/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1612.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-09-29 22:01:20,135 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-29 22:01:20,137 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-29 22:01:20,168 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-29 22:01:20,168 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-29 22:01:20,169 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-29 22:01:20,170 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-29 22:01:20,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-29 22:01:20,174 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-29 22:01:20,174 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-29 22:01:20,175 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-29 22:01:20,176 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-29 22:01:20,177 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-29 22:01:20,177 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-29 22:01:20,178 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-29 22:01:20,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-29 22:01:20,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-29 22:01:20,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-29 22:01:20,182 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-29 22:01:20,184 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-29 22:01:20,185 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-29 22:01:20,186 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-29 22:01:20,187 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-29 22:01:20,188 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-29 22:01:20,191 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-09-29 22:01:20,198 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-29 22:01:20,198 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-29 22:01:20,199 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-29 22:01:20,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-09-29 22:01:20,219 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-29 22:01:20,219 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-29 22:01:20,219 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-29 22:01:20,220 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-29 22:01:20,220 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-29 22:01:20,221 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-29 22:01:20,221 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-29 22:01:20,221 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-29 22:01:20,221 INFO L138 SettingsManager]: * Use SBE=true [2022-09-29 22:01:20,222 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-29 22:01:20,222 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-29 22:01:20,222 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-29 22:01:20,222 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-29 22:01:20,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-29 22:01:20,223 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-29 22:01:20,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-29 22:01:20,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-29 22:01:20,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-29 22:01:20,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-29 22:01:20,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-29 22:01:20,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:01:20,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-29 22:01:20,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-29 22:01:20,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-29 22:01:20,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-29 22:01:20,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-09-29 22:01:20,226 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-09-29 22:01:20,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-09-29 22:01:20,227 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-29 22:01:20,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-29 22:01:20,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-29 22:01:20,444 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-29 22:01:20,445 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-09-29 22:01:20,447 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-09-29 22:01:20,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1612.bpl [2022-09-29 22:01:20,448 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo-bug_1w1r.line1612.bpl' [2022-09-29 22:01:20,549 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-29 22:01:20,551 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-09-29 22:01:20,553 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-29 22:01:20,553 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-29 22:01:20,553 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-29 22:01:20,579 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,580 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,624 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,624 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-29 22:01:20,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-29 22:01:20,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-29 22:01:20,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-29 22:01:20,731 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/1) ... [2022-09-29 22:01:20,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-29 22:01:20,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:01:20,770 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 22:01:20,780 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 22:01:20,813 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-09-29 22:01:20,813 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-09-29 22:01:20,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-29 22:01:20,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-29 22:01:20,816 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 22:01:21,033 INFO L234 CfgBuilder]: Building ICFG [2022-09-29 22:01:21,035 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-29 22:01:22,259 INFO L275 CfgBuilder]: Performing block encoding [2022-09-29 22:01:22,293 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-29 22:01:22,293 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-09-29 22:01:22,297 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:01:22 BoogieIcfgContainer [2022-09-29 22:01:22,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-29 22:01:22,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-29 22:01:22,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-29 22:01:22,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-29 22:01:22,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.09 10:01:20" (1/2) ... [2022-09-29 22:01:22,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fe1a1d4 and model type divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.09 10:01:22, skipping insertion in model container [2022-09-29 22:01:22,305 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.09 10:01:22" (2/2) ... [2022-09-29 22:01:22,306 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo-bug_1w1r.line1612.bpl [2022-09-29 22:01:22,314 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-29 22:01:22,322 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-29 22:01:22,323 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-29 22:01:22,323 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-29 22:01:22,484 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-09-29 22:01:22,558 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-09-29 22:01:22,559 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-09-29 22:01:22,559 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:01:22,567 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 22:01:22,569 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 22:01:22,600 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-09-29 22:01:22,607 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-09-29 22:01:22,613 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;@4c38f4c8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-29 22:01:22,613 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-09-29 22:01:23,114 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:01:23,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:01:23,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1691954937, now seen corresponding path program 1 times [2022-09-29 22:01:23,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:01:23,129 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891872399] [2022-09-29 22:01:23,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:01:23,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:01:23,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:01:23,760 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 22:01:23,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:01:23,761 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891872399] [2022-09-29 22:01:23,761 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891872399] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:01:23,761 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:01:23,762 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-29 22:01:23,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305979951] [2022-09-29 22:01:23,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:01:23,770 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-09-29 22:01:23,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:01:23,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-09-29 22:01:23,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-09-29 22:01:23,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:23,793 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:01:23,795 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 374.5) internal successors, (749), 2 states have internal predecessors, (749), 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 22:01:23,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:24,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:24,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-29 22:01:24,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:01:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:01:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash -1004687095, now seen corresponding path program 1 times [2022-09-29 22:01:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:01:24,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77138493] [2022-09-29 22:01:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:01:24,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:01:24,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:01:28,019 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 22:01:28,020 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:01:28,020 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77138493] [2022-09-29 22:01:28,020 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77138493] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:01:28,020 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:01:28,021 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [62] imperfect sequences [] total 62 [2022-09-29 22:01:28,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948559675] [2022-09-29 22:01:28,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:01:28,024 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2022-09-29 22:01:28,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:01:28,025 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2022-09-29 22:01:28,029 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=3592, Unknown=0, NotChecked=0, Total=3782 [2022-09-29 22:01:28,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:28,031 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:01:28,032 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 13.112903225806452) internal successors, (813), 62 states have internal predecessors, (813), 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 22:01:28,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:28,032 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:44,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:01:44,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-29 22:01:44,513 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:01:44,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:01:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 339664297, now seen corresponding path program 1 times [2022-09-29 22:01:44,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:01:44,515 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690522158] [2022-09-29 22:01:44,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:01:44,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:01:44,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:01:47,811 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 22:01:47,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:01:47,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690522158] [2022-09-29 22:01:47,812 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1690522158] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:01:47,812 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:01:47,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [77] imperfect sequences [] total 77 [2022-09-29 22:01:47,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557565963] [2022-09-29 22:01:47,813 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:01:47,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-09-29 22:01:47,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:01:47,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-09-29 22:01:47,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=252, Invalid=5600, Unknown=0, NotChecked=0, Total=5852 [2022-09-29 22:01:47,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:47,818 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:01:47,819 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 9.818181818181818) internal successors, (756), 77 states have internal predecessors, (756), 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 22:01:47,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:01:47,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:01:47,819 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:09,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:02:09,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 120 states. [2022-09-29 22:02:09,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-29 22:02:09,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:02:09,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:02:09,929 INFO L85 PathProgramCache]: Analyzing trace with hash 699969978, now seen corresponding path program 1 times [2022-09-29 22:02:09,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:02:09,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141989242] [2022-09-29 22:02:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:02:09,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:02:10,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:02:11,240 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 22:02:11,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:02:11,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141989242] [2022-09-29 22:02:11,241 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141989242] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:02:11,241 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:02:11,242 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [42] imperfect sequences [] total 42 [2022-09-29 22:02:11,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113308033] [2022-09-29 22:02:11,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:02:11,243 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-09-29 22:02:11,243 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:02:11,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-09-29 22:02:11,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=1701, Unknown=0, NotChecked=0, Total=1806 [2022-09-29 22:02:11,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:11,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:02:11,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 42 states have (on average 16.19047619047619) internal successors, (680), 43 states have internal predecessors, (680), 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 22:02:11,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:11,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:02:11,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 120 states. [2022-09-29 22:02:11,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:20,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:20,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:02:20,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-09-29 22:02:20,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 67 states. [2022-09-29 22:02:20,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-29 22:02:20,547 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:02:20,547 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:02:20,548 INFO L85 PathProgramCache]: Analyzing trace with hash -2140655448, now seen corresponding path program 1 times [2022-09-29 22:02:20,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:02:20,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097143678] [2022-09-29 22:02:20,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:02:20,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:02:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:02:24,226 INFO L134 CoverageAnalysis]: Checked inductivity of 222 backedges. 165 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2022-09-29 22:02:24,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:02:24,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097143678] [2022-09-29 22:02:24,227 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097143678] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:02:24,227 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-29 22:02:24,227 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [81] imperfect sequences [] total 81 [2022-09-29 22:02:24,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440762581] [2022-09-29 22:02:24,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:02:24,230 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 81 states [2022-09-29 22:02:24,230 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:02:24,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 81 interpolants. [2022-09-29 22:02:24,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=6227, Unknown=0, NotChecked=0, Total=6480 [2022-09-29 22:02:24,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:24,233 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:02:24,234 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 81 states, 81 states have (on average 11.506172839506172) internal successors, (932), 81 states have internal predecessors, (932), 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 22:02:24,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:24,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 98 states. [2022-09-29 22:02:24,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-09-29 22:02:24,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 67 states. [2022-09-29 22:02:24,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:54,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:02:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-09-29 22:02:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 125 states. [2022-09-29 22:02:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-29 22:02:54,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 143 states. [2022-09-29 22:02:54,086 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-29 22:02:54,086 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:02:54,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:02:54,086 INFO L85 PathProgramCache]: Analyzing trace with hash -340001776, now seen corresponding path program 1 times [2022-09-29 22:02:54,087 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:02:54,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957232203] [2022-09-29 22:02:54,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:02:54,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:02:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:02:58,604 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 201 proven. 182 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:02:58,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:02:58,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957232203] [2022-09-29 22:02:58,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1957232203] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:02:58,605 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [953852094] [2022-09-29 22:02:58,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:02:58,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:02:58,606 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:02:58,607 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 22:02:58,610 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 22:02:59,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:02:59,207 INFO L263 TraceCheckSpWp]: Trace formula consists of 2948 conjuncts, 218 conjunts are in the unsatisfiable core [2022-09-29 22:02:59,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:03:00,603 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 22:03:00,609 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 22:03:01,478 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 22:03:01,479 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 22:03:01,835 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 22:03:01,844 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 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 22:03:03,764 INFO L356 Elim1Store]: treesize reduction 15, result has 25.0 percent of original size [2022-09-29 22:03:03,765 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 30 treesize of output 31 [2022-09-29 22:03:03,776 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 10 treesize of output 9 [2022-09-29 22:03:09,695 INFO L134 CoverageAnalysis]: Checked inductivity of 383 backedges. 383 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:03:09,695 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:03:09,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [953852094] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:03:09,696 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:03:09,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [53] imperfect sequences [96] total 147 [2022-09-29 22:03:09,696 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909392285] [2022-09-29 22:03:09,697 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:03:09,698 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-09-29 22:03:09,698 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:03:09,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-09-29 22:03:09,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=543, Invalid=20919, Unknown=0, NotChecked=0, Total=21462 [2022-09-29 22:03:09,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:09,703 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:03:09,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 22.88679245283019) internal successors, (1213), 53 states have internal predecessors, (1213), 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 22:03:09,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:09,704 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-09-29 22:03:09,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 125 states. [2022-09-29 22:03:09,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-09-29 22:03:09,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 143 states. [2022-09-29 22:03:09,705 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-09-29 22:03:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-09-29 22:03:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2022-09-29 22:03:34,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 146 states. [2022-09-29 22:03:34,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-09-29 22:03:34,571 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-09-29 22:03:34,749 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,SelfDestructingSolverStorable5 [2022-09-29 22:03:34,750 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:03:34,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:03:34,751 INFO L85 PathProgramCache]: Analyzing trace with hash -927746878, now seen corresponding path program 1 times [2022-09-29 22:03:34,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:03:34,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964380072] [2022-09-29 22:03:34,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:03:34,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:03:35,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:03:45,913 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 44 proven. 342 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-29 22:03:45,913 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:03:45,913 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964380072] [2022-09-29 22:03:45,913 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964380072] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:03:45,914 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105133128] [2022-09-29 22:03:45,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:03:45,914 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:03:45,914 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:03:45,917 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 22:03:45,918 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 22:03:46,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:03:46,462 INFO L263 TraceCheckSpWp]: Trace formula consists of 2798 conjuncts, 222 conjunts are in the unsatisfiable core [2022-09-29 22:03:46,490 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:03:48,267 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 22:03:48,278 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 22:03:52,457 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-09-29 22:03:52,457 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 22:03:53,377 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:03:53,381 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-09-29 22:03:53,382 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 72 treesize of output 63 [2022-09-29 22:03:53,400 INFO L356 Elim1Store]: treesize reduction 23, result has 17.9 percent of original size [2022-09-29 22:03:53,400 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 74 treesize of output 70 [2022-09-29 22:03:57,128 INFO L356 Elim1Store]: treesize reduction 29, result has 29.3 percent of original size [2022-09-29 22:03:57,129 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 5 new quantified variables, introduced 3 case distinctions, treesize of input 130 treesize of output 78 [2022-09-29 22:03:58,166 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 77 proven. 0 refuted. 0 times theorem prover too weak. 309 trivial. 0 not checked. [2022-09-29 22:03:58,167 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-09-29 22:03:58,172 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105133128] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-29 22:03:58,177 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-09-29 22:03:58,177 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [64] imperfect sequences [129] total 191 [2022-09-29 22:03:58,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331306824] [2022-09-29 22:03:58,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:03:58,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-09-29 22:03:58,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:03:58,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-09-29 22:03:58,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=713, Invalid=35577, Unknown=0, NotChecked=0, Total=36290 [2022-09-29 22:03:58,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:58,188 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:03:58,189 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 13.265625) internal successors, (849), 64 states have internal predecessors, (849), 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 22:03:58,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:03:58,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-09-29 22:03:58,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-09-29 22:03:58,189 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 69 states. [2022-09-29 22:03:58,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 146 states. [2022-09-29 22:03:58,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-09-29 22:03:58,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:04:46,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-09-29 22:04:46,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-09-29 22:04:46,567 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-09-29 22:04:46,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:04:46,745 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:04:46,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:04:46,746 INFO L85 PathProgramCache]: Analyzing trace with hash 1095976268, now seen corresponding path program 1 times [2022-09-29 22:04:46,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:04:46,746 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161648843] [2022-09-29 22:04:46,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:04:46,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:04:47,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:04:49,929 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 359 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-09-29 22:04:49,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:04:49,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161648843] [2022-09-29 22:04:49,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161648843] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:04:49,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1434508563] [2022-09-29 22:04:49,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:04:49,932 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:04:49,932 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:04:49,933 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 22:04:49,934 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 22:04:50,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:04:50,547 INFO L263 TraceCheckSpWp]: Trace formula consists of 3054 conjuncts, 151 conjunts are in the unsatisfiable core [2022-09-29 22:04:50,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:04:57,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:04:57,008 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 21 [2022-09-29 22:04:57,157 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 10 treesize of output 9 [2022-09-29 22:04:57,280 INFO L356 Elim1Store]: treesize reduction 4, result has 75.0 percent of original size [2022-09-29 22:04:57,281 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 19 treesize of output 19 [2022-09-29 22:04:57,844 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:04:57,844 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:04:57,845 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:04:57,846 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:04:57,849 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 22:04:57,849 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 29 treesize of output 17 [2022-09-29 22:04:57,866 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 31 proven. 359 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2022-09-29 22:04:57,866 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 22:04:59,178 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 18 treesize of output 12 [2022-09-29 22:05:03,635 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:05:03,714 INFO L356 Elim1Store]: treesize reduction 13, result has 88.2 percent of original size [2022-09-29 22:05:03,714 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 10 case distinctions, treesize of input 112 treesize of output 174 [2022-09-29 22:05:11,194 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 466 trivial. 0 not checked. [2022-09-29 22:05:11,195 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1434508563] provided 1 perfect and 1 imperfect interpolant sequences [2022-09-29 22:05:11,195 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-09-29 22:05:11,195 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [45] imperfect sequences [55, 54] total 123 [2022-09-29 22:05:11,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157072723] [2022-09-29 22:05:11,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-29 22:05:11,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-09-29 22:05:11,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-29 22:05:11,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-09-29 22:05:11,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=718, Invalid=14286, Unknown=2, NotChecked=0, Total=15006 [2022-09-29 22:05:11,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:05:11,200 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-09-29 22:05:11,203 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 21.711111111111112) internal successors, (977), 45 states have internal predecessors, (977), 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 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 121 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 164 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 184 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 105 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 95 states. [2022-09-29 22:05:11,203 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:05:13,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 121 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 164 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 184 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 105 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2022-09-29 22:05:13,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-09-29 22:05:13,448 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 22:05:13,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:05:13,615 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-09-29 22:05:13,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-29 22:05:13,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1841885238, now seen corresponding path program 1 times [2022-09-29 22:05:13,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-29 22:05:13,616 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281824031] [2022-09-29 22:05:13,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:05:13,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-29 22:05:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:05:33,277 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 4 proven. 414 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-09-29 22:05:33,278 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-29 22:05:33,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281824031] [2022-09-29 22:05:33,278 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281824031] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-29 22:05:33,278 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [91367296] [2022-09-29 22:05:33,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-29 22:05:33,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:05:33,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-29 22:05:33,279 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-29 22:05:33,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-09-29 22:05:33,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-29 22:05:33,811 INFO L263 TraceCheckSpWp]: Trace formula consists of 2969 conjuncts, 397 conjunts are in the unsatisfiable core [2022-09-29 22:05:33,835 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-29 22:05:41,434 INFO L356 Elim1Store]: treesize reduction 4, result has 71.4 percent of original size [2022-09-29 22:05:41,434 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 17 treesize of output 17 [2022-09-29 22:05:43,588 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:43,589 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 17 treesize of output 19 [2022-09-29 22:05:44,132 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 22:05:44,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:44,156 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 17 treesize of output 19 [2022-09-29 22:05:44,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:44,939 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 24 treesize of output 23 [2022-09-29 22:05:44,952 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 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 22:05:46,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:46,556 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-09-29 22:05:46,556 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 31 treesize of output 53 [2022-09-29 22:05:46,588 INFO L356 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-09-29 22:05:46,588 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 30 treesize of output 50 [2022-09-29 22:05:48,090 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:48,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 74 treesize of output 70 [2022-09-29 22:05:48,096 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 74 treesize of output 72 [2022-09-29 22:05:50,317 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:50,345 INFO L356 Elim1Store]: treesize reduction 40, result has 49.4 percent of original size [2022-09-29 22:05:50,345 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 3 new quantified variables, introduced 2 case distinctions, treesize of input 107 treesize of output 102 [2022-09-29 22:05:50,379 INFO L356 Elim1Store]: treesize reduction 36, result has 49.3 percent of original size [2022-09-29 22:05:50,379 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 54 treesize of output 70 [2022-09-29 22:05:52,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:52,053 INFO L356 Elim1Store]: treesize reduction 72, result has 46.7 percent of original size [2022-09-29 22:05:52,053 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 7 case distinctions, treesize of input 90 treesize of output 122 [2022-09-29 22:05:52,061 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:05:52,061 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 100 treesize of output 102 [2022-09-29 22:06:10,411 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:10,411 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:06:10,412 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:06:10,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:10,414 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:10,419 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-09-29 22:06:10,419 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 3 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 9 case distinctions, treesize of input 129 treesize of output 72 [2022-09-29 22:06:11,921 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 22:06:11,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:11,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-09-29 22:06:11,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:11,932 INFO L356 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2022-09-29 22:06:11,933 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 2 disjoint index pairs (out of 21 index pairs), introduced 8 new quantified variables, introduced 3 case distinctions, treesize of input 83 treesize of output 68 [2022-09-29 22:06:12,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:12,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-09-29 22:06:12,712 INFO L356 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-09-29 22:06:12,712 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 6 new quantified variables, introduced 1 case distinctions, treesize of input 81 treesize of output 29 [2022-09-29 22:06:13,202 INFO L134 CoverageAnalysis]: Checked inductivity of 466 backedges. 31 proven. 364 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2022-09-29 22:06:13,202 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-29 22:06:15,235 INFO L356 Elim1Store]: treesize reduction 11, result has 8.3 percent of original size [2022-09-29 22:06:15,236 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 27 treesize of output 19 [2022-09-29 22:06:16,557 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-09-29 22:06:16,558 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 1 case distinctions, treesize of input 72 treesize of output 75 [2022-09-29 22:06:52,219 WARN L233 SmtUtils]: Spent 12.42s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:07:18,220 WARN L233 SmtUtils]: Spent 14.63s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:07:39,060 WARN L233 SmtUtils]: Spent 10.31s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:08:06,558 WARN L233 SmtUtils]: Spent 16.21s on a formula simplification that was a NOOP. DAG size: 77 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:08:37,037 WARN L233 SmtUtils]: Spent 12.24s on a formula simplification that was a NOOP. DAG size: 80 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:09:20,387 WARN L233 SmtUtils]: Spent 23.13s on a formula simplification that was a NOOP. DAG size: 78 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:10:59,624 WARN L233 SmtUtils]: Spent 26.43s on a formula simplification that was a NOOP. DAG size: 183 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:12:18,990 WARN L233 SmtUtils]: Spent 22.30s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-09-29 22:13:59,896 WARN L233 SmtUtils]: Spent 22.29s on a formula simplification that was a NOOP. DAG size: 182 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-09-29 22:14:35,655 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:14:35,669 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:14:35,669 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-09-29 22:14:35,719 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-09-29 22:14:35,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-09-29 22:14:35,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-29 22:14:35,920 WARN L619 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1198 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 339 known predicates. [2022-09-29 22:14:35,924 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-29 22:14:35,926 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was TIMEOUT (1/2) [2022-09-29 22:14:35,927 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-29 22:14:35,928 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-29 22:14:35,930 INFO L202 PluginConnector]: Adding new model divinefifo-bug_1w1r.line1612.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.09 10:14:35 BasicIcfg [2022-09-29 22:14:35,930 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-29 22:14:35,930 INFO L158 Benchmark]: Toolchain (without parser) took 795379.59ms. Allocated memory was 178.3MB in the beginning and 1.1GB in the end (delta: 937.4MB). Free memory was 125.3MB in the beginning and 557.5MB in the end (delta: -432.2MB). Peak memory consumption was 506.6MB. Max. memory is 8.0GB. [2022-09-29 22:14:35,930 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.16ms. Allocated memory is still 178.3MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-29 22:14:35,931 INFO L158 Benchmark]: Boogie Preprocessor took 171.08ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 146.2MB in the end (delta: -20.9MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. [2022-09-29 22:14:35,931 INFO L158 Benchmark]: RCFGBuilder took 1571.93ms. Allocated memory was 178.3MB in the beginning and 227.5MB in the end (delta: 49.3MB). Free memory was 146.1MB in the beginning and 177.2MB in the end (delta: -31.1MB). Peak memory consumption was 64.4MB. Max. memory is 8.0GB. [2022-09-29 22:14:35,931 INFO L158 Benchmark]: TraceAbstraction took 793631.11ms. Allocated memory was 227.5MB in the beginning and 1.1GB in the end (delta: 888.1MB). Free memory was 176.7MB in the beginning and 557.5MB in the end (delta: -380.8MB). Peak memory consumption was 507.9MB. Max. memory is 8.0GB. [2022-09-29 22:14:35,932 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 0.16ms. Allocated memory is still 178.3MB. Free memory is still 132.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 171.08ms. Allocated memory is still 178.3MB. Free memory was 125.3MB in the beginning and 146.2MB in the end (delta: -20.9MB). Peak memory consumption was 14.6MB. Max. memory is 8.0GB. * RCFGBuilder took 1571.93ms. Allocated memory was 178.3MB in the beginning and 227.5MB in the end (delta: 49.3MB). Free memory was 146.1MB in the beginning and 177.2MB in the end (delta: -31.1MB). Peak memory consumption was 64.4MB. Max. memory is 8.0GB. * TraceAbstraction took 793631.11ms. Allocated memory was 227.5MB in the beginning and 1.1GB in the end (delta: 888.1MB). Free memory was 176.7MB in the beginning and 557.5MB in the end (delta: -380.8MB). Peak memory consumption was 507.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 551, positive: 532, positive conditional: 532, positive unconditional: 0, negative: 19, negative conditional: 19, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 532, Positive cache size: 532, Positive conditional cache size: 0, Positive unconditional cache size: 532, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 19, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1736, positive: 1686, positive conditional: 1686, positive unconditional: 0, negative: 50, negative conditional: 50, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 1686, Positive cache size: 1686, Positive conditional cache size: 0, Positive unconditional cache size: 1686, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 69, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2362, positive: 2286, positive conditional: 2286, positive unconditional: 0, negative: 76, negative conditional: 76, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 2234, Positive cache size: 2234, Positive conditional cache size: 0, Positive unconditional cache size: 2234, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 145, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2096, positive: 2027, positive conditional: 2027, positive unconditional: 0, negative: 69, negative conditional: 69, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 2266, Positive cache size: 2266, Positive conditional cache size: 0, Positive unconditional cache size: 2266, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 214, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2980, positive: 2887, positive conditional: 2887, positive unconditional: 0, negative: 93, negative conditional: 93, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 2307, Positive cache size: 2307, Positive conditional cache size: 0, Positive unconditional cache size: 2307, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 307, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4327, positive: 4189, positive conditional: 4189, positive unconditional: 0, negative: 138, negative conditional: 138, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 2605, Positive cache size: 2605, Positive conditional cache size: 0, Positive unconditional cache size: 2605, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 445, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 4500, positive: 4354, positive conditional: 4354, positive unconditional: 0, negative: 146, negative conditional: 146, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 2621, Positive cache size: 2621, Positive conditional cache size: 0, Positive unconditional cache size: 2621, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 591, Statistics for Abstraction: - StatisticsResult: Independence relation #8 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2203, positive: 2130, positive conditional: 2130, positive unconditional: 0, negative: 73, negative conditional: 73, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 3450, Positive cache size: 3448, Positive conditional cache size: 0, Positive unconditional cache size: 3448, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 662, Statistics for Abstraction: - StatisticsResult: Independence relation #9 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2196, positive: 2123, positive conditional: 2123, positive unconditional: 0, negative: 73, negative conditional: 73, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 22951, positive: 22214, positive conditional: 22214, positive unconditional: 0, negative: 737, negative conditional: 737, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 22218, positive: 22214, positive conditional: 0, positive unconditional: 22214, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3482, positive: 3480, positive conditional: 0, positive unconditional: 3480, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 22218, positive: 18734, positive conditional: 0, positive unconditional: 18734, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 3482, unknown conditional: 0, unknown unconditional: 3482] , Statistics on independence cache: Total cache size (in pairs): 3482, Positive cache size: 3480, Positive conditional cache size: 0, Positive unconditional cache size: 3480, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 733, Statistics for Abstraction: - TimeoutResultAtElement [Line: 1612]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1198 with TraceHistMax 4,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantified with 0quantifier alternations) to 339 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 3 procedures, 1463 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 793.4s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 153.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 791, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 72.4s InterpolantComputationTime, 11184 NumberOfCodeBlocks, 11184 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 12402 ConstructedInterpolants, 193 QuantifiedInterpolants, 210009 SizeOfPredicates, 276 NumberOfNonLiveVariables, 8800 ConjunctsInSsa, 591 ConjunctsInUnsatCore, 12 InterpolantComputations, 8 PerfectInterpolantSequences, 1916/3158 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown