/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 04:36:56,857 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 04:36:56,859 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 04:36:56,917 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 04:36:56,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 04:36:56,921 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 04:36:56,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 04:36:56,929 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 04:36:56,930 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 04:36:56,930 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 04:36:56,931 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 04:36:56,932 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 04:36:56,932 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 04:36:56,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 04:36:56,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 04:36:56,935 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 04:36:56,935 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 04:36:56,936 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 04:36:56,937 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 04:36:56,939 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 04:36:56,942 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 04:36:56,952 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 04:36:56,954 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 04:36:56,956 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 04:36:56,959 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 04:36:56,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 04:36:56,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 04:36:56,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 04:36:56,967 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.epf [2022-03-02 04:36:56,994 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 04:36:56,994 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 04:36:56,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 04:36:56,995 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 04:36:56,996 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 04:36:56,996 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 04:36:56,996 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 04:36:56,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 04:36:56,997 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 04:36:56,997 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 04:36:56,998 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 04:36:56,999 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 04:36:56,999 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 04:36:56,999 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 04:36:56,999 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 04:36:56,999 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 04:36:56,999 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 04:36:57,000 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 04:36:57,000 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:36:57,001 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 04:36:57,001 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 04:36:57,001 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 04:36:57,001 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 04:36:57,001 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 04:36:57,001 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 04:36:57,002 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 04:36:57,002 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 04:36:57,002 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 04:36:57,002 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-02 04:36:57,002 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-02 04:36:57,002 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 04:36:57,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 04:36:57,237 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 04:36:57,239 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 04:36:57,240 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 04:36:57,241 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 04:36:57,241 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl [2022-03-02 04:36:57,242 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2022-03-02 04:36:57,264 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 04:36:57,265 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 04:36:57,266 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 04:36:57,266 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 04:36:57,266 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 04:36:57,274 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,281 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,286 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 04:36:57,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 04:36:57,288 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 04:36:57,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 04:36:57,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 04:36:57,295 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,295 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,296 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,299 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,301 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 04:36:57,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 04:36:57,308 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 04:36:57,308 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 04:36:57,309 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/1) ... [2022-03-02 04:36:57,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 04:36:57,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:36:57,340 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) [2022-03-02 04:36:57,358 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 [2022-03-02 04:36:57,377 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 04:36:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 04:36:57,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 04:36:57,378 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 04:36:57,378 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 04:36:57,378 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 04:36:57,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 04:36:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 04:36:57,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 04:36:57,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 04:36:57,379 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 04:36:57,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 04:36:57,380 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 04:36:57,422 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 04:36:57,423 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 04:36:57,511 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 04:36:57,542 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 04:36:57,542 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 04:36:57,544 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:36:57 BoogieIcfgContainer [2022-03-02 04:36:57,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 04:36:57,545 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 04:36:57,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 04:36:57,548 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 04:36:57,548 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 04:36:57" (1/2) ... [2022-03-02 04:36:57,549 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6f134e5 and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 04:36:57, skipping insertion in model container [2022-03-02 04:36:57,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 04:36:57" (2/2) ... [2022-03-02 04:36:57,550 INFO L111 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2022-03-02 04:36:57,569 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 04:36:57,570 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 04:36:57,570 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 04:36:57,570 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 04:36:57,605 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-02 04:36:57,638 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 04:36:57,639 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:36:57,643 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) [2022-03-02 04:36:57,666 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 [2022-03-02 04:36:57,708 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 04:36:57,714 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=true [2022-03-02 04:36:57,714 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-02 04:36:57,887 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1437 transitions and produced 1133 states. [2022-03-02 04:36:57,890 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:36:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:36:57,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1283135019, now seen corresponding path program 1 times [2022-03-02 04:36:57,904 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:36:57,905 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652003185] [2022-03-02 04:36:57,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:36:57,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:37:01,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:37:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 0 proven. 9464 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-03-02 04:37:03,768 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:37:03,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652003185] [2022-03-02 04:37:03,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1652003185] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:37:03,769 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [176685763] [2022-03-02 04:37:03,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:37:03,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:37:03,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:37:03,771 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) [2022-03-02 04:37:03,772 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 04:37:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:37:04,007 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-02 04:37:04,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:37:09,137 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,138 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,139 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,140 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,141 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,142 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,143 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,144 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,145 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,146 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,148 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,149 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,158 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 04:37:09,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,164 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,167 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:09,175 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-03-02 04:37:09,900 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-02 04:37:09,932 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 2 proven. 9456 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-03-02 04:37:09,932 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:37:10,690 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:37:10,691 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-02 04:37:15,137 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-02 04:37:15,137 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 290 treesize of output 306 [2022-03-02 04:37:15,158 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-02 04:37:18,493 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 8 proven. 9450 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-03-02 04:37:18,493 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [176685763] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:37:18,494 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:37:18,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 79 [2022-03-02 04:37:18,496 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455089752] [2022-03-02 04:37:18,497 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:37:18,503 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-03-02 04:37:18,503 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:37:18,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-03-02 04:37:18,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=6025, Unknown=0, NotChecked=0, Total=6320 [2022-03-02 04:37:18,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:37:18,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:37:18,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 80 states, 80 states have (on average 3.7) internal successors, (296), 79 states have internal predecessors, (296), 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) [2022-03-02 04:37:18,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:37:21,884 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1650 transitions and produced 1294 states. [2022-03-02 04:37:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:37:21,910 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 04:37:22,103 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 [2022-03-02 04:37:22,104 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:37:22,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:37:22,105 INFO L85 PathProgramCache]: Analyzing trace with hash 1476071990, now seen corresponding path program 2 times [2022-03-02 04:37:22,105 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:37:22,105 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921877465] [2022-03-02 04:37:22,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:37:22,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:37:24,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:37:26,230 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 0 proven. 12629 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-03-02 04:37:26,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:37:26,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921877465] [2022-03-02 04:37:26,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921877465] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:37:26,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [189642976] [2022-03-02 04:37:26,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 04:37:26,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:37:26,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:37:26,233 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) [2022-03-02 04:37:26,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 04:37:26,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 04:37:26,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:37:26,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-02 04:37:26,516 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:37:30,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,731 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,733 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,734 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,735 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,736 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,745 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 04:37:30,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:30,749 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-03-02 04:37:31,462 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-02 04:37:31,483 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 2 proven. 12607 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-03-02 04:37:31,484 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:37:32,170 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:37:32,171 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-02 04:37:35,150 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-03-02 04:37:35,305 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-02 04:37:35,305 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 282 treesize of output 300 [2022-03-02 04:37:39,612 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 14 proven. 12595 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-03-02 04:37:39,612 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [189642976] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:37:39,612 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:37:39,613 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38, 38] total 78 [2022-03-02 04:37:39,613 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076052388] [2022-03-02 04:37:39,613 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:37:39,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-02 04:37:39,615 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:37:39,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-02 04:37:39,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=5855, Unknown=0, NotChecked=0, Total=6162 [2022-03-02 04:37:39,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:37:39,618 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:37:39,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.721518987341772) internal successors, (294), 78 states have internal predecessors, (294), 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) [2022-03-02 04:37:39,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:37:39,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:37:42,610 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1702 transitions and produced 1330 states. [2022-03-02 04:37:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:37:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:37:42,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 04:37:42,811 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 [2022-03-02 04:37:42,811 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:37:42,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:37:42,812 INFO L85 PathProgramCache]: Analyzing trace with hash 779500249, now seen corresponding path program 3 times [2022-03-02 04:37:42,812 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:37:42,812 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1451569734] [2022-03-02 04:37:42,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:37:42,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:37:44,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:37:46,214 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 0 proven. 13302 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2022-03-02 04:37:46,214 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:37:46,214 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1451569734] [2022-03-02 04:37:46,215 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1451569734] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:37:46,215 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [557565377] [2022-03-02 04:37:46,215 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 04:37:46,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:37:46,215 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:37:46,217 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) [2022-03-02 04:37:46,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 04:37:47,013 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 67 check-sat command(s) [2022-03-02 04:37:47,013 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:37:47,025 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 137 conjunts are in the unsatisfiable core [2022-03-02 04:37:47,033 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:37:50,854 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,855 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,856 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,857 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,859 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,860 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,861 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,862 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,863 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,867 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,868 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,880 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,882 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 04:37:50,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:37:50,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 31 [2022-03-02 04:37:51,624 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-02 04:37:51,641 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 2 proven. 13278 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-03-02 04:37:51,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:37:52,345 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:37:52,345 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-02 04:37:54,844 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-03-02 04:37:55,002 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-02 04:37:55,003 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 241 treesize of output 279 [2022-03-02 04:37:57,681 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 28 proven. 13252 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-03-02 04:37:57,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [557565377] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:37:57,682 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:37:57,682 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 78 [2022-03-02 04:37:57,682 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712627360] [2022-03-02 04:37:57,682 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:37:57,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-02 04:37:57,683 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:37:57,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-02 04:37:57,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=5834, Unknown=0, NotChecked=0, Total=6162 [2022-03-02 04:37:57,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:37:57,685 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:37:57,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 3.6835443037974684) internal successors, (291), 78 states have internal predecessors, (291), 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) [2022-03-02 04:37:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:37:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:37:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:38:00,353 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1754 transitions and produced 1360 states. [2022-03-02 04:38:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:38:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:38:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-02 04:38:00,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 04:38:00,559 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 [2022-03-02 04:38:00,560 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:38:00,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:38:00,560 INFO L85 PathProgramCache]: Analyzing trace with hash -99098674, now seen corresponding path program 4 times [2022-03-02 04:38:00,560 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:38:00,560 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678107215] [2022-03-02 04:38:00,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:38:00,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:38:02,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:38:03,366 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 0 proven. 14096 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-02 04:38:03,366 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:38:03,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678107215] [2022-03-02 04:38:03,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678107215] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:38:03,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1974441510] [2022-03-02 04:38:03,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 04:38:03,367 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:38:03,367 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:38:03,368 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) [2022-03-02 04:38:03,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 04:38:03,587 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 04:38:03,587 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:38:03,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-02 04:38:03,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:38:07,506 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,508 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,509 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,510 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,511 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,512 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,513 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,514 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,515 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,517 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,518 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,519 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 04:38:07,520 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,529 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,530 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,532 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,534 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:07,536 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 36 disjoint index pairs (out of 45 index pairs), introduced 9 new quantified variables, introduced 0 case distinctions, treesize of input 69 treesize of output 31 [2022-03-02 04:38:08,246 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-02 04:38:08,261 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 1 proven. 14095 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-02 04:38:08,261 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:38:08,939 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:38:08,940 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-02 04:38:11,730 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-02 04:38:11,731 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 342 treesize of output 332 [2022-03-02 04:38:11,740 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-02 04:38:15,426 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 50 proven. 14046 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-02 04:38:15,427 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1974441510] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:38:15,427 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:38:15,427 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 77 [2022-03-02 04:38:15,429 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366863191] [2022-03-02 04:38:15,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:38:15,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-02 04:38:15,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:38:15,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-02 04:38:15,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=5676, Unknown=0, NotChecked=0, Total=6006 [2022-03-02 04:38:15,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:38:15,437 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:38:15,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 3.858974358974359) internal successors, (301), 77 states have internal predecessors, (301), 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) [2022-03-02 04:38:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:38:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:38:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-02 04:38:15,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:38:18,594 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1807 transitions and produced 1361 states. [2022-03-02 04:38:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:38:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:38:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-02 04:38:18,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-02 04:38:18,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 04:38:18,795 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 [2022-03-02 04:38:18,795 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:38:18,796 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:38:18,796 INFO L85 PathProgramCache]: Analyzing trace with hash 632818543, now seen corresponding path program 5 times [2022-03-02 04:38:18,796 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:38:18,796 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753628990] [2022-03-02 04:38:18,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:38:18,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:38:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:38:22,605 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 0 proven. 14810 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-03-02 04:38:22,605 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:38:22,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753628990] [2022-03-02 04:38:22,605 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753628990] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:38:22,605 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625510032] [2022-03-02 04:38:22,605 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 04:38:22,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:38:22,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:38:22,607 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) [2022-03-02 04:38:22,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 04:38:24,246 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 74 check-sat command(s) [2022-03-02 04:38:24,247 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:38:24,260 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-02 04:38:24,268 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:38:32,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,587 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,591 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,592 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,593 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,597 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,598 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,599 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,600 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,601 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,602 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,603 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,604 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,605 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,606 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,607 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,608 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,608 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-02 04:38:32,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,609 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,610 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,611 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,612 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,613 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,614 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,616 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,617 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,618 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,619 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,620 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,621 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-02 04:38:32,644 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 78 disjoint index pairs (out of 91 index pairs), introduced 13 new quantified variables, introduced 0 case distinctions, treesize of input 97 treesize of output 43 [2022-03-02 04:38:33,347 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-02 04:38:33,364 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 2 proven. 14802 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-03-02 04:38:33,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 04:38:34,018 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-02 04:38:34,018 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-02 04:38:40,287 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 61 [2022-03-02 04:38:40,652 INFO L353 Elim1Store]: treesize reduction 902, result has 13.4 percent of original size [2022-03-02 04:38:40,653 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 601 treesize of output 515 [2022-03-02 04:38:51,173 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 68 proven. 14736 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-03-02 04:38:51,174 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625510032] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 04:38:51,174 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 04:38:51,175 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54, 54] total 108 [2022-03-02 04:38:51,175 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602364974] [2022-03-02 04:38:51,175 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 04:38:51,176 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-03-02 04:38:51,176 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 04:38:51,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-03-02 04:38:51,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=11261, Unknown=0, NotChecked=0, Total=11772 [2022-03-02 04:38:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:38:51,180 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 04:38:51,180 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 109 states, 109 states have (on average 3.853211009174312) internal successors, (420), 108 states have internal predecessors, (420), 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) [2022-03-02 04:38:51,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:38:51,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:38:51,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-02 04:38:51,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-02 04:38:51,181 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 04:38:55,676 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2028 transitions and produced 1526 states. [2022-03-02 04:38:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-02 04:38:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-02 04:38:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-02 04:38:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-02 04:38:55,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-02 04:38:55,697 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 04:38:55,877 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 [2022-03-02 04:38:55,877 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-02 04:38:55,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 04:38:55,878 INFO L85 PathProgramCache]: Analyzing trace with hash 168630964, now seen corresponding path program 6 times [2022-03-02 04:38:55,878 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 04:38:55,878 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113267453] [2022-03-02 04:38:55,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 04:38:55,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 04:38:58,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 04:39:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 0 proven. 18749 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked. [2022-03-02 04:39:00,486 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 04:39:00,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113267453] [2022-03-02 04:39:00,486 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2113267453] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 04:39:00,486 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [910502113] [2022-03-02 04:39:00,486 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 04:39:00,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:39:00,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 04:39:00,488 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) [2022-03-02 04:39:00,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 04:39:02,001 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 81 check-sat command(s) [2022-03-02 04:39:02,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 04:39:02,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 188 conjunts are in the unsatisfiable core [2022-03-02 04:39:02,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 04:42:21,308 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-02 04:42:21,308 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 882 treesize of output 872 [2022-03-02 04:44:26,666 INFO L353 Elim1Store]: treesize reduction 31392, result has 0.0 percent of original size [2022-03-02 04:44:26,667 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 73 select indices, 73 select index equivalence classes, 0 disjoint index pairs (out of 2628 index pairs), introduced 73 new quantified variables, introduced 2628 case distinctions, treesize of input 515 treesize of output 223 [2022-03-02 04:44:27,399 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 1124 proven. 19116 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-02 04:44:27,400 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-02 04:49:51,893 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-02 04:49:51,895 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 04:49:51,903 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 04:49:51,926 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 04:49:51,926 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 04:49:52,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 04:49:52,112 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 31 xjuncts wrt. a ∧-2-2-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. [2022-03-02 04:49:52,113 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-02 04:49:52,113 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-02 04:49:52,114 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-02 04:49:52,119 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-02 04:49:52,121 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 04:49:52,121 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 04:49:52,123 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 04:49:52 BasicIcfg [2022-03-02 04:49:52,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 04:49:52,123 INFO L158 Benchmark]: Toolchain (without parser) took 774858.27ms. Allocated memory was 188.7MB in the beginning and 814.7MB in the end (delta: 626.0MB). Free memory was 152.7MB in the beginning and 399.3MB in the end (delta: -246.6MB). Peak memory consumption was 544.9MB. Max. memory is 8.0GB. [2022-03-02 04:49:52,123 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 153.9MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 04:49:52,123 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.76ms. Allocated memory is still 188.7MB. Free memory was 152.6MB in the beginning and 151.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 04:49:52,124 INFO L158 Benchmark]: Boogie Preprocessor took 19.09ms. Allocated memory is still 188.7MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 04:49:52,124 INFO L158 Benchmark]: RCFGBuilder took 235.75ms. Allocated memory is still 188.7MB. Free memory was 150.0MB in the beginning and 139.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 04:49:52,126 INFO L158 Benchmark]: TraceAbstraction took 774577.23ms. Allocated memory was 188.7MB in the beginning and 814.7MB in the end (delta: 626.0MB). Free memory was 138.5MB in the beginning and 399.3MB in the end (delta: -260.8MB). Peak memory consumption was 529.2MB. Max. memory is 8.0GB. [2022-03-02 04:49:52,129 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 0.13ms. Allocated memory is still 188.7MB. Free memory was 154.0MB in the beginning and 153.9MB in the end (delta: 47.5kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.76ms. Allocated memory is still 188.7MB. Free memory was 152.6MB in the beginning and 151.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 19.09ms. Allocated memory is still 188.7MB. Free memory was 151.1MB in the beginning and 150.1MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 235.75ms. Allocated memory is still 188.7MB. Free memory was 150.0MB in the beginning and 139.0MB in the end (delta: 11.0MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 774577.23ms. Allocated memory was 188.7MB in the beginning and 814.7MB in the end (delta: 626.0MB). Free memory was 138.5MB in the beginning and 399.3MB in the end (delta: -260.8MB). Peak memory consumption was 529.2MB. 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: 102]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 31 xjuncts wrt. a ∧-2-2-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. - TimeoutResultAtElement [Line: 95]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 31 xjuncts wrt. a ∧-2-2-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. - TimeoutResultAtElement [Line: 95]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 31 xjuncts wrt. a ∧-2-2-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. - TimeoutResultAtElement [Line: 96]: 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 572 with TraceHistMax 115,while TraceCheckSpWp was constructing backward predicates,while PolyPacSimplificationTermWalker was simplifying a ∨-2-2-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 31 xjuncts wrt. a ∧-2-2-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 774.5s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 16.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 181, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 14.3s SatisfiabilityAnalysisTime, 85.1s InterpolantComputationTime, 4748 NumberOfCodeBlocks, 4748 NumberOfCodeBlocksAsserted, 150 NumberOfCheckSat, 7107 ConstructedInterpolants, 312 QuantifiedInterpolants, 112821 SizeOfPredicates, 65 NumberOfNonLiveVariables, 4697 ConjunctsInSsa, 433 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 21057/213675 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