/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:11:43,310 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:11:43,311 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:11:43,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 11:11:43,364 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 11:11:43,366 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 11:11:43,368 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 11:11:43,373 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 11:11:43,375 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 11:11:43,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 11:11:43,379 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 11:11:43,381 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 11:11:43,381 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:11:43,383 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:11:43,384 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:11:43,386 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:11:43,387 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:11:43,387 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:11:43,389 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:11:43,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:11:43,395 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:11:43,396 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:11:43,397 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:11:43,398 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:11:43,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:11:43,412 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:11:43,413 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:11:43,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:11:43,414 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-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:11:43,450 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:11:43,450 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:11:43,451 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:11:43,451 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:11:43,452 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:11:43,452 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:11:43,452 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:11:43,452 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:11:43,452 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:11:43,453 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:11:43,453 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:11:43,454 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:11:43,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:11:43,455 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:11:43,455 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:11:43,456 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:11:43,456 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:11:43,456 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:11:43,456 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:11:43,670 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:11:43,694 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:11:43,697 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:11:43,698 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:11:43,699 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:11:43,700 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl [2022-03-04 11:11:43,700 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl' [2022-03-04 11:11:43,727 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:11:43,728 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:11:43,729 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:11:43,729 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:11:43,729 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:11:43,739 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,744 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,750 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:11:43,751 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:11:43,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:11:43,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:11:43,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:11:43,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,761 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,762 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,763 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,765 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,768 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:11:43,769 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:11:43,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:11:43,769 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:11:43,770 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/1) ... [2022-03-04 11:11:43,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:11:43,782 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:11:43,794 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) [2022-03-04 11:11:43,815 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 [2022-03-04 11:11:43,828 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:11:43,828 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:11:43,828 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:11:43,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:11:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:11:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:11:43,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:11:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:11:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:11:43,829 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:11:43,829 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:11:43,829 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:11:43,830 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 11:11:43,830 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 11:11:43,830 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 11:11:43,831 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:11:43,868 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:11:43,869 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:11:43,940 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:11:43,959 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:11:43,960 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-04 11:11:43,960 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-03-04 11:11:43,961 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-03-04 11:11:43,961 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2022-03-04 11:11:43,962 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:11:43 BoogieIcfgContainer [2022-03-04 11:11:43,963 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:11:43,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:11:43,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:11:43,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:11:43,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:11:43" (1/2) ... [2022-03-04 11:11:43,979 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4dc453 and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:11:43, skipping insertion in model container [2022-03-04 11:11:43,980 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:11:43" (2/2) ... [2022-03-04 11:11:43,981 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2022-03-04 11:11:43,985 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:11:43,985 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:11:43,985 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:11:43,985 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:11:44,026 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-03-04 11:11:44,060 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:11:44,060 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:11:44,061 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) [2022-03-04 11:11:44,075 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 [2022-03-04 11:11:44,110 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:11:44,116 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 11:11:44,117 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-04 11:11:44,288 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 167 transitions and produced 151 states. [2022-03-04 11:11:44,290 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:11:44,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:11:44,295 INFO L85 PathProgramCache]: Analyzing trace with hash 493289081, now seen corresponding path program 1 times [2022-03-04 11:11:44,303 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:11:44,303 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274914733] [2022-03-04 11:11:44,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:11:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:11:44,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:11:44,468 INFO L134 CoverageAnalysis]: Checked inductivity of 281 backedges. 96 proven. 0 refuted. 0 times theorem prover too weak. 185 trivial. 0 not checked. [2022-03-04 11:11:44,469 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:11:44,469 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274914733] [2022-03-04 11:11:44,471 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274914733] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:11:44,471 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 11:11:44,472 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 11:11:44,473 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873805163] [2022-03-04 11:11:44,474 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:11:44,477 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 11:11:44,478 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:11:44,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 11:11:44,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 11:11:44,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:44,499 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:11:44,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 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) [2022-03-04 11:11:44,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:44,628 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 100 transitions and produced 96 states. [2022-03-04 11:11:44,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:44,644 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 11:11:44,644 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:11:44,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:11:44,645 INFO L85 PathProgramCache]: Analyzing trace with hash -61785869, now seen corresponding path program 2 times [2022-03-04 11:11:44,645 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:11:44,645 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71246213] [2022-03-04 11:11:44,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:11:44,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:11:44,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:11:44,883 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 49 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:44,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:11:44,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71246213] [2022-03-04 11:11:44,884 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71246213] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:11:44,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1297148629] [2022-03-04 11:11:44,884 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:11:44,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:11:44,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:11:44,887 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) [2022-03-04 11:11:44,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:11:44,962 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:11:44,963 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:11:44,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-04 11:11:44,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:11:45,227 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:11:45,228 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:11:45,348 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:11:45,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1297148629] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:11:45,349 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:11:45,350 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11, 11] total 18 [2022-03-04 11:11:45,351 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090335256] [2022-03-04 11:11:45,351 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:11:45,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 11:11:45,352 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:11:45,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 11:11:45,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2022-03-04 11:11:45,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:45,356 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:11:45,357 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.9444444444444446) internal successors, (53), 18 states have internal predecessors, (53), 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) [2022-03-04 11:11:45,357 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:45,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:45,505 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 114 transitions and produced 108 states. [2022-03-04 11:11:45,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:45,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:11:45,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:11:45,723 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 [2022-03-04 11:11:45,724 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:11:45,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:11:45,724 INFO L85 PathProgramCache]: Analyzing trace with hash -1837964081, now seen corresponding path program 3 times [2022-03-04 11:11:45,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:11:45,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461421584] [2022-03-04 11:11:45,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:11:45,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:11:45,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:11:45,884 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 49 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:45,884 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:11:45,884 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461421584] [2022-03-04 11:11:45,892 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461421584] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:11:45,892 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782526495] [2022-03-04 11:11:45,892 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:11:45,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:11:45,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:11:45,896 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) [2022-03-04 11:11:45,897 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:11:45,950 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2022-03-04 11:11:45,951 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:11:45,952 INFO L263 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-04 11:11:45,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:11:46,226 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 49 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:46,226 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:11:46,375 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 49 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:46,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782526495] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:11:46,376 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:11:46,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 27 [2022-03-04 11:11:46,376 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024171304] [2022-03-04 11:11:46,376 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:11:46,377 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-03-04 11:11:46,377 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:11:46,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-03-04 11:11:46,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=516, Unknown=0, NotChecked=0, Total=702 [2022-03-04 11:11:46,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:46,378 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:11:46,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.814814814814815) internal successors, (76), 27 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:11:46,378 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:46,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:11:46,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:46,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 141 transitions and produced 135 states. [2022-03-04 11:11:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:11:46,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:11:46,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:11:46,803 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 [2022-03-04 11:11:46,804 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:11:46,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:11:46,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1034117769, now seen corresponding path program 4 times [2022-03-04 11:11:46,804 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:11:46,805 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34504988] [2022-03-04 11:11:46,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:11:46,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:11:46,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:11:48,381 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 20 proven. 78 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:48,381 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:11:48,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34504988] [2022-03-04 11:11:48,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34504988] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:11:48,382 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142190855] [2022-03-04 11:11:48,382 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:11:48,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:11:48,382 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:11:48,384 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) [2022-03-04 11:11:48,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:11:48,454 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:11:48,454 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:11:48,456 WARN L261 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 93 conjunts are in the unsatisfiable core [2022-03-04 11:11:48,459 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:11:50,161 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 21 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 23 [2022-03-04 11:11:50,271 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:50,271 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:11:52,676 INFO L353 Elim1Store]: treesize reduction 308, result has 58.5 percent of original size [2022-03-04 11:11:52,676 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 21 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 70 case distinctions, treesize of input 60 treesize of output 453 [2022-03-04 11:11:56,765 INFO L134 CoverageAnalysis]: Checked inductivity of 98 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:11:56,765 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142190855] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:11:56,766 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:11:56,766 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 32, 32] total 89 [2022-03-04 11:11:56,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704155061] [2022-03-04 11:11:56,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:11:56,767 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-03-04 11:11:56,767 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:11:56,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-03-04 11:11:56,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=410, Invalid=7422, Unknown=0, NotChecked=0, Total=7832 [2022-03-04 11:11:56,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:11:56,770 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:11:56,770 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 1.303370786516854) internal successors, (116), 89 states have internal predecessors, (116), 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) [2022-03-04 11:11:56,770 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:11:56,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:11:56,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:11:56,771 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:12:03,749 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 169 transitions and produced 165 states. [2022-03-04 11:12:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:12:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:12:03,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:12:03,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:12:03,774 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 11:12:03,967 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 [2022-03-04 11:12:03,968 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:12:03,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:12:03,968 INFO L85 PathProgramCache]: Analyzing trace with hash -341202287, now seen corresponding path program 5 times [2022-03-04 11:12:03,968 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:12:03,968 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056238047] [2022-03-04 11:12:03,969 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:12:03,969 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:12:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:12:04,187 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 64 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:04,188 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:12:04,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056238047] [2022-03-04 11:12:04,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056238047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:12:04,188 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [608761302] [2022-03-04 11:12:04,188 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:12:04,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:12:04,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:12:04,190 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) [2022-03-04 11:12:04,195 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:12:04,254 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2022-03-04 11:12:04,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:12:04,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 11:12:04,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:12:04,521 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 64 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:04,521 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:12:04,636 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 64 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:04,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [608761302] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:12:04,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:12:04,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 30 [2022-03-04 11:12:04,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022162196] [2022-03-04 11:12:04,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:12:04,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-03-04 11:12:04,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:12:04,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-03-04 11:12:04,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=219, Invalid=651, Unknown=0, NotChecked=0, Total=870 [2022-03-04 11:12:04,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:12:04,639 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:12:04,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.2666666666666666) internal successors, (68), 30 states have internal predecessors, (68), 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) [2022-03-04 11:12:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:12:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:12:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:12:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:12:04,639 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:12:04,940 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 181 transitions and produced 176 states. [2022-03-04 11:12:04,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:12:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:12:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:12:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:12:04,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:12:04,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 11:12:05,141 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 [2022-03-04 11:12:05,142 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:12:05,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:12:05,143 INFO L85 PathProgramCache]: Analyzing trace with hash -2142628463, now seen corresponding path program 6 times [2022-03-04 11:12:05,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:12:05,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2045573280] [2022-03-04 11:12:05,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:12:05,143 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:12:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:12:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 32 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:06,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:12:06,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2045573280] [2022-03-04 11:12:06,862 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2045573280] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:12:06,862 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894866210] [2022-03-04 11:12:06,862 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 11:12:06,862 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:12:06,862 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:12:06,864 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) [2022-03-04 11:12:06,865 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 11:12:06,910 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-03-04 11:12:06,911 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:12:06,913 WARN L261 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 117 conjunts are in the unsatisfiable core [2022-03-04 11:12:06,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:12:10,022 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,026 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,028 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,031 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,032 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,033 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,034 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,039 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,055 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,063 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,079 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,080 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,081 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,082 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,084 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,085 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,089 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,091 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,092 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:12:10,488 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:12:10,489 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 64 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 56 case distinctions, treesize of input 90 treesize of output 622 [2022-03-04 11:12:48,929 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:48,930 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:12:53,488 INFO L353 Elim1Store]: treesize reduction 18, result has 66.0 percent of original size [2022-03-04 11:12:53,488 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 21 treesize of output 44 [2022-03-04 11:12:53,562 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 0 proven. 162 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:12:53,562 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894866210] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:12:53,562 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:12:53,562 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 110 [2022-03-04 11:12:53,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716427830] [2022-03-04 11:12:53,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:12:53,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-03-04 11:12:53,563 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:12:53,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-03-04 11:12:53,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=695, Invalid=11295, Unknown=0, NotChecked=0, Total=11990 [2022-03-04 11:12:53,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:12:53,569 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:12:53,570 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 1.2181818181818183) internal successors, (134), 110 states have internal predecessors, (134), 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) [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:12:53,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:13:05,070 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 197 transitions and produced 191 states. [2022-03-04 11:13:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:13:05,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:13:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:13:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:13:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:13:05,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-04 11:13:05,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 11:13:05,272 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:13:05,272 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:13:05,273 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:13:05,273 INFO L85 PathProgramCache]: Analyzing trace with hash -1915577167, now seen corresponding path program 7 times [2022-03-04 11:13:05,273 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:13:05,273 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094944564] [2022-03-04 11:13:05,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:13:05,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:13:05,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:13:07,175 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 56 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:07,176 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:13:07,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094944564] [2022-03-04 11:13:07,176 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094944564] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:13:07,176 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1564242729] [2022-03-04 11:13:07,176 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 11:13:07,176 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:13:07,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:13:07,182 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) [2022-03-04 11:13:07,183 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 11:13:07,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:13:07,277 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 129 conjunts are in the unsatisfiable core [2022-03-04 11:13:07,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:13:09,977 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 45 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 0 case distinctions, treesize of input 85 treesize of output 45 [2022-03-04 11:13:10,093 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:10,093 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:13:15,950 INFO L353 Elim1Store]: treesize reduction 650, result has 57.8 percent of original size [2022-03-04 11:13:15,950 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 45 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 145 case distinctions, treesize of input 84 treesize of output 915 [2022-03-04 11:13:35,154 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 200 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:35,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1564242729] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:13:35,154 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:13:35,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 44, 44] total 125 [2022-03-04 11:13:35,154 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58035716] [2022-03-04 11:13:35,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:13:35,155 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 125 states [2022-03-04 11:13:35,155 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:13:35,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 125 interpolants. [2022-03-04 11:13:35,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=752, Invalid=14748, Unknown=0, NotChecked=0, Total=15500 [2022-03-04 11:13:35,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:13:35,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:13:35,158 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 125 states, 125 states have (on average 1.152) internal successors, (144), 125 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-04 11:13:35,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:13:47,040 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 217 transitions and produced 213 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:13:47,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-04 11:13:47,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-04 11:13:47,060 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 11:13:47,247 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:13:47,248 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:13:47,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:13:47,248 INFO L85 PathProgramCache]: Analyzing trace with hash 72753521, now seen corresponding path program 8 times [2022-03-04 11:13:47,248 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:13:47,248 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670606070] [2022-03-04 11:13:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:13:47,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:13:47,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:13:47,505 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 121 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:47,505 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:13:47,505 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670606070] [2022-03-04 11:13:47,505 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670606070] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:13:47,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368533770] [2022-03-04 11:13:47,506 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:13:47,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:13:47,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:13:47,507 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:13:47,507 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 11:13:47,550 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:13:47,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:13:47,551 INFO L263 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 26 conjunts are in the unsatisfiable core [2022-03-04 11:13:47,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:13:47,837 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 121 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:47,837 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:13:47,958 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 121 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:47,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [368533770] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:13:47,958 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:13:47,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 27, 27] total 39 [2022-03-04 11:13:47,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742993544] [2022-03-04 11:13:47,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:13:47,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-03-04 11:13:47,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:13:47,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-03-04 11:13:47,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1119, Unknown=0, NotChecked=0, Total=1482 [2022-03-04 11:13:47,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:13:47,960 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:13:47,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.2051282051282053) internal successors, (86), 39 states have internal predecessors, (86), 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) [2022-03-04 11:13:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:13:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:13:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:13:47,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:13:47,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:13:47,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-03-04 11:13:47,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-03-04 11:13:47,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:13:48,434 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 229 transitions and produced 224 states. [2022-03-04 11:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-03-04 11:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-03-04 11:13:48,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 11:13:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-03-04 11:13:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-03-04 11:13:48,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-03-04 11:13:48,461 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 11:13:48,650 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-03-04 11:13:48,650 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [thread1Err4INUSE_VIOLATION, thread1Err5INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr2INUSE_VIOLATION (and 3 more)] === [2022-03-04 11:13:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:13:48,651 INFO L85 PathProgramCache]: Analyzing trace with hash 121005553, now seen corresponding path program 9 times [2022-03-04 11:13:48,651 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:13:48,651 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862672462] [2022-03-04 11:13:48,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:13:48,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:13:48,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:13:51,454 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:13:51,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:13:51,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862672462] [2022-03-04 11:13:51,455 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862672462] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:13:51,455 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1832446764] [2022-03-04 11:13:51,455 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:13:51,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:13:51,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:13:51,457 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:13:51,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 11:13:51,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-03-04 11:13:51,512 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:13:51,514 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 153 conjunts are in the unsatisfiable core [2022-03-04 11:13:51,515 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:14:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,371 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,372 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,375 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,376 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,381 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,389 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,396 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,399 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,400 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,402 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,403 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,405 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,408 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,412 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,413 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,415 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,420 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,425 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,426 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,427 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,428 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,451 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,466 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,468 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,477 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 11:14:05,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 11:14:05,493 INFO L244 Elim1Store]: Index analysis took 136 ms [2022-03-04 11:14:06,496 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 11:14:06,496 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 60 disjoint index pairs (out of 276 index pairs), introduced 18 new quantified variables, introduced 165 case distinctions, treesize of input 190 treesize of output 1122 [2022-03-04 11:19:30,403 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 0 proven. 288 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:19:30,404 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 11:25:31,059 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 [2022-03-04 11:25:31,060 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 [2022-03-04 11:25:31,060 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:25:32,089 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 11:25:32,090 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-04 11:25:32,147 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-04 11:25:32,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-04 11:25:32,148 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. [2022-03-04 11:25:32,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4INUSE_VIOLATION (5 of 7 remaining) [2022-03-04 11:25:32,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5INUSE_VIOLATION (4 of 7 remaining) [2022-03-04 11:25:32,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-04 11:25:32,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-04 11:25:32,149 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION (1 of 7 remaining) [2022-03-04 11:25:32,150 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION (0 of 7 remaining) [2022-03-04 11:25:32,153 INFO L732 BasicCegarLoop]: Path program histogram: [9] [2022-03-04 11:25:32,155 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 11:25:32,155 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 11:25:32,156 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 11:25:32 BasicIcfg [2022-03-04 11:25:32,156 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 11:25:32,157 INFO L158 Benchmark]: Toolchain (without parser) took 828428.88ms. Allocated memory was 187.7MB in the beginning and 783.3MB in the end (delta: 595.6MB). Free memory was 144.7MB in the beginning and 607.0MB in the end (delta: -462.3MB). Peak memory consumption was 135.3MB. Max. memory is 8.0GB. [2022-03-04 11:25:32,157 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 187.7MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 11:25:32,157 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.28ms. Allocated memory is still 187.7MB. Free memory was 144.6MB in the beginning and 143.1MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 11:25:32,157 INFO L158 Benchmark]: Boogie Preprocessor took 16.53ms. Allocated memory is still 187.7MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 11:25:32,158 INFO L158 Benchmark]: RCFGBuilder took 193.47ms. Allocated memory is still 187.7MB. Free memory was 142.1MB in the beginning and 132.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 11:25:32,158 INFO L158 Benchmark]: TraceAbstraction took 828192.41ms. Allocated memory was 187.7MB in the beginning and 783.3MB in the end (delta: 595.6MB). Free memory was 131.6MB in the beginning and 607.0MB in the end (delta: -475.4MB). Peak memory consumption was 120.6MB. Max. memory is 8.0GB. [2022-03-04 11:25:32,183 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 0.12ms. Allocated memory is still 187.7MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.28ms. Allocated memory is still 187.7MB. Free memory was 144.6MB in the beginning and 143.1MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.53ms. Allocated memory is still 187.7MB. Free memory was 143.1MB in the beginning and 142.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 193.47ms. Allocated memory is still 187.7MB. Free memory was 142.1MB in the beginning and 132.1MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 828192.41ms. Allocated memory was 187.7MB in the beginning and 783.3MB in the end (delta: 595.6MB). Free memory was 131.6MB in the beginning and 607.0MB in the end (delta: -475.4MB). Peak memory consumption was 120.6MB. 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: 86]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 78]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 81]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 50]: 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 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - TimeoutResultAtElement [Line: 54]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 828.1s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 31.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 283, 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, 0.4s SatisfiabilityAnalysisTime, 90.3s InterpolantComputationTime, 734 NumberOfCodeBlocks, 734 NumberOfCodeBlocksAsserted, 42 NumberOfCheckSat, 1050 ConstructedInterpolants, 28 QuantifiedInterpolants, 20078 SizeOfPredicates, 82 NumberOfNonLiveVariables, 1183 ConjunctsInSsa, 409 ConjunctsInUnsatCore, 22 InterpolantComputations, 1 PerfectInterpolantSequences, 1238/3260 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