/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/NewStatesSleepPersistentFixedOrder.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_THREAD_INSTANCE --traceabstraction.maximal.amount.of.steps.the.threads.are.allowed.to.take.successively 1 --traceabstraction.enable.heuristic.with.loops.as.step.type false --traceabstraction.considered.threads.and.their.maximal.amount.of.steps X --traceabstraction.defines.what.statements.are.considered.a.step.in.por ALL_READ_WRITE -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-03 21:29:44,707 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-03 21:29:44,778 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-03 21:29:44,800 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-03 21:29:44,801 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-03 21:29:44,801 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-03 21:29:44,801 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-03 21:29:44,802 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-03 21:29:44,802 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-03 21:29:44,802 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-03 21:29:44,802 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-03 21:29:44,802 INFO L138 SettingsManager]: * Use SBE=true [2023-05-03 21:29:44,802 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-03 21:29:44,803 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-03 21:29:44,804 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 21:29:44,804 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-03 21:29:44,804 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-03 21:29:44,805 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Considered threads and their maximal amount of steps -> X Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Defines what statements are considered a step in POR -> ALL_READ_WRITE [2023-05-03 21:29:44,995 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-03 21:29:45,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-03 21:29:45,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-03 21:29:45,015 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-03 21:29:45,017 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-03 21:29:45,018 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl [2023-05-03 21:29:45,018 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr-alt.wvr.bpl' [2023-05-03 21:29:45,034 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-03 21:29:45,035 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-03 21:29:45,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-03 21:29:45,036 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-03 21:29:45,036 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-03 21:29:45,044 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,049 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,054 INFO L138 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-03 21:29:45,055 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-03 21:29:45,056 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-03 21:29:45,056 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-03 21:29:45,056 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-03 21:29:45,062 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,062 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,064 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,067 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,068 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,069 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-03 21:29:45,070 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-03 21:29:45,070 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-03 21:29:45,070 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-03 21:29:45,071 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/1) ... [2023-05-03 21:29:45,075 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 21:29:45,080 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:45,110 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) [2023-05-03 21:29:45,115 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 [2023-05-03 21:29:45,144 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-03 21:29:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-03 21:29:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-03 21:29:45,145 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-03 21:29:45,145 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-03 21:29:45,145 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-03 21:29:45,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-03 21:29:45,146 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-03 21:29:45,146 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-03 21:29:45,147 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2023-05-03 21:29:45,197 INFO L235 CfgBuilder]: Building ICFG [2023-05-03 21:29:45,199 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-03 21:29:45,286 INFO L276 CfgBuilder]: Performing block encoding [2023-05-03 21:29:45,307 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-03 21:29:45,307 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-03 21:29:45,309 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:29:45 BoogieIcfgContainer [2023-05-03 21:29:45,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-03 21:29:45,312 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-03 21:29:45,312 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-03 21:29:45,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-03 21:29:45,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 09:29:45" (1/2) ... [2023-05-03 21:29:45,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ba3a444 and model type nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 09:29:45, skipping insertion in model container [2023-05-03 21:29:45,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 09:29:45" (2/2) ... [2023-05-03 21:29:45,316 INFO L112 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr-alt.wvr.bpl [2023-05-03 21:29:45,324 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-03 21:29:45,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-03 21:29:45,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-03 21:29:45,329 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-03 21:29:45,363 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-05-03 21:29:45,397 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 21:29:45,397 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-03 21:29:45,398 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:45,399 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) [2023-05-03 21:29:45,441 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 [2023-05-03 21:29:45,460 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-03 21:29:45,473 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-03 21:29:45,479 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;@7333cea4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 21:29:45,480 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-05-03 21:29:45,594 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:45,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:45,597 INFO L85 PathProgramCache]: Analyzing trace with hash 1261017551, now seen corresponding path program 1 times [2023-05-03 21:29:45,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:45,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887640843] [2023-05-03 21:29:45,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:45,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:45,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:45,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:45,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:45,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887640843] [2023-05-03 21:29:45,944 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887640843] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:45,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755361873] [2023-05-03 21:29:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:45,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:45,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:45,946 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) [2023-05-03 21:29:45,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-05-03 21:29:45,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:45,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2023-05-03 21:29:45,993 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:46,082 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:46,082 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:46,225 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:46,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755361873] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:46,226 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:46,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 6] total 9 [2023-05-03 21:29:46,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169214396] [2023-05-03 21:29:46,228 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:46,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-05-03 21:29:46,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:46,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-05-03 21:29:46,244 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2023-05-03 21:29:46,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:46,245 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:46,246 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 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) [2023-05-03 21:29:46,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:46,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-05-03 21:29:46,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-05-03 21:29:46,521 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,SelfDestructingSolverStorable0 [2023-05-03 21:29:46,533 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:46,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:46,533 INFO L85 PathProgramCache]: Analyzing trace with hash -1602194607, now seen corresponding path program 2 times [2023-05-03 21:29:46,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:46,534 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609979903] [2023-05-03 21:29:46,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:46,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:46,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:46,818 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:46,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609979903] [2023-05-03 21:29:46,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609979903] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:46,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716892203] [2023-05-03 21:29:46,819 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 21:29:46,819 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:46,819 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:46,820 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) [2023-05-03 21:29:46,852 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-05-03 21:29:46,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 21:29:46,872 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 21:29:46,873 INFO L263 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 15 conjunts are in the unsatisfiable core [2023-05-03 21:29:46,874 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:47,097 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:47,674 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:47,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1716892203] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:47,675 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:47,675 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 24 [2023-05-03 21:29:47,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828420216] [2023-05-03 21:29:47,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:47,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-05-03 21:29:47,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:47,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-05-03 21:29:47,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=109, Invalid=491, Unknown=0, NotChecked=0, Total=600 [2023-05-03 21:29:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:47,682 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:47,683 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 1.96) internal successors, (49), 24 states have internal predecessors, (49), 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) [2023-05-03 21:29:47,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2023-05-03 21:29:47,683 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:47,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:47,920 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-05-03 21:29:48,118 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:48,119 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:48,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:48,119 INFO L85 PathProgramCache]: Analyzing trace with hash -486972919, now seen corresponding path program 3 times [2023-05-03 21:29:48,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:48,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297035250] [2023-05-03 21:29:48,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:48,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:48,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:48,386 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:48,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:48,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297035250] [2023-05-03 21:29:48,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297035250] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:48,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1342155070] [2023-05-03 21:29:48,387 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 21:29:48,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:48,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:48,389 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) [2023-05-03 21:29:48,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-05-03 21:29:48,431 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 21:29:48,432 WARN L261 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 25 conjunts are in the unsatisfiable core [2023-05-03 21:29:48,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:48,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-05-03 21:29:48,705 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:48,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:49,062 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:49,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1342155070] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:49,062 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:49,062 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 11] total 29 [2023-05-03 21:29:49,062 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154765720] [2023-05-03 21:29:49,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:49,063 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2023-05-03 21:29:49,063 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:49,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2023-05-03 21:29:49,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2023-05-03 21:29:49,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:49,064 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:49,064 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.033333333333333) internal successors, (61), 29 states have internal predecessors, (61), 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) [2023-05-03 21:29:49,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:49,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:49,064 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:50,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:50,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2023-05-03 21:29:50,308 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-05-03 21:29:50,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:50,494 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:50,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:50,494 INFO L85 PathProgramCache]: Analyzing trace with hash -555342057, now seen corresponding path program 4 times [2023-05-03 21:29:50,495 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:50,495 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836123918] [2023-05-03 21:29:50,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:50,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:50,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:50,867 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2023-05-03 21:29:50,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:50,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836123918] [2023-05-03 21:29:50,867 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836123918] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:50,867 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2027715938] [2023-05-03 21:29:50,867 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-03 21:29:50,867 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:50,868 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:50,868 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) [2023-05-03 21:29:50,893 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-03 21:29:50,894 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 21:29:50,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-05-03 21:29:50,894 WARN L261 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 45 conjunts are in the unsatisfiable core [2023-05-03 21:29:50,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:51,297 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:51,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:51,891 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:51,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2027715938] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:51,892 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:51,892 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17, 15] total 39 [2023-05-03 21:29:51,892 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514919184] [2023-05-03 21:29:51,892 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:51,893 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2023-05-03 21:29:51,893 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:51,894 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2023-05-03 21:29:51,894 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1324, Unknown=0, NotChecked=0, Total=1560 [2023-05-03 21:29:51,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:51,894 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:51,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.1) internal successors, (84), 39 states have internal predecessors, (84), 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) [2023-05-03 21:29:51,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:51,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:51,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2023-05-03 21:29:51,895 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2023-05-03 21:29:53,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2023-05-03 21:29:53,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-05-03 21:29:53,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:53,724 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:53,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:53,725 INFO L85 PathProgramCache]: Analyzing trace with hash -826171111, now seen corresponding path program 5 times [2023-05-03 21:29:53,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:53,725 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147248760] [2023-05-03 21:29:53,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:53,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:53,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:53,930 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-03 21:29:53,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:53,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147248760] [2023-05-03 21:29:53,931 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147248760] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:53,931 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [601183372] [2023-05-03 21:29:53,931 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-03 21:29:53,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:53,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:53,932 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 21:29:53,934 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-05-03 21:29:53,955 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2023-05-03 21:29:53,955 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 21:29:53,956 WARN L261 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 37 conjunts are in the unsatisfiable core [2023-05-03 21:29:53,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:54,280 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:54,281 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:54,709 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:54,710 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [601183372] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:54,710 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:54,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15, 13] total 33 [2023-05-03 21:29:54,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97748410] [2023-05-03 21:29:54,711 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:54,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2023-05-03 21:29:54,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:54,712 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2023-05-03 21:29:54,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=184, Invalid=938, Unknown=0, NotChecked=0, Total=1122 [2023-05-03 21:29:54,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:54,714 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:54,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 33 states have internal predecessors, (72), 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) [2023-05-03 21:29:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:54,714 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2023-05-03 21:29:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2023-05-03 21:29:54,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:56,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-03 21:29:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2023-05-03 21:29:56,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2023-05-03 21:29:56,912 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-05-03 21:29:57,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:57,111 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2023-05-03 21:29:57,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 21:29:57,113 INFO L85 PathProgramCache]: Analyzing trace with hash -719830543, now seen corresponding path program 6 times [2023-05-03 21:29:57,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 21:29:57,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322705539] [2023-05-03 21:29:57,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 21:29:57,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 21:29:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 21:29:57,387 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 34 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2023-05-03 21:29:57,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 21:29:57,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322705539] [2023-05-03 21:29:57,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322705539] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 21:29:57,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805185748] [2023-05-03 21:29:57,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-03 21:29:57,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:29:57,388 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 21:29:57,389 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-05-03 21:29:57,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-05-03 21:29:57,414 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-05-03 21:29:57,414 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 21:29:57,415 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 49 conjunts are in the unsatisfiable core [2023-05-03 21:29:57,418 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 21:29:57,813 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:57,813 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 21:29:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 21:29:58,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805185748] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 21:29:58,287 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 21:29:58,288 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 18, 14] total 36 [2023-05-03 21:29:58,288 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934876351] [2023-05-03 21:29:58,288 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 21:29:58,288 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2023-05-03 21:29:58,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 21:29:58,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2023-05-03 21:29:58,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2023-05-03 21:29:58,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:29:58,289 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 21:29:58,289 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.3513513513513513) internal successors, (87), 36 states have internal predecessors, (87), 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) [2023-05-03 21:29:58,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:29:58,289 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:29:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2023-05-03 21:29:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 46 states. [2023-05-03 21:29:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 64 states. [2023-05-03 21:29:58,290 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 21:30:01,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-05-03 21:30:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-05-03 21:30:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2023-05-03 21:30:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2023-05-03 21:30:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2023-05-03 21:30:01,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2023-05-03 21:30:01,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2023-05-03 21:30:01,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-05-03 21:30:01,953 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-05-03 21:30:01,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-05-03 21:30:02,165 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 21:30:02,169 INFO L444 BasicCegarLoop]: Path program histogram: [6] [2023-05-03 21:30:02,171 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-03 21:30:02,171 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-03 21:30:02,173 INFO L202 PluginConnector]: Adding new model nonblocking-cntr-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 09:30:02 BasicIcfg [2023-05-03 21:30:02,173 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-03 21:30:02,173 INFO L158 Benchmark]: Toolchain (without parser) took 17138.48ms. Allocated memory was 203.4MB in the beginning and 293.6MB in the end (delta: 90.2MB). Free memory was 155.8MB in the beginning and 211.4MB in the end (delta: -55.6MB). Peak memory consumption was 35.7MB. Max. memory is 8.0GB. [2023-05-03 21:30:02,173 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 203.4MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-03 21:30:02,174 INFO L158 Benchmark]: Boogie Procedure Inliner took 19.31ms. Allocated memory is still 203.4MB. Free memory was 155.7MB in the beginning and 154.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 21:30:02,174 INFO L158 Benchmark]: Boogie Preprocessor took 13.27ms. Allocated memory is still 203.4MB. Free memory was 154.2MB in the beginning and 153.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 21:30:02,174 INFO L158 Benchmark]: RCFGBuilder took 239.80ms. Allocated memory is still 203.4MB. Free memory was 153.1MB in the beginning and 171.8MB in the end (delta: -18.6MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. [2023-05-03 21:30:02,175 INFO L158 Benchmark]: TraceAbstraction took 16861.30ms. Allocated memory was 203.4MB in the beginning and 293.6MB in the end (delta: 90.2MB). Free memory was 170.6MB in the beginning and 211.4MB in the end (delta: -40.8MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. [2023-05-03 21:30:02,176 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 0.12ms. Allocated memory is still 203.4MB. Free memory is still 156.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 19.31ms. Allocated memory is still 203.4MB. Free memory was 155.7MB in the beginning and 154.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.27ms. Allocated memory is still 203.4MB. Free memory was 154.2MB in the beginning and 153.2MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 239.80ms. Allocated memory is still 203.4MB. Free memory was 153.1MB in the beginning and 171.8MB in the end (delta: -18.6MB). Peak memory consumption was 11.6MB. Max. memory is 8.0GB. * TraceAbstraction took 16861.30ms. Allocated memory was 203.4MB in the beginning and 293.6MB in the end (delta: 90.2MB). Free memory was 170.6MB in the beginning and 211.4MB in the end (delta: -40.8MB). Peak memory consumption was 49.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1012, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 372, dependent conditional: 370, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 651, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 651, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 176, independent: 137, independent conditional: 23, independent unconditional: 114, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 176, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 24, independent conditional: 23, independent unconditional: 1, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 24, independent conditional: 23, independent unconditional: 1, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, independent: 83, independent conditional: 52, independent unconditional: 31, dependent: 137, dependent conditional: 100, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 759, independent: 503, independent conditional: 13, independent unconditional: 490, dependent: 80, dependent conditional: 35, dependent unconditional: 45, unknown: 176, unknown conditional: 60, unknown unconditional: 116] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 137, Positive conditional cache size: 23, Positive unconditional cache size: 114, Negative cache size: 39, Negative conditional cache size: 37, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 6, Independence queries for same thread: 361 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.1s, Number of persistent set computation: 43, Number of trivial persistent sets: 29, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 131, independent: 129, independent conditional: 0, independent unconditional: 129, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1012, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 372, dependent conditional: 370, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 651, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 651, independent: 640, independent conditional: 511, independent unconditional: 129, dependent: 11, dependent conditional: 9, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 759, independent: 640, independent conditional: 36, independent unconditional: 604, dependent: 119, dependent conditional: 72, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 176, independent: 137, independent conditional: 23, independent unconditional: 114, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 176, independent: 113, independent conditional: 0, independent unconditional: 113, dependent: 63, dependent conditional: 0, dependent unconditional: 63, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 63, independent: 24, independent conditional: 23, independent unconditional: 1, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 63, independent: 24, independent conditional: 23, independent unconditional: 1, dependent: 39, dependent conditional: 37, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 219, independent: 83, independent conditional: 52, independent unconditional: 31, dependent: 137, dependent conditional: 100, dependent unconditional: 37, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 759, independent: 503, independent conditional: 13, independent unconditional: 490, dependent: 80, dependent conditional: 35, dependent unconditional: 45, unknown: 176, unknown conditional: 60, unknown unconditional: 116] , Statistics on independence cache: Total cache size (in pairs): 176, Positive cache size: 137, Positive conditional cache size: 23, Positive unconditional cache size: 114, Negative cache size: 39, Negative conditional cache size: 37, Negative unconditional cache size: 2, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: 6, Independence queries for same thread: 361 - PositiveResult [Line: 50]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 16.7s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 9.1s, 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: 290, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 5.9s InterpolantComputationTime, 320 NumberOfCodeBlocks, 320 NumberOfCodeBlocksAsserted, 25 NumberOfCheckSat, 462 ConstructedInterpolants, 0 QuantifiedInterpolants, 6732 SizeOfPredicates, 47 NumberOfNonLiveVariables, 343 ConjunctsInSsa, 179 ConjunctsInUnsatCore, 18 InterpolantComputations, 0 PerfectInterpolantSequences, 47/399 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-05-03 21:30:02,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2023-05-03 21:30:02,411 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...