/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-more/buffer-series-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:16:07,501 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:16:07,502 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:16:07,566 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 06:16:07,567 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 06:16:07,569 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 06:16:07,573 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 06:16:07,576 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 06:16:07,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 06:16:07,582 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 06:16:07,582 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 06:16:07,583 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 06:16:07,584 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:16:07,585 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:16:07,586 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:16:07,587 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:16:07,587 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:16:07,588 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:16:07,591 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:16:07,596 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:16:07,597 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:16:07,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:16:07,599 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:16:07,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:16:07,604 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-04 06:16:07,604 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-04 06:16:07,605 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-04 06:16:07,606 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-04 06:16:07,606 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-04 06:16:07,606 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-04 06:16:07,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-04 06:16:07,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-04 06:16:07,608 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-04 06:16:07,609 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-04 06:16:07,609 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-04 06:16:07,610 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-04 06:16:07,610 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-04 06:16:07,610 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-04 06:16:07,610 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:16:07,611 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:16:07,611 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:16:07,612 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 [2022-03-04 06:16:07,639 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:16:07,639 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:16:07,640 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:16:07,640 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:16:07,640 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:16:07,640 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:16:07,641 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:16:07,641 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:16:07,641 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:16:07,641 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:16:07,641 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:16:07,642 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:16:07,642 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:16:07,643 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:16:07,643 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:16:07,644 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:16:07,859 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:16:07,881 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:16:07,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:16:07,883 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:16:07,884 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:16:07,885 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl [2022-03-04 06:16:07,885 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/buffer-series-array.wvr.bpl' [2022-03-04 06:16:07,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:16:07,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:16:07,908 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:16:07,908 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:16:07,909 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:16:07,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,924 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,928 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:16:07,929 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:16:07,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:16:07,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:16:07,931 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:16:07,936 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,936 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,938 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,938 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,947 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,948 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,952 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:16:07,952 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:16:07,952 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:16:07,953 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:16:07,953 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/1) ... [2022-03-04 06:16:07,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:16:07,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:07,977 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 06:16:07,984 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 06:16:08,009 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:16:08,009 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:16:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:16:08,010 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:16:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:16:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:16:08,010 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:16:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:16:08,010 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:16:08,010 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:16:08,010 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:16:08,011 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:16:08,011 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 06:16:08,011 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 06:16:08,013 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 06:16:08,014 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:16:08,057 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:16:08,059 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:16:08,135 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:16:08,150 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:16:08,150 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:16:08,151 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:16:08 BoogieIcfgContainer [2022-03-04 06:16:08,152 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:16:08,153 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:16:08,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:16:08,155 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:16:08,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:16:07" (1/2) ... [2022-03-04 06:16:08,156 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d004a0d and model type buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:16:08, skipping insertion in model container [2022-03-04 06:16:08,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:16:08" (2/2) ... [2022-03-04 06:16:08,157 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-series-array.wvr.bpl [2022-03-04 06:16:08,160 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:16:08,160 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:16:08,160 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:16:08,160 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:16:08,193 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 06:16:08,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:16:08,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:08,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:16:08,224 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:16:08,245 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:16:08,250 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 [2022-03-04 06:16:08,250 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 06:16:08,597 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 12631 transitions and produced 4480 states. [2022-03-04 06:16:08,599 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:08,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:08,605 INFO L85 PathProgramCache]: Analyzing trace with hash -506129211, now seen corresponding path program 1 times [2022-03-04 06:16:08,611 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:08,612 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751248097] [2022-03-04 06:16:08,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:08,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:08,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:09,032 INFO L134 CoverageAnalysis]: Checked inductivity of 2762 backedges. 869 proven. 0 refuted. 0 times theorem prover too weak. 1893 trivial. 0 not checked. [2022-03-04 06:16:09,033 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:09,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751248097] [2022-03-04 06:16:09,033 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751248097] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 06:16:09,033 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 06:16:09,034 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 06:16:09,035 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558716454] [2022-03-04 06:16:09,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 06:16:09,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 06:16:09,040 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:09,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 06:16:09,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 06:16:09,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:09,065 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:09,067 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.666666666666666) internal successors, (41), 3 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:16:09,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:09,162 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1431 transitions and produced 906 states. [2022-03-04 06:16:09,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:09,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 06:16:09,164 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:09,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:09,166 INFO L85 PathProgramCache]: Analyzing trace with hash -209219181, now seen corresponding path program 2 times [2022-03-04 06:16:09,166 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:09,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1512660] [2022-03-04 06:16:09,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:09,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:09,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:11,066 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1697 proven. 1130 refuted. 0 times theorem prover too weak. 130 trivial. 0 not checked. [2022-03-04 06:16:11,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:11,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1512660] [2022-03-04 06:16:11,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1512660] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:11,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1864631852] [2022-03-04 06:16:11,068 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:16:11,068 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:11,068 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:11,069 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:16:11,070 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:16:11,194 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:16:11,195 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:11,215 INFO L263 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 55 conjunts are in the unsatisfiable core [2022-03-04 06:16:11,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:14,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 131 proven. 2727 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2022-03-04 06:16:14,190 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:15,154 INFO L134 CoverageAnalysis]: Checked inductivity of 2957 backedges. 1199 proven. 1452 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2022-03-04 06:16:15,154 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1864631852] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:15,154 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:15,154 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 54, 13] total 123 [2022-03-04 06:16:15,155 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23043917] [2022-03-04 06:16:15,155 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:15,157 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 124 states [2022-03-04 06:16:15,157 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:15,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 124 interpolants. [2022-03-04 06:16:15,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1430, Invalid=13822, Unknown=0, NotChecked=0, Total=15252 [2022-03-04 06:16:15,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:15,163 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:15,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 124 states, 124 states have (on average 3.8548387096774195) internal successors, (478), 123 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:16:15,163 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:15,164 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:27,947 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1985 transitions and produced 1462 states. [2022-03-04 06:16:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:27,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:16:27,975 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 06:16:28,171 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 [2022-03-04 06:16:28,172 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:28,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:28,173 INFO L85 PathProgramCache]: Analyzing trace with hash 48188039, now seen corresponding path program 3 times [2022-03-04 06:16:28,173 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:28,173 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [289640475] [2022-03-04 06:16:28,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:28,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:28,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:29,322 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 2994 proven. 1162 refuted. 0 times theorem prover too weak. 2008 trivial. 0 not checked. [2022-03-04 06:16:29,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:29,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [289640475] [2022-03-04 06:16:29,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [289640475] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:29,323 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [440966825] [2022-03-04 06:16:29,323 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:16:29,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:29,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:29,324 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:16:29,325 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:16:29,406 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 06:16:29,406 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:29,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-04 06:16:29,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:29,901 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:16:29,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:30,342 INFO L134 CoverageAnalysis]: Checked inductivity of 6164 backedges. 913 proven. 5 refuted. 0 times theorem prover too weak. 5246 trivial. 0 not checked. [2022-03-04 06:16:30,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [440966825] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:30,343 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:30,343 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 8, 8] total 68 [2022-03-04 06:16:30,343 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1729028600] [2022-03-04 06:16:30,343 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:30,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-03-04 06:16:30,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:30,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-03-04 06:16:30,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1407, Invalid=3149, Unknown=0, NotChecked=0, Total=4556 [2022-03-04 06:16:30,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:30,346 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:30,346 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 3.323529411764706) internal successors, (226), 68 states have internal predecessors, (226), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:16:30,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:30,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 244 states. [2022-03-04 06:16:30,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:34,027 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2981 transitions and produced 2004 states. [2022-03-04 06:16:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:34,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:16:34,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:16:34,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 06:16:34,229 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 [2022-03-04 06:16:34,229 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:16:34,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:16:34,230 INFO L85 PathProgramCache]: Analyzing trace with hash 1218238245, now seen corresponding path program 4 times [2022-03-04 06:16:34,230 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:16:34,230 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807200389] [2022-03-04 06:16:34,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:16:34,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:16:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:16:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6700 proven. 7539 refuted. 0 times theorem prover too weak. 1506 trivial. 0 not checked. [2022-03-04 06:16:41,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:16:41,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807200389] [2022-03-04 06:16:41,751 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807200389] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:16:41,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [594929462] [2022-03-04 06:16:41,752 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:16:41,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:16:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:16:41,753 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:16:41,754 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:16:41,946 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:16:41,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:16:41,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 1371 conjuncts, 124 conjunts are in the unsatisfiable core [2022-03-04 06:16:41,982 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:16:53,234 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 4428 proven. 9679 refuted. 0 times theorem prover too weak. 1638 trivial. 0 not checked. [2022-03-04 06:16:53,234 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:16:57,666 INFO L134 CoverageAnalysis]: Checked inductivity of 15745 backedges. 6829 proven. 6650 refuted. 0 times theorem prover too weak. 2266 trivial. 0 not checked. [2022-03-04 06:16:57,667 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [594929462] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:16:57,667 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:16:57,667 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [162, 123, 39] total 322 [2022-03-04 06:16:57,667 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848451500] [2022-03-04 06:16:57,667 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:16:57,668 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 323 states [2022-03-04 06:16:57,668 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:16:57,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 323 interpolants. [2022-03-04 06:16:57,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7223, Invalid=96783, Unknown=0, NotChecked=0, Total=104006 [2022-03-04 06:16:57,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:16:57,684 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:16:57,686 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 323 states, 323 states have (on average 3.222910216718266) internal successors, (1041), 322 states have internal predecessors, (1041), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:16:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:16:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:16:57,686 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:16:57,687 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:17:55,174 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3526 transitions and produced 2568 states. [2022-03-04 06:17:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:17:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:17:55,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:17:55,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:17:55,192 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 06:17:55,382 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:17:55,382 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:17:55,383 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:17:55,383 INFO L85 PathProgramCache]: Analyzing trace with hash 725406080, now seen corresponding path program 5 times [2022-03-04 06:17:55,383 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:17:55,383 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1034055794] [2022-03-04 06:17:55,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:17:55,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:17:55,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:18:02,950 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 7827 proven. 5366 refuted. 0 times theorem prover too weak. 5475 trivial. 0 not checked. [2022-03-04 06:18:02,950 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:18:02,950 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1034055794] [2022-03-04 06:18:02,950 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1034055794] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:18:02,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [387393786] [2022-03-04 06:18:02,951 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:18:02,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:18:02,951 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:18:02,952 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:18:02,953 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:18:03,831 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 84 check-sat command(s) [2022-03-04 06:18:03,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:18:03,842 INFO L263 TraceCheckSpWp]: Trace formula consists of 1451 conjuncts, 147 conjunts are in the unsatisfiable core [2022-03-04 06:18:03,850 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:18:17,412 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:18:17,412 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:18:27,467 INFO L134 CoverageAnalysis]: Checked inductivity of 18668 backedges. 9551 proven. 7145 refuted. 0 times theorem prover too weak. 1972 trivial. 0 not checked. [2022-03-04 06:18:27,467 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [387393786] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:18:27,468 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:18:27,468 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [152, 146, 85] total 381 [2022-03-04 06:18:27,471 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [458134812] [2022-03-04 06:18:27,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:18:27,472 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 382 states [2022-03-04 06:18:27,472 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:18:27,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 382 interpolants. [2022-03-04 06:18:27,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24153, Invalid=121389, Unknown=0, NotChecked=0, Total=145542 [2022-03-04 06:18:27,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:18:27,485 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:18:27,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 382 states, 382 states have (on average 3.3769633507853403) internal successors, (1290), 381 states have internal predecessors, (1290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:18:27,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:18:27,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 286 states. [2022-03-04 06:18:27,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:18:27,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 511 states. [2022-03-04 06:18:27,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:19:21,126 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5034 transitions and produced 3222 states. [2022-03-04 06:19:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:19:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:19:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:19:21,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:19:21,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:19:21,148 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 06:19:21,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:19:21,348 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:19:21,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:19:21,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1848080875, now seen corresponding path program 6 times [2022-03-04 06:19:21,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:19:21,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004913260] [2022-03-04 06:19:21,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:19:21,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:19:21,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:19:45,146 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 18795 proven. 19255 refuted. 0 times theorem prover too weak. 5972 trivial. 0 not checked. [2022-03-04 06:19:45,146 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:19:45,146 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004913260] [2022-03-04 06:19:45,147 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004913260] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:19:45,147 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713514788] [2022-03-04 06:19:45,147 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:19:45,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:19:45,147 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:19:45,148 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:19:45,149 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:19:45,839 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 69 check-sat command(s) [2022-03-04 06:19:45,839 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:19:45,844 INFO L263 TraceCheckSpWp]: Trace formula consists of 1118 conjuncts, 20 conjunts are in the unsatisfiable core [2022-03-04 06:19:45,851 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:19:47,565 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:19:47,565 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:19:48,368 INFO L134 CoverageAnalysis]: Checked inductivity of 44022 backedges. 11529 proven. 1044 refuted. 0 times theorem prover too weak. 31449 trivial. 0 not checked. [2022-03-04 06:19:48,369 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713514788] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:19:48,369 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:19:48,369 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [296, 10, 10] total 305 [2022-03-04 06:19:48,369 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257748909] [2022-03-04 06:19:48,369 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:19:48,370 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 305 states [2022-03-04 06:19:48,370 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:19:48,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 305 interpolants. [2022-03-04 06:19:48,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17346, Invalid=75374, Unknown=0, NotChecked=0, Total=92720 [2022-03-04 06:19:48,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:19:48,378 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:19:48,379 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 305 states, 305 states have (on average 2.226229508196721) internal successors, (679), 305 states have internal predecessors, (679), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 643 states. [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:19:48,379 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:20:25,812 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5405 transitions and produced 3503 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:20:25,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:20:25,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 06:20:26,027 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:20:26,027 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:20:26,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:20:26,028 INFO L85 PathProgramCache]: Analyzing trace with hash 423123931, now seen corresponding path program 7 times [2022-03-04 06:20:26,028 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:20:26,028 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873431774] [2022-03-04 06:20:26,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:20:26,028 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:20:26,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:20:59,564 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 24738 proven. 22346 refuted. 0 times theorem prover too weak. 5967 trivial. 