/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 true -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.orders-218013a [2023-05-03 14:57:18,636 INFO L177 SettingsManager]: Resetting all preferences to default values... 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[2023-05-03 14:57:18,722 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleepPersistentFixedOrder.epf [2023-05-03 14:57:18,757 INFO L113 SettingsManager]: Loading preferences was successful [2023-05-03 14:57:18,758 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-05-03 14:57:18,758 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-05-03 14:57:18,758 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-05-03 14:57:18,759 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-05-03 14:57:18,759 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-05-03 14:57:18,760 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-05-03 14:57:18,760 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-05-03 14:57:18,760 INFO L138 SettingsManager]: * Use SBE=true [2023-05-03 14:57:18,760 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-05-03 14:57:18,761 INFO L138 SettingsManager]: * sizeof long=4 [2023-05-03 14:57:18,761 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-05-03 14:57:18,761 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-05-03 14:57:18,761 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-05-03 14:57:18,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * sizeof long double=12 [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * Use constant arrays=true [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-05-03 14:57:18,762 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-05-03 14:57:18,762 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-05-03 14:57:18,763 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-05-03 14:57:18,764 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-05-03 14:57:18,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 14:57:18,764 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-05-03 14:57:18,764 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-05-03 14:57:18,764 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-05-03 14:57:18,764 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-05-03 14:57:18,765 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-05-03 14:57:18,765 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_THREAD_INSTANCE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Maximal amount of steps the threads are allowed to take successively -> 1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Enable heuristic with loops as step type -> true [2023-05-03 14:57:18,988 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-05-03 14:57:19,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-05-03 14:57:19,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-05-03 14:57:19,008 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2023-05-03 14:57:19,009 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2023-05-03 14:57:19,009 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl [2023-05-03 14:57:19,010 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/threaded-sum-3.wvr.bpl' [2023-05-03 14:57:19,030 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-05-03 14:57:19,031 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-05-03 14:57:19,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-05-03 14:57:19,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-05-03 14:57:19,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-05-03 14:57:19,045 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,061 INFO L138 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2023-05-03 14:57:19,062 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-05-03 14:57:19,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-05-03 14:57:19,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-05-03 14:57:19,063 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-05-03 14:57:19,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,069 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,070 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,072 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,074 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,075 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,076 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,077 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-05-03 14:57:19,077 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-05-03 14:57:19,077 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-05-03 14:57:19,078 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-05-03 14:57:19,079 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/1) ... [2023-05-03 14:57:19,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-05-03 14:57:19,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:57:19,102 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 14:57:19,128 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 14:57:19,146 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2023-05-03 14:57:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-05-03 14:57:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-05-03 14:57:19,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2023-05-03 14:57:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-05-03 14:57:19,147 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-05-03 14:57:19,147 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2023-05-03 14:57:19,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-05-03 14:57:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-05-03 14:57:19,148 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2023-05-03 14:57:19,148 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-05-03 14:57:19,148 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-05-03 14:57:19,149 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 14:57:19,184 INFO L235 CfgBuilder]: Building ICFG [2023-05-03 14:57:19,186 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2023-05-03 14:57:19,272 INFO L276 CfgBuilder]: Performing block encoding [2023-05-03 14:57:19,297 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-05-03 14:57:19,297 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2023-05-03 14:57:19,299 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 02:57:19 BoogieIcfgContainer [2023-05-03 14:57:19,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-05-03 14:57:19,301 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-05-03 14:57:19,301 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-05-03 14:57:19,323 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-05-03 14:57:19,323 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.05 02:57:19" (1/2) ... [2023-05-03 14:57:19,324 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c3b55fb and model type threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.05 02:57:19, skipping insertion in model container [2023-05-03 14:57:19,324 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.05 02:57:19" (2/2) ... [2023-05-03 14:57:19,325 INFO L112 eAbstractionObserver]: Analyzing ICFG threaded-sum-3.wvr.bpl [2023-05-03 14:57:19,331 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-05-03 14:57:19,352 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-05-03 14:57:19,352 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-05-03 14:57:19,352 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-05-03 14:57:19,420 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-05-03 14:57:19,456 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 14:57:19,456 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-05-03 14:57:19,457 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:57:19,459 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 14:57:19,476 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 14:57:19,502 INFO L162 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-05-03 14:57:19,562 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-05-03 14:57:19,572 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;@62012759, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-05-03 14:57:19,572 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-05-03 14:57:19,724 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:57:19,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:57:19,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1408500003, now seen corresponding path program 1 times [2023-05-03 14:57:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:57:19,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575876404] [2023-05-03 14:57:19,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:19,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:57:19,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:57:19,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-05-03 14:57:19,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 14:57:19,944 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575876404] [2023-05-03 14:57:19,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575876404] provided 1 perfect and 0 imperfect interpolant sequences [2023-05-03 14:57:19,945 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-05-03 14:57:19,945 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-05-03 14:57:19,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909453433] [2023-05-03 14:57:19,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 14:57:19,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-05-03 14:57:19,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 14:57:19,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-05-03 14:57:19,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-05-03 14:57:19,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:19,972 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 14:57:19,973 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.5) internal successors, (26), 4 states have internal predecessors, (26), 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 14:57:19,973 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:20,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:20,096 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-05-03 14:57:20,096 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:57:20,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:57:20,097 INFO L85 PathProgramCache]: Analyzing trace with hash 224767959, now seen corresponding path program 1 times [2023-05-03 14:57:20,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:57:20,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436180659] [2023-05-03 14:57:20,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:20,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:57:20,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:57:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-03 14:57:20,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 14:57:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436180659] [2023-05-03 14:57:20,331 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436180659] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 14:57:20,331 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [781655629] [2023-05-03 14:57:20,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:20,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:57:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:57:20,338 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 14:57:20,341 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 14:57:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:57:20,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 6 conjunts are in the unsatisfiable core [2023-05-03 14:57:20,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 14:57:20,568 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 16 proven. 10 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-05-03 14:57:20,568 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 14:57:20,707 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-05-03 14:57:20,709 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [781655629] provided 1 perfect and 1 imperfect interpolant sequences [2023-05-03 14:57:20,710 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-05-03 14:57:20,710 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5, 5] total 6 [2023-05-03 14:57:20,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746109085] [2023-05-03 14:57:20,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-05-03 14:57:20,712 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-05-03 14:57:20,712 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 14:57:20,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-05-03 14:57:20,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-05-03 14:57:20,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:20,715 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 14:57:20,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.0) internal successors, (30), 5 states have internal predecessors, (30), 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 14:57:20,715 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:20,716 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:20,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:57:20,837 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 14:57:21,028 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,SelfDestructingSolverStorable1 [2023-05-03 14:57:21,028 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:57:21,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:57:21,029 INFO L85 PathProgramCache]: Analyzing trace with hash 976321017, now seen corresponding path program 2 times [2023-05-03 14:57:21,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:57:21,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568652225] [2023-05-03 14:57:21,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:21,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:57:21,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:57:21,607 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 7 proven. 31 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2023-05-03 14:57:21,608 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 14:57:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568652225] [2023-05-03 14:57:21,608 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [568652225] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 14:57:21,608 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1359034814] [2023-05-03 14:57:21,608 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-05-03 14:57:21,609 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:57:21,609 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:57:21,613 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 14:57:21,622 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 14:57:21,658 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-05-03 14:57:21,659 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 14:57:21,660 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 16 conjunts are in the unsatisfiable core [2023-05-03 14:57:21,662 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 14:57:22,021 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-05-03 14:57:22,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 14:57:22,475 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 31 proven. 9 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-05-03 14:57:22,478 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1359034814] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 14:57:22,479 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 14:57:22,479 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12, 9] total 19 [2023-05-03 14:57:22,480 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479316661] [2023-05-03 14:57:22,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 14:57:22,484 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-05-03 14:57:22,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 14:57:22,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-05-03 14:57:22,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=255, Unknown=0, NotChecked=0, Total=342 [2023-05-03 14:57:22,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:22,488 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 14:57:22,488 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.789473684210526) internal successors, (72), 19 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 14:57:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:57:22,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:23,033 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:57:23,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-03 14:57:23,057 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-05-03 14:57:23,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:57:23,255 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:57:23,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:57:23,256 INFO L85 PathProgramCache]: Analyzing trace with hash 2100878212, now seen corresponding path program 3 times [2023-05-03 14:57:23,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:57:23,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596703173] [2023-05-03 14:57:23,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:23,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:57:23,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:57:25,755 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 7 proven. 164 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-05-03 14:57:25,755 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 14:57:25,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596703173] [2023-05-03 14:57:25,756 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1596703173] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 14:57:25,756 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [546799840] [2023-05-03 14:57:25,756 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-05-03 14:57:25,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:57:25,756 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:57:25,757 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 14:57:25,779 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 14:57:25,811 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 12 check-sat command(s) [2023-05-03 14:57:25,812 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 14:57:25,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 40 conjunts are in the unsatisfiable core [2023-05-03 14:57:25,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 14:57:40,510 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 14:57:40,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 14:57:45,044 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 0 proven. 174 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 14:57:45,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [546799840] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 14:57:45,045 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 14:57:45,045 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 31, 31] total 83 [2023-05-03 14:57:45,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304178703] [2023-05-03 14:57:45,045 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 14:57:45,046 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2023-05-03 14:57:45,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 14:57:45,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2023-05-03 14:57:45,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=956, Invalid=6016, Unknown=0, NotChecked=0, Total=6972 [2023-05-03 14:57:45,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:45,051 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 14:57:45,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 2.0238095238095237) internal successors, (170), 83 states have internal predecessors, (170), 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 14:57:45,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:45,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:57:45,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-03 14:57:45,052 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:57:56,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:57:56,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:57:56,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-03 14:57:56,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2023-05-03 14:57:56,317 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 14:57:56,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:57:56,505 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:57:56,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:57:56,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1190463764, now seen corresponding path program 4 times [2023-05-03 14:57:56,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:57:56,506 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [345355065] [2023-05-03 14:57:56,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:57:56,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:57:56,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 14:58:00,287 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 51 proven. 309 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-05-03 14:58:00,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 14:58:00,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [345355065] [2023-05-03 14:58:00,287 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [345355065] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 14:58:00,287 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104326865] [2023-05-03 14:58:00,287 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-05-03 14:58:00,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:58:00,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 14:58:00,310 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 14:58:00,310 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 14:58:00,354 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-05-03 14:58:00,354 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 14:58:00,356 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 57 conjunts are in the unsatisfiable core [2023-05-03 14:58:00,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 14:58:31,642 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 14:58:31,642 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 14:58:39,830 INFO L134 CoverageAnalysis]: Checked inductivity of 395 backedges. 0 proven. 395 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 14:58:39,831 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104326865] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 14:58:39,831 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 14:58:39,831 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 45, 46] total 113 [2023-05-03 14:58:39,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086757832] [2023-05-03 14:58:39,831 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 14:58:39,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 114 states [2023-05-03 14:58:39,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 14:58:39,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 114 interpolants. [2023-05-03 14:58:39,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1741, Invalid=11141, Unknown=0, NotChecked=0, Total=12882 [2023-05-03 14:58:39,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:58:39,837 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 14:58:39,838 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 114 states, 114 states have (on average 1.894736842105263) internal successors, (216), 113 states have internal predecessors, (216), 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 14:58:39,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:58:39,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:58:39,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-03 14:58:39,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2023-05-03 14:58:39,838 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 14:59:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 14:59:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 14:59:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-03 14:59:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 209 states. [2023-05-03 14:59:54,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2023-05-03 14:59:54,885 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 14:59:55,077 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 14:59:55,077 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 14:59:55,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 14:59:55,077 INFO L85 PathProgramCache]: Analyzing trace with hash 1954445519, now seen corresponding path program 5 times [2023-05-03 14:59:55,077 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 14:59:55,078 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060725430] [2023-05-03 14:59:55,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 14:59:55,078 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 14:59:55,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:00:14,248 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 96 proven. 680 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2023-05-03 15:00:14,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:00:14,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060725430] [2023-05-03 15:00:14,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060725430] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:00:14,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [493299421] [2023-05-03 15:00:14,249 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-05-03 15:00:14,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:00:14,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:00:14,253 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 15:00:14,253 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 15:00:14,339 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 19 check-sat command(s) [2023-05-03 15:00:14,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:00:14,341 WARN L261 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 82 conjunts are in the unsatisfiable core [2023-05-03 15:00:14,346 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:02:28,886 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:02:28,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:02:50,036 INFO L134 CoverageAnalysis]: Checked inductivity of 890 backedges. 0 proven. 890 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:02:50,036 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [493299421] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:02:50,036 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:02:50,037 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 64, 63] total 151 [2023-05-03 15:02:50,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981079213] [2023-05-03 15:02:50,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:02:50,038 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2023-05-03 15:02:50,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:02:50,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2023-05-03 15:02:50,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2750, Invalid=20202, Unknown=0, NotChecked=0, Total=22952 [2023-05-03 15:02:50,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:02:50,043 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:02:50,044 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 1.9671052631578947) internal successors, (299), 151 states have internal predecessors, (299), 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 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-03 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 209 states. [2023-05-03 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2023-05-03 15:02:50,044 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:04:01,813 WARN L233 SmtUtils]: Spent 6.75s on a formula simplification. DAG size of input: 718 DAG size of output: 683 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 15:04:15,375 WARN L233 SmtUtils]: Spent 5.01s on a formula simplification. DAG size of input: 780 DAG size of output: 461 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 15:04:23,362 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 738 DAG size of output: 703 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 15:04:30,696 WARN L233 SmtUtils]: Spent 6.91s on a formula simplification. DAG size of input: 736 DAG size of output: 694 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 15:04:38,106 WARN L233 SmtUtils]: Spent 6.88s on a formula simplification. DAG size of input: 730 DAG size of output: 695 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-05-03 15:05:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:05:18,054 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:05:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-05-03 15:05:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 237 states. [2023-05-03 15:05:18,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2023-05-03 15:05:18,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 195 states. [2023-05-03 15:05:18,073 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-05-03 15:05:18,258 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:05:18,259 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-05-03 15:05:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2023-05-03 15:05:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1117021999, now seen corresponding path program 6 times [2023-05-03 15:05:18,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-05-03 15:05:18,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1871076661] [2023-05-03 15:05:18,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-05-03 15:05:18,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-05-03 15:05:18,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-05-03 15:05:24,362 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 133 proven. 1275 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2023-05-03 15:05:24,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-05-03 15:05:24,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1871076661] [2023-05-03 15:05:24,363 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1871076661] provided 0 perfect and 1 imperfect interpolant sequences [2023-05-03 15:05:24,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1817074951] [2023-05-03 15:05:24,363 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-05-03 15:05:24,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:05:24,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-05-03 15:05:24,369 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 15:05:24,373 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 15:05:24,472 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 22 check-sat command(s) [2023-05-03 15:05:24,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-05-03 15:05:24,474 WARN L261 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 102 conjunts are in the unsatisfiable core [2023-05-03 15:05:24,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-05-03 15:08:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 1498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:08:51,117 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-05-03 15:09:03,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1498 backedges. 0 proven. 1498 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-05-03 15:09:03,450 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1817074951] provided 0 perfect and 2 imperfect interpolant sequences [2023-05-03 15:09:03,450 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-05-03 15:09:03,450 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 78, 78] total 191 [2023-05-03 15:09:03,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27523521] [2023-05-03 15:09:03,451 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-05-03 15:09:03,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2023-05-03 15:09:03,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-05-03 15:09:03,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2023-05-03 15:09:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4400, Invalid=32272, Unknown=0, NotChecked=0, Total=36672 [2023-05-03 15:09:03,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-05-03 15:09:03,457 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-05-03 15:09:03,457 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 1.9947916666666667) internal successors, (383), 191 states have internal predecessors, (383), 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 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 237 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 195 states. [2023-05-03 15:09:03,458 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2023-05-03 15:10:00,129 WARN L249 SmtUtils]: Removed 19 from assertion stack [2023-05-03 15:10:00,145 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-05-03 15:10:00,161 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 15:10:00,161 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 15:10:00,161 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-05-03 15:10:00,330 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-05-03 15:10:00,330 WARN L619 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 185 for 310ms.. [2023-05-03 15:10:00,333 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2023-05-03 15:10:00,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-05-03 15:10:00,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-05-03 15:10:00,334 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-05-03 15:10:00,339 INFO L444 BasicCegarLoop]: Path program histogram: [6, 1] [2023-05-03 15:10:00,341 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-05-03 15:10:00,341 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-05-03 15:10:00,343 INFO L202 PluginConnector]: Adding new model threaded-sum-3.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.05 03:10:00 BasicIcfg [2023-05-03 15:10:00,343 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-05-03 15:10:00,344 INFO L158 Benchmark]: Toolchain (without parser) took 761313.08ms. Allocated memory was 206.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 168.7MB in the beginning and 908.9MB in the end (delta: -740.2MB). Peak memory consumption was 701.7MB. Max. memory is 8.0GB. [2023-05-03 15:10:00,344 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 206.6MB. Free memory is still 169.9MB. There was no memory consumed. Max. memory is 8.0GB. [2023-05-03 15:10:00,344 INFO L158 Benchmark]: Boogie Procedure Inliner took 30.34ms. Allocated memory is still 206.6MB. Free memory was 168.7MB in the beginning and 167.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 15:10:00,345 INFO L158 Benchmark]: Boogie Preprocessor took 13.84ms. Allocated memory is still 206.6MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 968.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2023-05-03 15:10:00,345 INFO L158 Benchmark]: RCFGBuilder took 221.79ms. Allocated memory is still 206.6MB. Free memory was 166.0MB in the beginning and 155.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-05-03 15:10:00,345 INFO L158 Benchmark]: TraceAbstraction took 761042.21ms. Allocated memory was 206.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 154.1MB in the beginning and 908.9MB in the end (delta: -754.7MB). Peak memory consumption was 688.1MB. Max. memory is 8.0GB. [2023-05-03 15:10:00,346 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 0.11ms. Allocated memory is still 206.6MB. Free memory is still 169.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 30.34ms. Allocated memory is still 206.6MB. Free memory was 168.7MB in the beginning and 167.1MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.84ms. Allocated memory is still 206.6MB. Free memory was 167.1MB in the beginning and 166.1MB in the end (delta: 968.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 221.79ms. Allocated memory is still 206.6MB. Free memory was 166.0MB in the beginning and 155.2MB in the end (delta: 10.7MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 761042.21ms. Allocated memory was 206.6MB in the beginning and 1.1GB in the end (delta: 875.6MB). Free memory was 154.1MB in the beginning and 908.9MB in the end (delta: -754.7MB). Peak memory consumption was 688.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7998, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 1382, dependent conditional: 1368, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6730, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 114, dependent conditional: 100, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6730, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 114, dependent conditional: 100, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 914, dependent unconditional: 762, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 880, dependent unconditional: 796, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 880, dependent unconditional: 796, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 800, independent: 569, independent conditional: 189, independent unconditional: 380, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 800, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 432, dependent conditional: 0, dependent unconditional: 432, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 432, independent: 201, independent conditional: 189, independent unconditional: 12, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 432, independent: 201, independent conditional: 189, independent unconditional: 12, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1357, independent: 551, independent conditional: 510, independent unconditional: 40, dependent: 806, dependent conditional: 729, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8292, independent: 6047, independent conditional: 459, independent unconditional: 5588, dependent: 1445, dependent conditional: 663, dependent unconditional: 782, unknown: 800, unknown conditional: 406, unknown unconditional: 394] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 569, Positive conditional cache size: 189, Positive unconditional cache size: 380, Negative cache size: 231, Negative conditional cache size: 217, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 34, Maximal queried relation: 6, Independence queries for same thread: 1268 - StatisticsResult: Persistent set benchmarks Persistent set computation time: 0.2s, Number of persistent set computation: 130, Number of trivial persistent sets: 99, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 423, independent: 409, independent conditional: 0, independent unconditional: 409, dependent: 14, dependent conditional: 0, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 7998, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 1382, dependent conditional: 1368, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6730, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 114, dependent conditional: 100, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6730, independent: 6616, independent conditional: 6207, independent unconditional: 409, dependent: 114, dependent conditional: 100, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 914, dependent unconditional: 762, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 880, dependent unconditional: 796, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 8292, independent: 6616, independent conditional: 648, independent unconditional: 5968, dependent: 1676, dependent conditional: 880, dependent unconditional: 796, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 800, independent: 569, independent conditional: 189, independent unconditional: 380, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 800, independent: 368, independent conditional: 0, independent unconditional: 368, dependent: 432, dependent conditional: 0, dependent unconditional: 432, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 432, independent: 201, independent conditional: 189, independent unconditional: 12, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 432, independent: 201, independent conditional: 189, independent unconditional: 12, dependent: 231, dependent conditional: 217, dependent unconditional: 14, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1357, independent: 551, independent conditional: 510, independent unconditional: 40, dependent: 806, dependent conditional: 729, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 8292, independent: 6047, independent conditional: 459, independent unconditional: 5588, dependent: 1445, dependent conditional: 663, dependent unconditional: 782, unknown: 800, unknown conditional: 406, unknown unconditional: 394] , Statistics on independence cache: Total cache size (in pairs): 800, Positive cache size: 569, Positive conditional cache size: 189, Positive unconditional cache size: 380, Negative cache size: 231, Negative conditional cache size: 217, Negative unconditional cache size: 14, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 34, Maximal queried relation: 6, Independence queries for same thread: 1268 - TimeoutResultAtElement [Line: 78]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 185 for 310ms.. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 185 for 310ms.. - TimeoutResultAtElement [Line: 72]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 185 for 310ms.. - TimeoutResultAtElement [Line: 71]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 185 for 310ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 47 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 760.9s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 291.9s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 716, 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, 466.7s InterpolantComputationTime, 1008 NumberOfCodeBlocks, 1008 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 1479 ConstructedInterpolants, 0 QuantifiedInterpolants, 217774 SizeOfPredicates, 67 NumberOfNonLiveVariables, 700 ConjunctsInSsa, 303 ConjunctsInUnsatCore, 19 InterpolantComputations, 2 PerfectInterpolantSequences, 697/9137 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown