ... [2022-03-16 06:42:33,324 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 06:42:33,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:33,348 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 06:42:33,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 06:42:33,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 06:42:33,386 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 06:42:33,386 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 06:42:33,386 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 06:42:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 06:42:33,387 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 06:42:33,387 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 06:42:33,387 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 06:42:33,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 06:42:33,389 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 06:42:33,432 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 06:42:33,433 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 06:42:33,565 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 06:42:33,581 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 06:42:33,581 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 06:42:33,583 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:42:33 BoogieIcfgContainer [2022-03-16 06:42:33,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 06:42:33,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 06:42:33,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 06:42:33,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 06:42:33,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 06:42:33" (1/2) ... [2022-03-16 06:42:33,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4a6b5f4a and model type two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 06:42:33, skipping insertion in model container [2022-03-16 06:42:33,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 06:42:33" (2/2) ... [2022-03-16 06:42:33,593 INFO L111 eAbstractionObserver]: Analyzing ICFG two-queue.wvr.bpl [2022-03-16 06:42:33,597 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 06:42:33,598 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 06:42:33,598 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 06:42:33,598 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 06:42:33,635 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 06:42:33,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 06:42:33,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:33,742 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 06:42:33,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 06:42:33,795 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 06:42:33,806 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 [2022-03-16 06:42:33,806 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 06:42:34,107 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 393 transitions and produced 346 states. [2022-03-16 06:42:34,109 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:42:34,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:42:34,118 INFO L85 PathProgramCache]: Analyzing trace with hash -1158612125, now seen corresponding path program 1 times [2022-03-16 06:42:34,127 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:42:34,127 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875580664] [2022-03-16 06:42:34,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:42:34,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:42:34,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:42:34,361 INFO L134 CoverageAnalysis]: Checked inductivity of 1584 backedges. 79 proven. 0 refuted. 0 times theorem prover too weak. 1505 trivial. 0 not checked. [2022-03-16 06:42:34,361 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:42:34,362 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875580664] [2022-03-16 06:42:34,362 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1875580664] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:42:34,362 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 06:42:34,363 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-16 06:42:34,364 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882374673] [2022-03-16 06:42:34,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:42:34,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 06:42:34,372 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:42:34,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 06:42:34,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 06:42:34,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:34,397 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:42:34,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 2 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:42:34,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:34,636 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 333 transitions and produced 293 states. [2022-03-16 06:42:34,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:34,637 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 06:42:34,637 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:42:34,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:42:34,640 INFO L85 PathProgramCache]: Analyzing trace with hash -479472553, now seen corresponding path program 2 times [2022-03-16 06:42:34,641 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:42:34,641 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1207587281] [2022-03-16 06:42:34,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:42:34,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:42:34,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:42:34,940 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 168 proven. 2 refuted. 0 times theorem prover too weak. 1018 trivial. 0 not checked. [2022-03-16 06:42:34,940 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:42:34,940 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1207587281] [2022-03-16 06:42:34,941 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1207587281] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:42:34,941 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [831225326] [2022-03-16 06:42:34,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 06:42:34,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:34,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:34,943 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:42:34,944 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 06:42:35,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 06:42:35,086 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:42:35,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 4 conjunts are in the unsatisfiable core [2022-03-16 06:42:35,098 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:42:35,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 168 proven. 0 refuted. 0 times theorem prover too weak. 1020 trivial. 0 not checked. [2022-03-16 06:42:35,392 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-03-16 06:42:35,392 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [831225326] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 06:42:35,393 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-03-16 06:42:35,393 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 4 [2022-03-16 06:42:35,394 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [523648153] [2022-03-16 06:42:35,395 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 06:42:35,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-16 06:42:35,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:42:35,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-16 06:42:35,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-16 06:42:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:35,398 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:42:35,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:42:35,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:35,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:35,525 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 304 transitions and produced 247 states. [2022-03-16 06:42:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 06:42:35,551 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 06:42:35,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2022-03-16 06:42:35,736 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:42:35,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:42:35,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1602754043, now seen corresponding path program 3 times [2022-03-16 06:42:35,737 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:42:35,737 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130457891] [2022-03-16 06:42:35,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:42:35,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:42:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:42:35,992 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 442 proven. 96 refuted. 0 times theorem prover too weak. 332 trivial. 0 not checked. [2022-03-16 06:42:35,992 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:42:35,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130457891] [2022-03-16 06:42:35,993 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2130457891] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:42:35,993 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [6969943] [2022-03-16 06:42:35,993 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 06:42:35,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:35,994 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:35,995 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:42:35,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 06:42:36,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-03-16 06:42:36,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:42:36,145 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 06:42:36,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:42:36,514 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 477 proven. 62 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-03-16 06:42:36,515 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:42:36,782 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 477 proven. 62 refuted. 0 times theorem prover too weak. 331 trivial. 0 not checked. [2022-03-16 06:42:36,783 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [6969943] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:42:36,783 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:42:36,783 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 8 [2022-03-16 06:42:36,783 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1363807607] [2022-03-16 06:42:36,784 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:42:36,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-16 06:42:36,784 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:42:36,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-16 06:42:36,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=38, Unknown=0, NotChecked=0, Total=72 [2022-03-16 06:42:36,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:36,785 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:42:36,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.888888888888889) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:42:36,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:36,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 06:42:36,786 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:36,902 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 310 transitions and produced 260 states. [2022-03-16 06:42:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 06:42:36,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 06:42:36,925 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 06:42:37,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:37,120 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:42:37,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:42:37,120 INFO L85 PathProgramCache]: Analyzing trace with hash -539350755, now seen corresponding path program 4 times [2022-03-16 06:42:37,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:42:37,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369279837] [2022-03-16 06:42:37,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:42:37,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:42:37,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:42:37,297 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 432 proven. 56 refuted. 0 times theorem prover too weak. 398 trivial. 0 not checked. [2022-03-16 06:42:37,297 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:42:37,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369279837] [2022-03-16 06:42:37,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369279837] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:42:37,298 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [201406651] [2022-03-16 06:42:37,298 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 06:42:37,299 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:37,299 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:37,304 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:42:37,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 06:42:37,390 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 06:42:37,391 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:42:37,393 INFO L263 TraceCheckSpWp]: Trace formula consists of 388 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 06:42:37,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:42:37,675 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 470 proven. 35 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-03-16 06:42:37,676 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:42:37,944 INFO L134 CoverageAnalysis]: Checked inductivity of 886 backedges. 470 proven. 35 refuted. 0 times theorem prover too weak. 381 trivial. 0 not checked. [2022-03-16 06:42:37,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [201406651] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 06:42:37,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 06:42:37,945 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 8 [2022-03-16 06:42:37,945 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244294816] [2022-03-16 06:42:37,945 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 06:42:37,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-03-16 06:42:37,946 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 06:42:37,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-03-16 06:42:37,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2022-03-16 06:42:37,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:37,947 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 06:42:37,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.333333333333333) internal successors, (57), 8 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-16 06:42:37,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:37,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2022-03-16 06:42:37,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-03-16 06:42:37,948 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 06:42:38,040 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 205 states. [2022-03-16 06:42:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 06:42:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-16 06:42:38,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-03-16 06:42:38,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-16 06:42:38,061 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 06:42:38,251 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:38,251 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 06:42:38,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 06:42:38,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1035792897, now seen corresponding path program 5 times [2022-03-16 06:42:38,252 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 06:42:38,252 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022254220] [2022-03-16 06:42:38,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 06:42:38,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 06:42:38,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 06:42:39,162 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 1 proven. 197 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-03-16 06:42:39,162 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 06:42:39,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022254220] [2022-03-16 06:42:39,163 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022254220] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 06:42:39,163 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214581730] [2022-03-16 06:42:39,163 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 06:42:39,163 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:42:39,163 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 06:42:39,165 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 06:42:39,166 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 06:42:39,242 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-03-16 06:42:39,242 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 06:42:39,246 WARN L261 TraceCheckSpWp]: Trace formula consists of 292 conjuncts, 158 conjunts are in the unsatisfiable core [2022-03-16 06:42:39,249 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 06:42:48,395 INFO L353 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2022-03-16 06:42:48,395 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 273 treesize of output 189 [2022-03-16 06:42:48,868 INFO L353 Elim1Store]: treesize reduction 640, result has 0.2 percent of original size [2022-03-16 06:42:48,869 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 148 treesize of output 62 [2022-03-16 06:42:48,987 INFO L134 CoverageAnalysis]: Checked inductivity of 462 backedges. 120 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 06:42:48,987 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 06:43:04,139 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,142 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,143 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,150 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,152 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,153 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,157 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,159 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,160 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,161 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,175 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,184 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,186 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,187 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,189 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,190 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,191 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,193 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,194 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,196 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,197 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,198 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,199 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,200 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,201 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,202 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,203 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,204 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,205 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,207 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,209 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,211 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,213 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,215 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,216 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,217 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,218 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,219 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,220 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,221 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,222 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,223 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,224 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,226 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,227 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,228 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,229 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,230 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,231 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,232 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,233 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,234 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,235 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,237 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,238 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,239 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,241 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,242 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,244 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,246 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,247 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,248 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,249 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,250 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,251 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,253 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,255 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,256 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,259 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,260 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,261 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,262 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,263 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,264 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,265 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,266 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,267 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,268 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 06:43:04,269 INFO L244 Elim1Store]: Index analysis took 132 ms [2022-03-16 06:43:04,850 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 06:43:04,851 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 165 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 66 case distinctions, treesize of input 312 treesize of output 988 [2022-03-16 06:44:38,076 INFO L353 Elim1Store]: treesize reduction 1500, result has 44.2 percent of original size [2022-03-16 06:44:38,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 1211 treesize of output 1837 Received shutdown request... [2022-03-16 06:56:23,900 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-16 06:56:23,901 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 06:56:23,901 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 06:56:23,902 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 06:56:23,903 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 06:56:23,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 06:56:24,103 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 06:56:24,104 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 100 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. [2022-03-16 06:56:24,108 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 06:56:24,108 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 06:56:24,114 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-16 06:56:24,116 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 06:56:24,116 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 06:56:24,117 INFO L202 PluginConnector]: Adding new model two-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 06:56:24 BasicIcfg [2022-03-16 06:56:24,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 06:56:24,118 INFO L158 Benchmark]: Toolchain (without parser) took 830843.04ms. Allocated memory was 181.4MB in the beginning and 697.3MB in the end (delta: 515.9MB). Free memory was 140.1MB in the beginning and 351.6MB in the end (delta: -211.5MB). Peak memory consumption was 425.5MB. Max. memory is 8.0GB. [2022-03-16 06:56:24,118 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.63ms. Allocated memory is still 181.4MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 06:56:24,119 INFO L158 Benchmark]: Boogie Procedure Inliner took 23.26ms. Allocated memory is still 181.4MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 06:56:24,119 INFO L158 Benchmark]: Boogie Preprocessor took 14.63ms. Allocated memory is still 181.4MB. Free memory was 138.5MB in the beginning and 137.6MB in the end (delta: 918.9kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 06:56:24,119 INFO L158 Benchmark]: RCFGBuilder took 266.65ms. Allocated memory is still 181.4MB. Free memory was 137.5MB in the beginning and 127.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-16 06:56:24,120 INFO L158 Benchmark]: TraceAbstraction took 830533.40ms. Allocated memory was 181.4MB in the beginning and 697.3MB in the end (delta: 515.9MB). Free memory was 127.2MB in the beginning and 351.6MB in the end (delta: -224.4MB). Peak memory consumption was 412.9MB. Max. memory is 8.0GB. [2022-03-16 06:56:24,122 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 0.63ms. Allocated memory is still 181.4MB. Free memory is still 141.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 23.26ms. Allocated memory is still 181.4MB. Free memory was 140.0MB in the beginning and 138.5MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 14.63ms. Allocated memory is still 181.4MB. Free memory was 138.5MB in the beginning and 137.6MB in the end (delta: 918.9kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 266.65ms. Allocated memory is still 181.4MB. Free memory was 137.5MB in the beginning and 127.7MB in the end (delta: 9.8MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 830533.40ms. Allocated memory was 181.4MB in the beginning and 697.3MB in the end (delta: 515.9MB). Free memory was 127.2MB in the beginning and 351.6MB in the end (delta: -224.4MB). Peak memory consumption was 412.9MB. 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: 62]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 100 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - TimeoutResultAtElement [Line: 57]: 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 100 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - TimeoutResultAtElement [Line: 57]: 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 100 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 20ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 830.4s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 18, 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, 0.6s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 957 NumberOfCodeBlocks, 957 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 1210 ConstructedInterpolants, 0 QuantifiedInterpolants, 3442 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1188 ConjunctsInSsa, 57 ConjunctsInUnsatCore, 9 InterpolantComputations, 2 PerfectInterpolantSequences, 8880/9228 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