0 not checked. [2022-03-04 06:20:59,565 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:20:59,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873431774] [2022-03-04 06:20:59,565 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873431774] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:20:59,565 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20748038] [2022-03-04 06:20:59,565 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:20:59,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:20:59,565 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:20:59,566 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:20:59,567 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:20:59,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:20:59,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 2307 conjuncts, 232 conjunts are in the unsatisfiable core [2022-03-04 06:20:59,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:21:40,129 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 25007 proven. 24103 refuted. 0 times theorem prover too weak. 3941 trivial. 0 not checked. [2022-03-04 06:21:40,130 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:22:02,462 INFO L134 CoverageAnalysis]: Checked inductivity of 53051 backedges. 31493 proven. 16984 refuted. 0 times theorem prover too weak. 4574 trivial. 0 not checked. [2022-03-04 06:22:02,462 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20748038] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:22:02,462 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:22:02,462 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [355, 231, 113] total 697 [2022-03-04 06:22:02,463 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734914886] [2022-03-04 06:22:02,463 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:22:02,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 698 states [2022-03-04 06:22:02,465 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:22:02,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 698 interpolants. [2022-03-04 06:22:02,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61304, Invalid=425202, Unknown=0, NotChecked=0, Total=486506 [2022-03-04 06:22:02,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:22:02,493 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:22:02,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 698 states, 698 states have (on average 2.833810888252149) internal successors, (1978), 697 states have internal predecessors, (1978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 06:22:02,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:22:02,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:22:02,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:22:02,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:22:02,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 549 states. [2022-03-04 06:22:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 532 states. [2022-03-04 06:22:02,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:27:33,810 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8773 transitions and produced 6398 states. [2022-03-04 06:27:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 06:27:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 296 states. [2022-03-04 06:27:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2022-03-04 06:27:33,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 718 states. [2022-03-04 06:27:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 838 states. [2022-03-04 06:27:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 570 states. [2022-03-04 06:27:33,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 1181 states. [2022-03-04 06:27:33,834 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 06:27:34,011 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:27:34,012 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 06:27:34,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:27:34,012 INFO L85 PathProgramCache]: Analyzing trace with hash 2128591337, now seen corresponding path program 8 times [2022-03-04 06:27:34,012 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:27:34,012 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676747742] [2022-03-04 06:27:34,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:27:34,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:27:35,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-03-04 06:28:08,364 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 06:28:08,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-03-04 06:28:08,365 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. [2022-03-04 06:28:08,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 06:28:08,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 06:28:08,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 06:28:08,366 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 06:28:08,370 INFO L732 BasicCegarLoop]: Path program histogram: [8] [2022-03-04 06:28:08,373 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:28:08,373 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:28:08,375 INFO L202 PluginConnector]: Adding new model buffer-series-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:28:08 BasicIcfg [2022-03-04 06:28:08,375 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:28:08,375 INFO L158 Benchmark]: Toolchain (without parser) took 720467.99ms. Allocated memory was 195.0MB in the beginning and 5.1GB in the end (delta: 4.9GB). Free memory was 159.4MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-04 06:28:08,375 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:28:08,376 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.64ms. Allocated memory is still 195.0MB. Free memory was 159.3MB in the beginning and 157.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:28:08,376 INFO L158 Benchmark]: Boogie Preprocessor took 21.10ms. Allocated memory is still 195.0MB. Free memory was 157.7MB in the beginning and 156.7MB in the end (delta: 988.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:28:08,376 INFO L158 Benchmark]: RCFGBuilder took 199.28ms. Allocated memory is still 195.0MB. Free memory was 156.7MB in the beginning and 146.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-04 06:28:08,376 INFO L158 Benchmark]: TraceAbstraction took 720222.02ms. Allocated memory was 195.0MB in the beginning and 5.1GB in the end (delta: 4.9GB). Free memory was 146.0MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-04 06:28:08,377 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 0.11ms. Allocated memory is still 195.0MB. Free memory is still 160.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.64ms. Allocated memory is still 195.0MB. Free memory was 159.3MB in the beginning and 157.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.10ms. Allocated memory is still 195.0MB. Free memory was 157.7MB in the beginning and 156.7MB in the end (delta: 988.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 199.28ms. Allocated memory is still 195.0MB. Free memory was 156.7MB in the beginning and 146.5MB in the end (delta: 10.1MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 720222.02ms. Allocated memory was 195.0MB in the beginning and 5.1GB in the end (delta: 4.9GB). Free memory was 146.0MB in the beginning and 3.8GB in the end (delta: -3.6GB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1453 with TraceHistMax 242,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 319 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 720.2s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 8, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 496.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3678, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 3.4s SatisfiabilityAnalysisTime, 183.6s InterpolantComputationTime, 7206 NumberOfCodeBlocks, 6538 NumberOfCodeBlocksAsserted, 175 NumberOfCheckSat, 10674 ConstructedInterpolants, 0 QuantifiedInterpolants, 65729 SizeOfPredicates, 16 NumberOfNonLiveVariables, 7107 ConjunctsInSsa, 590 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 289802/424583 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown