/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 11:26:21,590 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 11:26:21,592 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 11:26:21,658 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 11:26:21,658 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 11:26:21,661 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 11:26:21,663 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 11:26:21,666 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 11:26:21,667 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 11:26:21,672 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 11:26:21,672 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 11:26:21,674 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 11:26:21,674 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 11:26:21,676 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 11:26:21,677 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 11:26:21,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 11:26:21,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 11:26:21,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 11:26:21,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 11:26:21,688 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 11:26:21,690 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 11:26:21,691 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 11:26:21,692 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 11:26:21,693 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 11:26:21,698 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 11:26:21,707 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 11:26:21,707 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 11:26:21,708 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 11:26:21,709 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-03-16 11:26:21,741 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 11:26:21,742 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 11:26:21,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 11:26:21,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 11:26:21,743 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 11:26:21,743 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 11:26:21,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 11:26:21,743 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 11:26:21,744 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 11:26:21,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 11:26:21,744 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 11:26:21,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 11:26:21,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 11:26:21,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:26:21,747 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 11:26:21,747 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 11:26:21,747 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 11:26:21,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 11:26:21,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 11:26:21,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 11:26:21,748 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 11:26:21,748 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 11:26:21,748 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 11:26:21,748 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 11:26:21,748 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 11:26:21,748 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 11:26:21,965 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 11:26:21,983 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 11:26:21,985 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 11:26:21,986 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 11:26:21,988 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 11:26:21,989 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2022-03-16 11:26:21,989 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2022-03-16 11:26:22,023 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 11:26:22,024 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 11:26:22,025 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 11:26:22,025 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 11:26:22,025 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 11:26:22,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,048 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 11:26:22,050 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 11:26:22,051 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 11:26:22,052 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 11:26:22,052 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 11:26:22,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,060 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,060 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,066 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 11:26:22,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 11:26:22,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 11:26:22,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 11:26:22,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/1) ... [2022-03-16 11:26:22,078 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 11:26:22,088 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:26:22,105 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) [2022-03-16 11:26:22,128 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 [2022-03-16 11:26:22,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 11:26:22,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 11:26:22,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 11:26:22,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 11:26:22,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 11:26:22,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 11:26:22,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 11:26:22,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 11:26:22,149 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 11:26:22,150 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 11:26:22,150 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 11:26:22,151 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 11:26:22,152 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 11:26:22,191 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 11:26:22,195 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 11:26:22,326 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 11:26:22,364 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 11:26:22,364 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 11:26:22,366 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:26:22 BoogieIcfgContainer [2022-03-16 11:26:22,366 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 11:26:22,367 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 11:26:22,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 11:26:22,386 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 11:26:22,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:26:22" (1/2) ... [2022-03-16 11:26:22,387 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51b16159 and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:26:22, skipping insertion in model container [2022-03-16 11:26:22,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:26:22" (2/2) ... [2022-03-16 11:26:22,388 INFO L111 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2022-03-16 11:26:22,394 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 11:26:22,394 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 11:26:22,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 11:26:22,395 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 11:26:22,441 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 11:26:22,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 11:26:22,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:26:22,540 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) [2022-03-16 11:26:22,574 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 [2022-03-16 11:26:22,592 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 11:26:22,601 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=false, mMcrOverapproximateWrwc=true [2022-03-16 11:26:22,602 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 11:26:22,733 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 662 transitions and produced 472 states. [2022-03-16 11:26:22,734 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:26:22,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:26:22,742 INFO L85 PathProgramCache]: Analyzing trace with hash -737186067, now seen corresponding path program 1 times [2022-03-16 11:26:22,750 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:26:22,751 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876487711] [2022-03-16 11:26:22,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:26:22,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:26:22,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:26:23,094 INFO L134 CoverageAnalysis]: Checked inductivity of 935 backedges. 141 proven. 0 refuted. 0 times theorem prover too weak. 794 trivial. 0 not checked. [2022-03-16 11:26:23,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:26:23,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876487711] [2022-03-16 11:26:23,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876487711] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 11:26:23,096 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 11:26:23,096 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 11:26:23,097 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230116878] [2022-03-16 11:26:23,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 11:26:23,135 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 11:26:23,136 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:26:23,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 11:26:23,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 11:26:23,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:26:23,165 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:26:23,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.333333333333334) internal successors, (34), 3 states have internal predecessors, (34), 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) [2022-03-16 11:26:23,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:26:23,241 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 535 transitions and produced 413 states. [2022-03-16 11:26:23,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:26:23,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-16 11:26:23,242 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:26:23,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:26:23,243 INFO L85 PathProgramCache]: Analyzing trace with hash -536135430, now seen corresponding path program 2 times [2022-03-16 11:26:23,243 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:26:23,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1261735699] [2022-03-16 11:26:23,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:26:23,244 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:26:23,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:26:28,664 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 31 proven. 592 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2022-03-16 11:26:28,664 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:26:28,664 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1261735699] [2022-03-16 11:26:28,664 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1261735699] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:26:28,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1807431874] [2022-03-16 11:26:28,665 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 11:26:28,665 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:26:28,665 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:26:28,671 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) [2022-03-16 11:26:28,672 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 11:26:28,768 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 11:26:28,769 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:26:28,772 INFO L263 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 69 conjunts are in the unsatisfiable core [2022-03-16 11:26:28,781 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:31:04,079 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 794 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:31:04,079 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:31:51,656 INFO L134 CoverageAnalysis]: Checked inductivity of 794 backedges. 0 proven. 794 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 11:31:51,657 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1807431874] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:31:51,657 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:31:51,657 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 56, 56] total 132 [2022-03-16 11:31:51,658 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744544008] [2022-03-16 11:31:51,658 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:31:51,659 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 133 states [2022-03-16 11:31:51,659 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:31:51,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 133 interpolants. [2022-03-16 11:31:51,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2015, Invalid=15541, Unknown=0, NotChecked=0, Total=17556 [2022-03-16 11:31:51,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:31:51,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:31:51,669 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 133 states, 133 states have (on average 1.9774436090225564) internal successors, (263), 132 states have internal predecessors, (263), 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) [2022-03-16 11:31:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:31:51,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:33:00,662 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 971 transitions and produced 642 states. [2022-03-16 11:33:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:33:00,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:33:00,680 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-16 11:33:00,863 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,SelfDestructingSolverStorable1 [2022-03-16 11:33:00,864 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:33:00,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:33:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1269821963, now seen corresponding path program 3 times [2022-03-16 11:33:00,865 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:33:00,865 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343970548] [2022-03-16 11:33:00,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:33:00,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:33:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:35:59,453 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 496 proven. 882 refuted. 0 times theorem prover too weak. 446 trivial. 0 not checked. [2022-03-16 11:35:59,454 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:35:59,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343970548] [2022-03-16 11:35:59,454 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343970548] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:35:59,454 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1520307908] [2022-03-16 11:35:59,454 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 11:35:59,455 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:35:59,455 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:35:59,458 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) [2022-03-16 11:35:59,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 11:35:59,577 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2022-03-16 11:35:59,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:35:59,580 INFO L263 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 75 conjunts are in the unsatisfiable core [2022-03-16 11:35:59,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:36:01,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 181 proven. 1228 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2022-03-16 11:36:01,760 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:36:03,853 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1686 proven. 94 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-16 11:36:03,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1520307908] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:36:03,854 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:36:03,854 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 21, 37] total 62 [2022-03-16 11:36:03,854 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [230901529] [2022-03-16 11:36:03,854 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:36:03,855 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-03-16 11:36:03,855 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:36:03,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-03-16 11:36:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1297, Invalid=2485, Unknown=0, NotChecked=0, Total=3782 [2022-03-16 11:36:03,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:03,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:36:03,858 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 3.4516129032258065) internal successors, (214), 62 states have internal predecessors, (214), 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) [2022-03-16 11:36:03,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:03,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:36:03,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:04,785 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 521 transitions and produced 429 states. [2022-03-16 11:36:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:04,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:36:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:36:04,802 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 11:36:04,986 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:36:04,987 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:36:04,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:36:04,987 INFO L85 PathProgramCache]: Analyzing trace with hash 836857450, now seen corresponding path program 4 times [2022-03-16 11:36:04,987 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:36:04,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1915775453] [2022-03-16 11:36:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:36:04,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:36:05,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:36:05,035 INFO L134 CoverageAnalysis]: Checked inductivity of 1344 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 810 trivial. 0 not checked. [2022-03-16 11:36:05,035 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:36:05,036 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1915775453] [2022-03-16 11:36:05,036 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1915775453] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-16 11:36:05,036 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-16 11:36:05,036 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-16 11:36:05,036 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98785479] [2022-03-16 11:36:05,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-16 11:36:05,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-16 11:36:05,037 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:36:05,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-16 11:36:05,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-16 11:36:05,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:05,038 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:36:05,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 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) [2022-03-16 11:36:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-03-16 11:36:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-03-16 11:36:05,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:07,080 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 650 transitions and produced 520 states. [2022-03-16 11:36:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2022-03-16 11:36:07,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 11:36:07,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:07,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-16 11:36:07,081 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:36:07,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:36:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash -778473826, now seen corresponding path program 5 times [2022-03-16 11:36:07,082 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:36:07,082 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122218183] [2022-03-16 11:36:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:36:07,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:36:07,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:36:08,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 373 proven. 1128 refuted. 0 times theorem prover too weak. 515 trivial. 0 not checked. [2022-03-16 11:36:08,384 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:36:08,384 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122218183] [2022-03-16 11:36:08,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122218183] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:36:08,385 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474579256] [2022-03-16 11:36:08,385 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 11:36:08,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:36:08,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:36:08,386 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) [2022-03-16 11:36:08,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 11:36:08,506 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 33 check-sat command(s) [2022-03-16 11:36:08,506 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:36:08,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 79 conjunts are in the unsatisfiable core [2022-03-16 11:36:08,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:36:10,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 1075 proven. 178 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2022-03-16 11:36:10,512 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:36:15,576 INFO L134 CoverageAnalysis]: Checked inductivity of 2016 backedges. 29 proven. 1947 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-03-16 11:36:15,576 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474579256] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:36:15,577 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:36:15,577 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 14, 41] total 79 [2022-03-16 11:36:15,577 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875855879] [2022-03-16 11:36:15,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:36:15,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 79 states [2022-03-16 11:36:15,577 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:36:15,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 79 interpolants. [2022-03-16 11:36:15,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1111, Invalid=5051, Unknown=0, NotChecked=0, Total=6162 [2022-03-16 11:36:15,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:15,580 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:36:15,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 79 states, 79 states have (on average 2.8734177215189876) internal successors, (227), 79 states have internal predecessors, (227), 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) [2022-03-16 11:36:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 124 states. [2022-03-16 11:36:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 11:36:15,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:15,581 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:19,871 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1461 transitions and produced 920 states. [2022-03-16 11:36:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-16 11:36:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 11:36:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:19,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 11:36:19,889 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 11:36:20,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:36:20,073 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:36:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:36:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash 955573757, now seen corresponding path program 6 times [2022-03-16 11:36:20,076 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:36:20,077 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696612020] [2022-03-16 11:36:20,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:36:20,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:36:20,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 11:36:30,246 INFO L134 CoverageAnalysis]: Checked inductivity of 9197 backedges. 2489 proven. 4980 refuted. 0 times theorem prover too weak. 1728 trivial. 0 not checked. [2022-03-16 11:36:30,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 11:36:30,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696612020] [2022-03-16 11:36:30,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696612020] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 11:36:30,247 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1339386831] [2022-03-16 11:36:30,247 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 11:36:30,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:36:30,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 11:36:30,256 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) [2022-03-16 11:36:30,260 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 11:36:30,634 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 61 check-sat command(s) [2022-03-16 11:36:30,634 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 11:36:30,641 INFO L263 TraceCheckSpWp]: Trace formula consists of 405 conjuncts, 163 conjunts are in the unsatisfiable core [2022-03-16 11:36:30,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 11:36:35,593 INFO L134 CoverageAnalysis]: Checked inductivity of 9197 backedges. 4188 proven. 4013 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2022-03-16 11:36:35,593 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 11:36:45,709 INFO L134 CoverageAnalysis]: Checked inductivity of 9197 backedges. 78 proven. 9050 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-03-16 11:36:45,709 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1339386831] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 11:36:45,709 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 11:36:45,709 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 34, 93] total 147 [2022-03-16 11:36:45,710 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50901380] [2022-03-16 11:36:45,710 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 11:36:45,711 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2022-03-16 11:36:45,711 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 11:36:45,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2022-03-16 11:36:45,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4670, Invalid=16792, Unknown=0, NotChecked=0, Total=21462 [2022-03-16 11:36:45,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:45,716 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 11:36:45,717 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 3.3401360544217686) internal successors, (491), 147 states have internal predecessors, (491), 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) [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 128 states. [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 11:36:45,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 11:36:50,452 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2117 transitions and produced 1259 states. [2022-03-16 11:36:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 128 states. [2022-03-16 11:36:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 11:36:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-16 11:36:50,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 11:36:50,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 115 states. [2022-03-16 11:36:50,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 11:36:50,653 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 11:36:50,653 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 11:36:50,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 11:36:50,654 INFO L85 PathProgramCache]: Analyzing trace with hash -1316616310, now seen corresponding path program 7 times [2022-03-16 11:36:50,654 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 11:36:50,654 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590164668] [2022-03-16 11:36:50,654 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 11:36:50,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 11:37:16,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-16 11:39:41,563 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 [2022-03-16 11:39:41,564 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 [2022-03-16 11:39:42,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-16 11:39:42,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-03-16 11:39:42,785 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-03-16 11:39:42,785 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Timeout exceeded at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:295) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$ProofTreeWalker.walk(Interpolator.java:145) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.interpolate(Interpolator.java:250) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:227) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:879) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:803) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:352) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.getInterpolants(WrapperScript.java:337) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.getInterpolants(ManagedScript.java:192) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.computeCraigInterpolants(NestedInterpolantsBuilder.java:284) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.NestedInterpolantsBuilder.(NestedInterpolantsBuilder.java:165) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolantsRecursive(InterpolatingTraceCheckCraig.java:327) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.computeInterpolants(InterpolatingTraceCheckCraig.java:229) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.InterpolatingTraceCheckCraig.(InterpolatingTraceCheckCraig.java:97) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleCraig.construct(IpTcStrategyModuleCraig.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:216) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:129) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-03-16 11:39:42,790 INFO L158 Benchmark]: Toolchain (without parser) took 800764.40ms. Allocated memory was 175.1MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 139.6MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-03-16 11:39:42,790 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:39:42,790 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.92ms. Allocated memory is still 175.1MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 11:39:42,791 INFO L158 Benchmark]: Boogie Preprocessor took 17.70ms. Allocated memory is still 175.1MB. Free memory was 138.1MB in the beginning and 137.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 11:39:42,791 INFO L158 Benchmark]: RCFGBuilder took 296.39ms. Allocated memory is still 175.1MB. Free memory was 137.0MB in the beginning and 126.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-16 11:39:42,791 INFO L158 Benchmark]: TraceAbstraction took 800420.93ms. Allocated memory was 175.1MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 126.4MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. [2022-03-16 11:39:42,793 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 175.1MB. Free memory is still 140.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.92ms. Allocated memory is still 175.1MB. Free memory was 139.5MB in the beginning and 138.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 17.70ms. Allocated memory is still 175.1MB. Free memory was 138.1MB in the beginning and 137.0MB in the end (delta: 1.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 296.39ms. Allocated memory is still 175.1MB. Free memory was 137.0MB in the beginning and 126.9MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 800420.93ms. Allocated memory was 175.1MB in the beginning and 4.8GB in the end (delta: 4.6GB). Free memory was 126.4MB in the beginning and 3.3GB in the end (delta: -3.2GB). Peak memory consumption was 3.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.walkLeafNode(Interpolator.java:295) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown