/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/chl-nzb-file-symm.wvr.line263.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 13:48:58,550 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 13:48:58,552 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 13:48:58,581 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 13:48:58,581 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 13:48:58,583 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 13:48:58,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 13:48:58,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 13:48:58,587 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 13:48:58,592 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 13:48:58,593 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 13:48:58,594 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 13:48:58,594 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 13:48:58,595 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 13:48:58,596 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 13:48:58,597 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 13:48:58,597 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 13:48:58,598 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 13:48:58,599 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 13:48:58,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 13:48:58,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 13:48:58,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 13:48:58,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 13:48:58,605 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 13:48:58,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 13:48:58,608 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 13:48:58,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 13:48:58,609 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 13:48:58,610 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 13:48:58,611 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-10-03 13:48:58,615 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 13:48:58,616 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 13:48:58,617 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 13:48:58,618 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 13:48:58,643 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 13:48:58,644 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 13:48:58,645 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 13:48:58,645 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 13:48:58,645 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 13:48:58,646 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 13:48:58,646 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 13:48:58,646 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 13:48:58,646 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 13:48:58,646 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 13:48:58,647 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 13:48:58,648 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 13:48:58,649 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 13:48:58,649 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 13:48:58,649 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 13:48:58,649 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 13:48:58,649 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 13:48:58,650 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 13:48:58,650 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 13:48:58,650 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:48:58,650 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 13:48:58,651 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 13:48:58,652 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 13:48:58,652 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 13:48:58,652 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 13:48:58,652 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 13:48:58,652 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 13:48:58,652 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 13:48:58,883 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 13:48:58,913 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 13:48:58,915 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 13:48:58,916 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 13:48:58,917 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 13:48:58,918 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-symm.wvr.line263.bpl [2022-10-03 13:48:58,918 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/chl-nzb-file-symm.wvr.line263.bpl' [2022-10-03 13:48:58,976 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 13:48:58,977 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 13:48:58,978 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 13:48:58,978 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 13:48:58,978 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 13:48:58,992 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:58,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,054 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 13:48:59,086 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 13:48:59,086 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 13:48:59,086 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 13:48:59,094 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/1) ... [2022-10-03 13:48:59,100 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:48:59,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:48:59,124 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) [2022-10-03 13:48:59,130 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 [2022-10-03 13:48:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-10-03 13:48:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-10-03 13:48:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-10-03 13:48:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-10-03 13:48:59,174 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 13:48:59,174 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 13:48:59,176 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 13:48:59,273 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 13:48:59,274 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 13:49:00,013 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 13:49:00,037 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 13:49:00,037 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 13:49:00,040 INFO L202 PluginConnector]: Adding new model chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:49:00 BoogieIcfgContainer [2022-10-03 13:49:00,040 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 13:49:00,042 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 13:49:00,042 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 13:49:00,051 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 13:49:00,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:48:58" (1/2) ... [2022-10-03 13:49:00,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7323702e and model type chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:49:00, skipping insertion in model container [2022-10-03 13:49:00,053 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:49:00" (2/2) ... [2022-10-03 13:49:00,060 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.line263.bpl [2022-10-03 13:49:00,068 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 13:49:00,076 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 13:49:00,076 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 13:49:00,076 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 13:49:00,293 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-03 13:49:00,357 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:49:00,357 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:49:00,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:00,360 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) [2022-10-03 13:49:00,361 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 [2022-10-03 13:49:00,389 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:49:00,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:49:00,401 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;@57fe4726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:49:00,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:49:00,404 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 13:49:00,406 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 13:49:00,409 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:49:00,412 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/4) [2022-10-03 13:49:00,423 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:49:00,424 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:49:00,424 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:00,428 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) [2022-10-03 13:49:00,429 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 [2022-10-03 13:49:00,437 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:49:00,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:49:00,439 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;@57fe4726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:49:00,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:49:00,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:49:00,507 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:49:00,507 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-03 13:49:00,516 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:49:00,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:49:00,516 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:00,553 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) [2022-10-03 13:49:00,562 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:49:00,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:49:00,563 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;@57fe4726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:49:00,563 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:49:00,585 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 [2022-10-03 13:49:01,125 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:49:01,128 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:49:01,128 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/4) [2022-10-03 13:49:01,143 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:49:01,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:49:01,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:01,145 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) [2022-10-03 13:49:01,147 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 [2022-10-03 13:49:01,151 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:49:01,151 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:49:01,152 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;@57fe4726, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:49:01,152 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:49:01,300 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:01,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:01,305 INFO L85 PathProgramCache]: Analyzing trace with hash -273155661, now seen corresponding path program 1 times [2022-10-03 13:49:01,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:01,316 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347697572] [2022-10-03 13:49:01,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:01,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:01,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:01,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:49:01,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:01,644 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347697572] [2022-10-03 13:49:01,645 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347697572] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:01,645 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:49:01,645 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 13:49:01,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456955887] [2022-10-03 13:49:01,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:01,657 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 13:49:01,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:01,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 13:49:01,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 13:49:01,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:01,683 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:01,684 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 159.5) internal successors, (319), 2 states have internal predecessors, (319), 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) [2022-10-03 13:49:01,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,220 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 13:49:02,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:02,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:02,221 INFO L85 PathProgramCache]: Analyzing trace with hash -2061289054, now seen corresponding path program 1 times [2022-10-03 13:49:02,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:02,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200896733] [2022-10-03 13:49:02,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:02,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:02,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:02,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:49:02,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:02,496 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200896733] [2022-10-03 13:49:02,496 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200896733] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:02,496 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:49:02,496 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 13:49:02,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238244720] [2022-10-03 13:49:02,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:02,497 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 13:49:02,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:02,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 13:49:02,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 13:49:02,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,499 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:02,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 62.6) internal successors, (313), 5 states have internal predecessors, (313), 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) [2022-10-03 13:49:02,499 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:02,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:02,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 13:49:02,841 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:02,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:02,841 INFO L85 PathProgramCache]: Analyzing trace with hash 467890288, now seen corresponding path program 1 times [2022-10-03 13:49:02,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:02,842 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180541744] [2022-10-03 13:49:02,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:02,842 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:02,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:03,026 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-03 13:49:03,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:03,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180541744] [2022-10-03 13:49:03,027 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180541744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:03,027 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727929729] [2022-10-03 13:49:03,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:03,028 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:03,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:03,035 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) [2022-10-03 13:49:03,041 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 13:49:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:03,269 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-03 13:49:03,289 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-03 13:49:03,443 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:49:03,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-03 13:49:03,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727929729] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:49:03,561 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:49:03,561 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-10-03 13:49:03,561 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [963744703] [2022-10-03 13:49:03,561 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:49:03,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 13:49:03,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 13:49:03,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-10-03 13:49:03,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:03,565 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:03,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 26.666666666666668) internal successors, (400), 15 states have internal predecessors, (400), 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) [2022-10-03 13:49:03,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:03,565 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:03,566 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:04,005 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:04,178 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 [2022-10-03 13:49:04,179 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:04,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:04,179 INFO L85 PathProgramCache]: Analyzing trace with hash 909054576, now seen corresponding path program 2 times [2022-10-03 13:49:04,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:04,180 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [387776584] [2022-10-03 13:49:04,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:04,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:04,399 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-03 13:49:04,399 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:04,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [387776584] [2022-10-03 13:49:04,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [387776584] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:04,401 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1045013417] [2022-10-03 13:49:04,401 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 13:49:04,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:04,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:04,403 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) [2022-10-03 13:49:04,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 13:49:04,572 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 13:49:04,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:49:04,575 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 35 conjunts are in the unsatisfiable core [2022-10-03 13:49:04,587 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:04,686 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 [2022-10-03 13:49:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-10-03 13:49:05,614 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:49:05,614 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1045013417] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:05,614 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:49:05,614 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 21 [2022-10-03 13:49:05,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079830824] [2022-10-03 13:49:05,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:05,616 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-03 13:49:05,616 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:05,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-03 13:49:05,618 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-10-03 13:49:05,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:05,619 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:05,619 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 26.076923076923077) internal successors, (339), 14 states have internal predecessors, (339), 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) [2022-10-03 13:49:05,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:05,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:05,619 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:05,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:06,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:06,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:07,016 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 [2022-10-03 13:49:07,016 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:07,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:07,017 INFO L85 PathProgramCache]: Analyzing trace with hash -304065484, now seen corresponding path program 1 times [2022-10-03 13:49:07,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:07,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [13221020] [2022-10-03 13:49:07,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:07,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:07,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:07,227 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-10-03 13:49:07,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:07,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [13221020] [2022-10-03 13:49:07,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [13221020] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:07,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982546828] [2022-10-03 13:49:07,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:07,228 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:07,229 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:07,230 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) [2022-10-03 13:49:07,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-03 13:49:07,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:07,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 10 conjunts are in the unsatisfiable core [2022-10-03 13:49:07,463 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:07,683 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-10-03 13:49:07,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:49:07,836 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-10-03 13:49:07,836 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982546828] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:49:07,837 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:49:07,837 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-10-03 13:49:07,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359434276] [2022-10-03 13:49:07,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:49:07,839 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-10-03 13:49:07,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:07,839 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-10-03 13:49:07,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-10-03 13:49:07,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:07,841 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:07,841 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 21.318181818181817) internal successors, (469), 22 states have internal predecessors, (469), 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) [2022-10-03 13:49:07,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:07,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:07,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:07,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:07,842 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:08,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:08,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:08,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:08,439 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:08,615 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 [2022-10-03 13:49:08,616 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:08,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:08,616 INFO L85 PathProgramCache]: Analyzing trace with hash -932313548, now seen corresponding path program 2 times [2022-10-03 13:49:08,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:08,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199788312] [2022-10-03 13:49:08,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:08,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:08,866 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-10-03 13:49:08,866 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:08,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199788312] [2022-10-03 13:49:08,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199788312] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:08,867 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:49:08,867 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-03 13:49:08,867 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633732343] [2022-10-03 13:49:08,867 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:08,868 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-03 13:49:08,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:08,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-03 13:49:08,868 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-10-03 13:49:08,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:08,869 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:08,870 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.714285714285715) internal successors, (418), 7 states have internal predecessors, (418), 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) [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:08,870 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:09,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:09,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-03 13:49:09,211 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:09,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:09,212 INFO L85 PathProgramCache]: Analyzing trace with hash 1889418156, now seen corresponding path program 1 times [2022-10-03 13:49:09,213 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:09,213 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098955824] [2022-10-03 13:49:09,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:09,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:09,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:09,370 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-10-03 13:49:09,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:09,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098955824] [2022-10-03 13:49:09,371 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098955824] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:09,371 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:49:09,371 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 13:49:09,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408684325] [2022-10-03 13:49:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:09,372 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 13:49:09,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:09,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 13:49:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 13:49:09,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,373 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:09,374 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.4) internal successors, (417), 5 states have internal predecessors, (417), 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) [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:09,374 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:09,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:09,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:09,659 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-03 13:49:09,659 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:09,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:09,660 INFO L85 PathProgramCache]: Analyzing trace with hash -473659340, now seen corresponding path program 1 times [2022-10-03 13:49:09,660 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:09,660 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477768725] [2022-10-03 13:49:09,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:09,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:09,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:10,089 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:10,089 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:10,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477768725] [2022-10-03 13:49:10,090 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477768725] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:10,090 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740120986] [2022-10-03 13:49:10,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:10,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:10,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:10,092 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) [2022-10-03 13:49:10,103 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-03 13:49:10,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:10,357 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-03 13:49:10,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:10,464 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-10-03 13:49:10,464 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:49:10,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740120986] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:10,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:49:10,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2022-10-03 13:49:10,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34698529] [2022-10-03 13:49:10,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:10,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-03 13:49:10,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:10,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-03 13:49:10,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-10-03 13:49:10,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:10,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:10,468 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 59.42857142857143) internal successors, (416), 7 states have internal predecessors, (416), 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) [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:10,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:10,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:10,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-03 13:49:10,782 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:10,964 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-03 13:49:10,964 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:10,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:10,965 INFO L85 PathProgramCache]: Analyzing trace with hash 2001484204, now seen corresponding path program 1 times [2022-10-03 13:49:10,965 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:10,965 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726608033] [2022-10-03 13:49:10,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:10,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:11,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:11,096 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-10-03 13:49:11,096 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:11,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726608033] [2022-10-03 13:49:11,099 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726608033] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:11,100 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:49:11,100 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-03 13:49:11,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184528740] [2022-10-03 13:49:11,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:11,101 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 13:49:11,101 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:11,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 13:49:11,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-03 13:49:11,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:11,103 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:11,104 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 83.0) internal successors, (415), 5 states have internal predecessors, (415), 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) [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:11,104 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:11,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:11,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-10-03 13:49:11,105 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:18,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:18,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-03 13:49:18,295 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:18,295 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:18,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1974245886, now seen corresponding path program 1 times [2022-10-03 13:49:18,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:18,296 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839251246] [2022-10-03 13:49:18,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:18,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:18,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:18,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:18,695 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839251246] [2022-10-03 13:49:18,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839251246] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:18,696 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1693410620] [2022-10-03 13:49:18,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:18,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:18,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:18,700 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:49:18,728 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-03 13:49:18,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:18,929 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-03 13:49:18,936 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:19,487 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:19,487 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:49:19,487 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1693410620] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:19,488 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:49:19,488 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 24 [2022-10-03 13:49:19,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608467131] [2022-10-03 13:49:19,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:19,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-03 13:49:19,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:19,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-03 13:49:19,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-10-03 13:49:19,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:19,491 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:19,491 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 43.4) internal successors, (434), 10 states have internal predecessors, (434), 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) [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:19,491 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:19,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:19,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:19,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:19,492 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:29,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:29,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:49:29,671 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:29,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-03 13:49:29,853 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:29,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:29,854 INFO L85 PathProgramCache]: Analyzing trace with hash 936544788, now seen corresponding path program 1 times [2022-10-03 13:49:29,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:29,854 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529536873] [2022-10-03 13:49:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:29,854 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:29,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:30,255 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:30,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529536873] [2022-10-03 13:49:30,255 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529536873] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:30,255 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [126227148] [2022-10-03 13:49:30,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:30,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:30,256 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:30,260 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:49:30,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-03 13:49:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:30,484 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-03 13:49:30,491 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:30,531 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 [2022-10-03 13:49:31,910 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:31,911 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:49:33,482 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:33,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [126227148] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:49:33,483 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:49:33,483 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-10-03 13:49:33,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904669860] [2022-10-03 13:49:33,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:49:33,485 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-03 13:49:33,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:33,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-03 13:49:33,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=901, Unknown=0, NotChecked=0, Total=992 [2022-10-03 13:49:33,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:33,487 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:33,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 29.322580645161292) internal successors, (909), 32 states have internal predecessors, (909), 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) [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:49:33,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:58,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:49:58,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 13:49:58,559 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-03 13:49:58,732 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-03 13:49:58,733 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:49:58,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:49:58,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1065477980, now seen corresponding path program 2 times [2022-10-03 13:49:58,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:49:58,733 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710012922] [2022-10-03 13:49:58,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:49:58,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:49:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:49:59,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 0 proven. 744 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-10-03 13:49:59,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:49:59,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710012922] [2022-10-03 13:49:59,403 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710012922] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:49:59,403 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945164156] [2022-10-03 13:49:59,404 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 13:49:59,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:49:59,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:49:59,405 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:49:59,410 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-03 13:49:59,591 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 13:49:59,591 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:49:59,594 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-03 13:49:59,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:49:59,615 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 [2022-10-03 13:49:59,946 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-10-03 13:49:59,946 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:49:59,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945164156] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:49:59,947 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:49:59,947 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 22 [2022-10-03 13:49:59,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868785523] [2022-10-03 13:49:59,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:49:59,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-03 13:49:59,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:49:59,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-03 13:49:59,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-10-03 13:49:59,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:59,950 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:49:59,950 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 113.0) internal successors, (452), 5 states have internal predecessors, (452), 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) [2022-10-03 13:49:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:49:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-10-03 13:49:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:49:59,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-10-03 13:49:59,951 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.