/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/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/queue_ok.line351.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 00:49:36,658 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 00:49:36,660 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 00:49:36,683 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 00:49:36,683 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 00:49:36,684 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 00:49:36,685 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 00:49:36,686 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 00:49:36,687 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 00:49:36,688 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 00:49:36,688 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 00:49:36,689 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 00:49:36,689 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 00:49:36,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 00:49:36,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 00:49:36,698 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 00:49:36,699 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 00:49:36,703 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 00:49:36,707 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 00:49:36,710 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 00:49:36,711 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 00:49:36,712 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 00:49:36,713 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 00:49:36,713 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 00:49:36,715 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 00:49:36,724 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 00:49:36,724 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 00:49:36,725 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 00:49:36,726 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 00:49:36,745 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 00:49:36,745 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 00:49:36,745 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 00:49:36,745 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 00:49:36,746 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 00:49:36,746 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 00:49:36,746 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 00:49:36,747 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 00:49:36,748 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 00:49:36,748 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 00:49:36,748 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 00:49:36,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 00:49:36,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 00:49:36,749 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 00:49:36,749 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 00:49:36,750 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 00:49:36,750 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 00:49:36,751 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 00:49:36,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 00:49:36,959 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 00:49:36,960 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 00:49:36,961 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 00:49:36,962 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 00:49:36,963 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/queue_ok.line351.bpl [2022-10-04 00:49:36,963 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/queue_ok.line351.bpl' [2022-10-04 00:49:37,018 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 00:49:37,019 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 00:49:37,020 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 00:49:37,020 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 00:49:37,020 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 00:49:37,031 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,083 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,086 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,088 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 00:49:37,110 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 00:49:37,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 00:49:37,110 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 00:49:37,111 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/1) ... [2022-10-04 00:49:37,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 00:49:37,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:37,133 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) [2022-10-04 00:49:37,136 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 [2022-10-04 00:49:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-10-04 00:49:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-10-04 00:49:37,167 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-10-04 00:49:37,167 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-10-04 00:49:37,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 00:49:37,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 00:49:37,169 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 00:49:37,303 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 00:49:37,304 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 00:49:37,719 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 00:49:37,729 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 00:49:37,730 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-04 00:49:37,731 INFO L202 PluginConnector]: Adding new model queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:49:37 BoogieIcfgContainer [2022-10-04 00:49:37,731 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 00:49:37,733 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 00:49:37,733 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 00:49:37,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 00:49:37,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 12:49:37" (1/2) ... [2022-10-04 00:49:37,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@142398c and model type queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 12:49:37, skipping insertion in model container [2022-10-04 00:49:37,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "queue_ok.line351.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 12:49:37" (2/2) ... [2022-10-04 00:49:37,739 INFO L112 eAbstractionObserver]: Analyzing ICFG queue_ok.line351.bpl [2022-10-04 00:49:37,745 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 00:49:37,751 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 00:49:37,751 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 00:49:37,752 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 00:49:37,882 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 00:49:37,937 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 00:49:37,937 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 00:49:37,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:37,939 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) [2022-10-04 00:49:37,948 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 [2022-10-04 00:49:37,973 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 00:49:37,980 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 00:49:37,985 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a15b34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 00:49:37,985 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 00:49:38,369 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 00:49:38,374 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 00:49:38,376 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-04 00:49:38,385 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 00:49:38,385 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 00:49:38,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:38,387 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 00:49:38,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-04 00:49:38,391 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 00:49:38,391 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 00:49:38,392 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a15b34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 00:49:38,392 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 00:49:38,407 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 00:49:38,408 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 00:49:38,408 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-04 00:49:38,413 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 00:49:38,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 00:49:38,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:38,457 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 00:49:38,459 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-04 00:49:38,462 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 00:49:38,462 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 00:49:38,463 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a15b34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 00:49:38,463 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 00:49:38,463 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 00:49:38,463 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 00:49:38,464 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 00:49:38,464 INFO L307 ceAbstractionStarter]: Result for error location t1Err0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-04 00:49:38,468 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 00:49:38,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 00:49:38,469 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:38,471 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 00:49:38,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-04 00:49:38,476 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 00:49:38,477 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-04 00:49:38,478 INFO L357 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, 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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7a15b34f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 00:49:38,478 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 00:49:39,702 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:49:39,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:49:39,705 INFO L85 PathProgramCache]: Analyzing trace with hash -954586634, now seen corresponding path program 1 times [2022-10-04 00:49:39,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:49:39,711 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1901024833] [2022-10-04 00:49:39,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:49:39,712 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:49:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:49:40,194 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 700 trivial. 0 not checked. [2022-10-04 00:49:40,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:49:40,194 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1901024833] [2022-10-04 00:49:40,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1901024833] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 00:49:40,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 00:49:40,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 00:49:40,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390156309] [2022-10-04 00:49:40,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 00:49:40,204 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 00:49:40,204 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:49:40,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 00:49:40,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 00:49:40,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:40,224 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:49:40,225 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 196.0) internal successors, (392), 2 states have internal predecessors, (392), 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) [2022-10-04 00:49:40,225 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:40,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:40,826 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 00:49:40,826 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:49:40,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:49:40,826 INFO L85 PathProgramCache]: Analyzing trace with hash -554807040, now seen corresponding path program 1 times [2022-10-04 00:49:40,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:49:40,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711585828] [2022-10-04 00:49:40,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:49:40,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:49:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:49:41,282 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 423 proven. 0 refuted. 0 times theorem prover too weak. 277 trivial. 0 not checked. [2022-10-04 00:49:41,283 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:49:41,283 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711585828] [2022-10-04 00:49:41,283 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711585828] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 00:49:41,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 00:49:41,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-04 00:49:41,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188866535] [2022-10-04 00:49:41,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 00:49:41,286 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-04 00:49:41,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:49:41,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-04 00:49:41,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-04 00:49:41,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:41,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:49:41,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 78.33333333333333) internal successors, (470), 6 states have internal predecessors, (470), 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) [2022-10-04 00:49:41,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:41,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:49:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:49:41,430 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 00:49:41,430 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:49:41,431 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:49:41,432 INFO L85 PathProgramCache]: Analyzing trace with hash -648174904, now seen corresponding path program 1 times [2022-10-04 00:49:41,432 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:49:41,432 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [301879692] [2022-10-04 00:49:41,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:49:41,432 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:49:41,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:49:41,730 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 0 proven. 147 refuted. 0 times theorem prover too weak. 258 trivial. 0 not checked. [2022-10-04 00:49:41,731 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:49:41,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [301879692] [2022-10-04 00:49:41,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [301879692] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 00:49:41,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536523444] [2022-10-04 00:49:41,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:49:41,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:49:41,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:49:41,734 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) [2022-10-04 00:49:41,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-04 00:49:41,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:49:41,977 INFO L263 TraceCheckSpWp]: Trace formula consists of 1133 conjuncts, 61 conjunts are in the unsatisfiable core [2022-10-04 00:49:42,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 00:49:42,736 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-04 00:49:42,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 00:49:42,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-04 00:49:43,216 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-04 00:49:43,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 27 [2022-10-04 00:49:43,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 00:49:43,342 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-04 00:49:43,391 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-04 00:49:43,436 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 270 proven. 55 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-10-04 00:49:43,437 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 00:50:07,781 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_t1Thread1of1ForFork1_write~int_#ptr#1.base| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (not (= (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1) 20)) (< (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|)))) is different from false [2022-10-04 00:50:07,874 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| Int)) (or (forall ((v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (not (= 20 (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1))) (< (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|)))) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| |c_~#stored_elements~0.base|)))) is different from false [2022-10-04 00:50:07,890 WARN L833 $PredicateComparison]: unable to prove that (forall ((|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| Int) (v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (< (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|) (not (= 20 (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1))) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| |c_~#stored_elements~0.base|))))) is different from false [2022-10-04 00:50:07,944 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 00:50:07,944 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 41 [2022-10-04 00:50:07,952 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 00:50:07,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 76 treesize of output 78 [2022-10-04 00:50:07,961 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 63 treesize of output 55 [2022-10-04 00:50:07,974 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 4 [2022-10-04 00:50:08,012 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-04 00:50:08,013 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 54 treesize of output 54 [2022-10-04 00:50:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 270 proven. 55 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2022-10-04 00:50:08,517 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536523444] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 00:50:08,517 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 00:50:08,517 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 23, 23] total 51 [2022-10-04 00:50:08,517 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092380298] [2022-10-04 00:50:08,517 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 00:50:08,518 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-04 00:50:08,518 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:50:08,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-04 00:50:08,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=2045, Unknown=59, NotChecked=282, Total=2550 [2022-10-04 00:50:08,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:08,522 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:50:08,522 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 19.568627450980394) internal successors, (998), 51 states have internal predecessors, (998), 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) [2022-10-04 00:50:08,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:08,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:08,522 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:09,285 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (+ 84 |c_~#queue~0.offset|))) (and (= (select (select |c_#memory_int| |c_~#queue~0.base|) .cse0) 1) (= |c_t1Thread1of1ForFork1_write~int_#ptr#1.base| |c_~#queue~0.base|) (= |c_~#queue~0.offset| |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|) (= (select |c_#valid| |c_t1Thread1of1ForFork1_read~int_#ptr#1.base|) 1) (forall ((|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| Int) (v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse1 (select (store |c_#memory_int| |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| v_ArrVal_219) |c_~#queue~0.base|)) (.cse2 (+ 84 |c_~#queue~0.offset|))) (or (< (+ (* (select .cse1 .cse2) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|) (not (= 20 (select (store .cse1 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse2))) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| |c_~#stored_elements~0.base|))))) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (<= 7 |c_~#queue~0.base|) (= |c_t1Thread1of1ForFork1_enqueue_#in~q#1.offset| |c_~#queue~0.offset|) (= (select (select |c_#memory_int| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) (+ 84 |c_t1Thread1of1ForFork1_enqueue_~q#1.offset|)) 1) (= |c_~#queue~0.base| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) (= |c_t1Thread1of1ForFork1_write~int_#value#1| 1) (= (select |c_#valid| |c_~#queue~0.base|) 1) (= (select |c_#valid| |c_t1Thread1of1ForFork1_enqueue_#in~q#1.base|) 1) (= (select |c_#valid| |c_t1Thread1of1ForFork1_enqueue_~q#1.base|) 1) (= .cse0 |c_t1Thread1of1ForFork1_write~int_#ptr#1.offset|) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_~q#1.base|) (= |c_~#queue~0.base| |c_ULTIMATE.start_init_#in~q#1.base|) (<= |c_~#stored_elements~0.base| 6) (<= 7 |c_t1Thread1of1ForFork1_enqueue_~q#1.base|))) is different from false [2022-10-04 00:50:09,289 WARN L833 $PredicateComparison]: unable to prove that (and (= (select (select |c_#memory_int| |c_~#queue~0.base|) (+ 84 |c_~#queue~0.offset|)) 1) (forall ((|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| Int) (v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_#memory_int| |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (< (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|) (not (= 20 (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1))) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| |c_~#stored_elements~0.base|))))) (<= 7 |c_~#queue~0.base|) (= (select |c_#valid| |c_~#queue~0.base|) 1) (<= |c_~#stored_elements~0.base| 6)) is different from false [2022-10-04 00:50:09,292 WARN L833 $PredicateComparison]: unable to prove that (and (<= 7 |c_~#queue~0.base|) (= (select |c_#valid| |c_~#queue~0.base|) 1) (forall ((|v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| Int)) (or (forall ((v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (not (= 20 (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1))) (< (+ (* (select .cse0 .cse1) 4) |c_~#queue~0.offset|) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|)))) (not (<= |v_t1Thread1of1ForFork1_write~int_#ptr#1.base_53| |c_~#stored_elements~0.base|)))) (= (select (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_~#queue~0.base|) (+ 84 |c_~#queue~0.offset|)) 1) (<= |c_~#stored_elements~0.base| 6)) is different from false [2022-10-04 00:50:09,719 WARN L833 $PredicateComparison]: unable to prove that (and (<= 7 |c_~#queue~0.base|) (<= |c_t1Thread1of1ForFork1_write~int_#ptr#1.base| 6) (forall ((v_ArrVal_222 Int) (v_ArrVal_219 (Array Int Int)) (|v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| Int)) (let ((.cse0 (select (store |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_t1Thread1of1ForFork1_write~int_#ptr#1.base| v_ArrVal_219) |c_~#queue~0.base|)) (.cse1 (+ 84 |c_~#queue~0.offset|))) (or (not (= (select (store .cse0 |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42| v_ArrVal_222) .cse1) 20)) (< (+ |c_~#queue~0.offset| (* (select .cse0 .cse1) 4)) |v_t1Thread1of1ForFork1_write~int_#ptr#1.offset_42|)))) (= (select |c_#valid| |c_~#queue~0.base|) 1) (= (select (select |c_t1Thread1of1ForFork1_write~int_old_#memory_int#1| |c_~#queue~0.base|) (+ 84 |c_~#queue~0.offset|)) 1)) is different from false [2022-10-04 00:50:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:17,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:17,311 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-04 00:50:17,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:17,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:50:17,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:50:17,495 INFO L85 PathProgramCache]: Analyzing trace with hash -609338775, now seen corresponding path program 1 times [2022-10-04 00:50:17,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:50:17,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [639027632] [2022-10-04 00:50:17,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:17,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:50:17,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:17,760 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-10-04 00:50:17,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:50:17,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [639027632] [2022-10-04 00:50:17,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [639027632] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 00:50:17,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1401226682] [2022-10-04 00:50:17,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:17,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:17,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:50:17,762 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) [2022-10-04 00:50:17,763 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-04 00:50:18,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:18,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 1549 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-04 00:50:18,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 00:50:18,129 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 280 proven. 0 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2022-10-04 00:50:18,130 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 00:50:18,130 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1401226682] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 00:50:18,130 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 00:50:18,130 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [9] total 12 [2022-10-04 00:50:18,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618309964] [2022-10-04 00:50:18,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 00:50:18,131 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-04 00:50:18,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:50:18,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-04 00:50:18,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-10-04 00:50:18,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:18,132 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:50:18,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2022-10-04 00:50:18,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:18,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:18,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:18,132 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:19,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:19,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:19,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:19,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 00:50:19,889 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-04 00:50:20,078 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:20,079 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:50:20,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:50:20,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1810036213, now seen corresponding path program 1 times [2022-10-04 00:50:20,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:50:20,079 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455874003] [2022-10-04 00:50:20,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:20,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:50:20,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:20,290 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 0 proven. 196 refuted. 0 times theorem prover too weak. 504 trivial. 0 not checked. [2022-10-04 00:50:20,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:50:20,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455874003] [2022-10-04 00:50:20,290 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455874003] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 00:50:20,290 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1791731800] [2022-10-04 00:50:20,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:20,290 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:20,290 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:50:20,291 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) [2022-10-04 00:50:20,292 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-04 00:50:20,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:20,533 INFO L263 TraceCheckSpWp]: Trace formula consists of 1547 conjuncts, 114 conjunts are in the unsatisfiable core [2022-10-04 00:50:20,542 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 00:50:22,577 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-04 00:50:22,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 00:50:22,718 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 18 [2022-10-04 00:50:23,185 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 00:50:23,191 INFO L356 Elim1Store]: treesize reduction 23, result has 28.1 percent of original size [2022-10-04 00:50:23,192 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 34 treesize of output 27 [2022-10-04 00:50:23,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 00:50:23,463 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-04 00:50:23,673 INFO L134 CoverageAnalysis]: Checked inductivity of 700 backedges. 608 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-04 00:50:23,673 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 00:50:23,673 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1791731800] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 00:50:23,673 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 00:50:23,673 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [9] total 29 [2022-10-04 00:50:23,673 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071108745] [2022-10-04 00:50:23,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 00:50:23,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-10-04 00:50:23,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:50:23,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-10-04 00:50:23,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=688, Unknown=0, NotChecked=0, Total=812 [2022-10-04 00:50:23,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:23,675 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:50:23,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 29.952380952380953) internal successors, (629), 21 states have internal predecessors, (629), 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) [2022-10-04 00:50:23,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:23,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:23,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:23,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 00:50:23,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-04 00:50:29,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-04 00:50:29,527 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-10-04 00:50:29,708 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:29,708 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting t1Err0ASSERT_VIOLATIONASSERT === [t1Err0ASSERT_VIOLATIONASSERT] === [2022-10-04 00:50:29,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 00:50:29,709 INFO L85 PathProgramCache]: Analyzing trace with hash 1531490291, now seen corresponding path program 1 times [2022-10-04 00:50:29,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 00:50:29,709 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2042441069] [2022-10-04 00:50:29,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:29,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 00:50:29,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-04 00:50:29,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 00:50:29,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2042441069] [2022-10-04 00:50:29,847 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2042441069] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 00:50:29,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306738525] [2022-10-04 00:50:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 00:50:29,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 00:50:29,847 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 00:50:29,848 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 00:50:29,867 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-04 00:50:30,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 00:50:30,048 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 102 conjunts are in the unsatisfiable core [2022-10-04 00:50:30,054 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 00:50:30,113 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-04 00:50:30,295 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-04 00:50:30,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 00:50:30,412 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-04 00:50:30,676 INFO L356 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2022-10-04 00:50:30,676 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 22 [2022-10-04 00:50:30,680 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-04 00:50:30,743 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-04 00:50:31,134 INFO L356 Elim1Store]: treesize reduction 17, result has 46.9 percent of original size [2022-10-04 00:50:31,135 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 25 treesize of output 30 [2022-10-04 00:50:31,265 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-04 00:50:31,265 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 13 treesize of output 13 [2022-10-04 00:50:31,370 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-10-04 00:50:31,422 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-04 00:50:31,572 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 00:50:31,572 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 00:50:33,397 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-04 00:50:33,397 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 11 [2022-10-04 00:50:43,822 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 6 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 00:50:43,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306738525] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 00:50:43,822 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 00:50:43,822 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 33, 21] total 53 [2022-10-04 00:50:43,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586671605] [2022-10-04 00:50:43,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 00:50:43,823 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-10-04 00:50:43,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 00:50:43,824 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-10-04 00:50:43,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=2531, Unknown=28, NotChecked=0, Total=2862 [2022-10-04 00:50:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:43,825 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 00:50:43,826 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 53 states have (on average 15.433962264150944) internal successors, (818), 54 states have internal predecessors, (818), 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) [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-10-04 00:50:43,826 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.