/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.line1277.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 22:29:37,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 22:29:37,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 22:29:37,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 22:29:37,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 22:29:37,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 22:29:37,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 22:29:37,845 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 22:29:37,847 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 22:29:37,852 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 22:29:37,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 22:29:37,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 22:29:37,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 22:29:37,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 22:29:37,854 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 22:29:37,855 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 22:29:37,855 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 22:29:37,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 22:29:37,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 22:29:37,858 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 22:29:37,859 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 22:29:37,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 22:29:37,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 22:29:37,868 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 22:29:37,875 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 22:29:37,883 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 22:29:37,884 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 22:29:37,885 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 22:29:37,885 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 22:29:37,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 22:29:37,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 22:29:37,917 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 22:29:37,917 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 22:29:37,918 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 22:29:37,918 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 22:29:37,918 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 22:29:37,919 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 22:29:37,919 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 22:29:37,920 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:29:37,920 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 22:29:37,920 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 22:29:37,921 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 22:29:37,921 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 22:29:38,159 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 22:29:38,183 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 22:29:38,185 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 22:29:38,186 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 22:29:38,187 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 22:29:38,188 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1277.bpl [2022-09-29 22:29:38,189 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1277.bpl' [2022-09-29 22:29:38,266 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 22:29:38,268 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 22:29:38,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 22:29:38,268 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 22:29:38,268 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 22:29:38,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,314 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,315 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,353 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,364 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,372 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 22:29:38,373 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 22:29:38,373 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 22:29:38,373 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 22:29:38,374 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/1) ... [2022-09-29 22:29:38,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:29:38,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:29:38,441 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 22:29:38,443 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 22:29:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 22:29:38,469 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 22:29:38,469 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 22:29:38,469 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 22:29:38,470 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 22:29:38,599 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 22:29:38,600 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 22:29:39,543 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 22:29:39,578 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 22:29:39,579 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 22:29:39,581 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:29:39 BoogieIcfgContainer [2022-09-29 22:29:39,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 22:29:39,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 22:29:39,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 22:29:39,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 22:29:39,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:29:38" (1/2) ... [2022-09-29 22:29:39,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@797e916e and model type divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:29:39, skipping insertion in model container [2022-09-29 22:29:39,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1277.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:29:39" (2/2) ... [2022-09-29 22:29:39,598 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1277.bpl [2022-09-29 22:29:39,605 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 22:29:39,614 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 22:29:39,614 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 22:29:39,614 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 22:29:39,746 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 22:29:39,801 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:29:39,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:29:39,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:29:39,803 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 22:29:39,842 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 22:29:39,852 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:29:39,858 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:29:39,864 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;@339eacfb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:29:39,864 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:29:40,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:29:40,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:29:40,206 INFO L85 PathProgramCache]: Analyzing trace with hash 1280815819, now seen corresponding path program 1 times [2022-09-29 22:29:40,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:29:40,212 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630469271] [2022-09-29 22:29:40,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:29:40,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:29:40,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:29:40,651 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 22:29:40,651 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:29:40,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [630469271] [2022-09-29 22:29:40,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [630469271] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:29:40,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:29:40,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 22:29:40,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [146397157] [2022-09-29 22:29:40,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:29:40,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 22:29:40,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:29:40,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 22:29:40,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 22:29:40,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:40,679 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:29:40,680 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 243.5) internal successors, (487), 2 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-29 22:29:40,681 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:40,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:40,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 22:29:40,858 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:29:40,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:29:40,860 INFO L85 PathProgramCache]: Analyzing trace with hash -1702865445, now seen corresponding path program 1 times [2022-09-29 22:29:40,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:29:40,860 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667600467] [2022-09-29 22:29:40,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:29:40,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:29:41,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:29:41,523 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 22:29:41,523 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:29:41,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667600467] [2022-09-29 22:29:41,524 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667600467] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:29:41,524 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:29:41,524 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2022-09-29 22:29:41,524 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848335498] [2022-09-29 22:29:41,524 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:29:41,526 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-09-29 22:29:41,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:29:41,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-09-29 22:29:41,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=230, Unknown=0, NotChecked=0, Total=272 [2022-09-29 22:29:41,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:41,527 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:29:41,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 34.625) internal successors, (554), 17 states have internal predecessors, (554), 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 22:29:41,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:41,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:43,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:43,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:29:43,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 22:29:43,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:29:43,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:29:43,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1403769823, now seen corresponding path program 1 times [2022-09-29 22:29:43,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:29:43,217 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1748157802] [2022-09-29 22:29:43,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:29:43,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:29:43,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:29:43,811 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 22:29:43,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:29:43,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1748157802] [2022-09-29 22:29:43,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1748157802] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:29:43,813 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254753249] [2022-09-29 22:29:43,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:29:43,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:29:43,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:29:43,815 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 22:29:43,816 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 22:29:44,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:29:44,257 INFO L263 TraceCheckSpWp]: Trace formula consists of 2194 conjuncts, 164 conjunts are in the unsatisfiable core [2022-09-29 22:29:44,290 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:29:44,828 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 11 treesize of output 7 [2022-09-29 22:29:45,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:45,030 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 20 [2022-09-29 22:29:45,276 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:45,277 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 14 treesize of output 16 [2022-09-29 22:29:45,459 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 11 treesize of output 7 [2022-09-29 22:29:45,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:45,464 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 23 treesize of output 22 [2022-09-29 22:29:46,865 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 22:29:46,866 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 11 treesize of output 11 [2022-09-29 22:29:47,195 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:47,196 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:47,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 30 [2022-09-29 22:29:47,202 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 36 treesize of output 34 [2022-09-29 22:29:48,347 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-09-29 22:29:48,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:29:48,748 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-09-29 22:29:48,748 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 4 new quantified variables, introduced 1 case distinctions, treesize of input 33 treesize of output 19 [2022-09-29 22:29:48,827 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-09-29 22:29:48,828 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:29:48,828 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254753249] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:29:48,828 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:29:48,828 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [52] imperfect sequences [11] total 61 [2022-09-29 22:29:48,828 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656775868] [2022-09-29 22:29:48,828 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:29:48,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-09-29 22:29:48,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:29:48,830 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-09-29 22:29:48,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=248, Invalid=3412, Unknown=0, NotChecked=0, Total=3660 [2022-09-29 22:29:48,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:48,832 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:29:48,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 16.192307692307693) internal successors, (842), 52 states have internal predecessors, (842), 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 22:29:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:29:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:29:48,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:00,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:00,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:30:00,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:00,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-09-29 22:30:00,275 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 22:30:00,276 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:30:00,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:30:00,276 INFO L85 PathProgramCache]: Analyzing trace with hash 1302362482, now seen corresponding path program 1 times [2022-09-29 22:30:00,276 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:30:00,276 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9203417] [2022-09-29 22:30:00,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:30:00,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:30:00,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:30:00,721 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-09-29 22:30:00,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:30:00,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9203417] [2022-09-29 22:30:00,722 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9203417] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:30:00,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136419563] [2022-09-29 22:30:00,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:30:00,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:30:00,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:30:00,723 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 22:30:00,742 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-09-29 22:30:01,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:30:01,098 INFO L263 TraceCheckSpWp]: Trace formula consists of 2044 conjuncts, 222 conjunts are in the unsatisfiable core [2022-09-29 22:30:01,114 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:30:01,159 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 [2022-09-29 22:30:01,367 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:30:01,368 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-29 22:30:01,881 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 11 treesize of output 7 [2022-09-29 22:30:02,361 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 22:30:02,361 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 11 treesize of output 11 [2022-09-29 22:30:02,421 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-29 22:30:02,652 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 16 treesize of output 18 [2022-09-29 22:30:06,997 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:30:06,998 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 21 treesize of output 13 [2022-09-29 22:30:07,762 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 22:30:07,763 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 43 treesize of output 40 [2022-09-29 22:30:07,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:30:07,768 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 29 [2022-09-29 22:30:08,664 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 42 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:30:08,665 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:30:08,666 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136419563] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:30:08,666 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:30:08,666 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [11] total 74 [2022-09-29 22:30:08,666 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657697647] [2022-09-29 22:30:08,666 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:30:08,667 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-09-29 22:30:08,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:30:08,668 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-09-29 22:30:08,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=296, Invalid=5106, Unknown=0, NotChecked=0, Total=5402 [2022-09-29 22:30:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:08,670 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:30:08,671 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 12.90625) internal successors, (826), 64 states have internal predecessors, (826), 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 22:30:08,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:08,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:30:08,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:08,671 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:30:27,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:27,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-09-29 22:30:27,019 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-09-29 22:30:27,215 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:30:27,215 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:30:27,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:30:27,216 INFO L85 PathProgramCache]: Analyzing trace with hash -358816608, now seen corresponding path program 1 times [2022-09-29 22:30:27,216 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:30:27,216 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1177570622] [2022-09-29 22:30:27,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:30:27,216 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:30:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:30:27,846 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 490 trivial. 0 not checked. [2022-09-29 22:30:27,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:30:27,846 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1177570622] [2022-09-29 22:30:27,846 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1177570622] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:30:27,846 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:30:27,846 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2022-09-29 22:30:27,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [60543101] [2022-09-29 22:30:27,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:30:27,847 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2022-09-29 22:30:27,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:30:27,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2022-09-29 22:30:27,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=374, Unknown=0, NotChecked=0, Total=420 [2022-09-29 22:30:27,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:27,849 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:30:27,849 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 45.42857142857143) internal successors, (954), 21 states have internal predecessors, (954), 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 22:30:27,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:27,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-09-29 22:30:27,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:27,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-09-29 22:30:27,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:32,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-09-29 22:30:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2022-09-29 22:30:32,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-09-29 22:30:32,698 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-29 22:30:32,699 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:30:32,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:30:32,699 INFO L85 PathProgramCache]: Analyzing trace with hash 140462337, now seen corresponding path program 1 times [2022-09-29 22:30:32,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:30:32,702 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679808892] [2022-09-29 22:30:32,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:30:32,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:30:32,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:30:33,308 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 0 proven. 251 refuted. 0 times theorem prover too weak. 218 trivial. 0 not checked. [2022-09-29 22:30:33,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:30:33,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679808892] [2022-09-29 22:30:33,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1679808892] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:30:33,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1931919624] [2022-09-29 22:30:33,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:30:33,309 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:30:33,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:30:33,310 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 22:30:33,313 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-09-29 22:30:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:30:33,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 3128 conjuncts, 203 conjunts are in the unsatisfiable core [2022-09-29 22:30:33,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:30:33,897 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 [2022-09-29 22:30:34,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:30:34,062 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-29 22:30:34,496 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 22:30:34,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-09-29 22:30:34,523 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 12 treesize of output 14 [2022-09-29 22:30:38,103 INFO L356 Elim1Store]: treesize reduction 4, result has 66.7 percent of original size [2022-09-29 22:30:38,104 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 [2022-09-29 22:30:38,585 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 22:30:38,585 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 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 39 [2022-09-29 22:30:38,592 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 31 treesize of output 29 [2022-09-29 22:30:39,099 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:30:39,099 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 38 treesize of output 14 [2022-09-29 22:30:39,212 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 288 proven. 144 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2022-09-29 22:30:39,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 22:30:39,551 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_write~$Pointer$_#ptr#1.base| v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-09-29 22:30:39,573 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse0 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse1 (select (store |c_ULTIMATE.start_write~$Pointer$_old_#memory_$Pointer$#1.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-09-29 22:30:39,607 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_fifo_pop_#t~mem40#1.base| v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-09-29 22:30:39,707 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.offset| |c_ULTIMATE.start_read~$Pointer$_#value#1.base| v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-09-29 22:30:39,715 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_read~$Pointer$_#ptr#1.base|) |c_ULTIMATE.start_read~$Pointer$_#ptr#1.offset|) v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|))))) is different from false [2022-09-29 22:30:39,741 WARN L833 $PredicateComparison]: unable to prove that (and (forall ((v_ArrVal_629 (Array Int Int))) (let ((.cse0 (select (store |c_#memory_$Pointer$.offset| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_629) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse0 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)) (select .cse0 |c_ULTIMATE.start_fifo_pop_~self#1.offset|)))) (forall ((v_ArrVal_628 (Array Int Int))) (let ((.cse1 (select (store |c_#memory_$Pointer$.base| (select (select |c_#memory_$Pointer$.base| |c_ULTIMATE.start_fifo_pop_~self#1.base|) |c_ULTIMATE.start_fifo_pop_~self#1.offset|) v_ArrVal_628) |c_ULTIMATE.start_fifo_pop_~self#1.base|))) (= (select .cse1 |c_ULTIMATE.start_fifo_pop_~self#1.offset|) (select .cse1 (+ |c_ULTIMATE.start_fifo_pop_~self#1.offset| 4)))))) is different from false [2022-09-29 22:30:41,292 INFO L356 Elim1Store]: treesize reduction 13, result has 86.6 percent of original size [2022-09-29 22:30:41,293 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 98 treesize of output 141 [2022-09-29 22:30:41,302 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 42 treesize of output 36 [2022-09-29 22:30:41,373 INFO L356 Elim1Store]: treesize reduction 13, result has 86.6 percent of original size [2022-09-29 22:30:41,373 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 2 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 8 case distinctions, treesize of input 82 treesize of output 137 [2022-09-29 22:30:41,382 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 39 treesize of output 33 [2022-09-29 22:30:43,803 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-09-29 22:30:43,803 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 13 treesize of output 12 [2022-09-29 22:30:46,236 WARN L833 $PredicateComparison]: unable to prove that (forall ((|ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| Int)) (or (not (< |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| |c_#StackHeapBarrier|)) (forall ((|ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| Int) (v_ArrVal_627 Int) (v_ArrVal_626 Int)) (or (= |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| |c_ULTIMATE.start_fifo_init_~self#1.base|) (< (select (store (store |c_ULTIMATE.start_#Ultimate.allocOnHeap_old_#length#1| |ULTIMATE.start_#Ultimate.allocOnHeap_#res#1.base| v_ArrVal_626) |ULTIMATE.start_#Ultimate.allocOnStack_#res#1.base| v_ArrVal_627) |c_ULTIMATE.start_main_~#q~1#1.base|) 16))))) is different from false [2022-09-29 22:30:53,971 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:30:54,089 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 109 proven. 103 refuted. 0 times theorem prover too weak. 216 trivial. 41 not checked. [2022-09-29 22:30:54,089 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1931919624] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-29 22:30:54,089 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-29 22:30:54,090 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 60, 50] total 118 [2022-09-29 22:30:54,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [451786982] [2022-09-29 22:30:54,090 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-29 22:30:54,092 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-09-29 22:30:54,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:30:54,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-09-29 22:30:54,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=698, Invalid=11530, Unknown=10, NotChecked=1568, Total=13806 [2022-09-29 22:30:54,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:54,097 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:30:54,098 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 25.74576271186441) internal successors, (3038), 118 states have internal predecessors, (3038), 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 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 27 states. [2022-09-29 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-09-29 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 106 states. [2022-09-29 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2022-09-29 22:30:54,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:31:16,221 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-09-29 22:31:16,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:31:16,413 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: at most one deprecated predicate at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:973) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:768) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:152) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:234) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:164) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:97) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:121) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:322) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:466) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-09-29 22:31:16,423 INFO L158 Benchmark]: Toolchain (without parser) took 98155.47ms. Allocated memory was 198.2MB in the beginning and 1.1GB in the end (delta: 877.7MB). Free memory was 148.8MB in the beginning and 883.5MB in the end (delta: -734.7MB). Peak memory consumption was 143.8MB. Max. memory is 8.0GB. [2022-09-29 22:31:16,423 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.56ms. Allocated memory is still 198.2MB. Free memory was 155.0MB in the beginning and 154.8MB in the end (delta: 126.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 22:31:16,424 INFO L158 Benchmark]: Boogie Preprocessor took 103.99ms. Allocated memory is still 198.2MB. Free memory was 148.8MB in the beginning and 142.4MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. [2022-09-29 22:31:16,424 INFO L158 Benchmark]: RCFGBuilder took 1208.08ms. Allocated memory was 198.2MB in the beginning and 259.0MB in the end (delta: 60.8MB). Free memory was 142.4MB in the beginning and 204.6MB in the end (delta: -62.2MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. [2022-09-29 22:31:16,424 INFO L158 Benchmark]: TraceAbstraction took 96832.89ms. Allocated memory was 259.0MB in the beginning and 1.1GB in the end (delta: 816.8MB). Free memory was 204.1MB in the beginning and 883.5MB in the end (delta: -679.4MB). Peak memory consumption was 137.7MB. Max. memory is 8.0GB. [2022-09-29 22:31:16,425 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.56ms. Allocated memory is still 198.2MB. Free memory was 155.0MB in the beginning and 154.8MB in the end (delta: 126.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 103.99ms. Allocated memory is still 198.2MB. Free memory was 148.8MB in the beginning and 142.4MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 8.0GB. * RCFGBuilder took 1208.08ms. Allocated memory was 198.2MB in the beginning and 259.0MB in the end (delta: 60.8MB). Free memory was 142.4MB in the beginning and 204.6MB in the end (delta: -62.2MB). Peak memory consumption was 29.1MB. Max. memory is 8.0GB. * TraceAbstraction took 96832.89ms. Allocated memory was 259.0MB in the beginning and 1.1GB in the end (delta: 816.8MB). Free memory was 204.1MB in the beginning and 883.5MB in the end (delta: -679.4MB). Peak memory consumption was 137.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: at most one deprecated predicate de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: at most one deprecated predicate: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:973) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-09-29 22:31:16,450 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-09-29 22:31:16,659 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...