/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 [2022-09-29 20:57:47,574 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 20:57:47,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 20:57:47,613 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 20:57:47,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 20:57:47,616 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 20:57:47,618 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 20:57:47,620 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 20:57:47,621 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 20:57:47,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 20:57:47,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 20:57:47,627 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 20:57:47,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 20:57:47,628 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 20:57:47,629 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 20:57:47,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 20:57:47,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 20:57:47,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 20:57:47,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 20:57:47,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 20:57:47,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 20:57:47,640 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 20:57:47,641 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 20:57:47,642 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 20:57:47,647 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 20:57:47,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 20:57:47,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 20:57:47,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 20:57:47,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 20:57:47,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-29 20:57:47,653 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 20:57:47,653 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 20:57:47,654 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 20:57:47,655 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 20:57:47,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 20:57:47,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 20:57:47,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 20:57:47,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 20:57:47,680 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 20:57:47,680 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 20:57:47,680 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 20:57:47,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 20:57:47,680 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 20:57:47,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 20:57:47,681 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 20:57:47,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 20:57:47,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 20:57:47,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 20:57:47,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 20:57:47,683 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 20:57:47,684 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 20:57:47,684 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 20:57:47,843 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 20:57:47,858 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 20:57:47,862 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 20:57:47,863 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 20:57:47,863 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 20:57:47,864 INFO L432 ainManager$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 [2022-09-29 20:57:47,865 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' [2022-09-29 20:57:47,912 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 20:57:47,913 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 20:57:47,914 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 20:57:47,914 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 20:57:47,914 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 20:57:47,925 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,926 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,949 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,950 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,967 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,976 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,979 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,984 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 20:57:47,985 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 20:57:47,985 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 20:57:47,985 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 20:57:47,986 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 29.09 08:57:47" (1/1) ... [2022-09-29 20:57:47,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 20:57:47,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:48,017 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) [2022-09-29 20:57:48,019 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 [2022-09-29 20:57:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-29 20:57:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-29 20:57:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-29 20:57:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-29 20:57:48,042 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 20:57:48,042 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 20:57:48,044 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-29 20:57:48,147 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 20:57:48,149 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 20:57:48,785 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 20:57:48,802 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 20:57:48,802 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 20:57:48,805 INFO L202 PluginConnector]: Adding new model chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 08:57:48 BoogieIcfgContainer [2022-09-29 20:57:48,805 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 20:57:48,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 20:57:48,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 20:57:48,816 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 20:57:48,816 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 29.09 08:57:47" (1/2) ... [2022-09-29 20:57:48,818 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b6cd494 and model type chl-nzb-file-symm.wvr.line263.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 08:57:48, skipping insertion in model container [2022-09-29 20:57:48,818 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 29.09 08:57:48" (2/2) ... [2022-09-29 20:57:48,819 INFO L112 eAbstractionObserver]: Analyzing ICFG chl-nzb-file-symm.wvr.line263.bpl [2022-09-29 20:57:48,826 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 20:57:48,833 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 20:57:48,833 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 20:57:48,833 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 20:57:49,017 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-29 20:57:49,075 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:57:49,076 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:57:49,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:49,078 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) [2022-09-29 20:57:49,079 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 [2022-09-29 20:57:49,103 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:57:49,109 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 20:57:49,113 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;@76d090f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:57:49,114 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:57:49,116 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-09-29 20:57:49,117 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 20:57:49,120 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:57:49,122 INFO L307 ceAbstractionStarter]: Result for error location thread1Err0ASSERT_VIOLATIONASSERT was SAFE (1/4) [2022-09-29 20:57:49,130 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:57:49,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:57:49,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:49,133 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) [2022-09-29 20:57:49,133 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 [2022-09-29 20:57:49,138 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:57:49,138 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 20:57:49,139 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;@76d090f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:57:49,139 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:57:49,224 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 20:57:49,224 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:57:49,225 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-09-29 20:57:49,233 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:57:49,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:57:49,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:49,273 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) [2022-09-29 20:57:49,280 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:57:49,280 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-09-29 20:57:49,281 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;@76d090f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:57:49,281 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:57:49,287 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 [2022-09-29 20:57:49,654 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-09-29 20:57:49,655 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-09-29 20:57:49,656 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/4) [2022-09-29 20:57:49,662 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 20:57:49,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 20:57:49,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:49,676 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) [2022-09-29 20:57:49,689 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 20:57:49,690 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread1Err0ASSERT_VIOLATIONASSERT ======== [2022-09-29 20:57:49,691 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;@76d090f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 20:57:49,691 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 20:57:49,712 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 [2022-09-29 20:57:49,785 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:49,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:49,789 INFO L85 PathProgramCache]: Analyzing trace with hash -273155661, now seen corresponding path program 1 times [2022-09-29 20:57:49,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:49,798 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535216997] [2022-09-29 20:57:49,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:49,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:49,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 20:57:50,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:50,069 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535216997] [2022-09-29 20:57:50,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535216997] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:50,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:57:50,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 20:57:50,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694112231] [2022-09-29 20:57:50,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:50,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 20:57:50,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:50,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 20:57:50,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 20:57:50,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,098 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:50,098 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) [2022-09-29 20:57:50,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,521 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 20:57:50,522 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:50,522 INFO L85 PathProgramCache]: Analyzing trace with hash -2061289054, now seen corresponding path program 1 times [2022-09-29 20:57:50,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:50,522 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951296520] [2022-09-29 20:57:50,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:50,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:50,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:50,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 20:57:50,714 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:50,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951296520] [2022-09-29 20:57:50,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1951296520] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:50,714 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:57:50,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:57:50,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502852649] [2022-09-29 20:57:50,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:50,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:57:50,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:50,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:57:50,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:57:50,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,717 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:50,717 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) [2022-09-29 20:57:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,717 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:50,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:50,950 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 20:57:50,951 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:50,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:50,951 INFO L85 PathProgramCache]: Analyzing trace with hash 467890288, now seen corresponding path program 1 times [2022-09-29 20:57:50,952 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:50,952 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922286741] [2022-09-29 20:57:50,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:50,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:51,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:51,119 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:57:51,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:51,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922286741] [2022-09-29 20:57:51,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922286741] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:57:51,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1476154077] [2022-09-29 20:57:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:51,121 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:57:51,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:51,130 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) [2022-09-29 20:57:51,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 20:57:51,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:51,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 6 conjunts are in the unsatisfiable core [2022-09-29 20:57:51,380 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:57:51,497 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:57:51,501 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:57:51,599 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-09-29 20:57:51,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1476154077] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:57:51,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:57:51,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 15 [2022-09-29 20:57:51,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912334330] [2022-09-29 20:57:51,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:57:51,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-09-29 20:57:51,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:51,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-09-29 20:57:51,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2022-09-29 20:57:51,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:51,607 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:51,607 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) [2022-09-29 20:57:51,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:51,607 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:51,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:51,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:51,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:51,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:51,944 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-29 20:57:52,135 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 [2022-09-29 20:57:52,136 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:52,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:52,137 INFO L85 PathProgramCache]: Analyzing trace with hash 909054576, now seen corresponding path program 2 times [2022-09-29 20:57:52,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:52,137 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631910487] [2022-09-29 20:57:52,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:52,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:52,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:52,328 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-09-29 20:57:52,329 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:52,329 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631910487] [2022-09-29 20:57:52,330 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631910487] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:57:52,330 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1599872858] [2022-09-29 20:57:52,330 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 20:57:52,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:57:52,331 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:52,339 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) [2022-09-29 20:57:52,342 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-09-29 20:57:52,519 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 20:57:52,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 20:57:52,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 35 conjunts are in the unsatisfiable core [2022-09-29 20:57:52,535 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:57:52,613 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 [2022-09-29 20:57:53,272 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2022-09-29 20:57:53,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:57:53,273 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1599872858] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:53,273 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:57:53,273 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [11] total 21 [2022-09-29 20:57:53,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2084431115] [2022-09-29 20:57:53,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:53,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-29 20:57:53,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:53,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-29 20:57:53,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2022-09-29 20:57:53,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:53,277 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:53,278 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) [2022-09-29 20:57:53,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:53,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:53,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:53,278 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:54,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:54,211 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-09-29 20:57:54,384 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 [2022-09-29 20:57:54,384 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:54,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:54,385 INFO L85 PathProgramCache]: Analyzing trace with hash -304065484, now seen corresponding path program 1 times [2022-09-29 20:57:54,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:54,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149534399] [2022-09-29 20:57:54,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:54,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:54,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:54,559 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-09-29 20:57:54,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:54,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149534399] [2022-09-29 20:57:54,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149534399] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:57:54,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1041022010] [2022-09-29 20:57:54,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:54,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:57:54,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:54,562 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) [2022-09-29 20:57:54,563 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-09-29 20:57:54,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:54,729 INFO L263 TraceCheckSpWp]: Trace formula consists of 949 conjuncts, 10 conjunts are in the unsatisfiable core [2022-09-29 20:57:54,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:57:54,882 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-09-29 20:57:54,883 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:57:55,000 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2022-09-29 20:57:55,000 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1041022010] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:57:55,000 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:57:55,000 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 22 [2022-09-29 20:57:55,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026949884] [2022-09-29 20:57:55,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:57:55,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-09-29 20:57:55,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:55,002 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-09-29 20:57:55,002 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=348, Unknown=0, NotChecked=0, Total=462 [2022-09-29 20:57:55,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,003 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:55,004 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) [2022-09-29 20:57:55,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:55,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:55,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:55,004 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:55,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:55,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-09-29 20:57:55,683 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 [2022-09-29 20:57:55,684 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:55,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:55,685 INFO L85 PathProgramCache]: Analyzing trace with hash -932313548, now seen corresponding path program 2 times [2022-09-29 20:57:55,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:55,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430220407] [2022-09-29 20:57:55,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:55,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:55,879 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 324 trivial. 0 not checked. [2022-09-29 20:57:55,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:55,880 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430220407] [2022-09-29 20:57:55,880 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430220407] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:55,880 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:57:55,880 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-29 20:57:55,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745622478] [2022-09-29 20:57:55,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:55,881 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 20:57:55,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:55,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 20:57:55,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-09-29 20:57:55,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,882 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:55,882 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) [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:55,883 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:56,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:56,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:56,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-29 20:57:56,163 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:56,164 INFO L85 PathProgramCache]: Analyzing trace with hash 1889418156, now seen corresponding path program 1 times [2022-09-29 20:57:56,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:56,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507067757] [2022-09-29 20:57:56,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:56,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:56,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:56,276 INFO L134 CoverageAnalysis]: Checked inductivity of 377 backedges. 70 proven. 0 refuted. 0 times theorem prover too weak. 307 trivial. 0 not checked. [2022-09-29 20:57:56,277 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:56,277 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507067757] [2022-09-29 20:57:56,277 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507067757] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:56,277 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:57:56,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:57:56,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165768694] [2022-09-29 20:57:56,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:56,278 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:57:56,278 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:56,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:57:56,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:57:56,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,279 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:56,279 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) [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:56,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:56,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:56,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:56,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-29 20:57:56,547 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:56,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:56,548 INFO L85 PathProgramCache]: Analyzing trace with hash -473659340, now seen corresponding path program 1 times [2022-09-29 20:57:56,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:56,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946721598] [2022-09-29 20:57:56,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:56,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:56,869 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 0 proven. 98 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:57:56,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:56,869 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946721598] [2022-09-29 20:57:56,870 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946721598] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:57:56,870 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349491440] [2022-09-29 20:57:56,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:56,870 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:57:56,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:57:56,876 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) [2022-09-29 20:57:56,877 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-09-29 20:57:57,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:57,073 INFO L263 TraceCheckSpWp]: Trace formula consists of 985 conjuncts, 11 conjunts are in the unsatisfiable core [2022-09-29 20:57:57,080 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:57:57,183 INFO L134 CoverageAnalysis]: Checked inductivity of 368 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 290 trivial. 0 not checked. [2022-09-29 20:57:57,183 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:57:57,183 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349491440] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:57,183 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:57:57,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [15] total 21 [2022-09-29 20:57:57,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687306958] [2022-09-29 20:57:57,184 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:57,185 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-29 20:57:57,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:57,185 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-29 20:57:57,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=376, Unknown=0, NotChecked=0, Total=420 [2022-09-29 20:57:57,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,186 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:57,187 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) [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:57,187 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:57,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:57,450 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:57:57,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-09-29 20:57:57,654 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 [2022-09-29 20:57:57,655 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:57:57,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:57:57,655 INFO L85 PathProgramCache]: Analyzing trace with hash 2001484204, now seen corresponding path program 1 times [2022-09-29 20:57:57,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:57:57,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204275118] [2022-09-29 20:57:57,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:57:57,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:57:57,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:57:57,745 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 273 trivial. 0 not checked. [2022-09-29 20:57:57,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:57:57,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204275118] [2022-09-29 20:57:57,746 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204275118] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:57:57,746 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 20:57:57,746 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-29 20:57:57,746 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883720914] [2022-09-29 20:57:57,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:57:57,747 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:57:57,747 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:57:57,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:57:57,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-09-29 20:57:57,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,748 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:57:57,748 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) [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:57:57,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:57:57,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2022-09-29 20:57:57,749 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:04,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:04,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:04,039 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-29 20:58:04,039 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:58:04,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:58:04,040 INFO L85 PathProgramCache]: Analyzing trace with hash -1974245886, now seen corresponding path program 1 times [2022-09-29 20:58:04,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:58:04,040 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519623906] [2022-09-29 20:58:04,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:04,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:58:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:04,386 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 0 proven. 83 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:04,386 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:58:04,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519623906] [2022-09-29 20:58:04,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519623906] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:58:04,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1053374717] [2022-09-29 20:58:04,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:04,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:58:04,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:58:04,389 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) [2022-09-29 20:58:04,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-09-29 20:58:04,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:04,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 983 conjuncts, 18 conjunts are in the unsatisfiable core [2022-09-29 20:58:04,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:58:05,014 INFO L134 CoverageAnalysis]: Checked inductivity of 353 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:05,014 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:58:05,014 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1053374717] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:58:05,014 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:58:05,014 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [15] total 24 [2022-09-29 20:58:05,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [279342124] [2022-09-29 20:58:05,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:58:05,016 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 20:58:05,016 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:58:05,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 20:58:05,017 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=500, Unknown=0, NotChecked=0, Total=552 [2022-09-29 20:58:05,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:05,018 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:58:05,018 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) [2022-09-29 20:58:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:05,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:05,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:14,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:14,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:14,937 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-09-29 20:58:15,118 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 [2022-09-29 20:58:15,119 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:58:15,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:58:15,119 INFO L85 PathProgramCache]: Analyzing trace with hash 936544788, now seen corresponding path program 1 times [2022-09-29 20:58:15,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:58:15,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181678412] [2022-09-29 20:58:15,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:15,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:58:15,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:15,479 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:15,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:58:15,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181678412] [2022-09-29 20:58:15,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181678412] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:58:15,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1578144979] [2022-09-29 20:58:15,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:15,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:58:15,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:58:15,481 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) [2022-09-29 20:58:15,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-09-29 20:58:15,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:15,670 INFO L263 TraceCheckSpWp]: Trace formula consists of 1057 conjuncts, 39 conjunts are in the unsatisfiable core [2022-09-29 20:58:15,678 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:58:15,710 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 [2022-09-29 20:58:16,728 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:16,728 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 20:58:17,997 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 0 proven. 116 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:17,997 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1578144979] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 20:58:17,997 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 20:58:17,997 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 31 [2022-09-29 20:58:17,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588476416] [2022-09-29 20:58:17,998 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 20:58:17,999 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-09-29 20:58:17,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:58:17,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-09-29 20:58:18,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=91, Invalid=901, Unknown=0, NotChecked=0, Total=992 [2022-09-29 20:58:18,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:18,001 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:58:18,001 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) [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:18,002 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:41,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:41,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:41,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:41,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:41,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-09-29 20:58:42,183 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 [2022-09-29 20:58:42,184 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting thread1Err0ASSERT_VIOLATIONASSERT === [thread1Err0ASSERT_VIOLATIONASSERT] === [2022-09-29 20:58:42,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 20:58:42,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1065477980, now seen corresponding path program 2 times [2022-09-29 20:58:42,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 20:58:42,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368326598] [2022-09-29 20:58:42,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 20:58:42,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 20:58:42,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 20:58:42,750 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 0 proven. 744 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2022-09-29 20:58:42,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 20:58:42,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368326598] [2022-09-29 20:58:42,751 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368326598] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 20:58:42,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1469820244] [2022-09-29 20:58:42,751 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-09-29 20:58:42,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 20:58:42,751 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 20:58:42,759 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) [2022-09-29 20:58:42,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-09-29 20:58:42,920 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-09-29 20:58:42,921 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-09-29 20:58:42,924 INFO L263 TraceCheckSpWp]: Trace formula consists of 566 conjuncts, 24 conjunts are in the unsatisfiable core [2022-09-29 20:58:42,933 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 20:58:42,940 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 [2022-09-29 20:58:43,253 INFO L134 CoverageAnalysis]: Checked inductivity of 1014 backedges. 288 proven. 0 refuted. 0 times theorem prover too weak. 726 trivial. 0 not checked. [2022-09-29 20:58:43,253 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 20:58:43,253 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1469820244] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 20:58:43,253 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 20:58:43,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [19] total 22 [2022-09-29 20:58:43,254 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127569588] [2022-09-29 20:58:43,254 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 20:58:43,255 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-29 20:58:43,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 20:58:43,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-29 20:58:43,255 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2022-09-29 20:58:43,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:43,256 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 20:58:43,256 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) [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-09-29 20:58:43,256 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:43,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-09-29 20:58:43,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-09-29 20:58:43,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-09-29 20:58:43,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-09-29 20:58:43,257 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.