/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 06:17:26,683 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 06:17:26,685 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 06:17:26,713 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 06:17:26,714 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 06:17:26,715 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 06:17:26,716 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 06:17:26,718 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 06:17:26,719 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 06:17:26,720 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 06:17:26,721 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 06:17:26,722 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 06:17:26,722 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 06:17:26,723 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 06:17:26,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 06:17:26,725 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 06:17:26,725 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 06:17:26,726 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 06:17:26,728 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 06:17:26,729 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 06:17:26,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 06:17:26,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 06:17:26,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 06:17:26,733 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 06:17:26,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-16 06:17:26,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-16 06:17:26,736 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-16 06:17:26,737 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-16 06:17:26,737 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-16 06:17:26,738 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-16 06:17:26,738 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-16 06:17:26,739 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-16 06:17:26,739 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-16 06:17:26,740 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-16 06:17:26,741 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-16 06:17:26,741 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-16 06:17:26,742 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-16 06:17:26,742 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-16 06:17:26,742 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 06:17:26,743 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 06:17:26,744 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 06:17:26,745 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.epf [2022-02-16 06:17:26,791 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 06:17:26,799 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 06:17:26,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 06:17:26,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 06:17:26,801 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 06:17:26,801 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 06:17:26,801 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 06:17:26,801 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 06:17:26,802 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 06:17:26,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 06:17:26,802 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 06:17:26,802 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 06:17:26,802 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 06:17:26,803 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 06:17:26,804 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 06:17:26,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 06:17:26,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 06:17:26,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 06:17:26,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 06:17:26,805 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 06:17:26,805 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 06:17:26,805 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 06:17:26,805 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 06:17:26,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 06:17:26,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 06:17:26,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 06:17:26,806 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 06:17:26,806 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 06:17:26,806 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 06:17:26,806 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 06:17:26,807 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 06:17:27,063 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 06:17:27,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 06:17:27,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 06:17:27,099 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 06:17:27,100 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 06:17:27,101 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl [2022-02-16 06:17:27,101 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array-hom.wvr.bpl' [2022-02-16 06:17:27,132 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 06:17:27,133 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 06:17:27,139 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 06:17:27,140 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 06:17:27,140 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 06:17:27,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,159 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,166 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 06:17:27,168 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 06:17:27,170 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 06:17:27,170 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 06:17:27,170 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 06:17:27,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,183 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,186 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,193 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 06:17:27,197 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 06:17:27,197 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 06:17:27,197 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 06:17:27,198 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/1) ... [2022-02-16 06:17:27,205 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 06:17:27,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:17:27,224 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-16 06:17:27,230 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-16 06:17:27,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 06:17:27,255 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 06:17:27,255 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 06:17:27,255 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 06:17:27,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 06:17:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 06:17:27,256 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 06:17:27,256 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 06:17:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 06:17:27,256 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 06:17:27,256 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 06:17:27,256 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 06:17:27,257 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 06:17:27,306 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 06:17:27,308 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 06:17:27,436 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 06:17:27,449 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 06:17:27,449 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 06:17:27,451 INFO L202 PluginConnector]: Adding new model max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 06:17:27 BoogieIcfgContainer [2022-02-16 06:17:27,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 06:17:27,455 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 06:17:27,455 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 06:17:27,458 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 06:17:27,458 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 06:17:27" (1/2) ... [2022-02-16 06:17:27,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f76c17d and model type max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 06:17:27, skipping insertion in model container [2022-02-16 06:17:27,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 06:17:27" (2/2) ... [2022-02-16 06:17:27,461 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array-hom.wvr.bpl [2022-02-16 06:17:27,470 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 06:17:27,470 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 06:17:27,470 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 06:17:27,470 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 06:17:27,521 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 06:17:27,572 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 06:17:27,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:17:27,576 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-16 06:17:27,578 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-16 06:17:27,615 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 06:17:27,623 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=false, 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 [2022-02-16 06:17:27,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 06:17:27,636 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36 places, 29 transitions, 82 flow [2022-02-16 06:17:27,691 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 112 states, 111 states have (on average 2.810810810810811) internal successors, (312), 111 states have internal predecessors, (312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 06:17:27,764 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 413 transitions and produced 374 states. [2022-02-16 06:17:27,766 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 06:17:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 06:17:27,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1640016774, now seen corresponding path program 1 times [2022-02-16 06:17:27,797 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 06:17:27,798 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500633872] [2022-02-16 06:17:27,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:17:27,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 06:17:28,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:17:28,686 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 495 proven. 138 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-16 06:17:28,687 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 06:17:28,687 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500633872] [2022-02-16 06:17:28,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500633872] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 06:17:28,688 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748856528] [2022-02-16 06:17:28,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:17:28,689 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:17:28,689 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:17:28,695 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 06:17:28,716 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 06:17:28,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:17:28,817 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-16 06:17:28,833 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 06:17:29,954 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 133 proven. 512 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 06:17:29,954 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 06:17:31,202 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 24 proven. 636 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 06:17:31,203 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748856528] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 06:17:31,203 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 06:17:31,204 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 37] total 75 [2022-02-16 06:17:31,206 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519940355] [2022-02-16 06:17:31,206 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 06:17:31,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-02-16 06:17:31,210 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 06:17:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-02-16 06:17:31,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=4322, Unknown=0, NotChecked=0, Total=5550 [2022-02-16 06:17:31,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:31,234 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 06:17:31,235 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.8) internal successors, (210), 75 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 06:17:31,235 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:35,065 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 437 transitions and produced 415 states. [2022-02-16 06:17:35,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 06:17:35,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-16 06:17:35,267 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-16 06:17:35,267 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 06:17:35,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 06:17:35,268 INFO L85 PathProgramCache]: Analyzing trace with hash -842338376, now seen corresponding path program 2 times [2022-02-16 06:17:35,268 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 06:17:35,268 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047813275] [2022-02-16 06:17:35,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:17:35,269 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 06:17:35,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:17:36,095 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 410 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 06:17:36,095 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 06:17:36,095 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047813275] [2022-02-16 06:17:36,096 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047813275] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 06:17:36,096 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707024575] [2022-02-16 06:17:36,096 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 06:17:36,096 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:17:36,096 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:17:36,100 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 06:17:36,137 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 06:17:36,182 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 06:17:36,183 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 06:17:36,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-16 06:17:36,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 06:17:37,285 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 385 proven. 196 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-16 06:17:37,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 06:17:38,098 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 385 proven. 196 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-16 06:17:38,098 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707024575] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 06:17:38,099 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 06:17:38,099 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 32, 32] total 88 [2022-02-16 06:17:38,099 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253381792] [2022-02-16 06:17:38,099 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 06:17:38,100 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-16 06:17:38,100 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 06:17:38,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-16 06:17:38,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=6477, Unknown=0, NotChecked=0, Total=7656 [2022-02-16 06:17:38,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:38,104 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 06:17:38,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.25) internal successors, (198), 88 states have internal predecessors, (198), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 06:17:38,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-02-16 06:17:38,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:39,791 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 541 transitions and produced 513 states. [2022-02-16 06:17:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 06:17:39,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-16 06:17:39,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-16 06:17:39,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:17:39,993 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 06:17:39,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 06:17:39,994 INFO L85 PathProgramCache]: Analyzing trace with hash -565963600, now seen corresponding path program 3 times [2022-02-16 06:17:39,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 06:17:39,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575884549] [2022-02-16 06:17:39,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:17:39,995 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 06:17:40,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 06:17:40,767 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 410 proven. 617 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 06:17:40,767 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 06:17:40,767 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575884549] [2022-02-16 06:17:40,768 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575884549] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 06:17:40,768 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193954711] [2022-02-16 06:17:40,768 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 06:17:40,768 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:17:40,768 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 06:17:40,771 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-16 06:17:40,773 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 06:17:40,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-02-16 06:17:40,991 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 06:17:40,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-16 06:17:40,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 06:17:42,819 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 410 proven. 617 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 06:17:42,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 06:17:45,219 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 457 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 06:17:45,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193954711] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 06:17:45,220 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 06:17:45,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 53] total 141 [2022-02-16 06:17:45,220 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659375773] [2022-02-16 06:17:45,220 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 06:17:45,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 141 states [2022-02-16 06:17:45,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 06:17:45,222 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 141 interpolants. [2022-02-16 06:17:45,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3688, Invalid=16052, Unknown=0, NotChecked=0, Total=19740 [2022-02-16 06:17:45,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:45,230 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 06:17:45,231 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 141 states, 141 states have (on average 2.198581560283688) internal successors, (310), 141 states have internal predecessors, (310), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-16 06:17:45,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-02-16 06:17:45,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-16 06:17:45,231 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 06:17:47,409 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 613 transitions and produced 584 states. [2022-02-16 06:17:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 06:17:47,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-16 06:17:47,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-16 06:17:47,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 06:17:47,615 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 06:17:47,616 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 06:17:47,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 06:17:47,616 INFO L85 PathProgramCache]: Analyzing trace with hash 1581651266, now seen corresponding path program 4 times [2022-02-16 06:17:47,617 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 06:17:47,617 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535396880] [2022-02-16 06:17:47,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 06:17:47,617 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 06:18:31,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-16 06:31:37,807 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 06:31:37,807 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-16 06:31:38,829 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 [2022-02-16 06:31:38,847 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 [2022-02-16 06:31:40,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-02-16 06:31:40,070 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$IntegerInterpolator.interpolate(Interpolator.java:1355) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$MixedLAInterpolator.convert(Interpolator.java:1218) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) 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.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.mixedPivotLA(Interpolator.java:1400) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.combine(Interpolator.java:383) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$CombineInterpolants.walk(Interpolator.java:165) 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:249) at de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator.getInterpolants(Interpolator.java:226) at de.uni_freiburg.informatik.ultimate.smtinterpol.smtlib2.SMTInterpol.getInterpolants(SMTInterpol.java:876) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:392) at de.uni_freiburg.informatik.ultimate.logic.NoopScript.getInterpolants(NoopScript.java:386) 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) [2022-02-16 06:31:40,073 INFO L158 Benchmark]: Toolchain (without parser) took 852939.66ms. Allocated memory was 173.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 137.8MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-02-16 06:31:40,074 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-16 06:31:40,074 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.74ms. Allocated memory is still 173.0MB. Free memory was 137.7MB in the beginning and 136.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-16 06:31:40,075 INFO L158 Benchmark]: Boogie Preprocessor took 23.73ms. Allocated memory is still 173.0MB. Free memory was 136.2MB in the beginning and 135.2MB in the end (delta: 988.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-16 06:31:40,075 INFO L158 Benchmark]: RCFGBuilder took 256.68ms. Allocated memory is still 173.0MB. Free memory was 135.1MB in the beginning and 125.9MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-16 06:31:40,075 INFO L158 Benchmark]: TraceAbstraction took 852617.36ms. Allocated memory was 173.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 125.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. [2022-02-16 06:31:40,077 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12ms. Allocated memory is still 173.0MB. Free memory is still 138.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 28.74ms. Allocated memory is still 173.0MB. Free memory was 137.7MB in the beginning and 136.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 23.73ms. Allocated memory is still 173.0MB. Free memory was 136.2MB in the beginning and 135.2MB in the end (delta: 988.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 256.68ms. Allocated memory is still 173.0MB. Free memory was 135.1MB in the beginning and 125.9MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 852617.36ms. Allocated memory was 173.0MB in the beginning and 3.5GB in the end (delta: 3.3GB). Free memory was 125.4MB in the beginning and 1.8GB in the end (delta: -1.6GB). Peak memory consumption was 2.4GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: Timeout exceeded de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Timeout exceeded: de.uni_freiburg.informatik.ultimate.smtinterpol.interpolate.Interpolator$IntegerInterpolator.interpolate(Interpolator.java:1355) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown