/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:54:11,141 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:54:11,142 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:54:11,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:54:11,198 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:54:11,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:54:11,201 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:54:11,206 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:54:11,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:54:11,207 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:54:11,208 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:54:11,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:54:11,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:54:11,209 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:54:11,210 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:54:11,210 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:54:11,211 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:54:11,211 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:54:11,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:54:11,213 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:54:11,214 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:54:11,220 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:54:11,221 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:54:11,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:54:11,223 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:54:11,227 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:54:11,228 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:54:11,228 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:54:11,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-02 10:54:11,243 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:54:11,243 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:54:11,243 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:54:11,243 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:54:11,244 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:54:11,244 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:54:11,244 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:54:11,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:54:11,244 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:54:11,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:54:11,245 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:54:11,246 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:54:11,246 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:54:11,246 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:54:11,247 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:54:11,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:54:11,402 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:54:11,404 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:54:11,404 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:54:11,405 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:54:11,406 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl [2022-03-02 10:54:11,406 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/nonblocking-counter-alt2.wvr.bpl' [2022-03-02 10:54:11,431 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:54:11,431 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:54:11,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:54:11,432 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:54:11,432 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:54:11,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,451 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,459 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:54:11,459 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:54:11,460 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:54:11,460 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:54:11,461 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:54:11,465 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,469 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:54:11,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:54:11,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:54:11,471 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:54:11,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/1) ... [2022-03-02 10:54:11,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:54:11,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:11,489 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-02 10:54:11,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-02 10:54:11,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:54:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:54:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:54:11,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:54:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:54:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:54:11,522 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:54:11,522 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:54:11,522 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:54:11,523 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-02 10:54:11,555 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:54:11,556 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:54:11,652 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:54:11,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:54:11,661 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:54:11,662 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:54:11 BoogieIcfgContainer [2022-03-02 10:54:11,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:54:11,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:54:11,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:54:11,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:54:11,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:54:11" (1/2) ... [2022-03-02 10:54:11,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@61329c2a and model type nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:54:11, skipping insertion in model container [2022-03-02 10:54:11,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:54:11" (2/2) ... [2022-03-02 10:54:11,671 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-counter-alt2.wvr.bpl [2022-03-02 10:54:11,678 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:54:11,678 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:54:11,679 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:54:11,679 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:54:11,720 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 10:54:11,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:54:11,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:11,762 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-02 10:54:11,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-02 10:54:11,808 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:54:11,813 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-02 10:54:11,813 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 10:54:11,933 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 123 transitions and produced 110 states. [2022-03-02 10:54:11,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:54:11,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:54:11,938 INFO L85 PathProgramCache]: Analyzing trace with hash 356590127, now seen corresponding path program 1 times [2022-03-02 10:54:11,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:54:11,945 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065785466] [2022-03-02 10:54:11,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:54:11,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:54:12,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:54:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 121 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 10:54:12,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:54:12,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065785466] [2022-03-02 10:54:12,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065785466] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:54:12,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [41463326] [2022-03-02 10:54:12,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:54:12,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:12,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:12,487 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:54:12,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-02 10:54:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:54:12,597 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 54 conjunts are in the unsatisfiable core [2022-03-02 10:54:12,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:54:14,207 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:14,207 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:54:16,207 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 0 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:16,207 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [41463326] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:54:16,207 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:54:16,207 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 23, 23] total 61 [2022-03-02 10:54:16,209 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812085109] [2022-03-02 10:54:16,210 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:54:16,215 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-02 10:54:16,215 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:54:16,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-02 10:54:16,238 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=828, Invalid=2954, Unknown=0, NotChecked=0, Total=3782 [2022-03-02 10:54:16,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:16,241 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:54:16,242 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 2.129032258064516) internal successors, (132), 61 states have internal predecessors, (132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:54:16,243 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:19,801 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 162 transitions and produced 140 states. [2022-03-02 10:54:19,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:54:19,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:54:20,002 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-02 10:54:20,003 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:54:20,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:54:20,004 INFO L85 PathProgramCache]: Analyzing trace with hash 168962653, now seen corresponding path program 2 times [2022-03-02 10:54:20,004 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:54:20,004 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613514548] [2022-03-02 10:54:20,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:54:20,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:54:20,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:54:20,886 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 0 proven. 296 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:20,887 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:54:20,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613514548] [2022-03-02 10:54:20,887 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613514548] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:54:20,887 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1600874437] [2022-03-02 10:54:20,887 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:54:20,888 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:20,888 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:20,920 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:54:20,921 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-02 10:54:20,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:54:20,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:54:20,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 42 conjunts are in the unsatisfiable core [2022-03-02 10:54:20,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:54:22,803 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 180 proven. 114 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 10:54:22,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:54:24,321 INFO L134 CoverageAnalysis]: Checked inductivity of 296 backedges. 110 proven. 184 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-02 10:54:24,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1600874437] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:54:24,322 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:54:24,322 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 29] total 87 [2022-03-02 10:54:24,322 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575966427] [2022-03-02 10:54:24,322 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:54:24,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-03-02 10:54:24,323 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:54:24,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-03-02 10:54:24,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1187, Invalid=6469, Unknown=0, NotChecked=0, Total=7656 [2022-03-02 10:54:24,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:24,326 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:54:24,326 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.022727272727273) internal successors, (178), 87 states have internal predecessors, (178), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:54:24,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:54:24,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:26,441 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 183 transitions and produced 155 states. [2022-03-02 10:54:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:54:26,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-02 10:54:26,465 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:54:26,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:26,642 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:54:26,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:54:26,643 INFO L85 PathProgramCache]: Analyzing trace with hash -461377181, now seen corresponding path program 3 times [2022-03-02 10:54:26,643 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:54:26,643 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535596826] [2022-03-02 10:54:26,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:54:26,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:54:26,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:54:27,472 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:27,472 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:54:27,472 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535596826] [2022-03-02 10:54:27,473 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535596826] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:54:27,473 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332937226] [2022-03-02 10:54:27,473 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:54:27,473 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:27,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:27,474 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:54:27,508 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-02 10:54:27,556 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-03-02 10:54:27,556 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:54:27,557 WARN L261 TraceCheckSpWp]: Trace formula consists of 164 conjuncts, 96 conjunts are in the unsatisfiable core [2022-03-02 10:54:27,560 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:54:30,001 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:30,002 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:54:39,484 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:39,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332937226] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:54:39,484 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:54:39,485 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 35, 35] total 101 [2022-03-02 10:54:39,485 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39850910] [2022-03-02 10:54:39,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:54:39,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-02 10:54:39,485 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:54:39,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-02 10:54:39,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1387, Invalid=8915, Unknown=0, NotChecked=0, Total=10302 [2022-03-02 10:54:39,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:39,489 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:54:39,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 1.9313725490196079) internal successors, (197), 101 states have internal predecessors, (197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:54:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:54:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-02 10:54:39,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:54:57,991 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 279 transitions and produced 213 states. [2022-03-02 10:54:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:54:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-03-02 10:54:57,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-03-02 10:54:58,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-02 10:54:58,208 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:58,209 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:54:58,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:54:58,209 INFO L85 PathProgramCache]: Analyzing trace with hash 1312795897, now seen corresponding path program 4 times [2022-03-02 10:54:58,210 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:54:58,210 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215752288] [2022-03-02 10:54:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:54:58,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:54:58,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:54:59,042 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 676 proven. 222 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:54:59,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:54:59,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215752288] [2022-03-02 10:54:59,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215752288] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:54:59,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1285139396] [2022-03-02 10:54:59,042 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:54:59,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:54:59,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:54:59,044 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:54:59,045 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-02 10:54:59,097 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:54:59,097 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:54:59,099 INFO L263 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 95 conjunts are in the unsatisfiable core [2022-03-02 10:54:59,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:55:01,270 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 0 proven. 898 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:55:01,270 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:55:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 898 backedges. 702 proven. 196 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:55:06,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1285139396] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:55:06,691 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:55:06,692 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 46, 46] total 133 [2022-03-02 10:55:06,692 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828151953] [2022-03-02 10:55:06,692 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:55:06,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 134 states [2022-03-02 10:55:06,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:55:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 134 interpolants. [2022-03-02 10:55:06,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4071, Invalid=13751, Unknown=0, NotChecked=0, Total=17822 [2022-03-02 10:55:06,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:55:06,696 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:55:06,696 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 134 states, 134 states have (on average 2.044776119402985) internal successors, (274), 133 states have internal predecessors, (274), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:55:06,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-03-02 10:55:06,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 51 states. [2022-03-02 10:55:06,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-03-02 10:55:06,697 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:55:26,097 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 668 transitions and produced 528 states. [2022-03-02 10:55:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 10:55:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 10:55:26,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-02 10:55:26,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 113 states. [2022-03-02 10:55:26,114 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 10:55:26,298 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:55:26,298 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:55:26,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:55:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash -30474865, now seen corresponding path program 5 times [2022-03-02 10:55:26,299 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:55:26,299 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595456130] [2022-03-02 10:55:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:55:26,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:55:26,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:55:29,261 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 4694 proven. 1647 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2022-03-02 10:55:29,262 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:55:29,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595456130] [2022-03-02 10:55:29,262 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595456130] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:55:29,262 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [884396313] [2022-03-02 10:55:29,262 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:55:29,262 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:55:29,262 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:55:29,264 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:55:29,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-02 10:55:29,573 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 67 check-sat command(s) [2022-03-02 10:55:29,573 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:55:29,585 WARN L261 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 332 conjunts are in the unsatisfiable core [2022-03-02 10:55:29,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:55:41,970 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 0 proven. 6361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:55:41,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:58:48,657 INFO L134 CoverageAnalysis]: Checked inductivity of 6361 backedges. 0 proven. 6361 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:58:48,658 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [884396313] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:58:48,658 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:58:48,658 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [94, 115, 116] total 322 [2022-03-02 10:58:48,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633211781] [2022-03-02 10:58:48,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:58:48,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-02 10:58:48,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:58:48,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-02 10:58:48,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19699, Invalid=84307, Unknown=0, NotChecked=0, Total=104006 [2022-03-02 10:58:48,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:58:48,672 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:58:48,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 2.086687306501548) internal successors, (674), 322 states have internal predecessors, (674), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 10:58:48,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 10:58:48,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 10:58:48,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-02 10:58:48,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 113 states. [2022-03-02 10:58:48,673 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 11:01:24,861 WARN L228 SmtUtils]: Spent 21.81s on a formula simplification. DAG size of input: 2520 DAG size of output: 2012 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-02 11:01:50,562 WARN L228 SmtUtils]: Spent 22.54s on a formula simplification. DAG size of input: 2523 DAG size of output: 2015 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-02 11:02:15,191 WARN L228 SmtUtils]: Spent 21.24s on a formula simplification. DAG size of input: 2529 DAG size of output: 2021 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-02 11:02:16,398 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 745 transitions and produced 586 states. [2022-03-02 11:02:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 11:02:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-02 11:02:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2022-03-02 11:02:16,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 114 states. [2022-03-02 11:02:16,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2022-03-02 11:02:16,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 11:02:16,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 11:02:16,600 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 11:02:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 11:02:16,600 INFO L85 PathProgramCache]: Analyzing trace with hash -964943713, now seen corresponding path program 6 times [2022-03-02 11:02:16,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 11:02:16,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3015217] [2022-03-02 11:02:16,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 11:02:16,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 11:02:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 11:02:34,613 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 0 proven. 7325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 11:02:34,614 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 11:02:34,614 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3015217] [2022-03-02 11:02:34,614 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3015217] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 11:02:34,615 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1947708108] [2022-03-02 11:02:34,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 11:02:34,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 11:02:34,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 11:02:34,617 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 11:02:34,617 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-02 11:02:35,258 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 63 check-sat command(s) [2022-03-02 11:02:35,258 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 11:02:35,267 WARN L261 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 489 conjunts are in the unsatisfiable core [2022-03-02 11:02:35,272 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 11:02:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 3 proven. 7318 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 11:02:49,238 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 11:03:15,674 INFO L134 CoverageAnalysis]: Checked inductivity of 7325 backedges. 0 proven. 7325 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 11:03:15,675 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1947708108] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 11:03:15,675 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 11:03:15,675 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 127, 129] total 320 [2022-03-02 11:03:15,675 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684068192] [2022-03-02 11:03:15,675 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 11:03:15,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 320 states [2022-03-02 11:03:15,676 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 11:03:15,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 320 interpolants. [2022-03-02 11:03:15,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17028, Invalid=85052, Unknown=0, NotChecked=0, Total=102080 [2022-03-02 11:03:15,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 11:03:15,682 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 11:03:15,683 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 320 states, 320 states have (on average 1.996875) internal successors, (639), 320 states have internal predecessors, (639), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 99 states. [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 114 states. [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 223 states. [2022-03-02 11:03:15,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 11:04:54,394 WARN L228 SmtUtils]: Spent 5.48s on a formula simplification. DAG size of input: 1140 DAG size of output: 740 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-03-02 11:05:07,110 WARN L228 SmtUtils]: Spent 5.30s on a formula simplification. DAG size of input: 1138 DAG size of output: 738 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-03-02 11:08:21,243 WARN L244 SmtUtils]: Removed 3 from assertion stack [2022-03-02 11:08:21,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-02 11:08:21,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 11:08:21,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 11:08:21,261 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 11:08:21,443 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 11:08:21,444 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 933 for 2313ms.. [2022-03-02 11:08:21,446 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 11:08:21,446 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 11:08:21,446 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 11:08:21,450 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-02 11:08:21,451 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 11:08:21,451 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 11:08:21,453 INFO L202 PluginConnector]: Adding new model nonblocking-counter-alt2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 11:08:21 BasicIcfg [2022-03-02 11:08:21,453 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 11:08:21,453 INFO L158 Benchmark]: Toolchain (without parser) took 850021.59ms. Allocated memory was 204.5MB in the beginning and 896.5MB in the end (delta: 692.1MB). Free memory was 164.4MB in the beginning and 316.2MB in the end (delta: -151.8MB). Peak memory consumption was 662.5MB. Max. memory is 8.0GB. [2022-03-02 11:08:21,454 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 204.5MB. Free memory was 165.5MB in the beginning and 165.5MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 11:08:21,454 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.52ms. Allocated memory is still 204.5MB. Free memory was 164.3MB in the beginning and 162.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 11:08:21,454 INFO L158 Benchmark]: Boogie Preprocessor took 9.54ms. Allocated memory is still 204.5MB. Free memory was 162.8MB in the beginning and 161.9MB in the end (delta: 950.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 11:08:21,454 INFO L158 Benchmark]: RCFGBuilder took 191.84ms. Allocated memory is still 204.5MB. Free memory was 161.8MB in the beginning and 153.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 11:08:21,454 INFO L158 Benchmark]: TraceAbstraction took 849789.37ms. Allocated memory was 204.5MB in the beginning and 896.5MB in the end (delta: 692.1MB). Free memory was 152.5MB in the beginning and 316.2MB in the end (delta: -163.7MB). Peak memory consumption was 648.9MB. Max. memory is 8.0GB. [2022-03-02 11:08:21,455 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 0.09ms. Allocated memory is still 204.5MB. Free memory was 165.5MB in the beginning and 165.5MB in the end (delta: 73.0kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.52ms. Allocated memory is still 204.5MB. Free memory was 164.3MB in the beginning and 162.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.54ms. Allocated memory is still 204.5MB. Free memory was 162.8MB in the beginning and 161.9MB in the end (delta: 950.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 191.84ms. Allocated memory is still 204.5MB. Free memory was 161.8MB in the beginning and 153.0MB in the end (delta: 8.8MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 849789.37ms. Allocated memory was 204.5MB in the beginning and 896.5MB in the end (delta: 692.1MB). Free memory was 152.5MB in the beginning and 316.2MB in the end (delta: -163.7MB). Peak memory consumption was 648.9MB. 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: 51]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 933 for 2313ms.. - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 933 for 2313ms.. - TimeoutResultAtElement [Line: 46]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 933 for 2313ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 849.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 557.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 768, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 2.4s SatisfiabilityAnalysisTime, 288.6s InterpolantComputationTime, 1532 NumberOfCodeBlocks, 1532 NumberOfCodeBlocksAsserted, 155 NumberOfCheckSat, 2280 ConstructedInterpolants, 0 QuantifiedInterpolants, 155432 SizeOfPredicates, 60 NumberOfNonLiveVariables, 1864 ConjunctsInSsa, 1108 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 6518/46242 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