/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/parallel-sum-equiv.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 00:54:06,372 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 00:54:06,374 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 00:54:06,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 00:54:06,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 00:54:06,427 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 00:54:06,428 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 00:54:06,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 00:54:06,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 00:54:06,432 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 00:54:06,432 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 00:54:06,433 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 00:54:06,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 00:54:06,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 00:54:06,455 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 00:54:06,456 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 00:54:06,457 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 00:54:06,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 00:54:06,459 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 00:54:06,460 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 00:54:06,461 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 00:54:06,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 00:54:06,464 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 00:54:06,465 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 00:54:06,467 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 00:54:06,485 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-04 00:54:06,512 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 00:54:06,512 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 00:54:06,513 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 00:54:06,513 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 00:54:06,513 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 00:54:06,514 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 00:54:06,514 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 00:54:06,514 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 00:54:06,514 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 00:54:06,514 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 00:54:06,515 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 00:54:06,516 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 00:54:06,516 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:54:06,517 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 00:54:06,517 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 00:54:06,518 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 00:54:06,518 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 00:54:06,518 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-04 00:54:06,518 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 00:54:06,518 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 00:54:06,708 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 00:54:06,728 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 00:54:06,729 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 00:54:06,730 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 00:54:06,732 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 00:54:06,733 INFO L432 ainManager$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 00:54:06,733 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 00:54:06,754 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 00:54:06,755 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 00:54:06,756 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 00:54:06,756 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 00:54:06,756 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 00:54:06,764 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,769 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,774 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 00:54:06,775 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 00:54:06,776 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 00:54:06,776 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 00:54:06,776 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 00:54:06,783 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,783 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,784 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,784 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,786 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,788 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,789 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 00:54:06,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 00:54:06,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 00:54:06,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 00:54:06,791 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 12:54:06" (1/1) ... [2022-03-04 00:54:06,797 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 00:54:06,803 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:06,816 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 00:54:06,843 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 00:54:06,859 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 00:54:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 00:54:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 00:54:06,860 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 00:54:06,860 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 00:54:06,860 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 00:54:06,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 00:54:06,861 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 00:54:06,861 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 00:54:06,861 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 00:54:06,862 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 00:54:06,862 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 00:54:06,863 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 00:54:06,865 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 00:54:06,865 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 00:54:06,866 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 00:54:06,918 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 00:54:06,920 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 00:54:07,039 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 00:54:07,070 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 00:54:07,071 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-03-04 00:54:07,071 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread2EXIT is neither atomic block end nor error location. [2022-03-04 00:54:07,072 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread3EXIT is neither atomic block end nor error location. [2022-03-04 00:54:07,073 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread4EXIT is neither atomic block end nor error location. [2022-03-04 00:54:07,075 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 12:54:07 BoogieIcfgContainer [2022-03-04 00:54:07,076 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 00:54:07,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 00:54:07,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 00:54:07,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 00:54:07,082 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 12:54:06" (1/2) ... [2022-03-04 00:54:07,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@747d5ad7 and model type parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 12:54:07, skipping insertion in model container [2022-03-04 00:54:07,083 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 12:54:07" (2/2) ... [2022-03-04 00:54:07,085 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-sum-equiv.wvr.bpl [2022-03-04 00:54:07,094 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 00:54:07,094 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 00:54:07,094 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 00:54:07,094 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 00:54:07,170 INFO L148 ThreadInstanceAdder]: Constructed 10 joinOtherThreadTransitions. [2022-03-04 00:54:07,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 00:54:07,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:07,221 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 00:54:07,222 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 00:54:07,255 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 00:54:07,275 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-04 00:54:07,276 INFO L340 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2022-03-04 00:54:07,426 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 152 transitions and produced 123 states. [2022-03-04 00:54:07,428 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 00:54:07,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:54:07,436 INFO L85 PathProgramCache]: Analyzing trace with hash 486998124, now seen corresponding path program 1 times [2022-03-04 00:54:07,444 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:54:07,445 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619552023] [2022-03-04 00:54:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:07,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:54:07,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:07,722 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:07,722 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:54:07,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619552023] [2022-03-04 00:54:07,723 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619552023] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:54:07,723 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620946486] [2022-03-04 00:54:07,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:07,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:07,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:07,731 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 00:54:07,740 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 00:54:07,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:07,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 112 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-04 00:54:07,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:54:08,100 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:08,100 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:54:08,260 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 16 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:08,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620946486] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:54:08,261 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:54:08,261 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 22 [2022-03-04 00:54:08,264 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546233288] [2022-03-04 00:54:08,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:54:08,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-04 00:54:08,269 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:54:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-04 00:54:08,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=345, Unknown=0, NotChecked=0, Total=462 [2022-03-04 00:54:08,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:08,291 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:54:08,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.6818181818181817) internal successors, (59), 22 states have internal predecessors, (59), 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 00:54:08,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:08,717 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 133 transitions and produced 127 states. [2022-03-04 00:54:08,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:54:08,746 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 00:54:08,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 00:54:08,928 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 00:54:08,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:54:08,929 INFO L85 PathProgramCache]: Analyzing trace with hash -1581844943, now seen corresponding path program 1 times [2022-03-04 00:54:08,929 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:54:08,929 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68105127] [2022-03-04 00:54:08,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:08,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:54:09,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:10,242 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:10,242 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:54:10,242 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68105127] [2022-03-04 00:54:10,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68105127] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:54:10,243 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2050980510] [2022-03-04 00:54:10,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:10,243 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:10,243 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:10,248 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 00:54:10,249 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 00:54:10,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:10,296 WARN L261 TraceCheckSpWp]: Trace formula consists of 140 conjuncts, 81 conjunts are in the unsatisfiable core [2022-03-04 00:54:10,299 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:54:11,972 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 39 [2022-03-04 00:54:12,110 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:12,111 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:54:13,969 INFO L353 Elim1Store]: treesize reduction 222, result has 59.0 percent of original size [2022-03-04 00:54:13,969 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 61 treesize of output 344 [2022-03-04 00:54:16,255 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:16,255 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2050980510] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:54:16,255 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:54:16,256 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 28, 28] total 78 [2022-03-04 00:54:16,256 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139806005] [2022-03-04 00:54:16,257 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:54:16,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-04 00:54:16,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:54:16,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-04 00:54:16,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=223, Invalid=5783, Unknown=0, NotChecked=0, Total=6006 [2022-03-04 00:54:16,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:16,263 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:54:16,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 1.2307692307692308) internal successors, (96), 78 states have internal predecessors, (96), 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 00:54:16,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:54:16,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:19,402 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 212 transitions and produced 184 states. [2022-03-04 00:54:19,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:54:19,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 00:54:19,420 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-04 00:54:19,604 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:19,604 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 00:54:19,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:54:19,605 INFO L85 PathProgramCache]: Analyzing trace with hash -1017088726, now seen corresponding path program 2 times [2022-03-04 00:54:19,605 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:54:19,605 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216656290] [2022-03-04 00:54:19,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:19,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:54:19,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:19,800 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:19,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:54:19,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216656290] [2022-03-04 00:54:19,801 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216656290] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:54:19,801 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [281057892] [2022-03-04 00:54:19,801 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:54:19,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:19,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:19,803 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 00:54:19,818 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 00:54:19,859 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:54:19,860 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:54:19,861 INFO L263 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 00:54:19,863 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:54:20,079 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:20,080 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:54:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 137 backedges. 81 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:20,291 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [281057892] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:54:20,291 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:54:20,291 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 37 [2022-03-04 00:54:20,291 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405895744] [2022-03-04 00:54:20,291 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:54:20,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2022-03-04 00:54:20,292 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:54:20,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2022-03-04 00:54:20,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=323, Invalid=1009, Unknown=0, NotChecked=0, Total=1332 [2022-03-04 00:54:20,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:20,293 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:54:20,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.4864864864864864) internal successors, (92), 37 states have internal predecessors, (92), 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 00:54:20,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:54:20,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 00:54:20,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:54:20,776 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 213 transitions and produced 203 states. [2022-03-04 00:54:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:54:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 00:54:20,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 00:54:20,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 00:54:20,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:20,978 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 00:54:20,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:54:20,978 INFO L85 PathProgramCache]: Analyzing trace with hash 2081311953, now seen corresponding path program 2 times [2022-03-04 00:54:20,979 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:54:20,979 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [110731987] [2022-03-04 00:54:20,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:54:20,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:54:21,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:54:23,701 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 63 proven. 179 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:23,702 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:54:23,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [110731987] [2022-03-04 00:54:23,702 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [110731987] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:54:23,702 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823481802] [2022-03-04 00:54:23,702 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 00:54:23,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:54:23,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:54:23,704 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 00:54:23,705 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 00:54:23,761 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 00:54:23,762 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:54:23,764 WARN L261 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 142 conjunts are in the unsatisfiable core [2022-03-04 00:54:23,768 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:54:29,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,475 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,476 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,477 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,478 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,482 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,483 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,485 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,486 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,487 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,488 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,490 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,495 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,496 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,499 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,500 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,501 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,502 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,502 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,509 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,516 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,523 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,524 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,525 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,525 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:54:29,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,527 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:29,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 55 disjoint index pairs (out of 231 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 165 treesize of output 63 [2022-03-04 00:54:29,661 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:54:29,661 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 00:54:41,833 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,836 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,838 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,840 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,841 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,842 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,843 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,853 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,854 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,855 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,856 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,857 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,876 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,877 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,878 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,879 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,891 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,908 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,909 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,911 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,912 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,914 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,915 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:41,917 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:54:43,986 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 00:54:43,987 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 110 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 121 case distinctions, treesize of input 181 treesize of output 1242 [2022-03-04 00:55:48,336 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 0 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 00:55:48,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823481802] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 00:55:48,337 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 00:55:48,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 137 [2022-03-04 00:55:48,337 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1561347382] [2022-03-04 00:55:48,337 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 00:55:48,338 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 137 states [2022-03-04 00:55:48,338 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 00:55:48,339 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 137 interpolants. [2022-03-04 00:55:48,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=899, Invalid=17733, Unknown=0, NotChecked=0, Total=18632 [2022-03-04 00:55:48,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:55:48,345 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 00:55:48,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 137 states, 137 states have (on average 1.1094890510948905) internal successors, (152), 137 states have internal predecessors, (152), 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 00:55:48,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:55:48,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-03-04 00:55:48,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2022-03-04 00:55:48,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 00:55:58,461 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 229 transitions and produced 215 states. [2022-03-04 00:55:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-03-04 00:55:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-03-04 00:55:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-03-04 00:55:58,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 84 states. [2022-03-04 00:55:58,479 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 00:55:58,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:55:58,663 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 00:55:58,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 00:55:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 121005553, now seen corresponding path program 3 times [2022-03-04 00:55:58,663 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 00:55:58,663 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1447360559] [2022-03-04 00:55:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 00:55:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 00:55:58,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 00:56:01,740 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 00:56:01,740 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 00:56:01,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1447360559] [2022-03-04 00:56:01,740 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1447360559] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 00:56:01,741 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [337984612] [2022-03-04 00:56:01,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 00:56:01,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 00:56:01,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 00:56:01,748 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 00:56:01,752 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 00:56:01,808 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 13 check-sat command(s) [2022-03-04 00:56:01,808 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 00:56:01,811 WARN L261 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 153 conjunts are in the unsatisfiable core [2022-03-04 00:56:01,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 00:56:16,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,947 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,963 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:16,964 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,980 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,981 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,982 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,984 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,986 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:16,988 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,989 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,990 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,991 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,993 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,995 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:16,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,003 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,012 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,014 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,015 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:17,018 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,019 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,020 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,021 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:17,027 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,037 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:17,042 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 00:56:17,043 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,044 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,049 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,051 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,053 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,054 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,057 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 00:56:17,058 INFO L244 Elim1Store]: Index analysis took 136 ms [2022-03-04 00:56:18,096 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 00:56:18,096 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 170 treesize of output 1102 [2022-03-04 00:59:57,280 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 00:59:57,280 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 01:08:13,211 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 01:08:13,225 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 01:08:13,225 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 01:08:14,173 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (6 of 7 remaining) [2022-03-04 01:08:14,190 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 01:08:14,224 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 01:08:14,374 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 01:08:14,374 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 65 with TraceHistMax 12,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err4INUSE_VIOLATION (5 of 7 remaining) [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Err5INUSE_VIOLATION (4 of 7 remaining) [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (3 of 7 remaining) [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (2 of 7 remaining) [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err0INUSE_VIOLATION (1 of 7 remaining) [2022-03-04 01:08:14,376 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thread1Thread1of1ForFork0Err1INUSE_VIOLATION (0 of 7 remaining) [2022-03-04 01:08:14,380 INFO L732 BasicCegarLoop]: Path program histogram: [3, 2] [2022-03-04 01:08:14,382 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 01:08:14,382 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 01:08:14,396 INFO L202 PluginConnector]: Adding new model parallel-sum-equiv.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 01:08:14 BasicIcfg [2022-03-04 01:08:14,397 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 01:08:14,398 INFO L158 Benchmark]: Toolchain (without parser) took 847642.20ms. Allocated memory was 218.1MB in the beginning and 769.7MB in the end (delta: 551.6MB). Free memory was 178.3MB in the beginning and 503.0MB in the end (delta: -324.7MB). Peak memory consumption was 229.3MB. Max. memory is 8.0GB. [2022-03-04 01:08:14,398 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 218.1MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 01:08:14,398 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.49ms. Allocated memory is still 218.1MB. Free memory was 178.2MB in the beginning and 176.7MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 01:08:14,403 INFO L158 Benchmark]: Boogie Preprocessor took 13.50ms. Allocated memory is still 218.1MB. Free memory was 176.7MB in the beginning and 175.8MB in the end (delta: 915.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 01:08:14,404 INFO L158 Benchmark]: RCFGBuilder took 285.50ms. Allocated memory is still 218.1MB. Free memory was 175.6MB in the beginning and 165.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 01:08:14,404 INFO L158 Benchmark]: TraceAbstraction took 847317.45ms. Allocated memory was 218.1MB in the beginning and 769.7MB in the end (delta: 551.6MB). Free memory was 165.2MB in the beginning and 503.0MB in the end (delta: -337.8MB). Peak memory consumption was 214.7MB. Max. memory is 8.0GB. [2022-03-04 01:08:14,406 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 0.14ms. Allocated memory is still 218.1MB. Free memory is still 179.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.49ms. Allocated memory is still 218.1MB. Free memory was 178.2MB in the beginning and 176.7MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.50ms. Allocated memory is still 218.1MB. Free memory was 176.7MB in the beginning and 175.8MB in the end (delta: 915.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 285.50ms. Allocated memory is still 218.1MB. Free memory was 175.6MB in the beginning and 165.6MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 847317.45ms. Allocated memory was 218.1MB in the beginning and 769.7MB in the end (delta: 551.6MB). Free memory was 165.2MB in the beginning and 503.0MB in the end (delta: -337.8MB). Peak memory consumption was 214.7MB. 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - 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 PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 131 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances [2022-03-04 01:08:14,426 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process CFG has 9 procedures, 49 locations, 7 error locations. Started 1 CEGAR loops. OverallTime: 847.2s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 14.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 165, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 95.6s InterpolantComputationTime, 364 NumberOfCodeBlocks, 364 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 534 ConstructedInterpolants, 45 QuantifiedInterpolants, 17328 SizeOfPredicates, 53 NumberOfNonLiveVariables, 637 ConjunctsInSsa, 254 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 354/1443 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