/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 [2022-03-04 11:40:36,211 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:40:36,212 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:40:36,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 11:40:36,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:40:36,296 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:40:36,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:40:36,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:40:36,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:40:36,298 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:40:36,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:40:36,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:40:36,300 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:40:36,301 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:40:36,302 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:40:36,302 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:40:36,304 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:40:36,308 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:40:36,309 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:40:36,309 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:40:36,310 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 [2022-03-04 11:40:36,326 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:40:36,326 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:40:36,327 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:40:36,327 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:40:36,327 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:40:36,327 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:40:36,328 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:40:36,328 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:40:36,328 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:40:36,328 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:40:36,328 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:40:36,328 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:40:36,328 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:40:36,329 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:40:36,329 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:40:36,330 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:40:36,330 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:40:36,331 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:40:36,331 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:40:36,331 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:40:36,332 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:40:36,333 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:40:36,333 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:40:36,333 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:40:36,514 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:40:36,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:40:36,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:40:36,532 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:40:36,534 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:40:36,535 INFO L432 ainManager$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 [2022-03-04 11:40:36,535 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/counter-queue.wvr.bpl' [2022-03-04 11:40:36,554 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:40:36,555 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:40:36,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:40:36,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:40:36,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:40:36,566 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 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,571 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 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,575 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:40:36,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:40:36,581 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:40:36,582 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:40:36,582 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:40:36,587 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,587 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,587 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,587 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,589 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,591 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:40:36,592 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:40:36,592 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:40:36,592 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:40:36,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/1) ... [2022-03-04 11:40:36,598 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:40:36,603 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:36,613 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) [2022-03-04 11:40:36,618 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 [2022-03-04 11:40:36,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:40:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:40:36,637 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:40:36,637 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:40:36,637 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:40:36,638 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:40:36,638 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:40:36,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:40:36,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:40:36,639 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:40:36,670 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:40:36,671 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:40:36,724 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:40:36,732 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:40:36,733 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:40:36,734 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:40:36 BoogieIcfgContainer [2022-03-04 11:40:36,734 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:40:36,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:40:36,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:40:36,769 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:40:36,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:40:36" (1/2) ... [2022-03-04 11:40:36,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b65f27f and model type counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:40:36, skipping insertion in model container [2022-03-04 11:40:36,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:40:36" (2/2) ... [2022-03-04 11:40:36,771 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-queue.wvr.bpl [2022-03-04 11:40:36,774 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:40:36,774 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:40:36,774 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:40:36,774 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:40:36,806 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-04 11:40:36,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:40:36,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:36,837 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) [2022-03-04 11:40:36,850 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 [2022-03-04 11:40:36,869 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:40:36,879 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 [2022-03-04 11:40:36,879 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-04 11:40:36,988 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 122 transitions and produced 109 states. [2022-03-04 11:40:36,990 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:40:36,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:40:36,994 INFO L85 PathProgramCache]: Analyzing trace with hash 736035178, now seen corresponding path program 1 times [2022-03-04 11:40:37,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:40:37,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1765200218] [2022-03-04 11:40:37,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:40:37,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:40:37,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:40:37,555 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 121 proven. 44 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 11:40:37,555 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:40:37,555 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1765200218] [2022-03-04 11:40:37,556 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1765200218] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:40:37,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [139984665] [2022-03-04 11:40:37,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:40:37,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:40:37,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:37,560 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) [2022-03-04 11:40:37,561 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:40:37,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:40:37,652 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-04 11:40:37,657 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:40:38,308 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 34 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:38,309 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:40:38,832 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 40 proven. 129 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:38,832 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [139984665] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:40:38,832 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:40:38,832 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 21, 21] total 57 [2022-03-04 11:40:38,834 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759704136] [2022-03-04 11:40:38,835 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:40:38,838 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 58 states [2022-03-04 11:40:38,838 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:40:38,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 58 interpolants. [2022-03-04 11:40:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=821, Invalid=2485, Unknown=0, NotChecked=0, Total=3306 [2022-03-04 11:40:38,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:38,864 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:40:38,865 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) [2022-03-04 11:40:38,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:40,103 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 185 transitions and produced 157 states. [2022-03-04 11:40:40,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 11:40:40,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 11:40:40,304 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 [2022-03-04 11:40:40,305 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:40:40,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:40:40,305 INFO L85 PathProgramCache]: Analyzing trace with hash 74286880, now seen corresponding path program 2 times [2022-03-04 11:40:40,306 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:40:40,306 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984502588] [2022-03-04 11:40:40,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:40:40,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:40:40,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:40:40,748 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 256 proven. 144 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:40,748 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:40:40,748 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984502588] [2022-03-04 11:40:40,749 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984502588] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:40:40,749 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [377187590] [2022-03-04 11:40:40,749 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:40:40,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:40:40,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:40,750 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) [2022-03-04 11:40:40,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:40:40,789 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:40:40,789 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:40:40,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-04 11:40:40,793 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:40:41,731 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:40:41,731 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:40:42,222 INFO L134 CoverageAnalysis]: Checked inductivity of 400 backedges. 244 proven. 144 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:40:42,223 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [377187590] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:40:42,223 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:40:42,223 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 29, 29] total 72 [2022-03-04 11:40:42,223 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348482079] [2022-03-04 11:40:42,223 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:40:42,224 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-03-04 11:40:42,224 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:40:42,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-03-04 11:40:42,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1231, Invalid=4025, Unknown=0, NotChecked=0, Total=5256 [2022-03-04 11:40:42,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:42,227 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:40:42,227 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) [2022-03-04 11:40:42,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 11:40:42,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:43,455 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 367 transitions and produced 300 states. [2022-03-04 11:40:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:40:43,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:40:43,489 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:40:43,672 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 [2022-03-04 11:40:43,673 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:40:43,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:40:43,674 INFO L85 PathProgramCache]: Analyzing trace with hash 419501714, now seen corresponding path program 3 times [2022-03-04 11:40:43,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:40:43,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439488604] [2022-03-04 11:40:43,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:40:43,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:40:43,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:40:44,788 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 1468 proven. 441 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:40:44,788 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:40:44,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439488604] [2022-03-04 11:40:44,788 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439488604] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:40:44,788 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494315160] [2022-03-04 11:40:44,788 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:40:44,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:40:44,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:44,790 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) [2022-03-04 11:40:44,804 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:40:44,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 37 check-sat command(s) [2022-03-04 11:40:44,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:40:44,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 323 conjuncts, 63 conjunts are in the unsatisfiable core [2022-03-04 11:40:44,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:40:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 291 proven. 1630 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:47,439 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:40:49,882 INFO L134 CoverageAnalysis]: Checked inductivity of 1921 backedges. 297 proven. 1624 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:49,882 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494315160] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:40:49,882 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:40:49,882 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [52, 63, 63] total 175 [2022-03-04 11:40:49,882 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395910173] [2022-03-04 11:40:49,883 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:40:49,883 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 176 states [2022-03-04 11:40:49,883 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:40:49,885 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 176 interpolants. [2022-03-04 11:40:49,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6937, Invalid=23863, Unknown=0, NotChecked=0, Total=30800 [2022-03-04 11:40:49,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:49,890 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:40:49,891 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) [2022-03-04 11:40:49,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:40:49,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:40:49,891 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:57,043 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 406 states. [2022-03-04 11:40:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:40:57,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:40:57,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2022-03-04 11:40:57,065 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 11:40:57,256 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 [2022-03-04 11:40:57,257 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:40:57,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:40:57,257 INFO L85 PathProgramCache]: Analyzing trace with hash 1891879308, now seen corresponding path program 4 times [2022-03-04 11:40:57,257 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:40:57,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060844628] [2022-03-04 11:40:57,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:40:57,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:40:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:40:59,378 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1849 proven. 1521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:40:59,379 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:40:59,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060844628] [2022-03-04 11:40:59,380 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060844628] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:40:59,380 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842540368] [2022-03-04 11:40:59,380 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:40:59,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:40:59,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:40:59,381 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) [2022-03-04 11:40:59,382 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:40:59,445 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:40:59,445 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:40:59,448 INFO L263 TraceCheckSpWp]: Trace formula consists of 438 conjuncts, 83 conjunts are in the unsatisfiable core [2022-03-04 11:40:59,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:41:04,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1837 proven. 1521 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:41:04,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:41:07,286 INFO L134 CoverageAnalysis]: Checked inductivity of 3370 backedges. 1837 proven. 1521 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:41:07,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842540368] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:41:07,286 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:41:07,287 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [86, 83, 83] total 207 [2022-03-04 11:41:07,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487011036] [2022-03-04 11:41:07,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:41:07,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 208 states [2022-03-04 11:41:07,288 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:41:07,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 208 interpolants. [2022-03-04 11:41:07,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10222, Invalid=32834, Unknown=0, NotChecked=0, Total=43056 [2022-03-04 11:41:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:41:07,295 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:41:07,295 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) [2022-03-04 11:41:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:41:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:41:07,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2022-03-04 11:41:07,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:41:14,545 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1106 transitions and produced 863 states. [2022-03-04 11:41:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:41:14,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:41:14,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 11:41:14,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-04 11:41:14,564 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 11:41:14,748 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 [2022-03-04 11:41:14,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:41:14,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:41:14,749 INFO L85 PathProgramCache]: Analyzing trace with hash -689877736, now seen corresponding path program 5 times [2022-03-04 11:41:14,749 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:41:14,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667333678] [2022-03-04 11:41:14,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:41:14,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:41:14,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:41:21,684 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 16024 proven. 3174 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-03-04 11:41:21,684 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:41:21,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667333678] [2022-03-04 11:41:21,684 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667333678] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:41:21,684 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [960544630] [2022-03-04 11:41:21,684 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:41:21,685 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:41:21,685 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:41:21,686 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) [2022-03-04 11:41:21,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 11:41:22,416 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 111 check-sat command(s) [2022-03-04 11:41:22,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:41:22,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 948 conjuncts, 188 conjunts are in the unsatisfiable core [2022-03-04 11:41:22,432 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:41:39,786 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 2010 proven. 17230 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:41:39,786 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:41:57,528 INFO L134 CoverageAnalysis]: Checked inductivity of 19240 backedges. 2016 proven. 17224 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:41:57,528 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [960544630] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:41:57,528 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:41:57,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [147, 188, 188] total 520 [2022-03-04 11:41:57,529 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103525212] [2022-03-04 11:41:57,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:41:57,530 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 521 states [2022-03-04 11:41:57,530 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:41:57,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 521 interpolants. [2022-03-04 11:41:57,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61517, Invalid=209403, Unknown=0, NotChecked=0, Total=270920 [2022-03-04 11:41:57,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:41:57,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:41:57,550 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) [2022-03-04 11:41:57,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:41:57,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:41:57,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 11:41:57,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-04 11:41:57,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:43:16,997 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1553 transitions and produced 1221 states. [2022-03-04 11:43:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:43:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:43:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 11:43:16,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-04 11:43:16,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 433 states. [2022-03-04 11:43:17,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 11:43:17,198 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 [2022-03-04 11:43:17,201 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:43:17,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:43:17,201 INFO L85 PathProgramCache]: Analyzing trace with hash 2029958888, now seen corresponding path program 6 times [2022-03-04 11:43:17,202 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:43:17,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819980384] [2022-03-04 11:43:17,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:43:17,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:43:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:43:35,707 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:43:35,707 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:43:35,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819980384] [2022-03-04 11:43:35,707 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819980384] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:43:35,707 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128266565] [2022-03-04 11:43:35,707 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 11:43:35,708 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:43:35,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:43:35,709 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) [2022-03-04 11:43:35,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 11:43:37,571 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 131 check-sat command(s) [2022-03-04 11:43:37,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:43:37,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 1308 conjuncts, 260 conjunts are in the unsatisfiable core [2022-03-04 11:43:37,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:44:22,557 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:44:22,558 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:44:46,330 INFO L134 CoverageAnalysis]: Checked inductivity of 32776 backedges. 16900 proven. 15876 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:44:46,330 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128266565] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:44:46,330 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:44:46,330 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [260, 260, 260] total 650 [2022-03-04 11:44:46,331 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082716555] [2022-03-04 11:44:46,331 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:44:46,332 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 651 states [2022-03-04 11:44:46,332 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:44:46,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 651 interpolants. [2022-03-04 11:44:46,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101799, Invalid=321351, Unknown=0, NotChecked=0, Total=423150 [2022-03-04 11:44:46,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:44:46,363 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:44:46,364 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) [2022-03-04 11:44:46,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:44:46,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:44:46,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 196 states. [2022-03-04 11:44:46,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-03-04 11:44:46,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 433 states. [2022-03-04 11:44:46,365 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:45:53,839 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1581 transitions and produced 1239 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 196 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 433 states. [2022-03-04 11:45:53,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 390 states. [2022-03-04 11:45:53,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 11:45:54,055 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 [2022-03-04 11:45:54,056 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-04 11:45:54,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:45:54,056 INFO L85 PathProgramCache]: Analyzing trace with hash -1683563536, now seen corresponding path program 7 times [2022-03-04 11:45:54,056 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:45:54,056 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686313671] [2022-03-04 11:45:54,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:45:54,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:45:55,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:53:19,502 INFO L134 CoverageAnalysis]: Checked inductivity of 33800 backedges. 16129 proven. 17671 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:53:19,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:53:19,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686313671] [2022-03-04 11:53:19,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686313671] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:53:19,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1303908502] [2022-03-04 11:53:19,503 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 11:53:19,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:53:19,503 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:53:19,504 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) [2022-03-04 11:53:19,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 11:53:19,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:53:19,867 WARN L261 TraceCheckSpWp]: Trace formula consists of 1328 conjuncts, 1043 conjunts are in the unsatisfiable core [2022-03-04 11:53:19,876 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2022-03-04 11:53:40,388 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 11:53:40,391 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-04 11:53:40,407 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 [2022-03-04 11:53:40,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 11:53:40,415 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 [2022-03-04 11:53:40,436 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 [2022-03-04 11:53:40,591 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 [2022-03-04 11:53:40,593 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 535 with TraceHistMax 130,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 3ms.. [2022-03-04 11:53:40,595 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-04 11:53:40,595 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-04 11:53:40,599 INFO L732 BasicCegarLoop]: Path program histogram: [7] [2022-03-04 11:53:40,601 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 11:53:40,601 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 11:53:40,602 INFO L202 PluginConnector]: Adding new model counter-queue.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 11:53:40 BasicIcfg [2022-03-04 11:53:40,602 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 11:53:40,603 INFO L158 Benchmark]: Toolchain (without parser) took 784047.61ms. Allocated memory was 170.9MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 135.1MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-03-04 11:53:40,603 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 170.9MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 11:53:40,603 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.20ms. Allocated memory is still 170.9MB. Free memory was 135.0MB in the beginning and 133.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 11:53:40,603 INFO L158 Benchmark]: Boogie Preprocessor took 9.80ms. Allocated memory is still 170.9MB. Free memory was 133.5MB in the beginning and 132.5MB in the end (delta: 970.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 11:53:40,604 INFO L158 Benchmark]: RCFGBuilder took 142.40ms. Allocated memory is still 170.9MB. Free memory was 132.4MB in the beginning and 123.7MB in the end (delta: 8.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 11:53:40,604 INFO L158 Benchmark]: TraceAbstraction took 783867.15ms. Allocated memory was 170.9MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 123.2MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-03-04 11:53:40,605 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 170.9MB. Free memory is still 136.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.20ms. Allocated memory is still 170.9MB. Free memory was 135.0MB in the beginning and 133.5MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.80ms. Allocated memory is still 170.9MB. Free memory was 133.5MB in the beginning and 132.5MB in the end (delta: 970.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 142.40ms. Allocated memory is still 170.9MB. Free memory was 132.4MB in the beginning and 123.7MB in the end (delta: 8.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 783867.15ms. Allocated memory was 170.9MB in the beginning and 4.8GB in the end (delta: 4.7GB). Free memory was 123.2MB in the beginning and 2.6GB in the end (delta: -2.4GB). Peak memory consumption was 2.2GB. 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 SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 3ms.. - 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 SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 3ms.. - 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 SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 3ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 31 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 783.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 163.9s, 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, 3.4s SatisfiabilityAnalysisTime, 148.2s 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