/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.line1155.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:15:24,860 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:15:24,861 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:15:24,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:15:24,881 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:15:24,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:15:24,882 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:15:24,884 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:15:24,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:15:24,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:15:24,886 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:15:24,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 15:15:24,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 15:15:24,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 15:15:24,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 15:15:24,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 15:15:24,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 15:15:24,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 15:15:24,896 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 15:15:24,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 15:15:24,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 15:15:24,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 15:15:24,906 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 15:15:24,907 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 15:15:24,909 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-03 15:15:24,915 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 15:15:24,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 15:15:24,923 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 15:15:24,924 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:15:24,955 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:15:24,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:15:24,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:15:24,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:15:24,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:15:24,956 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:15:24,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:15:24,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:15:24,957 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:15:24,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:15:24,957 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:15:24,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:15:24,957 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:15:24,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:15:24,958 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:15:24,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:15:24,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:15:24,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:15:24,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:15:24,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:15:24,962 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:15:24,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:15:24,962 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:15:24,962 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:15:24,963 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:15:24,963 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:15:24,963 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:15:24,963 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:15:24,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:15:24,963 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:15:25,192 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:15:25,208 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:15:25,210 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:15:25,210 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:15:25,212 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:15:25,212 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1155.bpl [2022-10-03 15:15:25,213 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1155.bpl' [2022-10-03 15:15:25,269 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:15:25,271 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:15:25,272 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:15:25,272 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:15:25,272 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:15:25,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,283 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,318 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,374 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,383 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:15:25,384 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:15:25,384 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:15:25,384 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:15:25,385 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/1) ... [2022-10-03 15:15:25,389 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:15:25,395 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:15:25,411 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 15:15:25,416 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 15:15:25,452 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:15:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:15:25,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:15:25,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:15:25,454 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 15:15:25,608 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:15:25,609 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:15:26,474 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:15:26,500 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:15:26,501 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:15:26,505 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:15:26 BoogieIcfgContainer [2022-10-03 15:15:26,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:15:26,506 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:15:26,506 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:15:26,509 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:15:26,509 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:15:25" (1/2) ... [2022-10-03 15:15:26,526 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e4810f1 and model type divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:15:26, skipping insertion in model container [2022-10-03 15:15:26,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1155.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:15:26" (2/2) ... [2022-10-03 15:15:26,531 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1155.bpl [2022-10-03 15:15:26,536 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:15:26,545 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:15:26,545 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:15:26,545 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:15:26,671 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:15:26,730 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 15:15:26,730 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:15:26,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:15:26,732 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 15:15:26,733 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 15:15:26,763 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:15:26,773 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:15:26,778 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;@30de2477, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:15:26,778 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:15:26,991 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:15:26,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:15:26,994 INFO L85 PathProgramCache]: Analyzing trace with hash -260170940, now seen corresponding path program 1 times [2022-10-03 15:15:27,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:15:27,001 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350323307] [2022-10-03 15:15:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:15:27,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:15:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:15:27,350 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 15:15:27,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:15:27,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350323307] [2022-10-03 15:15:27,351 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350323307] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:15:27,351 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:15:27,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:15:27,352 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286144488] [2022-10-03 15:15:27,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:15:27,357 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:15:27,357 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:15:27,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:15:27,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:15:27,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:27,375 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:15:27,376 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 15:15:27,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:27,571 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:15:27,571 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:15:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:15:27,573 INFO L85 PathProgramCache]: Analyzing trace with hash 941853372, now seen corresponding path program 1 times [2022-10-03 15:15:27,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:15:27,574 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198330434] [2022-10-03 15:15:27,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:15:27,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:15:27,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:15:28,281 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 15:15:28,282 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:15:28,282 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198330434] [2022-10-03 15:15:28,282 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198330434] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:15:28,282 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:15:28,282 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-10-03 15:15:28,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2121277680] [2022-10-03 15:15:28,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:15:28,284 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 15:15:28,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:15:28,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 15:15:28,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2022-10-03 15:15:28,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:28,286 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:15:28,286 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 15:15:28,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:28,287 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:34,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:34,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 15:15:34,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:15:34,300 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:15:34,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:15:34,302 INFO L85 PathProgramCache]: Analyzing trace with hash -446707630, now seen corresponding path program 1 times [2022-10-03 15:15:34,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:15:34,302 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [729852973] [2022-10-03 15:15:34,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:15:34,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:15:36,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:15:46,193 INFO L134 CoverageAnalysis]: Checked inductivity of 51856 backedges. 0 proven. 795 refuted. 0 times theorem prover too weak. 51061 trivial. 0 not checked. [2022-10-03 15:15:46,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:15:46,193 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [729852973] [2022-10-03 15:15:46,194 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [729852973] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:15:46,195 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1941799980] [2022-10-03 15:15:46,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:15:46,195 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:15:46,195 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:15:46,197 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 15:15:46,198 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 15:15:48,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:15:48,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 18238 conjuncts, 183 conjunts are in the unsatisfiable core [2022-10-03 15:15:49,026 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:15:51,560 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 15:15:51,562 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 15:15:53,255 INFO L356 Elim1Store]: treesize reduction 104, result has 14.0 percent of original size [2022-10-03 15:15:53,255 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 59 treesize of output 40 [2022-10-03 15:15:53,266 INFO L356 Elim1Store]: treesize reduction 15, result has 46.4 percent of original size [2022-10-03 15:15:53,266 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 1 case distinctions, treesize of input 24 treesize of output 32 [2022-10-03 15:15:53,277 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 9 treesize of output 3 [2022-10-03 15:15:54,776 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 14 treesize of output 4 [2022-10-03 15:15:54,783 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 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 28 treesize of output 10 [2022-10-03 15:15:54,976 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-10-03 15:15:55,168 INFO L134 CoverageAnalysis]: Checked inductivity of 51856 backedges. 18659 proven. 84 refuted. 0 times theorem prover too weak. 33113 trivial. 0 not checked. [2022-10-03 15:15:55,168 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:15:55,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 10 treesize of output 8 [2022-10-03 15:15:56,054 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| (store (select |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_write~$Pointer$_#ptr#1.offset| |c_ULTIMATE.start_write~$Pointer$_#value#1.base|)) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (and (forall ((v_ArrVal_1210 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_1210) |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|)))) (= .cse1 (select .cse2 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse1)))) is different from false [2022-10-03 15:15:56,371 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base|)) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse1 (select .cse2 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (and (forall ((v_ArrVal_1210 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_1210) |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))))) (= .cse1 (select .cse2 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse1)))) is different from false [2022-10-03 15:15:56,381 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse1 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| (store (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base|) |c_ULTIMATE.start_fifo_pop_#t~mem40#1.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|))) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (let ((.cse2 (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))) (or (and (forall ((v_ArrVal_1210 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_1210) |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))))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) .cse2)) (= |c_ULTIMATE.start_fifo_pop_~self#1.base| .cse2)))) is different from false [2022-10-03 15:15:57,525 INFO L134 CoverageAnalysis]: Checked inductivity of 51856 backedges. 18162 proven. 0 refuted. 0 times theorem prover too weak. 33694 trivial. 0 not checked. [2022-10-03 15:15:57,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1941799980] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-03 15:15:57,526 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-03 15:15:57,527 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [36] imperfect sequences [11, 55] total 99 [2022-10-03 15:15:57,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1623681129] [2022-10-03 15:15:57,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:15:57,531 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2022-10-03 15:15:57,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:15:57,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2022-10-03 15:15:57,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=823, Invalid=8266, Unknown=43, NotChecked=570, Total=9702 [2022-10-03 15:15:57,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:57,536 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:15:57,537 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 36 states have (on average 53.583333333333336) internal successors, (1929), 36 states have internal predecessors, (1929), 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 15:15:57,537 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:15:57,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-10-03 15:15:57,538 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:16:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:16:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-10-03 15:16:14,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2022-10-03 15:16:14,618 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 15:16:14,774 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 15:16:14,774 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:16:14,775 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:16:14,777 INFO L85 PathProgramCache]: Analyzing trace with hash 1569683072, now seen corresponding path program 2 times [2022-10-03 15:16:14,777 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:16:14,777 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [339584658] [2022-10-03 15:16:14,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:16:14,778 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:16:22,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat