/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-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-16 11:25:36,940 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-16 11:25:36,942 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-16 11:25:37,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-16 11:25:37,018 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-16 11:25:37,019 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-16 11:25:37,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-16 11:25:37,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-16 11:25:37,028 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-16 11:25:37,031 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-16 11:25:37,032 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-16 11:25:37,032 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-16 11:25:37,033 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-16 11:25:37,033 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-16 11:25:37,034 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-16 11:25:37,035 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-16 11:25:37,036 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-16 11:25:37,036 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-16 11:25:37,037 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-16 11:25:37,039 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-16 11:25:37,040 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-16 11:25:37,044 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-16 11:25:37,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-16 11:25:37,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-16 11:25:37,054 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-16 11:25:37,059 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-16 11:25:37,060 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-16 11:25:37,060 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-16 11:25:37,065 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-MCRwithDepranks-Lazy.epf [2022-02-16 11:25:37,085 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-16 11:25:37,085 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-16 11:25:37,085 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-16 11:25:37,085 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-16 11:25:37,086 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-16 11:25:37,086 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-16 11:25:37,087 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-16 11:25:37,087 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-16 11:25:37,087 INFO L138 SettingsManager]: * Use SBE=true [2022-02-16 11:25:37,093 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-16 11:25:37,094 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-16 11:25:37,095 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-16 11:25:37,095 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-16 11:25:37,095 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-16 11:25:37,095 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-16 11:25:37,095 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-16 11:25:37,095 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 11:25:37,096 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-16 11:25:37,096 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-16 11:25:37,097 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-16 11:25:37,097 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-16 11:25:37,097 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-16 11:25:37,097 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-16 11:25:37,097 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-16 11:25:37,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-16 11:25:37,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-16 11:25:37,314 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-16 11:25:37,315 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-16 11:25:37,317 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-16 11:25:37,318 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl [2022-02-16 11:25:37,319 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/mts-array.wvr.bpl' [2022-02-16 11:25:37,351 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-16 11:25:37,352 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-16 11:25:37,354 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-16 11:25:37,354 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-16 11:25:37,354 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-16 11:25:37,365 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,372 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,378 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-16 11:25:37,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-16 11:25:37,381 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-16 11:25:37,381 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-16 11:25:37,381 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-16 11:25:37,388 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,390 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,392 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,406 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-16 11:25:37,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-16 11:25:37,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-16 11:25:37,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-16 11:25:37,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/1) ... [2022-02-16 11:25:37,419 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-16 11:25:37,429 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 11:25:37,449 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) [2022-02-16 11:25:37,469 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 [2022-02-16 11:25:37,490 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-16 11:25:37,490 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-16 11:25:37,490 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-16 11:25:37,491 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-16 11:25:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-16 11:25:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-16 11:25:37,491 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-16 11:25:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-16 11:25:37,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-16 11:25:37,491 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-16 11:25:37,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-16 11:25:37,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-16 11:25:37,493 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-16 11:25:37,540 INFO L234 CfgBuilder]: Building ICFG [2022-02-16 11:25:37,541 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-16 11:25:37,644 INFO L275 CfgBuilder]: Performing block encoding [2022-02-16 11:25:37,658 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-16 11:25:37,659 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-16 11:25:37,661 INFO L202 PluginConnector]: Adding new model mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 11:25:37 BoogieIcfgContainer [2022-02-16 11:25:37,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-16 11:25:37,662 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-16 11:25:37,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-16 11:25:37,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-16 11:25:37,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.02 11:25:37" (1/2) ... [2022-02-16 11:25:37,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1da411bb and model type mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.02 11:25:37, skipping insertion in model container [2022-02-16 11:25:37,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mts-array.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.02 11:25:37" (2/2) ... [2022-02-16 11:25:37,682 INFO L111 eAbstractionObserver]: Analyzing ICFG mts-array.wvr.bpl [2022-02-16 11:25:37,687 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-16 11:25:37,687 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-16 11:25:37,687 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-16 11:25:37,687 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-16 11:25:37,721 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-16 11:25:37,759 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-16 11:25:37,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 11:25:37,761 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) [2022-02-16 11:25:37,763 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 [2022-02-16 11:25:37,819 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-16 11:25:37,826 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 [2022-02-16 11:25:37,826 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-16 11:25:38,020 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 413 transitions and produced 374 states. [2022-02-16 11:25:38,022 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 11:25:38,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 11:25:38,030 INFO L85 PathProgramCache]: Analyzing trace with hash 2091141093, now seen corresponding path program 1 times [2022-02-16 11:25:38,039 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 11:25:38,040 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [447826253] [2022-02-16 11:25:38,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 11:25:38,040 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 11:25:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 11:25:38,846 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 495 proven. 138 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-16 11:25:38,847 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 11:25:38,847 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [447826253] [2022-02-16 11:25:38,848 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [447826253] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 11:25:38,848 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [656733370] [2022-02-16 11:25:38,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 11:25:38,848 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 11:25:38,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 11:25:38,851 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) [2022-02-16 11:25:38,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-16 11:25:38,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 11:25:38,965 INFO L263 TraceCheckSpWp]: Trace formula consists of 248 conjuncts, 42 conjunts are in the unsatisfiable core [2022-02-16 11:25:38,973 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 11:25:40,059 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 133 proven. 512 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-02-16 11:25:40,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 11:25:41,257 INFO L134 CoverageAnalysis]: Checked inductivity of 666 backedges. 24 proven. 636 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 11:25:41,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [656733370] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 11:25:41,258 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 11:25:41,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 25, 37] total 75 [2022-02-16 11:25:41,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328765760] [2022-02-16 11:25:41,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 11:25:41,267 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2022-02-16 11:25:41,267 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 11:25:41,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2022-02-16 11:25:41,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1228, Invalid=4322, Unknown=0, NotChecked=0, Total=5550 [2022-02-16 11:25:41,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:41,291 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 11:25:41,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 2.8) internal successors, (210), 75 states have internal predecessors, (210), 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) [2022-02-16 11:25:41,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:45,141 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 437 transitions and produced 415 states. [2022-02-16 11:25:45,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 11:25:45,162 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-16 11:25:45,347 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 [2022-02-16 11:25:45,348 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 11:25:45,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 11:25:45,348 INFO L85 PathProgramCache]: Analyzing trace with hash -1103163369, now seen corresponding path program 2 times [2022-02-16 11:25:45,349 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 11:25:45,349 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641863969] [2022-02-16 11:25:45,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 11:25:45,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 11:25:45,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 11:25:46,126 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 410 proven. 243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 11:25:46,126 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 11:25:46,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641863969] [2022-02-16 11:25:46,127 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641863969] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 11:25:46,127 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1104099817] [2022-02-16 11:25:46,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-16 11:25:46,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 11:25:46,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 11:25:46,132 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) [2022-02-16 11:25:46,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-16 11:25:46,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-16 11:25:46,197 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 11:25:46,199 INFO L263 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-16 11:25:46,203 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 11:25:47,252 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 385 proven. 196 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-16 11:25:47,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 11:25:48,056 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 385 proven. 196 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2022-02-16 11:25:48,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1104099817] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 11:25:48,056 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 11:25:48,057 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 32, 32] total 88 [2022-02-16 11:25:48,057 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327586125] [2022-02-16 11:25:48,057 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 11:25:48,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 88 states [2022-02-16 11:25:48,058 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 11:25:48,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 88 interpolants. [2022-02-16 11:25:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1179, Invalid=6477, Unknown=0, NotChecked=0, Total=7656 [2022-02-16 11:25:48,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:48,062 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 11:25:48,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 88 states, 88 states have (on average 2.25) internal successors, (198), 88 states have internal predecessors, (198), 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) [2022-02-16 11:25:48,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-02-16 11:25:48,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:49,683 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 541 transitions and produced 513 states. [2022-02-16 11:25:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 11:25:49,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-16 11:25:49,701 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-16 11:25:49,891 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 [2022-02-16 11:25:49,892 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 11:25:49,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 11:25:49,892 INFO L85 PathProgramCache]: Analyzing trace with hash -1644798705, now seen corresponding path program 3 times [2022-02-16 11:25:49,892 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 11:25:49,893 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032120244] [2022-02-16 11:25:49,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 11:25:49,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 11:25:49,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-16 11:25:50,736 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 410 proven. 617 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-16 11:25:50,736 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-16 11:25:50,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032120244] [2022-02-16 11:25:50,736 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032120244] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-16 11:25:50,736 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [932415796] [2022-02-16 11:25:50,737 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-16 11:25:50,737 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-16 11:25:50,737 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-16 11:25:50,739 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) [2022-02-16 11:25:50,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-16 11:25:50,887 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 22 check-sat command(s) [2022-02-16 11:25:50,887 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-16 11:25:50,890 INFO L263 TraceCheckSpWp]: Trace formula consists of 303 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-16 11:25:50,894 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-16 11:25:53,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 410 proven. 623 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 11:25:53,058 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-16 11:25:55,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1033 backedges. 457 proven. 576 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-16 11:25:55,425 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [932415796] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-16 11:25:55,425 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-16 11:25:55,425 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 53, 53] total 149 [2022-02-16 11:25:55,426 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977726442] [2022-02-16 11:25:55,426 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-16 11:25:55,426 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-02-16 11:25:55,427 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-16 11:25:55,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-02-16 11:25:55,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3812, Invalid=18240, Unknown=0, NotChecked=0, Total=22052 [2022-02-16 11:25:55,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:55,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-16 11:25:55,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 2.161073825503356) internal successors, (322), 149 states have internal predecessors, (322), 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) [2022-02-16 11:25:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-02-16 11:25:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 65 states. [2022-02-16 11:25:55,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-16 11:25:57,762 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 613 transitions and produced 584 states. [2022-02-16 11:25:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-02-16 11:25:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2022-02-16 11:25:57,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2022-02-16 11:25:57,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-16 11:25:57,982 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 [2022-02-16 11:25:57,983 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-16 11:25:57,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-16 11:25:57,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1389758047, now seen corresponding path program 4 times [2022-02-16 11:25:57,984 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-16 11:25:57,984 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097783371] [2022-02-16 11:25:57,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-16 11:25:57,984 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-16 11:26:08,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat