/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/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 23:47:26,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 23:47:26,300 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 23:47:26,349 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 23:47:26,349 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 23:47:26,351 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 23:47:26,361 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 23:47:26,362 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 23:47:26,363 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 23:47:26,364 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 23:47:26,365 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 23:47:26,365 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 23:47:26,365 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 23:47:26,366 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 23:47:26,367 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 23:47:26,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 23:47:26,368 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 23:47:26,368 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 23:47:26,369 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 23:47:26,372 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 23:47:26,373 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 23:47:26,376 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 23:47:26,377 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 23:47:26,378 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 23:47:26,379 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 23:47:26,385 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 23:47:26,385 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 23:47:26,386 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 23:47:26,400 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 [2022-03-01 23:47:26,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 23:47:26,435 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 23:47:26,441 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 23:47:26,442 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 23:47:26,443 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 23:47:26,443 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 23:47:26,443 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 23:47:26,443 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 23:47:26,443 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 23:47:26,443 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 23:47:26,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 23:47:26,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 23:47:26,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:47:26,446 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 23:47:26,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 23:47:26,447 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 23:47:26,447 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 23:47:26,447 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 23:47:26,447 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 23:47:26,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 23:47:26,623 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 23:47:26,625 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 23:47:26,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 23:47:26,626 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 23:47:26,627 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-03-01 23:47:26,627 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-03-01 23:47:26,642 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 23:47:26,643 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 23:47:26,644 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 23:47:26,644 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 23:47:26,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 23:47:26,654 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,659 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,663 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 23:47:26,663 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 23:47:26,664 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 23:47:26,664 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 23:47:26,664 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 23:47:26,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,671 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,674 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 23:47:26,675 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 23:47:26,675 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 23:47:26,675 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 23:47:26,691 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/1) ... [2022-03-01 23:47:26,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:47:26,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:47:26,729 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) [2022-03-01 23:47:26,761 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 [2022-03-01 23:47:26,788 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 23:47:26,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 23:47:26,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 23:47:26,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 23:47:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 23:47:26,789 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 23:47:26,789 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 23:47:26,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 23:47:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 23:47:26,790 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-01 23:47:26,790 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-01 23:47:26,790 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-01 23:47:26,791 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-01 23:47:26,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-01 23:47:26,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-01 23:47:26,794 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 23:47:26,834 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 23:47:26,835 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 23:47:26,970 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 23:47:26,984 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 23:47:26,984 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 23:47:26,986 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:47:26 BoogieIcfgContainer [2022-03-01 23:47:26,986 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 23:47:26,987 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 23:47:26,987 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 23:47:26,989 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 23:47:26,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:47:26" (1/2) ... [2022-03-01 23:47:26,990 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c084504 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 11:47:26, skipping insertion in model container [2022-03-01 23:47:26,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:47:26" (2/2) ... [2022-03-01 23:47:26,991 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-03-01 23:47:26,994 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 23:47:26,994 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 23:47:26,994 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 23:47:26,995 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 23:47:27,023 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 23:47:27,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 23:47:27,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:47:27,086 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) [2022-03-01 23:47:27,111 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 [2022-03-01 23:47:27,115 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 23:47:27,119 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 [2022-03-01 23:47:27,119 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 23:47:27,566 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1006 transitions and produced 792 states. [2022-03-01 23:47:27,568 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:47:27,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:47:27,576 INFO L85 PathProgramCache]: Analyzing trace with hash 59602232, now seen corresponding path program 1 times [2022-03-01 23:47:27,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:47:27,584 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642488337] [2022-03-01 23:47:27,584 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:47:27,584 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:47:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:47:28,872 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2029 proven. 434 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2022-03-01 23:47:28,873 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:47:28,873 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642488337] [2022-03-01 23:47:28,874 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642488337] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:47:28,874 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [721566231] [2022-03-01 23:47:28,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:47:28,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:47:28,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:47:28,891 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) [2022-03-01 23:47:28,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 23:47:29,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:47:29,020 INFO L263 TraceCheckSpWp]: Trace formula consists of 550 conjuncts, 53 conjunts are in the unsatisfiable core [2022-03-01 23:47:29,027 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:47:29,907 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2416 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-01 23:47:29,907 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:47:30,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2517 backedges. 2416 proven. 8 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2022-03-01 23:47:30,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [721566231] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:47:30,511 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:47:30,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 26, 26] total 85 [2022-03-01 23:47:30,513 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1432246701] [2022-03-01 23:47:30,513 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:47:30,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 86 states [2022-03-01 23:47:30,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:47:30,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 86 interpolants. [2022-03-01 23:47:30,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1748, Invalid=5562, Unknown=0, NotChecked=0, Total=7310 [2022-03-01 23:47:30,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:47:30,542 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:47:30,545 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 86 states, 86 states have (on average 5.034883720930233) internal successors, (433), 85 states have internal predecessors, (433), 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) [2022-03-01 23:47:30,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:47:33,688 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2531 transitions and produced 1974 states. [2022-03-01 23:47:33,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-01 23:47:33,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 23:47:33,903 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-01 23:47:33,904 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:47:33,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:47:33,905 INFO L85 PathProgramCache]: Analyzing trace with hash -229668852, now seen corresponding path program 2 times [2022-03-01 23:47:33,905 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:47:33,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775239989] [2022-03-01 23:47:33,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:47:33,905 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:47:34,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:47:36,009 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 6466 proven. 7241 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2022-03-01 23:47:36,009 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:47:36,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775239989] [2022-03-01 23:47:36,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775239989] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:47:36,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1068610156] [2022-03-01 23:47:36,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 23:47:36,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:47:36,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:47:36,014 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) [2022-03-01 23:47:36,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 23:47:36,176 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 23:47:36,176 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:47:36,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 138 conjunts are in the unsatisfiable core [2022-03-01 23:47:36,194 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:47:39,640 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 11950 proven. 1723 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-01 23:47:39,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:47:41,524 INFO L134 CoverageAnalysis]: Checked inductivity of 13826 backedges. 11950 proven. 1723 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2022-03-01 23:47:41,525 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1068610156] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:47:41,525 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:47:41,525 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 69, 69] total 182 [2022-03-01 23:47:41,525 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [811281462] [2022-03-01 23:47:41,525 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:47:41,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 183 states [2022-03-01 23:47:41,526 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:47:41,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 183 interpolants. [2022-03-01 23:47:41,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8685, Invalid=24621, Unknown=0, NotChecked=0, Total=33306 [2022-03-01 23:47:41,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:47:41,536 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:47:41,537 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 183 states, 183 states have (on average 4.726775956284153) internal successors, (865), 182 states have internal predecessors, (865), 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) [2022-03-01 23:47:41,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-03-01 23:47:41,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:47:48,612 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3766 transitions and produced 3050 states. [2022-03-01 23:47:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2022-03-01 23:47:48,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-01 23:47:48,632 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 23:47:48,830 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:47:48,831 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:47:48,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:47:48,831 INFO L85 PathProgramCache]: Analyzing trace with hash -1363352154, now seen corresponding path program 3 times [2022-03-01 23:47:48,831 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:47:48,831 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652688047] [2022-03-01 23:47:48,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:47:48,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:47:49,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:47:54,195 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 13194 proven. 18609 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-03-01 23:47:54,195 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:47:54,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652688047] [2022-03-01 23:47:54,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652688047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:47:54,196 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [152675981] [2022-03-01 23:47:54,196 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 23:47:54,196 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:47:54,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:47:54,197 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) [2022-03-01 23:47:54,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 23:47:54,921 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 79 check-sat command(s) [2022-03-01 23:47:54,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:47:54,930 INFO L263 TraceCheckSpWp]: Trace formula consists of 1306 conjuncts, 27 conjunts are in the unsatisfiable core [2022-03-01 23:47:54,946 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:47:56,288 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 14755 proven. 3183 refuted. 0 times theorem prover too weak. 13987 trivial. 0 not checked. [2022-03-01 23:47:56,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:47:57,320 INFO L134 CoverageAnalysis]: Checked inductivity of 31925 backedges. 14755 proven. 3183 refuted. 0 times theorem prover too weak. 13987 trivial. 0 not checked. [2022-03-01 23:47:57,321 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [152675981] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:47:57,321 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:47:57,321 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 15, 15] total 172 [2022-03-01 23:47:57,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995070114] [2022-03-01 23:47:57,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:47:57,325 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 173 states [2022-03-01 23:47:57,325 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:47:57,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 173 interpolants. [2022-03-01 23:47:57,332 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6944, Invalid=22812, Unknown=0, NotChecked=0, Total=29756 [2022-03-01 23:47:57,332 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:47:57,333 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:47:57,334 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 173 states, 173 states have (on average 4.08092485549133) internal successors, (706), 172 states have internal predecessors, (706), 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) [2022-03-01 23:47:57,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2022-03-01 23:47:57,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-01 23:47:57,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:48:09,000 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7035 transitions and produced 4999 states. [2022-03-01 23:48:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:48:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:48:09,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:48:09,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 23:48:09,219 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:48:09,219 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:48:09,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:48:09,220 INFO L85 PathProgramCache]: Analyzing trace with hash -669997996, now seen corresponding path program 4 times [2022-03-01 23:48:09,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:48:09,221 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584484995] [2022-03-01 23:48:09,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:48:09,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:48:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:48:20,194 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 45718 proven. 50864 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-01 23:48:20,194 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:48:20,194 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584484995] [2022-03-01 23:48:20,194 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584484995] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:48:20,195 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2111797857] [2022-03-01 23:48:20,195 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 23:48:20,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:48:20,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:48:20,196 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) [2022-03-01 23:48:20,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 23:48:20,595 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 23:48:20,595 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:48:20,644 INFO L263 TraceCheckSpWp]: Trace formula consists of 2691 conjuncts, 350 conjunts are in the unsatisfiable core [2022-03-01 23:48:20,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:48:38,447 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 88159 proven. 8211 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-03-01 23:48:38,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:48:48,442 INFO L134 CoverageAnalysis]: Checked inductivity of 96855 backedges. 88159 proven. 8211 refuted. 0 times theorem prover too weak. 485 trivial. 0 not checked. [2022-03-01 23:48:48,443 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2111797857] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:48:48,443 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:48:48,443 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [210, 199, 199] total 529 [2022-03-01 23:48:48,443 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [397558164] [2022-03-01 23:48:48,444 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:48:48,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 530 states [2022-03-01 23:48:48,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:48:48,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 530 interpolants. [2022-03-01 23:48:48,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83694, Invalid=196676, Unknown=0, NotChecked=0, Total=280370 [2022-03-01 23:48:48,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:48:48,535 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:48:48,536 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 530 states, 530 states have (on average 4.2075471698113205) internal successors, (2230), 529 states have internal predecessors, (2230), 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) [2022-03-01 23:48:48,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:48:48,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:48:48,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:48:48,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:51:03,758 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10096 transitions and produced 7672 states. [2022-03-01 23:51:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:51:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:51:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:51:03,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-01 23:51:03,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 23:51:03,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:51:03,973 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:51:03,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:51:03,974 INFO L85 PathProgramCache]: Analyzing trace with hash 627685006, now seen corresponding path program 5 times [2022-03-01 23:51:03,974 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:51:03,974 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323989170] [2022-03-01 23:51:03,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:51:03,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:51:06,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:51:41,317 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 88003 proven. 126066 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-03-01 23:51:41,318 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:51:41,318 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323989170] [2022-03-01 23:51:41,318 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323989170] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:51:41,321 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500266936] [2022-03-01 23:51:41,321 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 23:51:41,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:51:41,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:51:41,322 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:51:41,323 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 23:51:48,357 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 324 check-sat command(s) [2022-03-01 23:51:48,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:51:48,431 INFO L263 TraceCheckSpWp]: Trace formula consists of 4057 conjuncts, 48 conjunts are in the unsatisfiable core [2022-03-01 23:51:48,444 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:51:53,197 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 77196 proven. 33779 refuted. 0 times theorem prover too weak. 103367 trivial. 0 not checked. [2022-03-01 23:51:53,197 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:51:55,402 INFO L134 CoverageAnalysis]: Checked inductivity of 214342 backedges. 77196 proven. 33779 refuted. 0 times theorem prover too weak. 103367 trivial. 0 not checked. [2022-03-01 23:51:55,403 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500266936] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:51:55,403 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:51:55,403 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [413, 25, 25] total 440 [2022-03-01 23:51:55,403 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104546153] [2022-03-01 23:51:55,403 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:51:55,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 441 states [2022-03-01 23:51:55,405 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:51:55,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 441 interpolants. [2022-03-01 23:51:55,466 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50221, Invalid=143819, Unknown=0, NotChecked=0, Total=194040 [2022-03-01 23:51:55,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:51:55,466 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:51:55,467 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 441 states, 441 states have (on average 3.6417233560090705) internal successors, (1606), 440 states have internal predecessors, (1606), 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) [2022-03-01 23:51:55,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:51:55,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:51:55,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:51:55,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-03-01 23:51:55,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:54:27,145 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15507 transitions and produced 10766 states. [2022-03-01 23:54:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:54:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:54:27,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:54:27,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-01 23:54:27,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 783 states. [2022-03-01 23:54:27,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 23:54:27,371 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:54:27,372 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-01 23:54:27,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:54:27,372 INFO L85 PathProgramCache]: Analyzing trace with hash 1465084782, now seen corresponding path program 6 times [2022-03-01 23:54:27,372 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:54:27,372 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049959693] [2022-03-01 23:54:27,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:54:27,373 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:54:31,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:55:32,738 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 189114 proven. 222029 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2022-03-01 23:55:32,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:55:32,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049959693] [2022-03-01 23:55:32,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049959693] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:55:32,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2124160636] [2022-03-01 23:55:32,739 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-01 23:55:32,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:55:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:55:32,740 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:55:32,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-01 23:56:08,701 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 471 check-sat command(s) [2022-03-01 23:56:08,701 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:56:08,774 INFO L263 TraceCheckSpWp]: Trace formula consists of 5360 conjuncts, 68 conjunts are in the unsatisfiable core [2022-03-01 23:56:08,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:56:18,085 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 166443 proven. 73514 refuted. 0 times theorem prover too weak. 171619 trivial. 0 not checked. [2022-03-01 23:56:18,086 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:56:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 411576 backedges. 166443 proven. 73514 refuted. 0 times theorem prover too weak. 171619 trivial. 0 not checked. [2022-03-01 23:56:21,815 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2124160636] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:56:21,815 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:56:21,815 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [506, 35, 35] total 543 [2022-03-01 23:56:21,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [722532173] [2022-03-01 23:56:21,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:56:21,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 544 states [2022-03-01 23:56:21,819 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:56:21,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 544 interpolants. [2022-03-01 23:56:21,838 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70197, Invalid=225195, Unknown=0, NotChecked=0, Total=295392 [2022-03-01 23:56:21,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:56:21,838 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:56:21,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 544 states, 544 states have (on average 3.9246323529411766) internal successors, (2135), 543 states have internal predecessors, (2135), 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) [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 112 states. [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 312 states. [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 503 states. [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 783 states. [2022-03-01 23:56:21,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 00:01:01,367 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19908 transitions and produced 14215 states. [2022-03-02 00:01:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2022-03-02 00:01:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-02 00:01:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 312 states. [2022-03-02 00:01:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 503 states. [2022-03-02 00:01:01,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 783 states. [2022-03-02 00:01:01,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 961 states. [2022-03-02 00:01:01,396 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 00:01:01,581 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 00:01:01,582 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 00:01:01,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 00:01:01,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1186789198, now seen corresponding path program 7 times [2022-03-02 00:01:01,583 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 00:01:01,583 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740674552] [2022-03-02 00:01:01,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 00:01:01,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 00:01:08,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-02 00:01:46,777 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-02 00:01:46,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-02 00:01:46,777 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. [2022-03-02 00:01:46,780 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-02 00:01:46,780 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-02 00:01:46,780 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-02 00:01:46,780 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-02 00:01:46,811 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 [2022-03-02 00:01:46,811 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 [2022-03-02 00:01:46,812 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-02 00:01:46,820 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 00:01:46,820 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 00:01:46,846 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 12:01:46 BasicIcfg [2022-03-02 00:01:46,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 00:01:46,848 INFO L158 Benchmark]: Toolchain (without parser) took 860203.54ms. Allocated memory was 180.4MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 138.1MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-02 00:01:46,848 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 180.4MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 00:01:46,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.52ms. Allocated memory is still 180.4MB. Free memory was 138.1MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-02 00:01:46,849 INFO L158 Benchmark]: Boogie Preprocessor took 10.22ms. Allocated memory is still 180.4MB. Free memory was 136.5MB in the beginning and 135.5MB in the end (delta: 920.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 00:01:46,849 INFO L158 Benchmark]: RCFGBuilder took 311.07ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 125.5MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-02 00:01:46,850 INFO L158 Benchmark]: TraceAbstraction took 859859.32ms. Allocated memory was 180.4MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 125.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-02 00:01:46,853 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 180.4MB. Free memory is still 139.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.52ms. Allocated memory is still 180.4MB. Free memory was 138.1MB in the beginning and 136.5MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.22ms. Allocated memory is still 180.4MB. Free memory was 136.5MB in the beginning and 135.5MB in the end (delta: 920.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 311.07ms. Allocated memory is still 180.4MB. Free memory was 135.4MB in the beginning and 125.5MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 859859.32ms. Allocated memory was 180.4MB in the beginning and 2.8GB in the end (delta: 2.7GB). Free memory was 125.0MB in the beginning and 1.5GB in the end (delta: -1.4GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 2835 with TraceHistMax 674,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 301 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 859.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 588.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2869, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 51.3s SatisfiabilityAnalysisTime, 172.0s InterpolantComputationTime, 12162 NumberOfCodeBlocks, 11998 NumberOfCodeBlocksAsserted, 884 NumberOfCheckSat, 18225 ConstructedInterpolants, 0 QuantifiedInterpolants, 116058 SizeOfPredicates, 0 NumberOfNonLiveVariables, 15097 ConjunctsInSsa, 684 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 1647044/2313123 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