/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:55:20,021 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:55:20,040 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:55:20,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-04 11:55:20,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-04 11:55:20,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-04 11:55:20,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-04 11:55:20,097 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-04 11:55:20,098 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-04 11:55:20,099 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-04 11:55:20,100 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-04 11:55:20,101 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-04 11:55:20,101 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:55:20,102 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:55:20,102 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:55:20,103 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:55:20,104 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:55:20,105 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:55:20,106 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:55:20,111 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:55:20,118 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:55:20,123 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:55:20,124 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:55:20,125 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:55:20,127 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:55:20,133 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:55:20,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:55:20,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:55:20,138 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:55:20,177 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:55:20,177 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:55:20,177 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:55:20,177 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:55:20,178 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:55:20,178 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:55:20,179 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:55:20,179 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:55:20,179 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:55:20,179 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:55:20,180 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:55:20,180 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:55:20,180 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:55:20,180 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:55:20,180 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:55:20,181 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:55:20,181 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:55:20,182 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:55:20,182 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:55:20,183 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:55:20,183 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:55:20,183 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:55:20,183 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:55:20,183 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:55:20,401 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:55:20,427 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:55:20,429 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:55:20,430 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:55:20,431 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:55:20,432 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl [2022-03-04 11:55:20,432 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/max-array.wvr.bpl' [2022-03-04 11:55:20,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:55:20,451 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:55:20,451 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:55:20,452 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:55:20,452 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:55:20,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,466 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,471 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:55:20,472 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:55:20,473 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:55:20,473 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:55:20,473 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:55:20,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,481 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,483 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,486 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:55:20,489 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:55:20,489 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:55:20,490 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:55:20,491 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/1) ... [2022-03-04 11:55:20,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:55:20,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:55:20,516 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 11:55:20,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 11:55:20,555 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:55:20,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:55:20,555 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:55:20,555 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:55:20,555 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:55:20,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:55:20,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:55:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:55:20,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:55:20,556 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:55:20,556 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:55:20,556 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:55:20,557 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:55:20,594 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:55:20,595 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:55:20,719 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:55:20,739 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:55:20,740 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:55:20,742 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:55:20 BoogieIcfgContainer [2022-03-04 11:55:20,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:55:20,744 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:55:20,744 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:55:20,766 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:55:20,767 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:55:20" (1/2) ... [2022-03-04 11:55:20,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34d7955f and model type max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:55:20, skipping insertion in model container [2022-03-04 11:55:20,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:55:20" (2/2) ... [2022-03-04 11:55:20,771 INFO L111 eAbstractionObserver]: Analyzing ICFG max-array.wvr.bpl [2022-03-04 11:55:20,775 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:55:20,775 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:55:20,775 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:55:20,775 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:55:20,804 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 11:55:20,840 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:55:20,840 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:55:20,842 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 11:55:20,843 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 11:55:20,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:55:20,872 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 11:55:20,872 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 11:55:21,194 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 355 transitions and produced 322 states. [2022-03-04 11:55:21,196 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:55:21,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:55:21,205 INFO L85 PathProgramCache]: Analyzing trace with hash 525541412, now seen corresponding path program 1 times [2022-03-04 11:55:21,212 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:55:21,214 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [278738923] [2022-03-04 11:55:21,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:55:21,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:55:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:55:22,308 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 477 proven. 576 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:55:22,309 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:55:22,309 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [278738923] [2022-03-04 11:55:22,310 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [278738923] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:55:22,310 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156283106] [2022-03-04 11:55:22,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:55:22,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:55:22,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:55:22,312 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:55:22,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:55:22,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:55:22,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 251 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-04 11:55:22,411 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:55:23,523 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 516 proven. 537 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-03-04 11:55:23,524 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:55:25,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1065 backedges. 633 proven. 428 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 11:55:25,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156283106] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:55:25,010 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:55:25,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 42] total 92 [2022-03-04 11:55:25,013 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354550742] [2022-03-04 11:55:25,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:55:25,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2022-03-04 11:55:25,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:55:25,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2022-03-04 11:55:25,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2240, Invalid=6132, Unknown=0, NotChecked=0, Total=8372 [2022-03-04 11:55:25,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:55:25,044 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:55:25,048 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.4347826086956523) internal successors, (224), 92 states have internal predecessors, (224), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:55:25,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:55:29,049 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 634 transitions and produced 606 states. [2022-03-04 11:55:29,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:55:29,068 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:55:29,255 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 11:55:29,256 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:55:29,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:55:29,256 INFO L85 PathProgramCache]: Analyzing trace with hash 749511372, now seen corresponding path program 2 times [2022-03-04 11:55:29,256 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:55:29,257 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138821817] [2022-03-04 11:55:29,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:55:29,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:55:29,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:55:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 1169 proven. 1736 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:55:31,232 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:55:31,232 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138821817] [2022-03-04 11:55:31,232 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138821817] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:55:31,233 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1376025676] [2022-03-04 11:55:31,233 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:55:31,233 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:55:31,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:55:31,236 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:55:31,237 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:55:31,361 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:55:31,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:55:31,365 INFO L263 TraceCheckSpWp]: Trace formula consists of 441 conjuncts, 83 conjunts are in the unsatisfiable core [2022-03-04 11:55:31,384 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:55:33,575 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 1236 proven. 1669 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:55:33,576 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:55:36,530 INFO L134 CoverageAnalysis]: Checked inductivity of 2913 backedges. 1073 proven. 1840 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:55:36,530 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1376025676] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:55:36,531 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:55:36,531 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76, 84] total 164 [2022-03-04 11:55:36,531 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741677873] [2022-03-04 11:55:36,531 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:55:36,533 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 164 states [2022-03-04 11:55:36,533 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:55:36,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 164 interpolants. [2022-03-04 11:55:36,542 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5285, Invalid=21447, Unknown=0, NotChecked=0, Total=26732 [2022-03-04 11:55:36,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:55:36,543 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:55:36,543 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 164 states, 164 states have (on average 2.2439024390243905) internal successors, (368), 164 states have internal predecessors, (368), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:55:36,543 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:55:36,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:55:43,837 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 835 transitions and produced 797 states. [2022-03-04 11:55:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:55:43,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:55:43,865 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:55:44,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:55:44,048 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:55:44,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:55:44,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1383431700, now seen corresponding path program 3 times [2022-03-04 11:55:44,048 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:55:44,049 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021253526] [2022-03-04 11:55:44,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:55:44,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:55:44,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:55:46,732 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 2289 proven. 2683 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:55:46,733 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:55:46,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021253526] [2022-03-04 11:55:46,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021253526] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:55:46,733 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1591481984] [2022-03-04 11:55:46,733 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:55:46,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:55:46,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:55:46,735 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:55:46,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:55:48,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 59 check-sat command(s) [2022-03-04 11:55:48,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:55:48,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 106 conjunts are in the unsatisfiable core [2022-03-04 11:55:48,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:55:51,742 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 2384 proven. 2588 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:55:51,742 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:55:56,518 INFO L134 CoverageAnalysis]: Checked inductivity of 4980 backedges. 2025 proven. 2955 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:55:56,518 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1591481984] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:55:56,519 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:55:56,519 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [99, 99, 107] total 222 [2022-03-04 11:55:56,519 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [184998071] [2022-03-04 11:55:56,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:55:56,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 222 states [2022-03-04 11:55:56,521 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:55:56,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 222 interpolants. [2022-03-04 11:55:56,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10115, Invalid=38947, Unknown=0, NotChecked=0, Total=49062 [2022-03-04 11:55:56,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:55:56,529 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:55:56,530 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 222 states, 222 states have (on average 2.1576576576576576) internal successors, (479), 222 states have internal predecessors, (479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:55:56,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:55:56,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:55:56,530 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:56:08,162 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1097 transitions and produced 1044 states. [2022-03-04 11:56:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:56:08,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:56:08,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:56:08,181 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 11:56:08,363 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:56:08,364 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:56:08,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:56:08,364 INFO L85 PathProgramCache]: Analyzing trace with hash 497484406, now seen corresponding path program 4 times [2022-03-04 11:56:08,364 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:56:08,364 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740160071] [2022-03-04 11:56:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:56:08,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:56:08,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:56:13,249 INFO L134 CoverageAnalysis]: Checked inductivity of 9044 backedges. 3801 proven. 5235 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:56:13,249 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:56:13,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740160071] [2022-03-04 11:56:13,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740160071] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:56:13,250 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915893300] [2022-03-04 11:56:13,250 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:56:13,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:56:13,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:56:13,251 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:56:13,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:56:13,389 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:56:13,390 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:56:13,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 736 conjuncts, 142 conjunts are in the unsatisfiable core [2022-03-04 11:56:13,400 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:56:19,105 INFO L134 CoverageAnalysis]: Checked inductivity of 9044 backedges. 3924 proven. 5112 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:56:19,105 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:56:25,346 INFO L134 CoverageAnalysis]: Checked inductivity of 9044 backedges. 3369 proven. 5675 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:56:25,347 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915893300] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:56:25,347 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:56:25,347 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [135, 135, 143] total 273 [2022-03-04 11:56:25,347 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759030882] [2022-03-04 11:56:25,347 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:56:25,348 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 273 states [2022-03-04 11:56:25,348 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:56:25,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 273 interpolants. [2022-03-04 11:56:25,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14568, Invalid=59688, Unknown=0, NotChecked=0, Total=74256 [2022-03-04 11:56:25,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:56:25,358 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:56:25,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 273 states, 273 states have (on average 2.1465201465201464) internal successors, (586), 273 states have internal predecessors, (586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:56:25,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:56:25,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:56:25,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:56:25,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:56:44,513 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1283 transitions and produced 1223 states. [2022-03-04 11:56:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:56:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:56:44,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:56:44,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:56:44,531 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 11:56:44,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:56:44,714 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:56:44,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:56:44,715 INFO L85 PathProgramCache]: Analyzing trace with hash -583703900, now seen corresponding path program 5 times [2022-03-04 11:56:44,715 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:56:44,715 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1581174456] [2022-03-04 11:56:44,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:56:44,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:56:44,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:56:51,028 INFO L134 CoverageAnalysis]: Checked inductivity of 12036 backedges. 5705 proven. 6323 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:56:51,028 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:56:51,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1581174456] [2022-03-04 11:56:51,028 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1581174456] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:56:51,028 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [114591266] [2022-03-04 11:56:51,029 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:56:51,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:56:51,030 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:56:51,033 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) [2022-03-04 11:56:51,033 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 11:56:51,452 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 87 check-sat command(s) [2022-03-04 11:56:51,453 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:56:51,464 INFO L263 TraceCheckSpWp]: Trace formula consists of 836 conjuncts, 162 conjunts are in the unsatisfiable core [2022-03-04 11:56:51,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:56:59,343 INFO L134 CoverageAnalysis]: Checked inductivity of 12036 backedges. 5856 proven. 6172 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:56:59,344 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:57:08,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12036 backedges. 5105 proven. 6931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:57:08,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [114591266] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:57:08,948 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:57:08,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [155, 155, 163] total 334 [2022-03-04 11:57:08,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451104876] [2022-03-04 11:57:08,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:57:08,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 334 states [2022-03-04 11:57:08,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:57:08,952 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 334 interpolants. [2022-03-04 11:57:08,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23093, Invalid=88129, Unknown=0, NotChecked=0, Total=111222 [2022-03-04 11:57:08,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:57:08,959 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:57:08,960 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 334 states, 334 states have (on average 2.104790419161677) internal successors, (703), 334 states have internal predecessors, (703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:57:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:57:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:57:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:57:08,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:57:08,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:57:34,517 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1545 transitions and produced 1470 states. [2022-03-04 11:57:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:57:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:57:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:57:34,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:57:34,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2022-03-04 11:57:34,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 11:57:34,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:57:34,720 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:57:34,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:57:34,720 INFO L85 PathProgramCache]: Analyzing trace with hash 1389876998, now seen corresponding path program 6 times [2022-03-04 11:57:34,720 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:57:34,720 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242911670] [2022-03-04 11:57:34,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:57:34,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:57:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:57:44,218 INFO L134 CoverageAnalysis]: Checked inductivity of 18116 backedges. 8001 proven. 10107 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:57:44,219 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:57:44,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242911670] [2022-03-04 11:57:44,219 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1242911670] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:57:44,219 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [81211083] [2022-03-04 11:57:44,219 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 11:57:44,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:57:44,219 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:57:44,221 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) [2022-03-04 11:57:44,261 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 11:57:45,599 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 101 check-sat command(s) [2022-03-04 11:57:45,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:57:45,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 1016 conjuncts, 198 conjunts are in the unsatisfiable core [2022-03-04 11:57:45,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:57:56,874 INFO L134 CoverageAnalysis]: Checked inductivity of 18116 backedges. 8180 proven. 9928 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:57:56,875 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:58:08,843 INFO L134 CoverageAnalysis]: Checked inductivity of 18116 backedges. 7233 proven. 10883 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:58:08,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [81211083] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:58:08,843 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:58:08,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [191, 191, 199] total 385 [2022-03-04 11:58:08,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436660604] [2022-03-04 11:58:08,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:58:08,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 385 states [2022-03-04 11:58:08,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:58:08,849 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 385 interpolants. [2022-03-04 11:58:08,856 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29702, Invalid=118138, Unknown=0, NotChecked=0, Total=147840 [2022-03-04 11:58:08,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:58:08,857 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:58:08,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 385 states, 385 states have (on average 2.103896103896104) internal successors, (810), 385 states have internal predecessors, (810), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:58:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:58:08,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:58:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:58:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:58:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2022-03-04 11:58:08,858 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:58:46,305 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1731 transitions and produced 1649 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2022-03-04 11:58:46,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-03-04 11:58:46,325 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-04 11:58:46,506 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:58:46,506 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 11:58:46,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:58:46,507 INFO L85 PathProgramCache]: Analyzing trace with hash 882730804, now seen corresponding path program 7 times [2022-03-04 11:58:46,507 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:58:46,507 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160261940] [2022-03-04 11:58:46,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:58:46,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:58:46,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:58:58,000 INFO L134 CoverageAnalysis]: Checked inductivity of 22228 backedges. 10689 proven. 11531 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:58:58,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:58:58,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160261940] [2022-03-04 11:58:58,002 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160261940] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:58:58,002 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519932750] [2022-03-04 11:58:58,002 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 11:58:58,002 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:58:58,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:58:58,005 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:58:58,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 11:58:58,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:58:58,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 1116 conjuncts, 218 conjunts are in the unsatisfiable core [2022-03-04 11:58:58,188 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:59:12,605 INFO L134 CoverageAnalysis]: Checked inductivity of 22228 backedges. 10896 proven. 11324 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 11:59:12,605 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:59:28,921 INFO L134 CoverageAnalysis]: Checked inductivity of 22228 backedges. 9753 proven. 12475 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 11:59:28,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [519932750] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:59:28,921 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:59:28,922 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [211, 211, 219] total 446 [2022-03-04 11:59:28,922 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1749669147] [2022-03-04 11:59:28,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:59:28,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 446 states [2022-03-04 11:59:28,923 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:59:28,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 446 interpolants. [2022-03-04 11:59:28,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41559, Invalid=156911, Unknown=0, NotChecked=0, Total=198470 [2022-03-04 11:59:28,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:59:28,946 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:59:28,947 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 446 states, 446 states have (on average 2.07847533632287) internal successors, (927), 446 states have internal predecessors, (927), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 340 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 480 states. [2022-03-04 11:59:28,947 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:00:19,873 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1993 transitions and produced 1896 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2022-03-04 12:00:19,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-03-04 12:00:19,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2022-03-04 12:00:19,893 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-04 12:00:20,074 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-04 12:00:20,075 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:00:20,075 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:00:20,075 INFO L85 PathProgramCache]: Analyzing trace with hash -2070885482, now seen corresponding path program 8 times [2022-03-04 12:00:20,075 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:00:20,075 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852503232] [2022-03-04 12:00:20,075 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:00:20,075 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:00:20,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:00:36,114 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 13769 proven. 16547 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:00:36,115 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:00:36,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852503232] [2022-03-04 12:00:36,115 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852503232] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:00:36,115 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [558116261] [2022-03-04 12:00:36,115 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 12:00:36,115 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:00:36,115 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:00:36,116 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:00:36,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 12:00:36,324 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 12:00:36,324 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:00:36,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1296 conjuncts, 254 conjunts are in the unsatisfiable core [2022-03-04 12:00:36,347 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:00:55,388 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 14004 proven. 16312 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:00:55,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:01:14,528 INFO L134 CoverageAnalysis]: Checked inductivity of 30324 backedges. 12665 proven. 17659 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:01:14,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [558116261] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:01:14,529 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:01:14,529 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [247, 247, 255] total 497 [2022-03-04 12:01:14,530 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215897074] [2022-03-04 12:01:14,530 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:01:14,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 497 states [2022-03-04 12:01:14,531 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:01:14,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 497 interpolants. [2022-03-04 12:01:14,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50324, Invalid=196188, Unknown=0, NotChecked=0, Total=246512 [2022-03-04 12:01:14,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:01:14,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:01:14,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 497 states, 497 states have (on average 2.080482897384306) internal successors, (1034), 497 states have internal predecessors, (1034), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:01:14,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:01:14,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 12:01:14,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 12:01:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 340 states. [2022-03-04 12:01:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2022-03-04 12:01:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 480 states. [2022-03-04 12:01:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 551 states. [2022-03-04 12:01:14,551 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:02:23,464 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2179 transitions and produced 2075 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2022-03-04 12:02:23,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 620 states. [2022-03-04 12:02:23,487 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 12:02:23,666 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:02:23,666 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:02:23,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:02:23,667 INFO L85 PathProgramCache]: Analyzing trace with hash 15567812, now seen corresponding path program 9 times [2022-03-04 12:02:23,667 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:02:23,667 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1266817801] [2022-03-04 12:02:23,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:02:23,667 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:02:24,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:02:42,698 INFO L134 CoverageAnalysis]: Checked inductivity of 35556 backedges. 17241 proven. 18307 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:02:42,698 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:02:42,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1266817801] [2022-03-04 12:02:42,698 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1266817801] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:02:42,698 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [990531445] [2022-03-04 12:02:42,698 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 12:02:42,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:02:42,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:02:42,702 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:02:42,702 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 12:03:31,601 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 143 check-sat command(s) [2022-03-04 12:03:31,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:03:31,658 INFO L263 TraceCheckSpWp]: Trace formula consists of 1396 conjuncts, 278 conjunts are in the unsatisfiable core [2022-03-04 12:03:31,668 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:03:54,738 INFO L134 CoverageAnalysis]: Checked inductivity of 35556 backedges. 17504 proven. 18044 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:03:54,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 12:04:19,730 INFO L134 CoverageAnalysis]: Checked inductivity of 35556 backedges. 15969 proven. 19587 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 12:04:19,731 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [990531445] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 12:04:19,731 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 12:04:19,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [267, 267, 275] total 558 [2022-03-04 12:04:19,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411058529] [2022-03-04 12:04:19,731 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 12:04:19,733 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 558 states [2022-03-04 12:04:19,733 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 12:04:19,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 558 interpolants. [2022-03-04 12:04:19,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65513, Invalid=245293, Unknown=0, NotChecked=0, Total=310806 [2022-03-04 12:04:19,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:04:19,760 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 12:04:19,761 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 558 states, 558 states have (on average 2.0627240143369177) internal successors, (1151), 558 states have internal predecessors, (1151), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 197 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 271 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 340 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 411 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 480 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 551 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 620 states. [2022-03-04 12:04:19,761 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 12:05:43,498 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2441 transitions and produced 2322 states. [2022-03-04 12:05:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 134 states. [2022-03-04 12:05:43,498 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 271 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 340 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 411 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 551 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 620 states. [2022-03-04 12:05:43,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 691 states. [2022-03-04 12:05:43,534 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2022-03-04 12:05:43,711 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-03-04 12:05:43,712 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 12:05:43,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 12:05:43,712 INFO L85 PathProgramCache]: Analyzing trace with hash 454156326, now seen corresponding path program 10 times [2022-03-04 12:05:43,712 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 12:05:43,712 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078961047] [2022-03-04 12:05:43,712 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 12:05:43,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 12:05:44,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 12:06:07,501 INFO L134 CoverageAnalysis]: Checked inductivity of 45668 backedges. 21105 proven. 24555 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:06:07,502 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 12:06:07,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078961047] [2022-03-04 12:06:07,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078961047] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 12:06:07,502 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1716327488] [2022-03-04 12:06:07,502 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 12:06:07,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 12:06:07,502 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 12:06:07,504 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 12:06:07,504 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 12:06:07,751 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 12:06:07,751 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 12:06:07,768 INFO L263 TraceCheckSpWp]: Trace formula consists of 1576 conjuncts, 310 conjunts are in the unsatisfiable core [2022-03-04 12:06:07,776 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 12:06:36,215 INFO L134 CoverageAnalysis]: Checked inductivity of 45668 backedges. 21396 proven. 24264 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-03-04 12:06:36,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-03-04 12:06:53,415 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 12:06:53,435 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-03-04 12:06:53,450 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:06:53,450 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:06:53,454 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 12:06:53,616 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-03-04 12:06:53,616 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 631 with TraceHistMax 156,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 544 known predicates. [2022-03-04 12:06:53,618 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 12:06:53,618 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 12:06:53,618 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 12:06:53,623 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 12:06:53,626 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 12:06:53,626 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 12:06:53,628 INFO L202 PluginConnector]: Adding new model max-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 12:06:53 BasicIcfg [2022-03-04 12:06:53,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 12:06:53,628 INFO L158 Benchmark]: Toolchain (without parser) took 693177.32ms. Allocated memory was 179.3MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 136.7MB in the beginning and 454.9MB in the end (delta: -318.2MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 12:06:53,628 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 179.3MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 12:06:53,629 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.95ms. Allocated memory is still 179.3MB. Free memory was 136.6MB in the beginning and 135.1MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 12:06:53,629 INFO L158 Benchmark]: Boogie Preprocessor took 13.22ms. Allocated memory is still 179.3MB. Free memory was 135.0MB in the beginning and 134.1MB in the end (delta: 928.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 12:06:53,629 INFO L158 Benchmark]: RCFGBuilder took 252.86ms. Allocated memory is still 179.3MB. Free memory was 134.1MB in the beginning and 124.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 12:06:53,629 INFO L158 Benchmark]: TraceAbstraction took 692884.00ms. Allocated memory was 179.3MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 124.3MB in the beginning and 454.9MB in the end (delta: -330.6MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 12:06:53,631 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 0.09ms. Allocated memory is still 179.3MB. Free memory is still 137.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.95ms. Allocated memory is still 179.3MB. Free memory was 136.6MB in the beginning and 135.1MB in the end (delta: 1.4MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.22ms. Allocated memory is still 179.3MB. Free memory was 135.0MB in the beginning and 134.1MB in the end (delta: 928.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 252.86ms. Allocated memory is still 179.3MB. Free memory was 134.1MB in the beginning and 124.7MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 692884.00ms. Allocated memory was 179.3MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 124.3MB in the beginning and 454.9MB in the end (delta: -330.6MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 65]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 631 with TraceHistMax 156,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 544 known predicates. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 631 with TraceHistMax 156,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 544 known predicates. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 631 with TraceHistMax 156,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 544 known predicates. - TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 631 with TraceHistMax 156,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 544 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 692.8s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 309.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3695, 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: 0.3s SsaConstructionTime, 54.6s SatisfiabilityAnalysisTime, 256.5s InterpolantComputationTime, 6108 NumberOfCodeBlocks, 6108 NumberOfCodeBlocksAsserted, 406 NumberOfCheckSat, 9135 ConstructedInterpolants, 0 QuantifiedInterpolants, 64228 SizeOfPredicates, 54 NumberOfNonLiveVariables, 7644 ConjunctsInSsa, 1486 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 185622/408786 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