/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-proofs/counter-add-4-semi-Q67.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 23:14:23,448 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 23:14:23,450 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 23:14:23,523 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 23:14:23,523 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 23:14:23,527 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 23:14:23,529 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 23:14:23,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 23:14:23,536 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 23:14:23,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 23:14:23,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 23:14:23,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 23:14:23,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 23:14:23,547 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 23:14:23,547 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 23:14:23,548 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 23:14:23,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 23:14:23,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 23:14:23,550 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 23:14:23,552 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 23:14:23,553 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 23:14:23,556 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 23:14:23,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 23:14:23,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 23:14:23,566 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 23:14:23,575 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 23:14:23,575 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 23:14:23,576 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 23:14:23,577 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 [2022-03-16 23:14:23,615 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 23:14:23,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 23:14:23,616 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 23:14:23,616 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 23:14:23,616 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 23:14:23,617 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 23:14:23,617 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 23:14:23,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 23:14:23,617 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 23:14:23,617 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 23:14:23,618 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 23:14:23,618 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 23:14:23,618 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 23:14:23,619 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 23:14:23,620 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 23:14:23,620 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 23:14:23,620 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 23:14:23,620 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 23:14:23,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 23:14:23,621 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 23:14:23,621 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 23:14:23,621 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 23:14:23,621 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 23:14:23,622 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 23:14:23,622 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 23:14:23,818 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 23:14:23,842 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 23:14:23,844 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 23:14:23,845 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 23:14:23,846 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 23:14:23,846 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl [2022-03-16 23:14:23,847 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-proofs/counter-add-4-semi-Q67.wvr.bpl' [2022-03-16 23:14:23,866 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 23:14:23,868 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 23:14:23,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 23:14:23,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 23:14:23,869 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 23:14:23,880 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,887 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,892 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 23:14:23,894 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 23:14:23,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 23:14:23,895 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 23:14:23,895 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 23:14:23,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,901 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,902 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,903 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,908 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,912 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,913 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,917 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 23:14:23,918 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 23:14:23,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 23:14:23,918 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 23:14:23,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/1) ... [2022-03-16 23:14:23,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 23:14:23,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:23,944 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) [2022-03-16 23:14:23,955 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 [2022-03-16 23:14:23,973 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 23:14:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 23:14:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 23:14:23,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 23:14:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 23:14:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 23:14:23,974 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 23:14:23,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 23:14:23,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 23:14:23,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 23:14:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 23:14:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 23:14:23,975 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-16 23:14:23,975 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-16 23:14:23,975 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-16 23:14:23,976 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 23:14:24,028 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 23:14:24,029 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 23:14:24,162 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 23:14:24,191 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 23:14:24,191 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 23:14:24,194 INFO L202 PluginConnector]: Adding new model counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:14:24 BoogieIcfgContainer [2022-03-16 23:14:24,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 23:14:24,196 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 23:14:24,196 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 23:14:24,199 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 23:14:24,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 11:14:23" (1/2) ... [2022-03-16 23:14:24,200 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@364b7afa and model type counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 11:14:24, skipping insertion in model container [2022-03-16 23:14:24,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-add-4-semi-Q67.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 11:14:24" (2/2) ... [2022-03-16 23:14:24,201 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-add-4-semi-Q67.wvr.bpl [2022-03-16 23:14:24,210 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 23:14:24,210 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 23:14:24,210 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 23:14:24,211 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 23:14:24,279 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-16 23:14:24,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 23:14:24,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:24,337 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) [2022-03-16 23:14:24,338 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 [2022-03-16 23:14:24,360 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 23:14:24,366 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 [2022-03-16 23:14:24,367 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-16 23:14:24,818 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 713 transitions and produced 659 states. [2022-03-16 23:14:24,821 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 23:14:24,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:14:24,829 INFO L85 PathProgramCache]: Analyzing trace with hash -462093327, now seen corresponding path program 1 times [2022-03-16 23:14:24,841 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:14:24,842 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240000388] [2022-03-16 23:14:24,842 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:14:24,843 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:14:25,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:14:27,647 INFO L134 CoverageAnalysis]: Checked inductivity of 2836 backedges. 918 proven. 1902 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 23:14:27,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:14:27,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240000388] [2022-03-16 23:14:27,649 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240000388] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:14:27,649 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526086763] [2022-03-16 23:14:27,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:14:27,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:14:27,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:27,651 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) [2022-03-16 23:14:27,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 23:14:27,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:14:27,757 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-16 23:14:27,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:14:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2836 backedges. 1720 proven. 4 refuted. 0 times theorem prover too weak. 1112 trivial. 0 not checked. [2022-03-16 23:14:29,085 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:14:30,737 INFO L134 CoverageAnalysis]: Checked inductivity of 2836 backedges. 1388 proven. 344 refuted. 0 times theorem prover too weak. 1104 trivial. 0 not checked. [2022-03-16 23:14:30,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526086763] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:14:30,738 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:14:30,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 20, 28] total 104 [2022-03-16 23:14:30,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [430806306] [2022-03-16 23:14:30,740 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:14:30,746 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-03-16 23:14:30,746 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:14:30,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-03-16 23:14:30,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1317, Invalid=9603, Unknown=0, NotChecked=0, Total=10920 [2022-03-16 23:14:30,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:30,773 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:14:30,776 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 2.533333333333333) internal successors, (266), 104 states have internal predecessors, (266), 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) [2022-03-16 23:14:30,776 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:34,216 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 992 transitions and produced 921 states. [2022-03-16 23:14:34,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 23:14:34,234 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 23:14:34,417 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 [2022-03-16 23:14:34,418 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 23:14:34,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:14:34,418 INFO L85 PathProgramCache]: Analyzing trace with hash 2070615107, now seen corresponding path program 2 times [2022-03-16 23:14:34,419 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:14:34,419 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215710902] [2022-03-16 23:14:34,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:14:34,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:14:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:14:34,762 INFO L134 CoverageAnalysis]: Checked inductivity of 4042 backedges. 1872 proven. 289 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2022-03-16 23:14:34,763 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:14:34,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215710902] [2022-03-16 23:14:34,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215710902] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:14:34,763 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1526069777] [2022-03-16 23:14:34,763 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 23:14:34,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:14:34,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:34,768 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) [2022-03-16 23:14:34,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 23:14:34,890 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 23:14:34,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:14:34,893 INFO L263 TraceCheckSpWp]: Trace formula consists of 563 conjuncts, 36 conjunts are in the unsatisfiable core [2022-03-16 23:14:34,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:14:35,239 INFO L134 CoverageAnalysis]: Checked inductivity of 4042 backedges. 1872 proven. 289 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2022-03-16 23:14:35,239 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:14:35,618 INFO L134 CoverageAnalysis]: Checked inductivity of 4042 backedges. 1872 proven. 289 refuted. 0 times theorem prover too weak. 1881 trivial. 0 not checked. [2022-03-16 23:14:35,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1526069777] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:14:35,618 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:14:35,618 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 22 [2022-03-16 23:14:35,619 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776477464] [2022-03-16 23:14:35,619 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:14:35,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-03-16 23:14:35,620 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:14:35,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-03-16 23:14:35,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=213, Invalid=249, Unknown=0, NotChecked=0, Total=462 [2022-03-16 23:14:35,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:35,621 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:14:35,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 4.818181818181818) internal successors, (106), 22 states have internal predecessors, (106), 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) [2022-03-16 23:14:35,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 23:14:35,621 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:36,664 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2311 transitions and produced 2062 states. [2022-03-16 23:14:36,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 81 states. [2022-03-16 23:14:36,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 23:14:36,693 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 23:14:36,888 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 [2022-03-16 23:14:36,888 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-16 23:14:36,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 23:14:36,889 INFO L85 PathProgramCache]: Analyzing trace with hash 766156185, now seen corresponding path program 3 times [2022-03-16 23:14:36,889 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 23:14:36,889 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435236923] [2022-03-16 23:14:36,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 23:14:36,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 23:14:37,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 23:14:51,112 INFO L134 CoverageAnalysis]: Checked inductivity of 25072 backedges. 13282 proven. 11774 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-03-16 23:14:51,112 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 23:14:51,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435236923] [2022-03-16 23:14:51,113 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435236923] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 23:14:51,113 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288556289] [2022-03-16 23:14:51,113 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 23:14:51,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 23:14:51,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 23:14:51,116 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) [2022-03-16 23:14:51,117 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 23:14:51,295 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 51 check-sat command(s) [2022-03-16 23:14:51,296 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 23:14:51,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 614 conjuncts, 30 conjunts are in the unsatisfiable core [2022-03-16 23:14:51,308 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 23:14:54,946 INFO L134 CoverageAnalysis]: Checked inductivity of 25072 backedges. 1090 proven. 13904 refuted. 0 times theorem prover too weak. 10078 trivial. 0 not checked. [2022-03-16 23:14:54,946 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 23:14:58,713 INFO L134 CoverageAnalysis]: Checked inductivity of 25072 backedges. 5356 proven. 9638 refuted. 0 times theorem prover too weak. 10078 trivial. 0 not checked. [2022-03-16 23:14:58,714 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288556289] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 23:14:58,714 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 23:14:58,714 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [200, 30, 30] total 258 [2022-03-16 23:14:58,714 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [263972727] [2022-03-16 23:14:58,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 23:14:58,716 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 259 states [2022-03-16 23:14:58,716 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 23:14:58,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 259 interpolants. [2022-03-16 23:14:58,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9611, Invalid=57211, Unknown=0, NotChecked=0, Total=66822 [2022-03-16 23:14:58,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 23:14:58,735 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 23:14:58,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 259 states, 259 states have (on average 2.324324324324324) internal successors, (602), 258 states have internal predecessors, (602), 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) [2022-03-16 23:14:58,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 81 states. [2022-03-16 23:14:58,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 23:14:58,736 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.