/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:54:46,184 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:54:46,185 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:54:46,241 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-19 22:54:46,251 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:54:46,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:54:46,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:54:46,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:54:46,253 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:54:46,254 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:54:46,255 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:54:46,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:54:46,257 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:54:46,258 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:54:46,258 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:54:46,259 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:54:46,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 22:54:46,265 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:54:46,266 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:54:46,266 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:54:46,267 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf [2022-02-19 22:54:46,283 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:54:46,283 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:54:46,283 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:54:46,284 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:54:46,284 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:54:46,284 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:54:46,285 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:54:46,285 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:54:46,285 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:54:46,286 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:54:46,286 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:54:46,287 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:54:46,287 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:54:46,288 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:54:46,288 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:54:46,288 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:54:46,288 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:54:46,288 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:54:46,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:54:46,476 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:54:46,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:54:46,480 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 22:54:46,481 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 22:54:46,482 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2022-02-19 22:54:46,482 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2022-02-19 22:54:46,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:54:46,499 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 22:54:46,499 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:54:46,500 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:54:46,500 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:54:46,509 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,521 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 22:54:46,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:54:46,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:54:46,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:54:46,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:54:46,527 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,528 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,528 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,530 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,532 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,533 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:54:46,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:54:46,534 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:54:46,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:54:46,535 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/1) ... [2022-02-19 22:54:46,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:54:46,548 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:46,559 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) [2022-02-19 22:54:46,565 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 [2022-02-19 22:54:46,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 22:54:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 22:54:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 22:54:46,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 22:54:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 22:54:46,584 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 22:54:46,584 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 22:54:46,584 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:54:46,585 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:54:46,585 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:54:46,616 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:54:46,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:54:46,679 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:54:46,687 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:54:46,687 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:54:46,689 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:54:46 BoogieIcfgContainer [2022-02-19 22:54:46,689 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:54:46,691 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:54:46,691 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:54:46,713 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:54:46,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:54:46" (1/2) ... [2022-02-19 22:54:46,714 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@247c2485 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:54:46, skipping insertion in model container [2022-02-19 22:54:46,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:54:46" (2/2) ... [2022-02-19 22:54:46,715 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2022-02-19 22:54:46,718 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:54:46,718 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:54:46,718 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:54:46,718 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:54:46,744 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 22:54:46,781 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:54:46,781 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:46,782 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) [2022-02-19 22:54:46,783 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 [2022-02-19 22:54:46,803 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:54:46,807 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=false [2022-02-19 22:54:46,808 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 22:54:46,912 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 117 transitions and produced 105 states. [2022-02-19 22:54:46,914 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:54:46,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:54:46,917 INFO L85 PathProgramCache]: Analyzing trace with hash 1861479551, now seen corresponding path program 1 times [2022-02-19 22:54:46,922 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:54:46,923 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4632762] [2022-02-19 22:54:46,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:46,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:54:47,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:54:47,682 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 28 proven. 57 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 22:54:47,683 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:54:47,683 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4632762] [2022-02-19 22:54:47,683 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [4632762] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:54:47,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [766726981] [2022-02-19 22:54:47,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:47,686 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:54:47,686 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:47,692 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) [2022-02-19 22:54:47,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 22:54:47,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:54:47,732 WARN L261 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 61 conjunts are in the unsatisfiable core [2022-02-19 22:54:47,736 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:54:48,698 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 0 proven. 89 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:54:48,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:54:49,588 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 1 proven. 88 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:54:49,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [766726981] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:54:49,588 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:54:49,588 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 21, 18] total 49 [2022-02-19 22:54:49,590 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1807615993] [2022-02-19 22:54:49,590 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:54:49,594 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-19 22:54:49,594 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:54:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-19 22:54:49,609 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=357, Invalid=2093, Unknown=0, NotChecked=0, Total=2450 [2022-02-19 22:54:49,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:49,611 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:54:49,614 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.18) internal successors, (109), 49 states have internal predecessors, (109), 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) [2022-02-19 22:54:49,614 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:52,358 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 198 transitions and produced 163 states. [2022-02-19 22:54:52,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-02-19 22:54:52,382 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 22:54:52,567 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 [2022-02-19 22:54:52,568 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:54:52,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:54:52,568 INFO L85 PathProgramCache]: Analyzing trace with hash 2058232129, now seen corresponding path program 2 times [2022-02-19 22:54:52,568 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:54:52,569 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031491338] [2022-02-19 22:54:52,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:52,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:54:52,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:54:52,849 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 81 proven. 45 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 22:54:52,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:54:52,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031491338] [2022-02-19 22:54:52,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2031491338] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:54:52,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2116864731] [2022-02-19 22:54:52,850 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:54:52,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:54:52,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:54:52,851 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) [2022-02-19 22:54:52,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 22:54:52,888 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:54:52,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:54:52,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 65 conjunts are in the unsatisfiable core [2022-02-19 22:54:52,891 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:54:53,716 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:54:53,716 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:54:54,417 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 0 proven. 130 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:54:54,417 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2116864731] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:54:54,418 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:54:54,418 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 22, 19] total 52 [2022-02-19 22:54:54,418 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316451967] [2022-02-19 22:54:54,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:54:54,419 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-19 22:54:54,419 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:54:54,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-19 22:54:54,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=508, Invalid=2248, Unknown=0, NotChecked=0, Total=2756 [2022-02-19 22:54:54,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:54,420 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:54:54,420 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.188679245283019) internal successors, (116), 52 states have internal predecessors, (116), 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) [2022-02-19 22:54:54,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 58 states. [2022-02-19 22:54:54,421 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:54:59,511 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2048 transitions and produced 1111 states. [2022-02-19 22:54:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:54:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:54:59,529 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-19 22:54:59,712 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 [2022-02-19 22:54:59,712 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:54:59,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:54:59,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1890144633, now seen corresponding path program 3 times [2022-02-19 22:54:59,713 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:54:59,713 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615338258] [2022-02-19 22:54:59,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:54:59,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:54:59,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:55:00,708 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 3 proven. 501 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-02-19 22:55:00,708 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:55:00,708 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615338258] [2022-02-19 22:55:00,708 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615338258] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:55:00,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [999470081] [2022-02-19 22:55:00,709 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:55:00,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:55:00,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:55:00,710 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) [2022-02-19 22:55:00,711 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 22:55:00,777 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2022-02-19 22:55:00,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:55:00,779 WARN L261 TraceCheckSpWp]: Trace formula consists of 188 conjuncts, 137 conjunts are in the unsatisfiable core [2022-02-19 22:55:00,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:55:02,804 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 514 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:55:02,804 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:55:05,121 INFO L134 CoverageAnalysis]: Checked inductivity of 514 backedges. 0 proven. 502 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-02-19 22:55:05,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [999470081] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:55:05,122 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:55:05,122 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 40, 26] total 88 [2022-02-19 22:55:05,122 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713404355] [2022-02-19 22:55:05,122 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:55:05,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 89 states [2022-02-19 22:55:05,123 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:55:05,124 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 89 interpolants. [2022-02-19 22:55:05,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=6601, Unknown=0, NotChecked=0, Total=7832 [2022-02-19 22:55:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:55:05,126 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:55:05,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 89 states, 89 states have (on average 2.303370786516854) internal successors, (205), 88 states have internal predecessors, (205), 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) [2022-02-19 22:55:05,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:55:05,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:55:05,126 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:55:24,459 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2195 transitions and produced 1260 states. [2022-02-19 22:55:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:55:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:55:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2022-02-19 22:55:24,481 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 22:55:24,661 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 [2022-02-19 22:55:24,661 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:55:24,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:55:24,662 INFO L85 PathProgramCache]: Analyzing trace with hash -15732079, now seen corresponding path program 4 times [2022-02-19 22:55:24,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:55:24,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537510204] [2022-02-19 22:55:24,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:55:24,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:55:24,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:55:27,145 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 23 proven. 2369 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2022-02-19 22:55:27,145 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:55:27,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537510204] [2022-02-19 22:55:27,145 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537510204] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:55:27,145 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2039186247] [2022-02-19 22:55:27,145 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 22:55:27,146 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:55:27,146 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:55:27,147 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) [2022-02-19 22:55:27,148 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 22:55:27,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 22:55:27,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:55:27,227 WARN L261 TraceCheckSpWp]: Trace formula consists of 368 conjuncts, 281 conjunts are in the unsatisfiable core [2022-02-19 22:55:27,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:55:33,113 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 0 proven. 2410 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:55:33,113 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:55:39,648 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 0 proven. 2386 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-02-19 22:55:39,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2039186247] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:55:39,649 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:55:39,649 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [61, 76, 50] total 180 [2022-02-19 22:55:39,649 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [927684302] [2022-02-19 22:55:39,649 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:55:39,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 181 states [2022-02-19 22:55:39,656 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:55:39,657 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 181 interpolants. [2022-02-19 22:55:39,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6092, Invalid=26488, Unknown=0, NotChecked=0, Total=32580 [2022-02-19 22:55:39,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:55:39,665 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:55:39,665 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 181 states, 181 states have (on average 2.2209944751381214) internal successors, (402), 180 states have internal predecessors, (402), 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) [2022-02-19 22:55:39,665 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:55:39,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:55:39,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2022-02-19 22:55:39,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:56:47,637 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 26843 transitions and produced 13819 states. [2022-02-19 22:56:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:56:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:56:47,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2022-02-19 22:56:47,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 544 states. [2022-02-19 22:56:47,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-19 22:56:47,838 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 [2022-02-19 22:56:47,839 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:56:47,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:56:47,839 INFO L85 PathProgramCache]: Analyzing trace with hash 199416727, now seen corresponding path program 5 times [2022-02-19 22:56:47,839 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:56:47,839 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100738122] [2022-02-19 22:56:47,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:56:47,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:56:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:57:00,043 INFO L134 CoverageAnalysis]: Checked inductivity of 15821 backedges. 161 proven. 15652 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-19 22:57:00,043 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:57:00,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100738122] [2022-02-19 22:57:00,044 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100738122] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:57:00,044 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8628674] [2022-02-19 22:57:00,044 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 22:57:00,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:57:00,045 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:57:00,046 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) [2022-02-19 22:57:00,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 22:57:00,607 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 95 check-sat command(s) [2022-02-19 22:57:00,607 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:57:00,627 WARN L261 TraceCheckSpWp]: Trace formula consists of 883 conjuncts, 693 conjunts are in the unsatisfiable core [2022-02-19 22:57:00,636 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:57:29,496 INFO L134 CoverageAnalysis]: Checked inductivity of 15821 backedges. 0 proven. 15821 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:57:29,497 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:57:53,640 INFO L134 CoverageAnalysis]: Checked inductivity of 15821 backedges. 0 proven. 15763 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-02-19 22:57:53,641 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8628674] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:57:53,641 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:57:53,641 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [170, 179, 119] total 461 [2022-02-19 22:57:53,641 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065852511] [2022-02-19 22:57:53,641 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:57:53,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 462 states [2022-02-19 22:57:53,642 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:57:53,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 462 interpolants. [2022-02-19 22:57:53,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43142, Invalid=169840, Unknown=0, NotChecked=0, Total=212982 [2022-02-19 22:57:53,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:57:53,662 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:57:53,663 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 462 states, 462 states have (on average 2.153679653679654) internal successors, (995), 461 states have internal predecessors, (995), 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) [2022-02-19 22:57:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:57:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:57:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2022-02-19 22:57:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 544 states. [2022-02-19 22:57:53,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:59:52,914 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11117 transitions and produced 5980 states. [2022-02-19 22:59:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 89 states. [2022-02-19 22:59:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 85 states. [2022-02-19 22:59:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 258 states. [2022-02-19 22:59:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 544 states. [2022-02-19 22:59:52,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 868 states. [2022-02-19 22:59:52,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 22:59:53,119 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 [2022-02-19 22:59:53,120 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:59:53,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:59:53,121 INFO L85 PathProgramCache]: Analyzing trace with hash 1508101941, now seen corresponding path program 6 times [2022-02-19 22:59:53,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:59:53,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332569547] [2022-02-19 22:59:53,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:59:53,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:59:54,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 23:00:07,587 INFO L134 CoverageAnalysis]: Checked inductivity of 52562 backedges. 48344 proven. 3892 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2022-02-19 23:00:07,588 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 23:00:07,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332569547] [2022-02-19 23:00:07,588 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332569547] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 23:00:07,588 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1057995855] [2022-02-19 23:00:07,588 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 23:00:07,588 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 23:00:07,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 23:00:07,589 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) [2022-02-19 23:00:07,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 23:00:08,664 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 222 check-sat command(s) [2022-02-19 23:00:08,664 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 23:00:08,685 WARN L261 TraceCheckSpWp]: Trace formula consists of 1438 conjuncts, 1137 conjunts are in the unsatisfiable core [2022-02-19 23:00:08,694 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 23:01:09,624 INFO L134 CoverageAnalysis]: Checked inductivity of 52562 backedges. 0 proven. 52562 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 23:01:09,624 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 23:01:41,108 INFO L134 CoverageAnalysis]: Checked inductivity of 52562 backedges. 0 proven. 52504 refuted. 0 times theorem prover too weak. 58 trivial. 0 not checked. [2022-02-19 23:01:41,108 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1057995855] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 23:01:41,108 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 23:01:41,109 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [179, 290, 230] total 692 [2022-02-19 23:01:41,109 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913631647] [2022-02-19 23:01:41,109 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 23:01:41,110 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 693 states [2022-02-19 23:01:41,111 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 23:01:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 693 interpolants. [2022-02-19 23:01:41,148 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=169310, Invalid=310246, Unknown=0, NotChecked=0, Total=479556 [2022-02-19 23:01:41,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 23:01:41,148 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 23:01:41,149 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 693 states, 693 states have (on average 2.1587301587301586) internal successors, (1496), 692 states have internal predecessors, (1496), 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) [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 89 states. [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 85 states. [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 258 states. [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 544 states. [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 868 states. [2022-02-19 23:01:41,149 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-02-19 23:07:21,137 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 [2022-02-19 23:07:21,137 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 23:07:21,137 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 [2022-02-19 23:07:21,846 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 23:07:22,035 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 [2022-02-19 23:07:22,036 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1747 known predicates. [2022-02-19 23:07:22,038 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 23:07:22,038 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 23:07:22,039 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 23:07:22,043 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-02-19 23:07:22,045 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 23:07:22,045 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 23:07:22,046 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:07:22 BasicIcfg [2022-02-19 23:07:22,046 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 23:07:22,047 INFO L158 Benchmark]: Toolchain (without parser) took 755548.01ms. Allocated memory was 199.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 163.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-19 23:07:22,047 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 199.2MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 23:07:22,047 INFO L158 Benchmark]: Boogie Procedure Inliner took 22.58ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 162.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:07:22,048 INFO L158 Benchmark]: Boogie Preprocessor took 10.81ms. Allocated memory is still 199.2MB. Free memory was 162.2MB in the beginning and 161.4MB in the end (delta: 875.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 23:07:22,048 INFO L158 Benchmark]: RCFGBuilder took 154.84ms. Allocated memory is still 199.2MB. Free memory was 161.4MB in the beginning and 152.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 23:07:22,048 INFO L158 Benchmark]: TraceAbstraction took 755355.55ms. Allocated memory was 199.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 151.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-02-19 23:07:22,049 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 0.10ms. Allocated memory is still 199.2MB. Free memory is still 165.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 22.58ms. Allocated memory is still 199.2MB. Free memory was 163.7MB in the beginning and 162.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.81ms. Allocated memory is still 199.2MB. Free memory was 162.2MB in the beginning and 161.4MB in the end (delta: 875.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 154.84ms. Allocated memory is still 199.2MB. Free memory was 161.4MB in the beginning and 152.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 755355.55ms. Allocated memory was 199.2MB in the beginning and 2.9GB in the end (delta: 2.7GB). Free memory was 151.9MB in the beginning and 1.7GB in the end (delta: -1.6GB). Peak memory consumption was 1.1GB. 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1747 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1747 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1747 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 755.3s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 555.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 2903, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 195.1s InterpolantComputationTime, 2500 NumberOfCodeBlocks, 2500 NumberOfCodeBlocksAsserted, 345 NumberOfCheckSat, 3732 ConstructedInterpolants, 0 QuantifiedInterpolants, 70809 SizeOfPredicates, 54 NumberOfNonLiveVariables, 3068 ConjunctsInSsa, 2374 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 49163/214578 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