/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-c7b2d19 [2022-03-16 11:31:58,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 11:31:58,407 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 11:31:58,446 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 11:31:58,447 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 11:31:58,449 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 11:31:58,451 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 11:31:58,455 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 11:31:58,457 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 11:31:58,457 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 11:31:58,459 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 11:31:58,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 11:31:58,461 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 11:31:58,465 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 11:31:58,466 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 11:31:58,467 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 11:31:58,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 11:31:58,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 11:31:58,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 11:31:58,470 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 11:31:58,471 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 11:31:58,475 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 11:31:58,477 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 11:31:58,478 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 11:31:58,487 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 11:31:58,493 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 11:31:58,493 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 11:31:58,494 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 11:31:58,497 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 [2022-03-16 11:31:58,533 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 11:31:58,534 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 11:31:58,534 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 11:31:58,534 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 11:31:58,535 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 11:31:58,535 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 11:31:58,535 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 11:31:58,535 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 11:31:58,536 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 11:31:58,536 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 11:31:58,536 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 11:31:58,537 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 11:31:58,538 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:31:58,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 11:31:58,538 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 11:31:58,539 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 11:31:58,540 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 11:31:58,540 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 11:31:58,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 11:31:58,761 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 11:31:58,787 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 11:31:58,789 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 11:31:58,790 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 11:31:58,791 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 11:31:58,791 INFO L432 ainManager$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 [2022-03-16 11:31:58,792 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2022-03-16 11:31:58,825 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 11:31:58,826 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 11:31:58,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 11:31:58,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 11:31:58,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 11:31:58,840 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 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,846 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 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,858 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 11:31:58,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 11:31:58,861 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 11:31:58,861 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 11:31:58,861 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 11:31:58,868 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,868 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,879 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,880 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,883 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,887 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 11:31:58,888 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 11:31:58,888 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 11:31:58,888 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 11:31:58,894 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/1) ... [2022-03-16 11:31:58,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:31:58,913 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:31:58,932 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-16 11:31:58,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-16 11:31:58,961 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 11:31:58,961 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 11:31:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 11:31:58,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 11:31:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 11:31:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 11:31:58,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 11:31:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 11:31:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 11:31:58,962 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 11:31:58,962 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 11:31:58,962 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 11:31:58,963 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 11:31:59,010 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 11:31:59,012 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 11:31:59,106 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 11:31:59,138 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 11:31:59,138 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 11:31:59,140 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:31:59 BoogieIcfgContainer [2022-03-16 11:31:59,140 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 11:31:59,142 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 11:31:59,142 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 11:31:59,145 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 11:31:59,145 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:31:58" (1/2) ... [2022-03-16 11:31:59,146 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2948d7aa and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:31:59, skipping insertion in model container [2022-03-16 11:31:59,146 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:31:59" (2/2) ... [2022-03-16 11:31:59,147 INFO L111 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2022-03-16 11:31:59,151 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 11:31:59,151 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 11:31:59,152 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 11:31:59,152 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 11:31:59,188 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 11:31:59,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 11:31:59,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:31:59,291 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-16 11:31:59,296 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-16 11:31:59,321 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 11:31:59,337 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 [2022-03-16 11:31:59,338 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 11:31:59,505 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1437 transitions and produced 1133 states. [2022-03-16 11:31:59,508 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:31:59,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:31:59,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1283135019, now seen corresponding path program 1 times [2022-03-16 11:31:59,520 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:31:59,521 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067131390] [2022-03-16 11:31:59,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:31:59,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:32:02,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:32:04,909 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 0 proven. 9464 refuted. 0 times theorem prover too weak. 981 trivial. 0 not checked. [2022-03-16 11:32:04,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:32:04,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2067131390] [2022-03-16 11:32:04,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2067131390] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:32:04,911 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [931937870] [2022-03-16 11:32:04,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:32:04,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:32:04,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:32:04,919 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:32:04,920 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 11:32:05,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:32:05,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 819 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-16 11:32:05,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:32:10,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,313 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 11:32:10,314 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:10,332 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 [2022-03-16 11:32:11,040 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 [2022-03-16 11:32:11,065 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 2 proven. 9456 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-03-16 11:32:11,065 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:32:11,841 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 11:32:11,843 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 [2022-03-16 11:32:16,248 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-16 11:32:16,249 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 [2022-03-16 11:32:16,261 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 [2022-03-16 11:32:19,607 INFO L134 CoverageAnalysis]: Checked inductivity of 10445 backedges. 8 proven. 9450 refuted. 0 times theorem prover too weak. 987 trivial. 0 not checked. [2022-03-16 11:32:19,607 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [931937870] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:32:19,607 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:32:19,608 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 79 [2022-03-16 11:32:19,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [471144998] [2022-03-16 11:32:19,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:32:19,616 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 80 states [2022-03-16 11:32:19,616 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:32:19,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 80 interpolants. [2022-03-16 11:32:19,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=6025, Unknown=0, NotChecked=0, Total=6320 [2022-03-16 11:32:19,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:32:19,641 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:32:19,647 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) [2022-03-16 11:32:19,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:32:22,940 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1650 transitions and produced 1294 states. [2022-03-16 11:32:22,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:32:22,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 11:32:23,155 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 [2022-03-16 11:32:23,156 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:32:23,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:32:23,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1476071990, now seen corresponding path program 2 times [2022-03-16 11:32:23,157 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:32:23,157 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985177984] [2022-03-16 11:32:23,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:32:23,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:32:25,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:32:27,304 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 0 proven. 12629 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2022-03-16 11:32:27,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:32:27,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985177984] [2022-03-16 11:32:27,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985177984] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:32:27,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [25361414] [2022-03-16 11:32:27,305 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:32:27,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:32:27,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:32:27,307 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:32:27,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 11:32:27,527 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:32:27,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:32:27,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-16 11:32:27,555 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:32:31,622 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,623 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,624 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,625 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,626 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,627 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,628 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,629 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,630 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,631 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,635 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,639 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,642 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,643 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,644 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,645 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,646 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,649 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 11:32:31,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,652 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:31,653 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 [2022-03-16 11:32:32,351 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 [2022-03-16 11:32:32,376 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 2 proven. 12607 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-03-16 11:32:32,376 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:32:33,055 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 11:32:33,056 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 [2022-03-16 11:32:35,983 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 [2022-03-16 11:32:36,130 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-16 11:32:36,131 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 [2022-03-16 11:32:40,299 INFO L134 CoverageAnalysis]: Checked inductivity of 14179 backedges. 14 proven. 12595 refuted. 0 times theorem prover too weak. 1570 trivial. 0 not checked. [2022-03-16 11:32:40,299 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [25361414] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:32:40,300 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:32:40,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [39, 38, 38] total 78 [2022-03-16 11:32:40,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1422581015] [2022-03-16 11:32:40,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:32:40,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-16 11:32:40,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:32:40,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-16 11:32:40,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=5855, Unknown=0, NotChecked=0, Total=6162 [2022-03-16 11:32:40,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:32:40,305 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:32:40,305 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) [2022-03-16 11:32:40,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:32:40,305 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:32:43,448 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1702 transitions and produced 1330 states. [2022-03-16 11:32:43,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:32:43,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:32:43,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 11:32:43,649 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 [2022-03-16 11:32:43,649 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:32:43,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:32:43,650 INFO L85 PathProgramCache]: Analyzing trace with hash 779500249, now seen corresponding path program 3 times [2022-03-16 11:32:43,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:32:43,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141177234] [2022-03-16 11:32:43,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:32:43,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:32:45,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:32:47,008 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 0 proven. 13302 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2022-03-16 11:32:47,008 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:32:47,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141177234] [2022-03-16 11:32:47,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141177234] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:32:47,009 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [621678651] [2022-03-16 11:32:47,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:32:47,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:32:47,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:32:47,010 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:32:47,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 11:32:47,826 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 67 check-sat command(s) [2022-03-16 11:32:47,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:32:47,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 955 conjuncts, 137 conjunts are in the unsatisfiable core [2022-03-16 11:32:47,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:32:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,697 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,698 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,699 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,703 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 11:32:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,706 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:32:51,707 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 [2022-03-16 11:32:52,420 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 [2022-03-16 11:32:52,437 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 2 proven. 13278 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-03-16 11:32:52,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:32:53,162 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 11:32:53,163 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 [2022-03-16 11:32:55,641 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 [2022-03-16 11:32:55,793 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-16 11:32:55,794 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 [2022-03-16 11:32:58,528 INFO L134 CoverageAnalysis]: Checked inductivity of 14985 backedges. 28 proven. 13252 refuted. 0 times theorem prover too weak. 1705 trivial. 0 not checked. [2022-03-16 11:32:58,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [621678651] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:32:58,529 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:32:58,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 78 [2022-03-16 11:32:58,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850518622] [2022-03-16 11:32:58,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:32:58,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-16 11:32:58,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:32:58,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-16 11:32:58,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=328, Invalid=5834, Unknown=0, NotChecked=0, Total=6162 [2022-03-16 11:32:58,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:32:58,533 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:32:58,533 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) [2022-03-16 11:32:58,533 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:32:58,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:32:58,534 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:01,193 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1754 transitions and produced 1360 states. [2022-03-16 11:33:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:33:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:33:01,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:33:01,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 11:33:01,407 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 [2022-03-16 11:33:01,408 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:33:01,408 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:33:01,408 INFO L85 PathProgramCache]: Analyzing trace with hash -99098674, now seen corresponding path program 4 times [2022-03-16 11:33:01,408 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:33:01,408 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561028120] [2022-03-16 11:33:01,408 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:33:01,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:33:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:33:04,168 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 0 proven. 14096 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-16 11:33:04,169 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:33:04,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561028120] [2022-03-16 11:33:04,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561028120] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:33:04,169 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1018631079] [2022-03-16 11:33:04,169 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 11:33:04,169 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:33:04,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:33:04,170 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 11:33:04,171 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 11:33:04,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 11:33:04,388 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:33:04,400 INFO L263 TraceCheckSpWp]: Trace formula consists of 974 conjuncts, 67 conjunts are in the unsatisfiable core [2022-03-16 11:33:04,407 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:33:08,334 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,336 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,338 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,347 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 11:33:08,347 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,348 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,349 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,352 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,353 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,354 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,355 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,356 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,358 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,359 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:08,360 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 [2022-03-16 11:33:09,048 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 [2022-03-16 11:33:09,063 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 1 proven. 14095 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-16 11:33:09,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:33:09,735 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 11:33:09,735 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 [2022-03-16 11:33:12,540 INFO L353 Elim1Store]: treesize reduction 406, result has 19.6 percent of original size [2022-03-16 11:33:12,541 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 [2022-03-16 11:33:12,549 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 [2022-03-16 11:33:16,445 INFO L134 CoverageAnalysis]: Checked inductivity of 15814 backedges. 50 proven. 14046 refuted. 0 times theorem prover too weak. 1718 trivial. 0 not checked. [2022-03-16 11:33:16,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1018631079] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:33:16,446 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:33:16,446 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [41, 39, 39] total 77 [2022-03-16 11:33:16,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595604147] [2022-03-16 11:33:16,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:33:16,447 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-03-16 11:33:16,447 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:33:16,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-03-16 11:33:16,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=5676, Unknown=0, NotChecked=0, Total=6006 [2022-03-16 11:33:16,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:16,449 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:33:16,450 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) [2022-03-16 11:33:16,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:33:16,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:33:16,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:33:16,450 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:19,501 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1807 transitions and produced 1361 states. [2022-03-16 11:33:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:33:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:33:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:33:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:33:19,519 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 11:33:19,702 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 [2022-03-16 11:33:19,702 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:33:19,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:33:19,703 INFO L85 PathProgramCache]: Analyzing trace with hash 632818543, now seen corresponding path program 5 times [2022-03-16 11:33:19,703 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:33:19,703 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [390901918] [2022-03-16 11:33:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:33:19,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:33:21,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:33:23,283 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 0 proven. 14810 refuted. 0 times theorem prover too weak. 992 trivial. 0 not checked. [2022-03-16 11:33:23,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:33:23,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [390901918] [2022-03-16 11:33:23,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [390901918] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:33:23,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777630100] [2022-03-16 11:33:23,283 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:33:23,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:33:23,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:33:23,290 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) [2022-03-16 11:33:23,290 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 11:33:24,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 74 check-sat command(s) [2022-03-16 11:33:24,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:33:24,970 INFO L263 TraceCheckSpWp]: Trace formula consists of 1013 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-16 11:33:24,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:33:33,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,273 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,283 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,285 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,286 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,287 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,288 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,289 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,290 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,291 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,292 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,293 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,294 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,296 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,297 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,298 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,298 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 11:33:33,299 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,300 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,301 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,302 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,304 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,305 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,307 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,308 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,309 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,310 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,311 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,315 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,316 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,318 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,319 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,320 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,321 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,322 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,323 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,324 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,326 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,327 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,328 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,329 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,330 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 11:33:33,332 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 [2022-03-16 11:33:34,023 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 [2022-03-16 11:33:34,039 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 2 proven. 14802 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-03-16 11:33:34,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:33:34,671 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 11:33:34,672 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 [2022-03-16 11:33:40,954 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 [2022-03-16 11:33:41,317 INFO L353 Elim1Store]: treesize reduction 902, result has 13.4 percent of original size [2022-03-16 11:33:41,318 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 [2022-03-16 11:33:52,532 INFO L134 CoverageAnalysis]: Checked inductivity of 15802 backedges. 68 proven. 14736 refuted. 0 times theorem prover too weak. 998 trivial. 0 not checked. [2022-03-16 11:33:52,532 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777630100] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:33:52,532 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:33:52,532 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 54, 54] total 108 [2022-03-16 11:33:52,532 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473321869] [2022-03-16 11:33:52,533 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:33:52,534 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 109 states [2022-03-16 11:33:52,534 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:33:52,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 109 interpolants. [2022-03-16 11:33:52,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=511, Invalid=11261, Unknown=0, NotChecked=0, Total=11772 [2022-03-16 11:33:52,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:52,537 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:33:52,537 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) [2022-03-16 11:33:52,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:33:52,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:33:52,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:33:52,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:33:52,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:57,003 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2028 transitions and produced 1526 states. [2022-03-16 11:33:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-03-16 11:33:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-03-16 11:33:57,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:33:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-16 11:33:57,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-03-16 11:33:57,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 11:33:57,204 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 [2022-03-16 11:33:57,205 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:33:57,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:33:57,205 INFO L85 PathProgramCache]: Analyzing trace with hash 168630964, now seen corresponding path program 6 times [2022-03-16 11:33:57,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:33:57,205 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620992568] [2022-03-16 11:33:57,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:33:57,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:33:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:34:01,560 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 0 proven. 18749 refuted. 0 times theorem prover too weak. 1561 trivial. 0 not checked. [2022-03-16 11:34:01,560 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:34:01,560 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620992568] [2022-03-16 11:34:01,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [620992568] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:34:01,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021520136] [2022-03-16 11:34:01,561 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:34:01,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:34:01,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:34:01,562 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) [2022-03-16 11:34:01,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 11:34:03,012 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 81 check-sat command(s) [2022-03-16 11:34:03,012 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:34:03,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 188 conjunts are in the unsatisfiable core [2022-03-16 11:34:03,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:37:17,523 INFO L353 Elim1Store]: treesize reduction 9, result has 10.0 percent of original size [2022-03-16 11:37:17,524 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 [2022-03-16 11:39:16,833 INFO L353 Elim1Store]: treesize reduction 31392, result has 0.0 percent of original size [2022-03-16 11:39:16,834 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 [2022-03-16 11:39:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 20310 backedges. 1124 proven. 19116 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2022-03-16 11:39:17,553 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-16 11:44:51,964 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 11:44:51,994 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 11:44:52,000 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 11:44:52,001 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 11:44:52,001 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 [2022-03-16 11:44:52,179 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 [2022-03-16 11:44:52,179 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 ∨-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 34 xjuncts wrt. a ∧-2-2-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. [2022-03-16 11:44:52,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 11:44:52,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 11:44:52,181 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 11:44:52,186 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-16 11:44:52,188 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 11:44:52,188 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 11:44:52,192 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 11:44:52 BasicIcfg [2022-03-16 11:44:52,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 11:44:52,192 INFO L158 Benchmark]: Toolchain (without parser) took 773366.71ms. Allocated memory was 185.6MB in the beginning and 746.6MB in the end (delta: 561.0MB). Free memory was 143.4MB in the beginning and 487.9MB in the end (delta: -344.5MB). Peak memory consumption was 488.9MB. Max. memory is 8.0GB. [2022-03-16 11:44:52,193 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:44:52,193 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.35ms. Allocated memory is still 185.6MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:44:52,193 INFO L158 Benchmark]: Boogie Preprocessor took 26.73ms. Allocated memory is still 185.6MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 952.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 11:44:52,193 INFO L158 Benchmark]: RCFGBuilder took 252.16ms. Allocated memory is still 185.6MB. Free memory was 140.8MB in the beginning and 129.8MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 11:44:52,196 INFO L158 Benchmark]: TraceAbstraction took 773050.19ms. Allocated memory was 185.6MB in the beginning and 746.6MB in the end (delta: 561.0MB). Free memory was 129.4MB in the beginning and 487.9MB in the end (delta: -358.5MB). Peak memory consumption was 475.2MB. Max. memory is 8.0GB. [2022-03-16 11:44:52,198 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 185.6MB. Free memory is still 144.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.35ms. Allocated memory is still 185.6MB. Free memory was 143.4MB in the beginning and 141.8MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 26.73ms. Allocated memory is still 185.6MB. Free memory was 141.8MB in the beginning and 140.9MB in the end (delta: 952.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.16ms. Allocated memory is still 185.6MB. Free memory was 140.8MB in the beginning and 129.8MB in the end (delta: 11.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 773050.19ms. Allocated memory was 185.6MB in the beginning and 746.6MB in the end (delta: 561.0MB). Free memory was 129.4MB in the beginning and 487.9MB in the end (delta: -358.5MB). Peak memory consumption was 475.2MB. 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 ∨-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 34 xjuncts wrt. a ∧-2-2-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 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 ∨-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 34 xjuncts wrt. a ∧-2-2-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 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 ∨-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 34 xjuncts wrt. a ∧-2-2-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 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 ∨-2-2-2-3-34-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 term,while PolyPacSimplificationTermWalker was simplifying 34 xjuncts wrt. a ∧-2-2-2-2-2-2-3-31-4-29-2-2-2-2-2-2-2-2-2-2-2-2-2-2-6-19-4-14-3-11-2-2-2-2-7-7-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 772.9s, 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, 13.8s SatisfiabilityAnalysisTime, 85.5s 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