/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/ring_2w1r-2.line524.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 02:56:36,890 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 02:56:36,892 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 02:56:36,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 02:56:36,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 02:56:36,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 02:56:36,932 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 02:56:36,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 02:56:36,935 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 02:56:36,939 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 02:56:36,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 02:56:36,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 02:56:36,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 02:56:36,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 02:56:36,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 02:56:36,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 02:56:36,949 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 02:56:36,950 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 02:56:36,952 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 02:56:36,956 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 02:56:36,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 02:56:36,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 02:56:36,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 02:56:36,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 02:56:36,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 02:56:36,973 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 02:56:36,974 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 02:56:36,974 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 02:56:36,975 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 02:56:37,001 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 02:56:37,001 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 02:56:37,002 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 02:56:37,002 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 02:56:37,002 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 02:56:37,002 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 02:56:37,003 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 02:56:37,003 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 02:56:37,003 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 02:56:37,003 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 02:56:37,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 02:56:37,005 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:56:37,005 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 02:56:37,005 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 02:56:37,006 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 02:56:37,007 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 02:56:37,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 02:56:37,240 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 02:56:37,242 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 02:56:37,243 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 02:56:37,249 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 02:56:37,250 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-2.line524.bpl [2022-10-04 02:56:37,251 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/ring_2w1r-2.line524.bpl' [2022-10-04 02:56:37,325 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 02:56:37,327 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 02:56:37,328 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 02:56:37,328 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 02:56:37,328 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 02:56:37,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,392 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 02:56:37,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 02:56:37,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 02:56:37,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 02:56:37,422 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/1) ... [2022-10-04 02:56:37,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 02:56:37,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:56:37,464 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-04 02:56:37,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-04 02:56:37,500 INFO L130 BoogieDeclarations]: Found specification of procedure reader_two [2022-10-04 02:56:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_two [2022-10-04 02:56:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure writer_fn [2022-10-04 02:56:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure writer_fn [2022-10-04 02:56:37,501 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 02:56:37,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 02:56:37,502 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 02:56:37,613 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 02:56:37,614 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 02:56:38,177 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 02:56:38,189 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 02:56:38,189 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-10-04 02:56:38,191 INFO L202 PluginConnector]: Adding new model ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:56:38 BoogieIcfgContainer [2022-10-04 02:56:38,191 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 02:56:38,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 02:56:38,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 02:56:38,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 02:56:38,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:56:37" (1/2) ... [2022-10-04 02:56:38,196 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fbef115 and model type ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:56:38, skipping insertion in model container [2022-10-04 02:56:38,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring_2w1r-2.line524.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:56:38" (2/2) ... [2022-10-04 02:56:38,197 INFO L112 eAbstractionObserver]: Analyzing ICFG ring_2w1r-2.line524.bpl [2022-10-04 02:56:38,202 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 02:56:38,209 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 02:56:38,209 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 02:56:38,209 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 02:56:38,308 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 02:56:38,370 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:56:38,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:56:38,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:56:38,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:56:38,384 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-04 02:56:38,419 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:56:38,442 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:56:38,447 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;@f32aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:56:38,448 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:56:38,800 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:56:38,805 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:56:38,806 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/4) [2022-10-04 02:56:38,812 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:56:38,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:56:38,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:56:38,814 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:56:38,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-04 02:56:38,819 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:56:38,820 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 02:56:38,820 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;@f32aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:56:38,821 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:56:38,824 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 02:56:38,825 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:56:38,828 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/4) [2022-10-04 02:56:38,835 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:56:38,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:56:38,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:56:38,872 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:56:38,895 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-04 02:56:38,899 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:56:38,899 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:56:38,900 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;@f32aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:56:38,900 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:56:38,900 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-04 02:56:38,901 INFO L805 garLoopResultBuilder]: Registering result SAFE for location writer_fnErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 02:56:38,901 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 02:56:38,901 INFO L307 ceAbstractionStarter]: Result for error location writer_fnErr0ASSERT_VIOLATIONASSERT was SAFE (3/4) [2022-10-04 02:56:38,906 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 02:56:38,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 02:56:38,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:56:38,907 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 02:56:38,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (5)] Waiting until timeout for monitored process [2022-10-04 02:56:38,911 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 02:56:38,911 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == writer_fnErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 02:56:38,912 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;@f32aee, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 02:56:38,912 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 02:56:42,901 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:56:42,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:56:42,905 INFO L85 PathProgramCache]: Analyzing trace with hash -362654435, now seen corresponding path program 1 times [2022-10-04 02:56:42,911 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:56:42,911 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769065348] [2022-10-04 02:56:42,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:56:42,912 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:56:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:56:43,642 INFO L134 CoverageAnalysis]: Checked inductivity of 300 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2022-10-04 02:56:43,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:56:43,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769065348] [2022-10-04 02:56:43,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769065348] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:56:43,659 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:56:43,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 02:56:43,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843332535] [2022-10-04 02:56:43,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:56:43,669 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 02:56:43,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:56:43,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 02:56:43,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 02:56:43,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:43,729 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:56:43,731 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 195.5) internal successors, (391), 2 states have internal predecessors, (391), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:56:43,731 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:43,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:43,767 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 02:56:43,767 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:56:43,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:56:43,768 INFO L85 PathProgramCache]: Analyzing trace with hash -613601106, now seen corresponding path program 1 times [2022-10-04 02:56:43,768 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:56:43,769 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146767568] [2022-10-04 02:56:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:56:43,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:56:43,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:56:43,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:56:43,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:56:43,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146767568] [2022-10-04 02:56:43,958 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146767568] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:56:43,958 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:56:43,958 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-10-04 02:56:43,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454408103] [2022-10-04 02:56:43,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:56:43,960 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-04 02:56:43,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:56:43,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-04 02:56:43,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2022-10-04 02:56:43,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:43,962 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:56:43,963 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 16.666666666666668) internal successors, (150), 10 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:56:43,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:43,963 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:53,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:53,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:56:53,654 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 02:56:53,654 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:56:53,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:56:53,655 INFO L85 PathProgramCache]: Analyzing trace with hash -1411944865, now seen corresponding path program 1 times [2022-10-04 02:56:53,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:56:53,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1313169609] [2022-10-04 02:56:53,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:56:53,655 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:56:53,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:56:53,882 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 02:56:53,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:56:53,883 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1313169609] [2022-10-04 02:56:53,883 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1313169609] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 02:56:53,883 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 02:56:53,883 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 02:56:53,883 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981477826] [2022-10-04 02:56:53,883 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 02:56:53,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 02:56:53,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:56:53,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 02:56:53,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 02:56:53,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:53,885 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:56:53,885 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.0) internal successors, (354), 3 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:56:53,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:56:53,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:56:53,885 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:57:03,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:57:03,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 02:57:03,235 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:57:03,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:57:03,235 INFO L85 PathProgramCache]: Analyzing trace with hash 1416653696, now seen corresponding path program 1 times [2022-10-04 02:57:03,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:57:03,237 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084466204] [2022-10-04 02:57:03,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:57:03,243 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:57:03,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:57:03,557 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 157 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:03,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:57:03,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1084466204] [2022-10-04 02:57:03,558 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1084466204] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:57:03,558 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716742588] [2022-10-04 02:57:03,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:57:03,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:57:03,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:57:03,603 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:57:03,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-04 02:57:03,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:57:03,824 INFO L263 TraceCheckSpWp]: Trace formula consists of 975 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-04 02:57:03,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:57:04,044 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 157 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:04,044 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:57:04,229 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 157 proven. 1 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:04,229 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716742588] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:57:04,229 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:57:04,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-04 02:57:04,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [210150127] [2022-10-04 02:57:04,230 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:57:04,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 02:57:04,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:57:04,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 02:57:04,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-04 02:57:04,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:04,232 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:57:04,232 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.14285714285714) internal successors, (631), 7 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:57:04,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:04,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:57:04,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:57:04,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:57:25,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:57:25,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:57:25,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-04 02:57:25,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:57:25,693 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:57:25,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:57:25,694 INFO L85 PathProgramCache]: Analyzing trace with hash 572930616, now seen corresponding path program 2 times [2022-10-04 02:57:25,694 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:57:25,694 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500680134] [2022-10-04 02:57:25,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:57:25,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:57:25,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:57:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 157 proven. 382 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:25,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:57:25,991 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500680134] [2022-10-04 02:57:25,991 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500680134] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:57:25,992 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1896068359] [2022-10-04 02:57:25,992 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 02:57:25,992 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:57:25,992 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:57:26,000 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:57:26,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-04 02:57:26,238 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-04 02:57:26,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 02:57:26,244 INFO L263 TraceCheckSpWp]: Trace formula consists of 1377 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-04 02:57:26,253 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:57:26,627 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 157 proven. 382 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:26,627 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 02:57:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 601 backedges. 157 proven. 382 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2022-10-04 02:57:27,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1896068359] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 02:57:27,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 02:57:27,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-10-04 02:57:27,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025861217] [2022-10-04 02:57:27,012 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 02:57:27,013 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-04 02:57:27,013 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 02:57:27,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-04 02:57:27,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2022-10-04 02:57:27,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:27,015 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 02:57:27,016 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 86.0) internal successors, (946), 11 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 02:57:27,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:57:27,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:57:27,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:57:27,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:57:27,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:58:14,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 02:58:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-04 02:58:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 02:58:14,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-04 02:58:14,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-04 02:58:14,562 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-04 02:58:14,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:58:14,765 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting writer_fnErr0ASSERT_VIOLATIONASSERT === [writer_fnErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 02:58:14,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 02:58:14,766 INFO L85 PathProgramCache]: Analyzing trace with hash -435066824, now seen corresponding path program 3 times [2022-10-04 02:58:14,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 02:58:14,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670045040] [2022-10-04 02:58:14,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 02:58:14,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 02:58:16,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 02:58:28,265 INFO L134 CoverageAnalysis]: Checked inductivity of 1991 backedges. 678 proven. 212 refuted. 0 times theorem prover too weak. 1101 trivial. 0 not checked. [2022-10-04 02:58:28,266 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 02:58:28,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670045040] [2022-10-04 02:58:28,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670045040] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 02:58:28,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166477651] [2022-10-04 02:58:28,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-04 02:58:28,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 02:58:28,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 02:58:28,268 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 02:58:28,269 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-04 02:58:31,526 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-10-04 02:58:31,527 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 02:58:31,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 1913 conjuncts, 836 conjunts are in the unsatisfiable core [2022-10-04 02:58:31,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 02:58:31,751 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-04 02:58:32,091 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-10-04 02:58:32,091 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 14 [2022-10-04 02:58:32,676 INFO L356 Elim1Store]: treesize reduction 44, result has 30.2 percent of original size [2022-10-04 02:58:32,677 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 22 treesize of output 33 [2022-10-04 02:58:32,985 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-04 02:58:33,873 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 9 [2022-10-04 02:58:34,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:34,469 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 20 [2022-10-04 02:58:35,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-10-04 02:58:35,688 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 23 [2022-10-04 02:58:40,337 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:40,338 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:40,351 INFO L356 Elim1Store]: treesize reduction 42, result has 28.8 percent of original size [2022-10-04 02:58:40,351 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 40 [2022-10-04 02:58:46,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:46,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:46,884 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 41 [2022-10-04 02:58:52,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:52,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:52,873 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:52,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:52,898 INFO L356 Elim1Store]: treesize reduction 66, result has 28.3 percent of original size [2022-10-04 02:58:52,900 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 59 treesize of output 55 [2022-10-04 02:58:55,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:55,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:55,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:55,711 INFO L356 Elim1Store]: treesize reduction 91, result has 22.2 percent of original size [2022-10-04 02:58:55,711 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 233 treesize of output 167 [2022-10-04 02:58:56,255 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:56,256 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:56,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:56,257 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:58:56,257 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:56,258 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:58:56,259 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 7 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 60 treesize of output 59 [2022-10-04 02:59:02,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:02,824 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:59:02,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:02,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:02,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:02,850 INFO L356 Elim1Store]: treesize reduction 120, result has 27.3 percent of original size [2022-10-04 02:59:02,851 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 7 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 5 case distinctions, treesize of input 83 treesize of output 76 [2022-10-04 02:59:06,059 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:06,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:06,060 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:06,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:06,063 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 11 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 66 [2022-10-04 02:59:13,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:13,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:13,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:13,200 INFO L356 Elim1Store]: treesize reduction 90, result has 43.0 percent of original size [2022-10-04 02:59:13,201 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 6 case distinctions, treesize of input 91 treesize of output 113 [2022-10-04 02:59:18,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:18,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:18,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:18,689 INFO L356 Elim1Store]: treesize reduction 52, result has 31.6 percent of original size [2022-10-04 02:59:18,689 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 7 new quantified variables, introduced 6 case distinctions, treesize of input 342 treesize of output 215 [2022-10-04 02:59:54,959 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:54,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:54,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 02:59:54,962 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-04 02:59:55,109 INFO L356 Elim1Store]: treesize reduction 126, result has 45.5 percent of original size [2022-10-04 02:59:55,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 7 new quantified variables, introduced 15 case distinctions, treesize of input 283 treesize of output 248 [2022-10-04 03:00:14,844 WARN L233 SmtUtils]: Spent 5.34s on a formula simplification. DAG size of input: 237 DAG size of output: 156 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-04 03:01:05,366 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 03:01:05,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 03:01:05,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 03:01:05,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-04 03:01:06,282 INFO L356 Elim1Store]: treesize reduction 792, result has 20.8 percent of original size [2022-10-04 03:01:06,283 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 14 select indices, 14 select index equivalence classes, 11 disjoint index pairs (out of 91 index pairs), introduced 20 new quantified variables, introduced 90 case distinctions, treesize of input 1305 treesize of output 934