/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/divinefifo_1w1r.line1194.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 22:26:43,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 22:26:43,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 22:26:43,382 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 22:26:43,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 22:26:43,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 22:26:43,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 22:26:43,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 22:26:43,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 22:26:43,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 22:26:43,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 22:26:43,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 22:26:43,393 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 22:26:43,393 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 22:26:43,394 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 22:26:43,395 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 22:26:43,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 22:26:43,396 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 22:26:43,397 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 22:26:43,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 22:26:43,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 22:26:43,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 22:26:43,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 22:26:43,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 22:26:43,403 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-29 22:26:43,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-29 22:26:43,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-29 22:26:43,404 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-29 22:26:43,404 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-29 22:26:43,405 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-29 22:26:43,405 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-29 22:26:43,405 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-29 22:26:43,406 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-29 22:26:43,406 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-29 22:26:43,407 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-29 22:26:43,407 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-29 22:26:43,407 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-29 22:26:43,407 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-29 22:26:43,408 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 22:26:43,408 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 22:26:43,408 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 22:26:43,409 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 22:26:43,425 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 22:26:43,425 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 22:26:43,425 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 22:26:43,425 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 22:26:43,426 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 22:26:43,426 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 22:26:43,426 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 22:26:43,426 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 22:26:43,427 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 22:26:43,427 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 22:26:43,428 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 22:26:43,428 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:26:43,428 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 22:26:43,429 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 22:26:43,430 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 22:26:43,600 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 22:26:43,613 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 22:26:43,615 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 22:26:43,615 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 22:26:43,616 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 22:26:43,617 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1194.bpl [2022-09-29 22:26:43,617 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1194.bpl' [2022-09-29 22:26:43,676 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 22:26:43,678 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 22:26:43,678 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 22:26:43,679 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 22:26:43,679 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 22:26:43,689 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,689 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,766 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,787 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,791 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,807 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 22:26:43,823 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 22:26:43,823 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 22:26:43,823 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 22:26:43,826 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/1) ... [2022-09-29 22:26:43,831 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:26:43,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:26:43,845 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 22:26:43,846 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 22:26:43,869 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 22:26:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 22:26:43,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 22:26:43,870 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 22:26:43,871 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 22:26:44,069 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 22:26:44,070 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 22:26:45,118 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 22:26:45,133 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 22:26:45,133 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 22:26:45,136 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:26:45 BoogieIcfgContainer [2022-09-29 22:26:45,136 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 22:26:45,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 22:26:45,153 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 22:26:45,156 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 22:26:45,156 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:43" (1/2) ... [2022-09-29 22:26:45,160 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2587ac92 and model type divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:26:45, skipping insertion in model container [2022-09-29 22:26:45,160 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1194.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:26:45" (2/2) ... [2022-09-29 22:26:45,161 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1194.bpl [2022-09-29 22:26:45,166 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 22:26:45,172 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 22:26:45,172 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 22:26:45,172 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 22:26:45,251 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 22:26:45,289 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:26:45,289 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:26:45,289 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:26:45,291 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 22:26:45,321 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 22:26:45,334 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:26:45,340 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:26:45,345 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;@162258da, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:26:45,345 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:26:45,586 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:26:45,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:26:45,590 INFO L85 PathProgramCache]: Analyzing trace with hash -1392885946, now seen corresponding path program 1 times [2022-09-29 22:26:45,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:26:45,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636360262] [2022-09-29 22:26:45,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:45,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:26:45,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:45,982 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 22:26:45,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:26:45,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636360262] [2022-09-29 22:26:45,983 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636360262] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:26:45,983 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:26:45,983 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 22:26:45,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858357925] [2022-09-29 22:26:45,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:26:46,002 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 22:26:46,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:26:46,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 22:26:46,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 22:26:46,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:46,027 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:26:46,029 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 210.0) internal successors, (420), 2 states have internal predecessors, (420), 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 22:26:46,029 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:46,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:46,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 22:26:46,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:26:46,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:26:46,240 INFO L85 PathProgramCache]: Analyzing trace with hash 1546346558, now seen corresponding path program 1 times [2022-09-29 22:26:46,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:26:46,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95563093] [2022-09-29 22:26:46,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:46,240 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:26:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:48,871 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 22:26:48,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:26:48,871 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95563093] [2022-09-29 22:26:48,871 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95563093] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:26:48,871 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:26:48,871 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [67] imperfect sequences [] total 67 [2022-09-29 22:26:48,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604879231] [2022-09-29 22:26:48,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:26:48,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-09-29 22:26:48,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:26:48,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-09-29 22:26:48,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=4213, Unknown=0, NotChecked=0, Total=4422 [2022-09-29 22:26:48,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:48,877 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:26:48,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 7.268656716417911) internal successors, (487), 67 states have internal predecessors, (487), 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 22:26:48,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:48,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:02,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:02,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-09-29 22:27:02,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 22:27:02,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:27:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:27:02,175 INFO L85 PathProgramCache]: Analyzing trace with hash -109272787, now seen corresponding path program 1 times [2022-09-29 22:27:02,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:27:02,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804802482] [2022-09-29 22:27:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:27:02,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:27:02,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:27:02,417 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 22:27:02,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:27:02,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804802482] [2022-09-29 22:27:02,419 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804802482] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:27:02,419 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:27:02,419 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-09-29 22:27:02,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302366836] [2022-09-29 22:27:02,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:27:02,420 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-09-29 22:27:02,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:27:02,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-09-29 22:27:02,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-09-29 22:27:02,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:02,422 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:27:02,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 33.07692307692308) internal successors, (430), 14 states have internal predecessors, (430), 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 22:27:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-09-29 22:27:02,422 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:12,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:12,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-09-29 22:27:12,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-29 22:27:12,092 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-29 22:27:12,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:27:12,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:27:12,107 INFO L85 PathProgramCache]: Analyzing trace with hash -755899319, now seen corresponding path program 1 times [2022-09-29 22:27:12,108 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:27:12,108 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086058781] [2022-09-29 22:27:12,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:27:12,109 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:27:17,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:27:35,412 INFO L134 CoverageAnalysis]: Checked inductivity of 107329 backedges. 76797 proven. 23313 refuted. 0 times theorem prover too weak. 7219 trivial. 0 not checked. [2022-09-29 22:27:35,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:27:35,412 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086058781] [2022-09-29 22:27:35,413 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086058781] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:27:35,427 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2086528551] [2022-09-29 22:27:35,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:27:35,428 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:27:35,428 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:27:35,440 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 22:27:35,471 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-09-29 22:27:39,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:27:39,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 25875 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-29 22:27:39,738 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:27:45,971 INFO L134 CoverageAnalysis]: Checked inductivity of 107329 backedges. 94855 proven. 0 refuted. 0 times theorem prover too weak. 12474 trivial. 0 not checked. [2022-09-29 22:27:45,971 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:27:45,972 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2086528551] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:27:45,972 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:27:45,974 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [14] total 15 [2022-09-29 22:27:45,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677030137] [2022-09-29 22:27:45,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:27:45,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 22:27:45,988 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:27:45,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 22:27:45,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=116, Unknown=0, NotChecked=0, Total=210 [2022-09-29 22:27:45,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:45,996 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:27:45,999 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 451.6) internal successors, (4516), 10 states have internal predecessors, (4516), 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 22:27:45,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:45,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-09-29 22:27:45,999 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-09-29 22:27:46,000 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-09-29 22:27:47,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-09-29 22:27:47,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-29 22:27:47,613 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-29 22:27:47,762 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-09-29 22:27:47,763 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:27:47,763 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:27:47,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1920975703, now seen corresponding path program 1 times [2022-09-29 22:27:47,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:27:47,765 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779310616] [2022-09-29 22:27:47,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:27:47,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:27:52,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat