/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-bad/counter-queue.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-02 10:28:16,923 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-02 10:28:16,925 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-02 10:28:16,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-02 10:28:16,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-02 10:28:16,984 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-02 10:28:16,986 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-02 10:28:16,991 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-02 10:28:16,992 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-02 10:28:16,996 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-02 10:28:16,997 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-02 10:28:16,997 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-02 10:28:16,998 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-02 10:28:16,998 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-02 10:28:16,999 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-02 10:28:16,999 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-02 10:28:17,000 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-02 10:28:17,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-02 10:28:17,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-02 10:28:17,002 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-02 10:28:17,003 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-02 10:28:17,005 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-02 10:28:17,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-02 10:28:17,010 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-02 10:28:17,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-02 10:28:17,014 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-02 10:28:17,014 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-02 10:28:17,015 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-02 10:28:17,015 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-02 10:28:17,015 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-02 10:28:17,015 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-02 10:28:17,016 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-02 10:28:17,016 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-02 10:28:17,017 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-02 10:28:17,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-02 10:28:17,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-02 10:28:17,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-02 10:28:17,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-02 10:28:17,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-02 10:28:17,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-02 10:28:17,019 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-02 10:28:17,022 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 10:28:17,046 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-02 10:28:17,046 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-02 10:28:17,046 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-02 10:28:17,046 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-02 10:28:17,047 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-02 10:28:17,047 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-02 10:28:17,047 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-02 10:28:17,047 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-02 10:28:17,047 INFO L138 SettingsManager]: * Use SBE=true [2022-03-02 10:28:17,048 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-02 10:28:17,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-02 10:28:17,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:28:17,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-02 10:28:17,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-02 10:28:17,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-02 10:28:17,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-02 10:28:17,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-02 10:28:17,050 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-02 10:28:17,050 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-02 10:28:17,216 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-02 10:28:17,234 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-02 10:28:17,236 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-02 10:28:17,236 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-02 10:28:17,237 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-02 10:28:17,238 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl [2022-03-02 10:28:17,238 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2022-03-02 10:28:17,255 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-02 10:28:17,255 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-02 10:28:17,256 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-02 10:28:17,256 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-02 10:28:17,256 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-02 10:28:17,264 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,272 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-02 10:28:17,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-02 10:28:17,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-02 10:28:17,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-02 10:28:17,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-02 10:28:17,278 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,278 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,279 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,282 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-02 10:28:17,283 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-02 10:28:17,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-02 10:28:17,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-02 10:28:17,284 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/1) ... [2022-03-02 10:28:17,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-02 10:28:17,294 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:17,332 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 10:28:17,340 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 10:28:17,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-02 10:28:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-02 10:28:17,363 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-02 10:28:17,363 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-02 10:28:17,363 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-02 10:28:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-02 10:28:17,364 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-02 10:28:17,364 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-02 10:28:17,364 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-02 10:28:17,365 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 10:28:17,398 INFO L234 CfgBuilder]: Building ICFG [2022-03-02 10:28:17,399 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-02 10:28:17,457 INFO L275 CfgBuilder]: Performing block encoding [2022-03-02 10:28:17,465 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-02 10:28:17,466 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-02 10:28:17,467 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:28:17 BoogieIcfgContainer [2022-03-02 10:28:17,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-02 10:28:17,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-02 10:28:17,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-02 10:28:17,470 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-02 10:28:17,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 02.03 10:28:17" (1/2) ... [2022-03-02 10:28:17,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dbcb5 and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.03 10:28:17, skipping insertion in model container [2022-03-02 10:28:17,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.03 10:28:17" (2/2) ... [2022-03-02 10:28:17,472 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2022-03-02 10:28:17,475 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-02 10:28:17,475 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-02 10:28:17,475 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-02 10:28:17,475 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-02 10:28:17,493 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-02 10:28:17,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-02 10:28:17,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:17,528 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 10:28:17,553 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 10:28:17,569 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-02 10:28:17,579 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 10:28:17,579 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-02 10:28:17,692 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 122 transitions and produced 109 states. [2022-03-02 10:28:17,693 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:28:17,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:28:17,699 INFO L85 PathProgramCache]: Analyzing trace with hash 736035178, now seen corresponding path program 1 times [2022-03-02 10:28:17,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:28:17,705 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [190314306] [2022-03-02 10:28:17,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:17,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:28:17,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:28:18,333 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 121 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-02 10:28:18,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:28:18,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [190314306] [2022-03-02 10:28:18,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [190314306] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:28:18,335 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2033799248] [2022-03-02 10:28:18,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:18,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:28:18,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:18,352 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 10:28:18,353 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 10:28:18,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:28:18,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-02 10:28:18,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:28:19,070 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 34 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:19,070 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:28:19,599 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 40 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:19,600 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2033799248] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:28:19,600 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:28:19,600 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 21] total 57 [2022-03-02 10:28:19,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873366722] [2022-03-02 10:28:19,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:28:19,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-02 10:28:19,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:28:19,618 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-02 10:28:19,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=821, Invalid=2485, Unknown=0, NotChecked=0, Total=3306 [2022-03-02 10:28:19,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:19,622 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:28:19,622 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 58 states, 58 states have (on average 2.206896551724138) internal successors, (128), 57 states have internal predecessors, (128), 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 10:28:19,623 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:20,805 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 157 states. [2022-03-02 10:28:20,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-02 10:28:20,837 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-02 10:28:21,015 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 10:28:21,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:28:21,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:28:21,016 INFO L85 PathProgramCache]: Analyzing trace with hash 74286880, now seen corresponding path program 2 times [2022-03-02 10:28:21,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:28:21,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [479160785] [2022-03-02 10:28:21,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:21,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:28:21,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:28:21,392 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 256 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:21,393 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:28:21,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [479160785] [2022-03-02 10:28:21,393 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [479160785] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:28:21,393 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1220901694] [2022-03-02 10:28:21,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-02 10:28:21,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:28:21,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:21,394 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 10:28:21,443 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 10:28:21,488 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-02 10:28:21,489 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:28:21,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-02 10:28:21,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:28:22,411 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 10:28:22,411 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:28:22,796 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 10:28:22,796 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1220901694] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:28:22,796 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:28:22,796 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 29] total 72 [2022-03-02 10:28:22,796 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824512381] [2022-03-02 10:28:22,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:28:22,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-02 10:28:22,797 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:28:22,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-02 10:28:22,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=4025, Unknown=0, NotChecked=0, Total=5256 [2022-03-02 10:28:22,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:22,800 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:28:22,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 2.136986301369863) internal successors, (156), 72 states have internal predecessors, (156), 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 10:28:22,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-02 10:28:22,800 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:24,021 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 367 transitions and produced 300 states. [2022-03-02 10:28:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:28:24,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:28:24,053 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-02 10:28:24,229 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 10:28:24,230 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:28:24,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:28:24,230 INFO L85 PathProgramCache]: Analyzing trace with hash 419501714, now seen corresponding path program 3 times [2022-03-02 10:28:24,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:28:24,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656558413] [2022-03-02 10:28:24,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:24,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:28:24,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:28:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1468 proven. 441 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 10:28:25,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:28:25,358 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656558413] [2022-03-02 10:28:25,358 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656558413] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:28:25,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1125152347] [2022-03-02 10:28:25,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-02 10:28:25,359 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:28:25,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:25,365 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 10:28:25,366 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 10:28:25,467 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 37 check-sat command(s) [2022-03-02 10:28:25,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:28:25,469 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-02 10:28:25,472 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:28:27,879 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 291 proven. 1630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:27,880 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:28:30,082 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 297 proven. 1624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:30,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1125152347] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:28:30,083 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:28:30,083 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 63, 63] total 175 [2022-03-02 10:28:30,083 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530578418] [2022-03-02 10:28:30,083 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:28:30,084 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 176 states [2022-03-02 10:28:30,084 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:28:30,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2022-03-02 10:28:30,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6937, Invalid=23863, Unknown=0, NotChecked=0, Total=30800 [2022-03-02 10:28:30,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:30,109 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:28:30,111 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 176 states, 176 states have (on average 2.125) internal successors, (374), 175 states have internal predecessors, (374), 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 10:28:30,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:28:30,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:28:30,111 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:37,108 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 406 states. [2022-03-02 10:28:37,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:28:37,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:28:37,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-02 10:28:37,136 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 10:28:37,331 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 10:28:37,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:28:37,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:28:37,332 INFO L85 PathProgramCache]: Analyzing trace with hash 1891879308, now seen corresponding path program 4 times [2022-03-02 10:28:37,332 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:28:37,332 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [86138785] [2022-03-02 10:28:37,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:37,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:28:37,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:28:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1849 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:28:39,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:28:39,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [86138785] [2022-03-02 10:28:39,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [86138785] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:28:39,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [119352959] [2022-03-02 10:28:39,624 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-02 10:28:39,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:28:39,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:28:39,644 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 10:28:39,645 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 10:28:39,714 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-02 10:28:39,714 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:28:39,716 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 83 conjunts are in the unsatisfiable core [2022-03-02 10:28:39,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:28:44,913 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1837 proven. 1521 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 10:28:44,914 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:28:47,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1837 proven. 1521 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-02 10:28:47,242 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [119352959] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:28:47,242 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:28:47,242 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 83, 83] total 207 [2022-03-02 10:28:47,242 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103178814] [2022-03-02 10:28:47,242 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:28:47,243 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2022-03-02 10:28:47,243 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:28:47,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2022-03-02 10:28:47,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10222, Invalid=32834, Unknown=0, NotChecked=0, Total=43056 [2022-03-02 10:28:47,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:47,250 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:28:47,250 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 208 states, 208 states have (on average 2.048076923076923) internal successors, (426), 207 states have internal predecessors, (426), 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 10:28:47,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:28:47,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:28:47,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2022-03-02 10:28:47,250 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:28:53,984 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1106 transitions and produced 863 states. [2022-03-02 10:28:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:28:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:28:53,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 10:28:53,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 10:28:54,003 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-02 10:28:54,201 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 10:28:54,201 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:28:54,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:28:54,202 INFO L85 PathProgramCache]: Analyzing trace with hash -689877736, now seen corresponding path program 5 times [2022-03-02 10:28:54,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:28:54,202 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [905351939] [2022-03-02 10:28:54,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:28:54,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:28:54,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:29:00,700 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 16024 proven. 3174 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-03-02 10:29:00,700 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:29:00,700 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [905351939] [2022-03-02 10:29:00,700 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [905351939] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:29:00,704 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1367260748] [2022-03-02 10:29:00,705 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-02 10:29:00,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:29:00,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:29:00,707 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 10:29:00,708 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 10:29:01,442 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 111 check-sat command(s) [2022-03-02 10:29:01,442 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:29:01,450 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 188 conjunts are in the unsatisfiable core [2022-03-02 10:29:01,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:29:15,687 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 2010 proven. 17230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:29:15,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:29:32,026 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 2016 proven. 17224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:29:32,026 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1367260748] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:29:32,026 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:29:32,026 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [147, 188, 188] total 520 [2022-03-02 10:29:32,026 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258602927] [2022-03-02 10:29:32,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:29:32,027 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 521 states [2022-03-02 10:29:32,028 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:29:32,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 521 interpolants. [2022-03-02 10:29:32,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61517, Invalid=209403, Unknown=0, NotChecked=0, Total=270920 [2022-03-02 10:29:32,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:29:32,078 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:29:32,079 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 521 states, 521 states have (on average 2.0998080614203456) internal successors, (1094), 520 states have internal predecessors, (1094), 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 10:29:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:29:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:29:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 10:29:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 10:29:32,079 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:30:43,360 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1553 transitions and produced 1221 states. [2022-03-02 10:30:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:30:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:30:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 10:30:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 10:30:43,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 433 states. [2022-03-02 10:30:43,378 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-02 10:30:43,575 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 10:30:43,575 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:30:43,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:30:43,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2029958888, now seen corresponding path program 6 times [2022-03-02 10:30:43,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:30:43,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638136446] [2022-03-02 10:30:43,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:30:43,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:30:44,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:30:56,189 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:30:56,189 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:30:56,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638136446] [2022-03-02 10:30:56,190 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638136446] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:30:56,190 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [604040784] [2022-03-02 10:30:56,190 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-02 10:30:56,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:30:56,190 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:30:56,191 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 10:30:56,192 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 10:30:57,830 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 131 check-sat command(s) [2022-03-02 10:30:57,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-02 10:30:57,852 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 260 conjunts are in the unsatisfiable core [2022-03-02 10:30:57,859 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-02 10:31:34,602 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:31:34,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-02 10:31:52,718 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:31:52,719 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [604040784] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-02 10:31:52,719 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-02 10:31:52,719 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [260, 260, 260] total 650 [2022-03-02 10:31:52,719 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768258326] [2022-03-02 10:31:52,719 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-02 10:31:52,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 651 states [2022-03-02 10:31:52,720 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-02 10:31:52,734 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 651 interpolants. [2022-03-02 10:31:52,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101799, Invalid=321351, Unknown=0, NotChecked=0, Total=423150 [2022-03-02 10:31:52,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:31:52,755 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-02 10:31:52,756 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 651 states, 651 states have (on average 2.0153609831029184) internal successors, (1312), 650 states have internal predecessors, (1312), 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 10:31:52,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:31:52,756 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:31:52,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-02 10:31:52,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-02 10:31:52,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 433 states. [2022-03-02 10:31:52,757 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-02 10:32:59,382 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1581 transitions and produced 1239 states. [2022-03-02 10:32:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-02 10:32:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-02 10:32:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-02 10:32:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-02 10:32:59,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 433 states. [2022-03-02 10:32:59,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 390 states. [2022-03-02 10:32:59,423 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 10:32:59,614 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 10:32:59,614 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-02 10:32:59,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-02 10:32:59,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1683563536, now seen corresponding path program 7 times [2022-03-02 10:32:59,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-02 10:32:59,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77753696] [2022-03-02 10:32:59,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-02 10:32:59,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-02 10:33:01,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:40:06,225 INFO L134 CoverageAnalysis]: Checked inductivity of 33800 backedges. 16129 proven. 17671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-02 10:40:06,225 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-02 10:40:06,225 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77753696] [2022-03-02 10:40:06,225 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77753696] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-02 10:40:06,226 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [368632395] [2022-03-02 10:40:06,226 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-02 10:40:06,227 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-02 10:40:06,227 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-02 10:40:06,248 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 10:40:06,250 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 10:40:06,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-02 10:40:06,653 WARN L261 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 1043 conjunts are in the unsatisfiable core [2022-03-02 10:40:06,664 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-02 10:42:30,894 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-02 10:42:30,895 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-02 10:42:30,896 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 10:42:30,899 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 10:42:30,916 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 10:42:31,094 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 10:42:31,095 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 535 with TraceHistMax 130,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 383 known predicates. [2022-03-02 10:42:31,100 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-02 10:42:31,100 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-02 10:42:31,105 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-02 10:42:31,106 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-02 10:42:31,106 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-02 10:42:31,107 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.03 10:42:31 BasicIcfg [2022-03-02 10:42:31,107 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-02 10:42:31,108 INFO L158 Benchmark]: Toolchain (without parser) took 853852.38ms. Allocated memory was 228.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 189.2MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-02 10:42:31,108 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 228.6MB. Free memory is still 190.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-02 10:42:31,108 INFO L158 Benchmark]: Boogie Procedure Inliner took 16.63ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 187.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:42:31,108 INFO L158 Benchmark]: Boogie Preprocessor took 9.62ms. Allocated memory is still 228.6MB. Free memory was 187.5MB in the beginning and 186.6MB in the end (delta: 947.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-02 10:42:31,109 INFO L158 Benchmark]: RCFGBuilder took 183.55ms. Allocated memory is still 228.6MB. Free memory was 186.5MB in the beginning and 177.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-02 10:42:31,109 INFO L158 Benchmark]: TraceAbstraction took 853639.41ms. Allocated memory was 228.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 177.3MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-03-02 10:42:31,110 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 228.6MB. Free memory is still 190.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 16.63ms. Allocated memory is still 228.6MB. Free memory was 189.1MB in the beginning and 187.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.62ms. Allocated memory is still 228.6MB. Free memory was 187.5MB in the beginning and 186.6MB in the end (delta: 947.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 183.55ms. Allocated memory is still 228.6MB. Free memory was 186.5MB in the beginning and 177.8MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 853639.41ms. Allocated memory was 228.6MB in the beginning and 5.6GB in the end (delta: 5.3GB). Free memory was 177.3MB in the beginning and 3.4GB in the end (delta: -3.2GB). Peak memory consumption was 2.1GB. 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 PartialOrderCegarLoop was analyzing trace of length 535 with TraceHistMax 130,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 383 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 PartialOrderCegarLoop was analyzing trace of length 535 with TraceHistMax 130,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 383 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 PartialOrderCegarLoop was analyzing trace of length 535 with TraceHistMax 130,while TraceCheckSpWp was constructing forward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 383 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 853.6s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 154.2s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1252, 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, 3.2s SatisfiabilityAnalysisTime, 122.7s InterpolantComputationTime, 2672 NumberOfCodeBlocks, 2672 NumberOfCodeBlocksAsserted, 289 NumberOfCheckSat, 3990 ConstructedInterpolants, 0 QuantifiedInterpolants, 35180 SizeOfPredicates, 42 NumberOfNonLiveVariables, 3298 ConjunctsInSsa, 644 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 79374/173628 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