/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.line1184.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 22:26:10,956 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 22:26:10,958 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 22:26:10,983 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 22:26:10,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 22:26:10,986 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 22:26:10,991 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 22:26:10,995 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 22:26:10,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 22:26:11,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 22:26:11,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 22:26:11,002 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 22:26:11,002 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 22:26:11,004 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 22:26:11,005 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 22:26:11,006 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 22:26:11,006 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 22:26:11,007 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 22:26:11,010 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 22:26:11,014 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 22:26:11,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 22:26:11,016 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 22:26:11,018 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 22:26:11,019 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 22:26:11,021 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 22:26:11,028 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 22:26:11,028 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 22:26:11,029 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 22:26:11,030 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 22:26:11,055 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 22:26:11,055 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 22:26:11,055 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 22:26:11,056 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 22:26:11,056 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 22:26:11,056 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 22:26:11,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 22:26:11,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 22:26:11,057 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 22:26:11,057 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 22:26:11,058 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 22:26:11,059 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 22:26:11,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:26:11,060 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 22:26:11,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 22:26:11,061 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 22:26:11,061 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 22:26:11,061 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 22:26:11,061 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 22:26:11,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 22:26:11,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 22:26:11,257 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 22:26:11,258 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 22:26:11,259 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 22:26:11,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1184.bpl [2022-09-29 22:26:11,261 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1184.bpl' [2022-09-29 22:26:11,338 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 22:26:11,340 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 22:26:11,341 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 22:26:11,341 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 22:26:11,341 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 22:26:11,353 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,354 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,383 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,426 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,430 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,445 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 22:26:11,446 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 22:26:11,446 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 22:26:11,446 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 22:26:11,447 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/1) ... [2022-09-29 22:26:11,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:26:11,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:26:11,477 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 22:26:11,495 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 22:26:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 22:26:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 22:26:11,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 22:26:11,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 22:26:11,511 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 22:26:11,735 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 22:26:11,736 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 22:26:12,600 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 22:26:12,614 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 22:26:12,614 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 22:26:12,617 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:26:12 BoogieIcfgContainer [2022-09-29 22:26:12,617 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 22:26:12,618 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 22:26:12,618 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 22:26:12,623 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 22:26:12,623 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:26:11" (1/2) ... [2022-09-29 22:26:12,623 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c7955c and model type divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:26:12, skipping insertion in model container [2022-09-29 22:26:12,624 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1184.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:26:12" (2/2) ... [2022-09-29 22:26:12,624 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1184.bpl [2022-09-29 22:26:12,629 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 22:26:12,635 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 22:26:12,636 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 22:26:12,636 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 22:26:12,747 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 22:26:12,807 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:26:12,808 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:26:12,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:26:12,810 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 22:26:12,823 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 22:26:12,854 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:26:12,859 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:26:12,869 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;@27a53c38, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:26:12,870 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:26:13,179 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:26:13,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:26:13,183 INFO L85 PathProgramCache]: Analyzing trace with hash 690639902, now seen corresponding path program 1 times [2022-09-29 22:26:13,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:26:13,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876192678] [2022-09-29 22:26:13,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:13,191 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:26:13,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:13,642 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 22:26:13,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:26:13,643 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876192678] [2022-09-29 22:26:13,643 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876192678] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:26:13,643 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:26:13,644 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 22:26:13,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1473369903] [2022-09-29 22:26:13,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:26:13,653 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 22:26:13,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:26:13,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 22:26:13,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 22:26:13,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:13,674 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:26:13,675 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 206.0) internal successors, (412), 2 states have internal predecessors, (412), 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 22:26:13,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:13,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:13,874 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 22:26:13,874 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:26:13,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:26:13,876 INFO L85 PathProgramCache]: Analyzing trace with hash -6948150, now seen corresponding path program 1 times [2022-09-29 22:26:13,876 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:26:13,876 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174091831] [2022-09-29 22:26:13,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:13,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:26:14,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:15,038 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 22:26:15,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:26:15,039 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174091831] [2022-09-29 22:26:15,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174091831] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:26:15,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:26:15,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [40] imperfect sequences [] total 40 [2022-09-29 22:26:15,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313859858] [2022-09-29 22:26:15,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:26:15,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-09-29 22:26:15,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:26:15,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-09-29 22:26:15,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=112, Invalid=1528, Unknown=0, NotChecked=0, Total=1640 [2022-09-29 22:26:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:15,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:26:15,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 40 states have (on average 11.975) internal successors, (479), 41 states have internal predecessors, (479), 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 22:26:15,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:15,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:27,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:27,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-29 22:26:27,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 22:26:27,351 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:26:27,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:26:27,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1232916814, now seen corresponding path program 1 times [2022-09-29 22:26:27,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:26:27,353 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659432131] [2022-09-29 22:26:27,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:27,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:26:31,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:48,773 INFO L134 CoverageAnalysis]: Checked inductivity of 114905 backedges. 81530 proven. 25402 refuted. 0 times theorem prover too weak. 7973 trivial. 0 not checked. [2022-09-29 22:26:48,773 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:26:48,774 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659432131] [2022-09-29 22:26:48,774 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659432131] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:26:48,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1733255771] [2022-09-29 22:26:48,776 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:26:48,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:26:48,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:26:48,815 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 22:26:48,882 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 22:26:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:26:53,169 INFO L263 TraceCheckSpWp]: Trace formula consists of 26708 conjuncts, 9 conjunts are in the unsatisfiable core [2022-09-29 22:26:53,385 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:26:59,852 INFO L134 CoverageAnalysis]: Checked inductivity of 114905 backedges. 102571 proven. 0 refuted. 0 times theorem prover too weak. 12334 trivial. 0 not checked. [2022-09-29 22:26:59,852 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:26:59,853 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1733255771] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:26:59,853 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:26:59,855 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [13] total 14 [2022-09-29 22:26:59,855 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58231119] [2022-09-29 22:26:59,855 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:26:59,859 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-09-29 22:26:59,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:26:59,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-09-29 22:26:59,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=101, Unknown=0, NotChecked=0, Total=182 [2022-09-29 22:26:59,860 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:59,862 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:26:59,865 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 459.2) internal successors, (4592), 10 states have internal predecessors, (4592), 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 22:26:59,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:26:59,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-09-29 22:26:59,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:01,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:27:01,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-29 22:27:01,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-09-29 22:27:01,565 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 22:27:01,735 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 [2022-09-29 22:27:01,736 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:27:01,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:27:01,738 INFO L85 PathProgramCache]: Analyzing trace with hash -75375445, now seen corresponding path program 2 times [2022-09-29 22:27:01,739 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:27:01,739 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108064776] [2022-09-29 22:27:01,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:27:01,739 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:27:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat