/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-bug_1w1r.line1158.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 14:25:36,484 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 14:25:36,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 14:25:36,535 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 14:25:36,536 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 14:25:36,538 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 14:25:36,541 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 14:25:36,544 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 14:25:36,545 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 14:25:36,550 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 14:25:36,550 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 14:25:36,552 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 14:25:36,552 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 14:25:36,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 14:25:36,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 14:25:36,560 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 14:25:36,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 14:25:36,561 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 14:25:36,563 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 14:25:36,568 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 14:25:36,569 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 14:25:36,571 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 14:25:36,572 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 14:25:36,573 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 14:25:36,580 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 14:25:36,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 14:25:36,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 14:25:36,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 14:25:36,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 14:25:36,620 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 14:25:36,620 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 14:25:36,621 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 14:25:36,621 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 14:25:36,622 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 14:25:36,622 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 14:25:36,622 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 14:25:36,622 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 14:25:36,623 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 14:25:36,623 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 14:25:36,623 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 14:25:36,624 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 14:25:36,625 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 14:25:36,625 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 14:25:36,625 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 14:25:36,625 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 14:25:36,625 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 14:25:36,625 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 14:25:36,626 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 14:25:36,626 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 14:25:36,626 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:25:36,626 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 14:25:36,626 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 14:25:36,626 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 14:25:36,627 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 14:25:36,627 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 14:25:36,627 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 14:25:36,627 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 14:25:36,627 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 14:25:36,628 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 14:25:36,628 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 14:25:36,628 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 14:25:36,628 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 14:25:36,628 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 14:25:36,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 14:25:36,891 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 14:25:36,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 14:25:36,894 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 14:25:36,895 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 14:25:36,896 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1158.bpl [2022-10-03 14:25:36,897 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1158.bpl' [2022-10-03 14:25:36,980 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 14:25:36,982 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 14:25:36,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 14:25:36,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 14:25:36,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 14:25:36,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:36,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,033 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,033 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,117 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,129 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 14:25:37,131 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 14:25:37,132 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 14:25:37,132 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 14:25:37,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/1) ... [2022-10-03 14:25:37,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 14:25:37,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:25:37,166 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-03 14:25:37,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-03 14:25:37,251 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 14:25:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 14:25:37,252 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 14:25:37,252 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 14:25:37,253 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 14:25:37,452 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 14:25:37,453 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 14:25:38,533 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 14:25:38,577 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 14:25:38,578 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 14:25:38,583 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:38 BoogieIcfgContainer [2022-10-03 14:25:38,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 14:25:38,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 14:25:38,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 14:25:38,590 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 14:25:38,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 02:25:36" (1/2) ... [2022-10-03 14:25:38,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@314e423b and model type divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:25:38, skipping insertion in model container [2022-10-03 14:25:38,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1158.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:25:38" (2/2) ... [2022-10-03 14:25:38,594 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1158.bpl [2022-10-03 14:25:38,604 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 14:25:38,615 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 14:25:38,615 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 14:25:38,615 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 14:25:38,810 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 14:25:38,898 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 14:25:38,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 14:25:38,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:25:38,905 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 14:25:38,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-03 14:25:38,945 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 14:25:38,954 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 14:25:38,960 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;@2eaab2b0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 14:25:38,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 14:25:39,228 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:25:39,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:25:39,232 INFO L85 PathProgramCache]: Analyzing trace with hash 995702559, now seen corresponding path program 1 times [2022-10-03 14:25:39,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:25:39,240 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145829998] [2022-10-03 14:25:39,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:25:39,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:25:39,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:25:39,726 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:25:39,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:25:39,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145829998] [2022-10-03 14:25:39,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145829998] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:25:39,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:25:39,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 14:25:39,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203468227] [2022-10-03 14:25:39,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:25:39,743 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 14:25:39,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:25:39,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 14:25:39,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 14:25:39,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:39,772 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:25:39,774 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 197.0) internal successors, (394), 2 states have internal predecessors, (394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:25:39,774 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:40,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:40,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 14:25:40,011 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:25:40,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:25:40,014 INFO L85 PathProgramCache]: Analyzing trace with hash 1264536516, now seen corresponding path program 1 times [2022-10-03 14:25:40,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:25:40,014 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3141999] [2022-10-03 14:25:40,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:25:40,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:25:40,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:25:40,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 14:25:40,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:25:40,701 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3141999] [2022-10-03 14:25:40,701 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3141999] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 14:25:40,701 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 14:25:40,701 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-10-03 14:25:40,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849822695] [2022-10-03 14:25:40,701 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 14:25:40,703 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 14:25:40,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:25:40,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 14:25:40,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-03 14:25:40,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:40,705 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:25:40,706 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 33.0) internal successors, (462), 15 states have internal predecessors, (462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:25:40,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:40,706 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:48,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:25:48,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 14:25:48,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 14:25:48,476 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:25:48,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:25:48,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1740245466, now seen corresponding path program 1 times [2022-10-03 14:25:48,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:25:48,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805123769] [2022-10-03 14:25:48,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:25:48,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:25:53,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:26:04,593 INFO L134 CoverageAnalysis]: Checked inductivity of 55883 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 55088 trivial. 0 not checked. [2022-10-03 14:26:04,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 14:26:04,594 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805123769] [2022-10-03 14:26:04,594 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805123769] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 14:26:04,595 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [774261043] [2022-10-03 14:26:04,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:26:04,596 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 14:26:04,596 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 14:26:04,597 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) [2022-10-03 14:26:04,600 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 14:26:07,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 14:26:08,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 19164 conjuncts, 287 conjunts are in the unsatisfiable core [2022-10-03 14:26:08,306 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 14:26:08,470 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 0 case distinctions, treesize of input 12 treesize of output 9 [2022-10-03 14:26:14,256 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 14:26:15,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 7 treesize of output 3 [2022-10-03 14:26:16,102 INFO L356 Elim1Store]: treesize reduction 80, result has 17.5 percent of original size [2022-10-03 14:26:16,103 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 4 case distinctions, treesize of input 41 treesize of output 30 [2022-10-03 14:26:17,269 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 23 [2022-10-03 14:26:17,491 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 12 treesize of output 11 [2022-10-03 14:26:18,986 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 30 [2022-10-03 14:26:19,430 INFO L356 Elim1Store]: treesize reduction 36, result has 37.9 percent of original size [2022-10-03 14:26:19,430 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 23 treesize of output 33 [2022-10-03 14:26:20,367 INFO L356 Elim1Store]: treesize reduction 4, result has 77.8 percent of original size [2022-10-03 14:26:20,367 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 21 treesize of output 21 [2022-10-03 14:26:24,052 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 14:26:24,054 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-10-03 14:26:27,670 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 14:26:29,458 INFO L134 CoverageAnalysis]: Checked inductivity of 55883 backedges. 26136 proven. 3868 refuted. 0 times theorem prover too weak. 25879 trivial. 0 not checked. [2022-10-03 14:26:29,459 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 14:26:29,742 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1219 (Array Int Int))) (not (= (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1219) |c_#memory_$Pointer$.base|))) is different from false [2022-10-03 14:26:30,799 INFO L356 Elim1Store]: treesize reduction 13, result has 64.9 percent of original size [2022-10-03 14:26:30,799 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 45 treesize of output 54 [2022-10-03 14:26:31,377 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1219 (Array Int Int))) (not (let ((.cse0 (select (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 14:26:31,384 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1219 (Array Int Int))) (not (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-10-03 14:26:31,391 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1219 (Array Int Int)) (v_ArrVal_1217 (Array Int Int))) (not (let ((.cse0 (select (store (store |c_pusherThread1of1ForFork0_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_pusherThread1of1ForFork0_write~$Pointer$_#ptr#1.base| v_ArrVal_1217) |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-10-03 14:26:33,044 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1219 (Array Int Int))) (not (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) (forall ((v_ArrVal_1216 Int)) (not (= (select (store |c_ULTIMATE.start_ULTIMATE.dealloc_old_#valid#1| |c_ULTIMATE.start_ULTIMATE.dealloc_~addr#1.base| v_ArrVal_1216) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) 1)))) is different from false [2022-10-03 14:26:33,055 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1216 Int)) (not (= (select (store |c_ULTIMATE.start_ULTIMATE.dealloc_old_#valid#1| |c_ULTIMATE.start_fifo_drop_head_~old~0#1.base| v_ArrVal_1216) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) 1))) (forall ((v_ArrVal_1219 (Array Int Int))) (not (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4))))))) is different from false [2022-10-03 14:26:33,066 WARN L833 $PredicateComparison]: unable to prove that (or (forall ((v_ArrVal_1219 (Array Int Int))) (not (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_pusherThread1of1ForFork0_fifo_node_init_~self#1.base| v_ArrVal_1219) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) (forall ((v_ArrVal_1216 Int)) (not (= (select (store |c_#valid| |c_ULTIMATE.start_fifo_drop_head_~old~0#1.base| v_ArrVal_1216) (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|)) 1)))) is different from false [2022-10-03 14:26:36,170 INFO L356 Elim1Store]: treesize reduction 8, result has 33.3 percent of original size [2022-10-03 14:26:36,171 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 68 treesize of output 64 [2022-10-03 14:26:40,879 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 204 treesize of output 164 [2022-10-03 14:26:44,114 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:26:44,115 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 502 treesize of output 482 [2022-10-03 14:26:44,122 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 314 treesize of output 266 [2022-10-03 14:26:44,136 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:26:44,136 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 476 treesize of output 456 [2022-10-03 14:26:44,272 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 14:26:44,273 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 78 [2022-10-03 14:26:44,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 80 [2022-10-03 14:26:50,916 INFO L134 CoverageAnalysis]: Checked inductivity of 55883 backedges. 25779 proven. 2137 refuted. 206 times theorem prover too weak. 26002 trivial. 1759 not checked. [2022-10-03 14:26:50,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [774261043] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 14:26:50,916 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 14:26:50,919 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 101, 93] total 202 [2022-10-03 14:26:50,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485470299] [2022-10-03 14:26:50,919 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 14:26:50,929 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 202 states [2022-10-03 14:26:50,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 14:26:50,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 202 interpolants. [2022-10-03 14:26:50,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1113, Invalid=36382, Unknown=363, NotChecked=2744, Total=40602 [2022-10-03 14:26:50,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:26:50,950 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 14:26:50,955 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 202 states, 202 states have (on average 29.93069306930693) internal successors, (6046), 202 states have internal predecessors, (6046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-03 14:26:50,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:26:50,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-10-03 14:26:50,955 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:54,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 14:27:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 14:27:54,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-10-03 14:27:54,201 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-03 14:27:54,352 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,SelfDestructingSolverStorable2 [2022-10-03 14:27:54,353 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 14:27:54,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 14:27:54,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1625554374, now seen corresponding path program 1 times [2022-10-03 14:27:54,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 14:27:54,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290519916] [2022-10-03 14:27:54,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 14:27:54,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 14:27:57,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat