/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/stack_longest-2.line623.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-04 14:27:34,185 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-04 14:27:34,186 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-04 14:27:34,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-04 14:27:34,212 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-04 14:27:34,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-04 14:27:34,219 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-04 14:27:34,225 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-04 14:27:34,227 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-04 14:27:34,233 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-04 14:27:34,233 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-04 14:27:34,234 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-04 14:27:34,234 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-04 14:27:34,235 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-04 14:27:34,236 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-04 14:27:34,237 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-04 14:27:34,237 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-04 14:27:34,238 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-04 14:27:34,239 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-04 14:27:34,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-04 14:27:34,242 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-04 14:27:34,244 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-04 14:27:34,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-04 14:27:34,248 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-04 14:27:34,258 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-04 14:27:34,267 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-04 14:27:34,268 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-04 14:27:34,268 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-04 14:27:34,269 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-04 14:27:34,303 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-04 14:27:34,303 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-04 14:27:34,303 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-04 14:27:34,304 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-04 14:27:34,304 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-04 14:27:34,304 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-04 14:27:34,305 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-04 14:27:34,305 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-04 14:27:34,305 INFO L138 SettingsManager]: * Use SBE=true [2022-10-04 14:27:34,305 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-04 14:27:34,305 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-04 14:27:34,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-04 14:27:34,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-04 14:27:34,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-04 14:27:34,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-04 14:27:34,309 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-04 14:27:34,309 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-04 14:27:34,309 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:27:34,309 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-04 14:27:34,309 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-04 14:27:34,310 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-04 14:27:34,310 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-04 14:27:34,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-04 14:27:34,310 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-04 14:27:34,310 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-04 14:27:34,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-04 14:27:34,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-04 14:27:34,311 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-04 14:27:34,312 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-04 14:27:34,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-04 14:27:34,312 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-04 14:27:34,523 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-04 14:27:34,548 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-04 14:27:34,550 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-04 14:27:34,552 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-04 14:27:34,555 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-04 14:27:34,556 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longest-2.line623.bpl [2022-10-04 14:27:34,557 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/stack_longest-2.line623.bpl' [2022-10-04 14:27:34,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-04 14:27:34,604 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-04 14:27:34,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-04 14:27:34,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-04 14:27:34,605 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-04 14:27:34,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,620 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,645 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,672 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,674 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-04 14:27:34,687 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-04 14:27:34,687 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-04 14:27:34,687 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-04 14:27:34,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/1) ... [2022-10-04 14:27:34,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-04 14:27:34,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:34,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-04 14:27:34,724 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-04 14:27:34,757 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2022-10-04 14:27:34,757 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2022-10-04 14:27:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2022-10-04 14:27:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2022-10-04 14:27:34,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-04 14:27:34,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-04 14:27:34,759 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-04 14:27:34,926 INFO L234 CfgBuilder]: Building ICFG [2022-10-04 14:27:34,927 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-04 14:27:35,307 INFO L275 CfgBuilder]: Performing block encoding [2022-10-04 14:27:35,323 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-04 14:27:35,323 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-04 14:27:35,325 INFO L202 PluginConnector]: Adding new model stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:27:35 BoogieIcfgContainer [2022-10-04 14:27:35,325 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-04 14:27:35,328 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-04 14:27:35,328 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-04 14:27:35,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-04 14:27:35,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.10 02:27:34" (1/2) ... [2022-10-04 14:27:35,335 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@406aed4f and model type stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.10 02:27:35, skipping insertion in model container [2022-10-04 14:27:35,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.10 02:27:35" (2/2) ... [2022-10-04 14:27:35,337 INFO L112 eAbstractionObserver]: Analyzing ICFG stack_longest-2.line623.bpl [2022-10-04 14:27:35,345 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-04 14:27:35,353 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-04 14:27:35,353 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-04 14:27:35,353 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-04 14:27:35,496 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-10-04 14:27:35,551 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:27:35,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:27:35,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:35,559 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:27:35,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-10-04 14:27:35,609 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:27:35,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-04 14:27:35,627 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;@6ccf2709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:27:35,627 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:27:35,818 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:35,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:35,823 INFO L85 PathProgramCache]: Analyzing trace with hash 1760007626, now seen corresponding path program 1 times [2022-10-04 14:27:35,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:35,831 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1703919476] [2022-10-04 14:27:35,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:35,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:36,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:36,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:36,103 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1703919476] [2022-10-04 14:27:36,104 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1703919476] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:36,104 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:27:36,104 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-04 14:27:36,105 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [581999334] [2022-10-04 14:27:36,106 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:36,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-04 14:27:36,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:36,126 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-04 14:27:36,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-04 14:27:36,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,130 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:36,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 72.0) internal successors, (144), 2 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:36,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,152 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-04 14:27:36,152 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:36,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:36,153 INFO L85 PathProgramCache]: Analyzing trace with hash -792149335, now seen corresponding path program 1 times [2022-10-04 14:27:36,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:36,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552879044] [2022-10-04 14:27:36,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:36,154 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:36,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:36,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:36,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:36,311 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552879044] [2022-10-04 14:27:36,311 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552879044] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:36,311 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:27:36,311 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 14:27:36,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389659516] [2022-10-04 14:27:36,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:36,313 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 14:27:36,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:36,313 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 14:27:36,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 14:27:36,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,314 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:36,315 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.0) internal successors, (144), 3 states have internal predecessors, (144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:36,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,468 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:36,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-04 14:27:36,469 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:36,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:36,470 INFO L85 PathProgramCache]: Analyzing trace with hash 887449735, now seen corresponding path program 1 times [2022-10-04 14:27:36,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:36,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776388296] [2022-10-04 14:27:36,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:36,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:36,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:36,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:36,632 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:36,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776388296] [2022-10-04 14:27:36,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776388296] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:36,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-04 14:27:36,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-04 14:27:36,633 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1843327213] [2022-10-04 14:27:36,633 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:36,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-04 14:27:36,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:36,634 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-04 14:27:36,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-04 14:27:36,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,635 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:36,635 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 60.666666666666664) internal successors, (182), 3 states have internal predecessors, (182), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:36,635 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:36,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:36,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:36,712 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-04 14:27:36,712 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:36,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:36,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1361202411, now seen corresponding path program 1 times [2022-10-04 14:27:36,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:36,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979047091] [2022-10-04 14:27:36,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:36,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:36,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979047091] [2022-10-04 14:27:36,918 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979047091] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:36,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [301076505] [2022-10-04 14:27:36,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:36,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:36,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:36,924 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-04 14:27:36,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-04 14:27:37,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:37,085 INFO L263 TraceCheckSpWp]: Trace formula consists of 442 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-04 14:27:37,094 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:37,231 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:37,232 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:27:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:37,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [301076505] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:27:37,350 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:27:37,351 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-04 14:27:37,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198125375] [2022-10-04 14:27:37,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:27:37,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-04 14:27:37,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:37,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-04 14:27:37,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-04 14:27:37,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,363 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:37,364 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 32.0) internal successors, (320), 10 states have internal predecessors, (320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,364 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:37,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:37,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:37,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:37,715 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,SelfDestructingSolverStorable3 [2022-10-04 14:27:37,716 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:37,716 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:37,716 INFO L85 PathProgramCache]: Analyzing trace with hash 1073677905, now seen corresponding path program 1 times [2022-10-04 14:27:37,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:37,716 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590687644] [2022-10-04 14:27:37,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:37,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:37,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:37,897 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 74 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-04 14:27:37,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:37,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590687644] [2022-10-04 14:27:37,898 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590687644] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:37,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [226066185] [2022-10-04 14:27:37,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:37,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:37,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:37,904 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) [2022-10-04 14:27:37,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-04 14:27:38,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:38,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 578 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-04 14:27:38,076 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:38,302 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 74 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-04 14:27:38,303 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-04 14:27:38,530 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 74 proven. 27 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-04 14:27:38,530 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [226066185] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-04 14:27:38,531 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-04 14:27:38,531 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-04 14:27:38,531 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562009115] [2022-10-04 14:27:38,532 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-04 14:27:38,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-04 14:27:38,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:38,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-04 14:27:38,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-04 14:27:38,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:38,534 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:38,535 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 60.6) internal successors, (606), 10 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:38,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:38,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:38,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:38,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:38,535 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:38,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-04 14:27:38,715 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:38,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:38,900 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-04 14:27:38,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-04 14:27:38,900 INFO L85 PathProgramCache]: Analyzing trace with hash 1158641389, now seen corresponding path program 2 times [2022-10-04 14:27:38,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-04 14:27:38,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049668366] [2022-10-04 14:27:38,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-04 14:27:38,901 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-04 14:27:38,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-04 14:27:39,101 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 177 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-04 14:27:39,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-04 14:27:39,102 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2049668366] [2022-10-04 14:27:39,102 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2049668366] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-04 14:27:39,106 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [486534427] [2022-10-04 14:27:39,106 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-04 14:27:39,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:39,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:39,108 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) [2022-10-04 14:27:39,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-04 14:27:39,239 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-04 14:27:39,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-04 14:27:39,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-04 14:27:39,245 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-04 14:27:39,875 INFO L134 CoverageAnalysis]: Checked inductivity of 177 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 177 trivial. 0 not checked. [2022-10-04 14:27:39,875 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-04 14:27:39,875 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [486534427] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-04 14:27:39,876 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-04 14:27:39,876 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 14 [2022-10-04 14:27:39,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790969721] [2022-10-04 14:27:39,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-04 14:27:39,877 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-04 14:27:39,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-04 14:27:39,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-04 14:27:39,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2022-10-04 14:27:39,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:39,878 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-04 14:27:39,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 33.666666666666664) internal successors, (202), 7 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-04 14:27:39,878 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-10-04 14:27:39,879 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:49,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-04 14:27:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-04 14:27:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-04 14:27:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-04 14:27:49,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-04 14:27:49,191 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-04 14:27:49,220 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:49,414 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-04 14:27:49,418 INFO L444 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-10-04 14:27:49,420 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT was SAFE (1/3) [2022-10-04 14:27:49,425 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:27:49,425 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:27:49,426 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:49,430 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:27:49,432 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Waiting until timeout for monitored process [2022-10-04 14:27:49,435 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:27:49,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 14:27:49,436 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;@6ccf2709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:27:49,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:27:49,568 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 14:27:49,571 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 14:27:49,571 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (2/3) [2022-10-04 14:27:49,575 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-04 14:27:49,575 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-04 14:27:49,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-04 14:27:49,612 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-04 14:27:49,614 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Waiting until timeout for monitored process [2022-10-04 14:27:49,616 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-04 14:27:49,617 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-04 14:27:49,617 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;@6ccf2709, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-04 14:27:49,617 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-04 14:27:49,620 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-04 14:27:49,620 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-04 14:27:49,621 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (3/3) [2022-10-04 14:27:49,621 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-10-04 14:27:49,621 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-04 14:27:49,625 INFO L202 PluginConnector]: Adding new model stack_longest-2.line623.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.10 02:27:49 BasicIcfg [2022-10-04 14:27:49,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-04 14:27:49,625 INFO L158 Benchmark]: Toolchain (without parser) took 15021.54ms. Allocated memory was 188.7MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 145.9MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-10-04 14:27:49,626 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.36ms. Allocated memory is still 188.7MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-04 14:27:49,626 INFO L158 Benchmark]: Boogie Preprocessor took 72.24ms. Allocated memory is still 188.7MB. Free memory was 145.9MB in the beginning and 143.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-04 14:27:49,626 INFO L158 Benchmark]: RCFGBuilder took 638.26ms. Allocated memory is still 188.7MB. Free memory was 143.2MB in the beginning and 158.9MB in the end (delta: -15.7MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. [2022-10-04 14:27:49,626 INFO L158 Benchmark]: TraceAbstraction took 14297.43ms. Allocated memory was 188.7MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 158.6MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. [2022-10-04 14:27:49,630 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 0.36ms. Allocated memory is still 188.7MB. Free memory is still 148.7MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 72.24ms. Allocated memory is still 188.7MB. Free memory was 145.9MB in the beginning and 143.2MB in the end (delta: 2.7MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 638.26ms. Allocated memory is still 188.7MB. Free memory was 143.2MB in the beginning and 158.9MB in the end (delta: -15.7MB). Peak memory consumption was 23.8MB. Max. memory is 8.0GB. * TraceAbstraction took 14297.43ms. Allocated memory was 188.7MB in the beginning and 5.4GB in the end (delta: 5.3GB). Free memory was 158.6MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.0GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 61, positive: 58, positive conditional: 58, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 3, Statistics for Abstraction: - StatisticsResult: Independence relation #2 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 60, positive: 57, positive conditional: 57, positive unconditional: 0, negative: 3, negative conditional: 3, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 48, Positive cache size: 48, Positive conditional cache size: 0, Positive unconditional cache size: 48, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 6, Statistics for Abstraction: - StatisticsResult: Independence relation #3 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 397, positive: 364, positive conditional: 364, positive unconditional: 0, negative: 33, negative conditional: 33, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 356, Positive cache size: 356, Positive conditional cache size: 0, Positive unconditional cache size: 356, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 39, Statistics for Abstraction: - StatisticsResult: Independence relation #4 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 482, positive: 436, positive conditional: 436, positive unconditional: 0, negative: 46, negative conditional: 46, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 403, Positive cache size: 403, Positive conditional cache size: 0, Positive unconditional cache size: 403, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 85, Statistics for Abstraction: - StatisticsResult: Independence relation #5 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1444, positive: 1298, positive conditional: 1298, 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: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 411, Positive cache size: 411, Positive conditional cache size: 0, Positive unconditional cache size: 411, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 231, Statistics for Abstraction: - StatisticsResult: Independence relation #6 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 2042, positive: 1812, positive conditional: 1812, positive unconditional: 0, negative: 230, negative conditional: 230, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 415, Positive cache size: 415, Positive conditional cache size: 0, Positive unconditional cache size: 415, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 461, Statistics for Abstraction: - StatisticsResult: Independence relation #7 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 790832, positive: 744215, positive conditional: 744215, positive unconditional: 0, negative: 46617, negative conditional: 46617, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 795318, positive: 748240, positive conditional: 748240, positive unconditional: 0, negative: 47078, negative conditional: 47078, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 749673, positive: 748240, positive conditional: 0, positive unconditional: 748240, negative: 1433, negative conditional: 0, negative unconditional: 1433, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7627, positive: 7611, positive conditional: 0, positive unconditional: 7611, negative: 16, negative conditional: 0, negative unconditional: 16, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 749673, positive: 740629, positive conditional: 0, positive unconditional: 740629, negative: 1417, negative conditional: 0, negative unconditional: 1417, unknown: 7627, unknown conditional: 0, unknown unconditional: 7627] , Statistics on independence cache: Total cache size (in pairs): 7627, Positive cache size: 7611, Positive conditional cache size: 0, Positive unconditional cache size: 7611, Negative cache size: 16, Negative conditional cache size: 0, Negative unconditional cache size: 16, Independence queries for same thread: 45645, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 1085, positive: 1001, positive conditional: 1001, positive unconditional: 0, negative: 84, negative conditional: 84, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1085, positive: 1001, positive conditional: 1001, positive unconditional: 0, negative: 84, negative conditional: 84, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1003, positive: 1001, positive conditional: 0, positive unconditional: 1001, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 997, positive: 995, positive conditional: 0, positive unconditional: 995, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1003, positive: 6, positive conditional: 0, positive unconditional: 6, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 997, unknown conditional: 0, unknown unconditional: 997] , Statistics on independence cache: Total cache size (in pairs): 997, Positive cache size: 995, Positive conditional cache size: 0, Positive unconditional cache size: 995, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 82, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - PositiveResult [Line: 623]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for error location: ULTIMATE.startErr0ASSERT_VIOLATIONASSERT with 1 thread instances CFG has 5 procedures, 441 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 13.8s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 2, EmptinessCheckTime: 10.0s, 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: 43, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 2.0s InterpolantComputationTime, 2066 NumberOfCodeBlocks, 1892 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 2535 ConstructedInterpolants, 0 QuantifiedInterpolants, 6337 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1358 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 11 InterpolantComputations, 4 PerfectInterpolantSequences, 436/697 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 - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 441 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.1s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.1s, 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: 0, 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: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency: ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES with 1 thread instances CFG has 5 procedures, 441 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, 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: 0, 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: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-04 14:27:49,655 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (7)] Ended with exit code 0 [2022-10-04 14:27:49,858 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (6)] Forceful destruction successful, exit code 0 [2022-10-04 14:27:50,059 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-10-04 14:27:50,444 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-10-04 14:27:50,448 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...