/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/counter-determinism.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:00:14,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:00:14,871 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:00:14,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:00:14,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:00:14,920 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:00:14,923 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:00:14,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:00:14,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:00:14,929 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:00:14,930 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:00:14,931 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:00:14,931 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:00:14,933 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:00:14,934 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:00:14,936 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:00:14,937 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:00:14,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:00:14,939 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:00:14,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:00:14,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:00:14,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:00:14,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:00:14,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:00:14,953 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-02 10:00:14,959 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:00:14,960 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:00:14,960 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:00:14,961 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 10:00:14,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:00:14,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:00:14,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:00:14,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:00:14,985 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:00:14,985 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:00:14,986 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:00:14,986 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:00:14,986 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:00:14,986 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:00:14,987 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:00:14,988 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:00:14,988 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:00:14,989 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:00:14,989 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:00:14,989 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:00:14,989 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:00:14,990 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:00:14,990 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:00:15,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:00:15,211 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:00:15,213 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:00:15,214 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:00:15,215 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:00:15,216 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl [2022-03-02 10:00:15,216 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl' [2022-03-02 10:00:15,232 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:00:15,233 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:00:15,235 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:00:15,235 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:00:15,235 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:00:15,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,254 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:00:15,255 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:00:15,257 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:00:15,257 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:00:15,258 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:00:15,263 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,263 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,265 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,266 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,270 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,273 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,273 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,277 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:00:15,278 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:00:15,278 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:00:15,278 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:00:15,279 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/1) ... [2022-03-02 10:00:15,283 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:00:15,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:15,304 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 10:00:15,306 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 10:00:15,339 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:00:15,339 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:00:15,339 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:00:15,339 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:00:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:00:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:00:15,340 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:00:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:00:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:00:15,340 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-02 10:00:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-02 10:00:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-02 10:00:15,340 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-02 10:00:15,340 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-02 10:00:15,340 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-02 10:00:15,341 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 10:00:15,374 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:00:15,376 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:00:15,538 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:00:15,558 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:00:15,558 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:00:15,576 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:00:15 BoogieIcfgContainer [2022-03-02 10:00:15,576 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:00:15,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:00:15,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:00:15,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:00:15,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:00:15" (1/2) ... [2022-03-02 10:00:15,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d3c54dd and model type counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:00:15, skipping insertion in model container [2022-03-02 10:00:15,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:00:15" (2/2) ... [2022-03-02 10:00:15,598 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-determinism.wvr.bpl [2022-03-02 10:00:15,605 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:00:15,605 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:00:15,606 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:00:15,606 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:00:15,653 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-02 10:00:15,688 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:00:15,688 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:15,689 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 10:00:15,690 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 10:00:15,727 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:00:15,732 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 10:00:15,732 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-02 10:00:16,101 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 693 transitions and produced 640 states. [2022-03-02 10:00:16,102 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:00:16,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:16,109 INFO L85 PathProgramCache]: Analyzing trace with hash -1301531829, now seen corresponding path program 1 times [2022-03-02 10:00:16,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:16,116 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041780911] [2022-03-02 10:00:16,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:16,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:16,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:16,723 INFO L134 CoverageAnalysis]: Checked inductivity of 2761 backedges. 441 proven. 1660 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2022-03-02 10:00:16,735 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:00:16,735 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041780911] [2022-03-02 10:00:16,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041780911] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:00:16,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1874660540] [2022-03-02 10:00:16,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:16,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:00:16,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:16,738 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 10:00:16,739 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 10:00:16,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:16,828 INFO L263 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-02 10:00:16,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:00:17,850 INFO L134 CoverageAnalysis]: Checked inductivity of 2761 backedges. 1388 proven. 344 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2022-03-02 10:00:17,850 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:00:18,705 INFO L134 CoverageAnalysis]: Checked inductivity of 2761 backedges. 1388 proven. 344 refuted. 0 times theorem prover too weak. 1029 trivial. 0 not checked. [2022-03-02 10:00:18,705 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1874660540] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:00:18,705 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:00:18,705 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 29, 29] total 69 [2022-03-02 10:00:18,707 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665399391] [2022-03-02 10:00:18,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:00:18,712 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 69 states [2022-03-02 10:00:18,712 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:00:18,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2022-03-02 10:00:18,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1015, Invalid=3677, Unknown=0, NotChecked=0, Total=4692 [2022-03-02 10:00:18,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:18,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:00:18,745 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 69 states, 69 states have (on average 2.8405797101449277) internal successors, (196), 69 states have internal predecessors, (196), 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 10:00:18,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:21,540 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 900 transitions and produced 818 states. [2022-03-02 10:00:21,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-02 10:00:21,558 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-02 10:00:21,763 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 10:00:21,764 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:00:21,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:21,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1774538179, now seen corresponding path program 2 times [2022-03-02 10:00:21,765 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:21,765 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882455459] [2022-03-02 10:00:21,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:21,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:21,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:22,106 INFO L134 CoverageAnalysis]: Checked inductivity of 2874 backedges. 1692 proven. 441 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-03-02 10:00:22,106 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:00:22,106 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882455459] [2022-03-02 10:00:22,106 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882455459] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:00:22,107 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134938006] [2022-03-02 10:00:22,107 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:00:22,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:00:22,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:22,116 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 10:00:22,117 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 10:00:22,219 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:00:22,219 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:00:22,237 INFO L263 TraceCheckSpWp]: Trace formula consists of 509 conjuncts, 44 conjunts are in the unsatisfiable core [2022-03-02 10:00:22,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:00:22,488 INFO L134 CoverageAnalysis]: Checked inductivity of 2874 backedges. 1692 proven. 441 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-03-02 10:00:22,488 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:00:22,830 INFO L134 CoverageAnalysis]: Checked inductivity of 2874 backedges. 1692 proven. 441 refuted. 0 times theorem prover too weak. 741 trivial. 0 not checked. [2022-03-02 10:00:22,831 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134938006] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:00:22,832 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:00:22,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 24 [2022-03-02 10:00:22,832 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68234977] [2022-03-02 10:00:22,833 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:00:22,834 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-02 10:00:22,834 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:00:22,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-02 10:00:22,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=276, Invalid=276, Unknown=0, NotChecked=0, Total=552 [2022-03-02 10:00:22,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:22,836 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:00:22,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.166666666666667) internal successors, (124), 24 states have internal predecessors, (124), 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 10:00:22,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-02 10:00:22,836 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:25,516 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1636 transitions and produced 1463 states. [2022-03-02 10:00:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:00:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:00:25,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-02 10:00:25,734 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 10:00:25,735 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:00:25,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:25,735 INFO L85 PathProgramCache]: Analyzing trace with hash 350922617, now seen corresponding path program 3 times [2022-03-02 10:00:25,736 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:25,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859307543] [2022-03-02 10:00:25,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:25,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:25,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 7602 backedges. 5711 proven. 1875 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-02 10:00:31,186 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:00:31,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859307543] [2022-03-02 10:00:31,186 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859307543] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:00:31,186 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1604988105] [2022-03-02 10:00:31,187 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:00:31,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:00:31,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:31,189 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 10:00:31,190 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 10:00:31,276 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 20 check-sat command(s) [2022-03-02 10:00:31,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:00:31,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 457 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-02 10:00:31,282 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:00:32,897 INFO L134 CoverageAnalysis]: Checked inductivity of 7602 backedges. 1501 proven. 1772 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked. [2022-03-02 10:00:32,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:00:34,150 INFO L134 CoverageAnalysis]: Checked inductivity of 7602 backedges. 1501 proven. 1772 refuted. 0 times theorem prover too weak. 4329 trivial. 0 not checked. [2022-03-02 10:00:34,150 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1604988105] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:00:34,150 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:00:34,150 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [119, 17, 17] total 150 [2022-03-02 10:00:34,151 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502365583] [2022-03-02 10:00:34,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:00:34,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2022-03-02 10:00:34,152 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:00:34,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2022-03-02 10:00:34,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3980, Invalid=18670, Unknown=0, NotChecked=0, Total=22650 [2022-03-02 10:00:34,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:34,158 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:00:34,159 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 151 states have (on average 2.5364238410596025) internal successors, (383), 150 states have internal predecessors, (383), 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 10:00:34,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:00:34,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:00:34,159 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:48,431 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3471 transitions and produced 2977 states. [2022-03-02 10:00:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:00:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:00:48,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:00:48,451 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-02 10:00:48,648 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 10:00:48,649 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:00:48,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:48,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1797173199, now seen corresponding path program 4 times [2022-03-02 10:00:48,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:48,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592557304] [2022-03-02 10:00:48,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:48,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:48,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:50,979 INFO L134 CoverageAnalysis]: Checked inductivity of 36884 backedges. 21041 proven. 6084 refuted. 0 times theorem prover too weak. 9759 trivial. 0 not checked. [2022-03-02 10:00:50,980 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:00:50,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592557304] [2022-03-02 10:00:50,980 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592557304] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:00:50,980 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2034045134] [2022-03-02 10:00:50,980 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:00:50,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:00:50,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:50,982 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 10:00:50,983 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 10:00:51,289 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:00:51,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:00:51,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 1800 conjuncts, 158 conjunts are in the unsatisfiable core [2022-03-02 10:00:51,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:00:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 36884 backedges. 21041 proven. 6084 refuted. 0 times theorem prover too weak. 9759 trivial. 0 not checked. [2022-03-02 10:00:52,268 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:00:53,128 INFO L134 CoverageAnalysis]: Checked inductivity of 36884 backedges. 21041 proven. 6084 refuted. 0 times theorem prover too weak. 9759 trivial. 0 not checked. [2022-03-02 10:00:53,128 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2034045134] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:00:53,128 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:00:53,128 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [81, 81, 81] total 81 [2022-03-02 10:00:53,129 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211563870] [2022-03-02 10:00:53,129 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:00:53,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-03-02 10:00:53,132 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:00:53,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-03-02 10:00:53,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3240, Invalid=3240, Unknown=0, NotChecked=0, Total=6480 [2022-03-02 10:00:53,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:53,136 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:00:53,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 4.679012345679013) internal successors, (379), 81 states have internal predecessors, (379), 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 10:00:53,136 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:00:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:00:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:00:53,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:00:54,677 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4155 transitions and produced 3600 states. [2022-03-02 10:00:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:00:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:00:54,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:00:54,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:00:54,711 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-02 10:00:54,891 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 10:00:54,892 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:00:54,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:00:54,892 INFO L85 PathProgramCache]: Analyzing trace with hash -752934811, now seen corresponding path program 5 times [2022-03-02 10:00:54,893 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:00:54,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332118039] [2022-03-02 10:00:54,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:00:54,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:00:55,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:00:59,172 INFO L134 CoverageAnalysis]: Checked inductivity of 46676 backedges. 27006 proven. 16336 refuted. 0 times theorem prover too weak. 3334 trivial. 0 not checked. [2022-03-02 10:00:59,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:00:59,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332118039] [2022-03-02 10:00:59,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332118039] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:00:59,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2000055246] [2022-03-02 10:00:59,172 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:00:59,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:00:59,173 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:00:59,174 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 10:00:59,174 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 10:00:59,640 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 127 check-sat command(s) [2022-03-02 10:00:59,640 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:00:59,659 INFO L263 TraceCheckSpWp]: Trace formula consists of 2040 conjuncts, 167 conjunts are in the unsatisfiable core [2022-03-02 10:00:59,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:01:11,385 INFO L134 CoverageAnalysis]: Checked inductivity of 46676 backedges. 18361 proven. 19906 refuted. 0 times theorem prover too weak. 8409 trivial. 0 not checked. [2022-03-02 10:01:11,386 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:01:27,397 INFO L134 CoverageAnalysis]: Checked inductivity of 46676 backedges. 33753 proven. 4506 refuted. 0 times theorem prover too weak. 8417 trivial. 0 not checked. [2022-03-02 10:01:27,398 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2000055246] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:01:27,398 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:01:27,398 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [120, 168, 160] total 444 [2022-03-02 10:01:27,398 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960755790] [2022-03-02 10:01:27,398 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:01:27,400 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 444 states [2022-03-02 10:01:27,400 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:01:27,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 444 interpolants. [2022-03-02 10:01:27,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42574, Invalid=154118, Unknown=0, NotChecked=0, Total=196692 [2022-03-02 10:01:27,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:01:27,421 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:01:27,423 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 444 states, 444 states have (on average 3.150900900900901) internal successors, (1399), 444 states have internal predecessors, (1399), 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 10:01:27,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:01:27,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:01:27,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:01:27,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:01:27,423 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:02:46,973 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 7074 transitions and produced 6029 states. [2022-03-02 10:02:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:02:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:02:46,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:02:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:02:46,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:02:46,998 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-03-02 10:02:47,195 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 10:02:47,196 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:02:47,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:02:47,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1556187193, now seen corresponding path program 6 times [2022-03-02 10:02:47,197 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:02:47,197 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770543482] [2022-03-02 10:02:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:02:47,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:02:47,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:02:53,336 INFO L134 CoverageAnalysis]: Checked inductivity of 125770 backedges. 72530 proven. 27685 refuted. 0 times theorem prover too weak. 25555 trivial. 0 not checked. [2022-03-02 10:02:53,336 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:02:53,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770543482] [2022-03-02 10:02:53,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [770543482] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:02:53,337 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061387257] [2022-03-02 10:02:53,337 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 10:02:53,337 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:02:53,337 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:02:53,338 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 10:02:53,339 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 10:02:54,687 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 249 check-sat command(s) [2022-03-02 10:02:54,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:02:54,718 INFO L263 TraceCheckSpWp]: Trace formula consists of 2777 conjuncts, 83 conjunts are in the unsatisfiable core [2022-03-02 10:02:54,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:03:01,035 INFO L134 CoverageAnalysis]: Checked inductivity of 125770 backedges. 18555 proven. 72478 refuted. 0 times theorem prover too weak. 34737 trivial. 0 not checked. [2022-03-02 10:03:01,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:03:06,238 INFO L134 CoverageAnalysis]: Checked inductivity of 125770 backedges. 18555 proven. 72478 refuted. 0 times theorem prover too weak. 34737 trivial. 0 not checked. [2022-03-02 10:03:06,240 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061387257] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:03:06,240 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:03:06,240 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [159, 84, 84] total 323 [2022-03-02 10:03:06,240 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050820178] [2022-03-02 10:03:06,241 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:03:06,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-02 10:03:06,242 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:03:06,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-02 10:03:06,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23188, Invalid=80818, Unknown=0, NotChecked=0, Total=104006 [2022-03-02 10:03:06,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:03:06,256 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:03:06,257 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 3.486068111455108) internal successors, (1126), 323 states have internal predecessors, (1126), 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 10:03:06,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:03:06,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:03:06,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:03:06,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:03:06,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:03:06,258 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:04:10,251 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11755 transitions and produced 10008 states. [2022-03-02 10:04:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:04:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:04:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:04:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:04:10,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:04:10,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:04:10,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-02 10:04:10,471 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 10:04:10,471 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:04:10,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:04:10,472 INFO L85 PathProgramCache]: Analyzing trace with hash -1520859047, now seen corresponding path program 7 times [2022-03-02 10:04:10,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:04:10,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1414407737] [2022-03-02 10:04:10,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:04:10,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:04:11,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:04:22,133 INFO L134 CoverageAnalysis]: Checked inductivity of 361537 backedges. 132394 proven. 42076 refuted. 0 times theorem prover too weak. 187067 trivial. 0 not checked. [2022-03-02 10:04:22,133 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:04:22,133 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1414407737] [2022-03-02 10:04:22,133 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1414407737] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:04:22,134 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801954317] [2022-03-02 10:04:22,134 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 10:04:22,134 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:04:22,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:04:22,135 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:04:22,138 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-02 10:04:22,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:04:23,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 5944 conjuncts, 410 conjunts are in the unsatisfiable core [2022-03-02 10:04:23,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:04:25,288 INFO L134 CoverageAnalysis]: Checked inductivity of 361537 backedges. 132394 proven. 42076 refuted. 0 times theorem prover too weak. 187067 trivial. 0 not checked. [2022-03-02 10:04:25,289 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:04:27,707 INFO L134 CoverageAnalysis]: Checked inductivity of 361537 backedges. 132394 proven. 42076 refuted. 0 times theorem prover too weak. 187067 trivial. 0 not checked. [2022-03-02 10:04:27,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801954317] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:04:27,707 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:04:27,708 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [198, 198, 198] total 198 [2022-03-02 10:04:27,708 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637367810] [2022-03-02 10:04:27,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:04:27,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 198 states [2022-03-02 10:04:27,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:04:27,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 198 interpolants. [2022-03-02 10:04:27,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19503, Invalid=19503, Unknown=0, NotChecked=0, Total=39006 [2022-03-02 10:04:27,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:04:27,714 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:04:27,715 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 198 states, 198 states have (on average 4.262626262626263) internal successors, (844), 198 states have internal predecessors, (844), 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 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:04:27,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:04:48,305 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12340 transitions and produced 10437 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:04:48,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-02 10:04:48,329 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-02 10:04:48,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-02 10:04:48,524 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:04:48,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:04:48,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1728023015, now seen corresponding path program 8 times [2022-03-02 10:04:48,525 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:04:48,525 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885297542] [2022-03-02 10:04:48,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:04:48,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:04:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:05:01,914 INFO L134 CoverageAnalysis]: Checked inductivity of 378970 backedges. 151939 proven. 59509 refuted. 0 times theorem prover too weak. 167522 trivial. 0 not checked. [2022-03-02 10:05:01,914 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:05:01,914 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885297542] [2022-03-02 10:05:01,914 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885297542] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:05:01,915 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781850671] [2022-03-02 10:05:01,915 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:05:01,915 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:05:01,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:05:01,916 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:05:01,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-02 10:05:02,827 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:05:02,827 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:05:02,889 INFO L263 TraceCheckSpWp]: Trace formula consists of 6139 conjuncts, 488 conjunts are in the unsatisfiable core [2022-03-02 10:05:02,908 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:05:04,837 INFO L134 CoverageAnalysis]: Checked inductivity of 378970 backedges. 151939 proven. 59509 refuted. 0 times theorem prover too weak. 167522 trivial. 0 not checked. [2022-03-02 10:05:04,838 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:05:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 378970 backedges. 151939 proven. 59509 refuted. 0 times theorem prover too weak. 167522 trivial. 0 not checked. [2022-03-02 10:05:07,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781850671] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:05:07,315 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:05:07,316 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [237, 237, 237] total 237 [2022-03-02 10:05:07,317 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1676415085] [2022-03-02 10:05:07,318 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:05:07,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 237 states [2022-03-02 10:05:07,321 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:05:07,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 237 interpolants. [2022-03-02 10:05:07,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27966, Invalid=27966, Unknown=0, NotChecked=0, Total=55932 [2022-03-02 10:05:07,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:05:07,325 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:05:07,325 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 237 states, 237 states have (on average 4.29957805907173) internal successors, (1019), 237 states have internal predecessors, (1019), 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 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:05:07,325 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:05:07,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-02 10:05:07,326 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:05:44,165 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12925 transitions and produced 10866 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:05:44,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-02 10:05:44,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2022-03-02 10:05:44,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-02 10:05:44,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:05:44,389 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:05:44,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:05:44,390 INFO L85 PathProgramCache]: Analyzing trace with hash 1068845813, now seen corresponding path program 9 times [2022-03-02 10:05:44,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:05:44,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795465415] [2022-03-02 10:05:44,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:05:44,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:05:47,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:06:03,299 INFO L134 CoverageAnalysis]: Checked inductivity of 399445 backedges. 168684 proven. 79984 refuted. 0 times theorem prover too weak. 150777 trivial. 0 not checked. [2022-03-02 10:06:03,299 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:06:03,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795465415] [2022-03-02 10:06:03,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795465415] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:06:03,300 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1823585096] [2022-03-02 10:06:03,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:06:03,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:06:03,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:06:03,301 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:06:03,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-02 10:06:10,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 325 check-sat command(s) [2022-03-02 10:06:10,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:06:10,807 INFO L263 TraceCheckSpWp]: Trace formula consists of 6121 conjuncts, 370 conjunts are in the unsatisfiable core [2022-03-02 10:06:10,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:07:17,630 INFO L134 CoverageAnalysis]: Checked inductivity of 399445 backedges. 83671 proven. 273382 refuted. 0 times theorem prover too weak. 42392 trivial. 0 not checked. [2022-03-02 10:07:17,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:08:48,986 INFO L134 CoverageAnalysis]: Checked inductivity of 399445 backedges. 87645 proven. 269408 refuted. 0 times theorem prover too weak. 42392 trivial. 0 not checked. [2022-03-02 10:08:48,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1823585096] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:08:48,987 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:08:48,988 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [276, 370, 370] total 1014 [2022-03-02 10:08:48,988 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055504249] [2022-03-02 10:08:48,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:08:48,991 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1014 states [2022-03-02 10:08:48,991 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:08:49,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1014 interpolants. [2022-03-02 10:08:49,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=234371, Invalid=792811, Unknown=0, NotChecked=0, Total=1027182 [2022-03-02 10:08:49,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:08:49,053 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:08:49,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1014 states, 1014 states have (on average 3.0719921104536487) internal successors, (3115), 1014 states have internal predecessors, (3115), 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 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 554 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2022-03-02 10:08:49,055 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:12:44,949 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 57276 transitions and produced 42888 states. [2022-03-02 10:12:44,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 227 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 548 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 561 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2022-03-02 10:12:44,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 626 states. [2022-03-02 10:12:44,979 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-02 10:12:45,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-02 10:12:45,167 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-02 10:12:45,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:12:45,169 INFO L85 PathProgramCache]: Analyzing trace with hash -150230613, now seen corresponding path program 10 times [2022-03-02 10:12:45,169 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:12:45,169 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864694995] [2022-03-02 10:12:45,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:12:45,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:12:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:13:32,737 INFO L134 CoverageAnalysis]: Checked inductivity of 14475429 backedges. 2044918 proven. 79524 refuted. 0 times theorem prover too weak. 12350987 trivial. 0 not checked. [2022-03-02 10:13:32,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:13:32,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864694995] [2022-03-02 10:13:32,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864694995] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:13:32,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2084239198] [2022-03-02 10:13:32,739 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:13:32,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:13:32,739 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:13:32,740 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-02 10:13:32,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-02 10:13:38,473 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:13:38,473 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:13:38,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 29979 conjuncts, 566 conjunts are in the unsatisfiable core [2022-03-02 10:13:38,788 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:13:46,346 INFO L134 CoverageAnalysis]: Checked inductivity of 14475429 backedges. 2044918 proven. 79524 refuted. 0 times theorem prover too weak. 12350987 trivial. 0 not checked. [2022-03-02 10:13:46,347 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-02 10:13:46,954 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-02 10:13:46,958 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-02 10:13:46,958 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:13:46,959 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 10:13:46,959 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 10:13:47,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-02 10:13:47,171 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-02 10:13:47,171 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. [2022-03-02 10:13:47,173 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-02 10:13:47,173 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-02 10:13:47,173 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-02 10:13:47,173 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-02 10:13:47,177 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-02 10:13:47,179 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:13:47,179 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:13:47,180 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:13:47 BasicIcfg [2022-03-02 10:13:47,180 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:13:47,181 INFO L158 Benchmark]: Toolchain (without parser) took 811947.60ms. Allocated memory was 191.9MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 152.0MB in the beginning and 5.5GB in the end (delta: -5.3GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-03-02 10:13:47,181 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:13:47,181 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.59ms. Allocated memory is still 191.9MB. Free memory was 151.9MB in the beginning and 150.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:13:47,181 INFO L158 Benchmark]: Boogie Preprocessor took 20.20ms. Allocated memory is still 191.9MB. Free memory was 150.4MB in the beginning and 149.4MB in the end (delta: 974.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:13:47,182 INFO L158 Benchmark]: RCFGBuilder took 298.51ms. Allocated memory is still 191.9MB. Free memory was 149.4MB in the beginning and 139.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-02 10:13:47,182 INFO L158 Benchmark]: TraceAbstraction took 811589.15ms. Allocated memory was 191.9MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 139.0MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.6GB. Max. memory is 8.0GB. [2022-03-02 10:13:47,183 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.09ms. Allocated memory is still 191.9MB. Free memory was 153.2MB in the beginning and 153.1MB in the end (delta: 125.8kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.59ms. Allocated memory is still 191.9MB. Free memory was 151.9MB in the beginning and 150.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.20ms. Allocated memory is still 191.9MB. Free memory was 150.4MB in the beginning and 149.4MB in the end (delta: 974.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 298.51ms. Allocated memory is still 191.9MB. Free memory was 149.4MB in the beginning and 139.5MB in the end (delta: 9.9MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 811589.15ms. Allocated memory was 191.9MB in the beginning and 7.2GB in the end (delta: 7.0GB). Free memory was 139.0MB in the beginning and 5.5GB in the end (delta: -5.4GB). Peak memory consumption was 1.6GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - TimeoutResultAtElement [Line: 75]: 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 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - TimeoutResultAtElement [Line: 74]: 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 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - TimeoutResultAtElement [Line: 74]: 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 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - TimeoutResultAtElement [Line: 76]: 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 10436 with TraceHistMax 3642,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 1 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 811.5s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 458.5s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2629, 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: 0.6s SsaConstructionTime, 18.2s SatisfiabilityAnalysisTime, 269.3s InterpolantComputationTime, 19926 NumberOfCodeBlocks, 19574 NumberOfCodeBlocksAsserted, 737 NumberOfCheckSat, 29862 ConstructedInterpolants, 0 QuantifiedInterpolants, 102666 SizeOfPredicates, 29 NumberOfNonLiveVariables, 26187 ConjunctsInSsa, 1766 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 2919297/4087557 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