/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/nonblocking-cntr.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:23:43,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:23:43,872 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:23:43,898 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:23:43,898 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:23:43,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:23:43,900 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:23:43,902 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:23:43,903 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:23:43,904 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:23:43,904 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:23:43,905 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:23:43,906 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:23:43,906 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:23:43,907 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:23:43,908 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:23:43,909 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:23:43,909 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:23:43,911 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:23:43,912 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:23:43,913 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:23:43,914 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:23:43,915 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:23:43,916 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:23:43,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:23:43,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:23:43,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:23:43,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:23:43,927 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 22:23:43,948 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:23:43,948 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:23:43,948 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:23:43,948 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:23:43,949 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:23:43,949 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:23:43,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:23:43,950 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:23:43,950 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:23:43,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:23:43,950 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:23:43,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:23:43,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:23:43,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:23:43,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:23:43,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:23:43,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:23:43,951 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:23:43,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:23:43,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:23:43,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:23:43,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:23:43,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:23:43,954 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:23:43,954 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:23:44,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:23:44,187 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:23:44,189 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:23:44,190 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:23:44,192 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:23:44,193 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr.wvr.bpl [2022-03-16 22:23:44,193 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/nonblocking-cntr.wvr.bpl' [2022-03-16 22:23:44,218 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:23:44,219 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:23:44,220 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:23:44,220 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:23:44,221 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:23:44,232 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,238 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,243 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:23:44,245 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:23:44,246 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:23:44,246 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:23:44,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:23:44,253 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,255 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,258 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,261 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,262 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:23:44,263 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:23:44,263 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:23:44,263 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:23:44,264 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/1) ... [2022-03-16 22:23:44,271 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:23:44,281 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:44,297 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 22:23:44,318 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 22:23:44,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:23:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:23:44,334 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:23:44,334 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:23:44,334 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:23:44,335 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:23:44,335 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:23:44,335 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:23:44,335 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:23:44,336 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 22:23:44,376 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:23:44,378 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:23:44,448 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:23:44,459 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:23:44,460 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:23:44,461 INFO L202 PluginConnector]: Adding new model nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:23:44 BoogieIcfgContainer [2022-03-16 22:23:44,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:23:44,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:23:44,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:23:44,469 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:23:44,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:23:44" (1/2) ... [2022-03-16 22:23:44,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bce0e1f and model type nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:23:44, skipping insertion in model container [2022-03-16 22:23:44,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:23:44" (2/2) ... [2022-03-16 22:23:44,472 INFO L111 eAbstractionObserver]: Analyzing ICFG nonblocking-cntr.wvr.bpl [2022-03-16 22:23:44,481 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:23:44,481 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:23:44,481 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:23:44,481 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:23:44,509 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 22:23:44,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:23:44,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:44,576 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 22:23:44,579 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 22:23:44,617 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:23:44,623 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 22:23:44,624 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 22:23:44,777 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 125 transitions and produced 113 states. [2022-03-16 22:23:44,780 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:23:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:44,785 INFO L85 PathProgramCache]: Analyzing trace with hash 472924029, now seen corresponding path program 1 times [2022-03-16 22:23:44,793 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:44,793 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182998124] [2022-03-16 22:23:44,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:44,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:44,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:45,448 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 121 proven. 55 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 22:23:45,448 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:45,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182998124] [2022-03-16 22:23:45,449 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182998124] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:45,449 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167753973] [2022-03-16 22:23:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:45,450 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:45,450 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:45,459 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 22:23:45,479 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 22:23:45,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:45,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 40 conjunts are in the unsatisfiable core [2022-03-16 22:23:45,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:46,698 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 34 proven. 146 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:46,698 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:23:47,806 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 30 proven. 150 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:47,807 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167753973] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:23:47,807 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:23:47,807 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 24, 23] total 63 [2022-03-16 22:23:47,809 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205807574] [2022-03-16 22:23:47,810 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:23:47,814 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-03-16 22:23:47,815 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:23:47,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-03-16 22:23:47,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=923, Invalid=3109, Unknown=0, NotChecked=0, Total=4032 [2022-03-16 22:23:47,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:47,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:23:47,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 2.1875) internal successors, (140), 63 states have internal predecessors, (140), 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 22:23:47,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:23:50,366 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 390 transitions and produced 316 states. [2022-03-16 22:23:50,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:23:50,398 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 22:23:50,568 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 22:23:50,569 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:23:50,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:23:50,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1467113627, now seen corresponding path program 2 times [2022-03-16 22:23:50,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:23:50,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307355202] [2022-03-16 22:23:50,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:23:50,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:23:50,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:23:52,183 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 1716 proven. 475 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-03-16 22:23:52,184 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:23:52,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1307355202] [2022-03-16 22:23:52,184 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1307355202] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:23:52,184 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1973393046] [2022-03-16 22:23:52,184 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:23:52,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:23:52,185 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:23:52,187 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 22:23:52,231 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 22:23:52,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:23:52,294 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:23:52,298 INFO L263 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 130 conjunts are in the unsatisfiable core [2022-03-16 22:23:52,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:23:56,279 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 274 proven. 1931 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:23:56,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:24:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 2205 backedges. 245 proven. 1960 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:00,542 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1973393046] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:24:00,542 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:24:00,542 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 69, 68] total 188 [2022-03-16 22:24:00,543 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1370129622] [2022-03-16 22:24:00,543 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:24:00,547 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 189 states [2022-03-16 22:24:00,547 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:24:00,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 189 interpolants. [2022-03-16 22:24:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7937, Invalid=27595, Unknown=0, NotChecked=0, Total=35532 [2022-03-16 22:24:00,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:00,560 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:24:00,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 189 states, 189 states have (on average 2.1164021164021163) internal successors, (400), 188 states have internal predecessors, (400), 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 22:24:00,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:24:00,561 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:24:14,447 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1160 transitions and produced 904 states. [2022-03-16 22:24:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:24:14,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-16 22:24:14,467 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 22:24:14,648 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 22:24:14,649 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:24:14,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:24:14,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1106563669, now seen corresponding path program 3 times [2022-03-16 22:24:14,650 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:24:14,650 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547565257] [2022-03-16 22:24:14,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:24:14,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:24:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:24:23,296 INFO L134 CoverageAnalysis]: Checked inductivity of 21145 backedges. 17601 proven. 3500 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2022-03-16 22:24:23,296 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:24:23,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547565257] [2022-03-16 22:24:23,297 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547565257] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:24:23,297 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055600774] [2022-03-16 22:24:23,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:24:23,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:24:23,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:24:23,299 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 22:24:23,299 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 22:24:24,357 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 115 check-sat command(s) [2022-03-16 22:24:24,357 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:24:24,378 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 390 conjunts are in the unsatisfiable core [2022-03-16 22:24:24,394 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:24:47,283 INFO L134 CoverageAnalysis]: Checked inductivity of 21145 backedges. 2194 proven. 18951 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:24:47,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:25:13,332 INFO L134 CoverageAnalysis]: Checked inductivity of 21145 backedges. 2090 proven. 19055 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:25:13,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055600774] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:25:13,333 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:25:13,333 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [154, 199, 199] total 549 [2022-03-16 22:25:13,333 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078111438] [2022-03-16 22:25:13,333 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:25:13,335 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 550 states [2022-03-16 22:25:13,335 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:25:13,348 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 550 interpolants. [2022-03-16 22:25:13,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67915, Invalid=234035, Unknown=0, NotChecked=0, Total=301950 [2022-03-16 22:25:13,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:25:13,370 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:25:13,372 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 550 states, 550 states have (on average 2.090909090909091) internal successors, (1150), 549 states have internal predecessors, (1150), 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 22:25:13,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:25:13,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-16 22:25:13,372 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:27:51,297 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3325 transitions and produced 2567 states. [2022-03-16 22:27:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:27:51,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 202 states. [2022-03-16 22:27:51,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 598 states. [2022-03-16 22:27:51,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:27:51,499 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 [2022-03-16 22:27:51,500 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 22:27:51,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:27:51,500 INFO L85 PathProgramCache]: Analyzing trace with hash 1065154277, now seen corresponding path program 4 times [2022-03-16 22:27:51,501 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:27:51,501 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268732606] [2022-03-16 22:27:51,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:27:51,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:27:55,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:28:56,349 INFO L134 CoverageAnalysis]: Checked inductivity of 176900 backedges. 148881 proven. 27895 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-03-16 22:28:56,349 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:28:56,349 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268732606] [2022-03-16 22:28:56,349 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268732606] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:28:56,350 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391569830] [2022-03-16 22:28:56,350 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:28:56,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:28:56,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:28:56,355 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) [2022-03-16 22:28:56,362 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:28:57,600 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:28:57,601 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:28:57,692 INFO L263 TraceCheckSpWp]: Trace formula consists of 2819 conjuncts, 1091 conjunts are in the unsatisfiable core [2022-03-16 22:28:57,719 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:31:44,215 INFO L134 CoverageAnalysis]: Checked inductivity of 176900 backedges. 18694 proven. 158206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:31:44,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:34:49,359 INFO L134 CoverageAnalysis]: Checked inductivity of 176900 backedges. 18380 proven. 158520 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 22:34:49,360 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1391569830] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:34:49,360 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:34:49,360 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [439, 564, 565] total 1565 [2022-03-16 22:34:49,361 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [465937308] [2022-03-16 22:34:49,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:34:49,364 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 1566 states [2022-03-16 22:34:49,364 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:34:49,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 1566 interpolants. [2022-03-16 22:34:49,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=547437, Invalid=1903353, Unknown=0, NotChecked=0, Total=2450790 [2022-03-16 22:34:49,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:34:49,628 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:34:49,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 1566 states, 1566 states have (on average 2.083652618135377) internal successors, (3263), 1565 states have internal predecessors, (3263), 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 22:34:49,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 22:34:49,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 202 states. [2022-03-16 22:34:49,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 598 states. [2022-03-16 22:34:49,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 22:35:23,471 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 22:35:23,483 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 22:35:23,483 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 [2022-03-16 22:35:23,483 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 [2022-03-16 22:35:23,646 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 [2022-03-16 22:35:23,647 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 1600 known predicates. [2022-03-16 22:35:23,649 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 22:35:23,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 22:35:23,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 22:35:23,656 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-03-16 22:35:23,658 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:35:23,658 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:35:23,660 INFO L202 PluginConnector]: Adding new model nonblocking-cntr.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:35:23 BasicIcfg [2022-03-16 22:35:23,660 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:35:23,661 INFO L158 Benchmark]: Toolchain (without parser) took 699441.71ms. Allocated memory was 185.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 144.8MB in the beginning and 475.7MB in the end (delta: -330.8MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-16 22:35:23,661 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 185.6MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:35:23,662 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.02ms. Allocated memory is still 185.6MB. Free memory was 144.7MB in the beginning and 143.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:35:23,662 INFO L158 Benchmark]: Boogie Preprocessor took 16.12ms. Allocated memory is still 185.6MB. Free memory was 143.2MB in the beginning and 142.2MB in the end (delta: 982.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:35:23,663 INFO L158 Benchmark]: RCFGBuilder took 198.33ms. Allocated memory is still 185.6MB. Free memory was 142.2MB in the beginning and 133.4MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-16 22:35:23,664 INFO L158 Benchmark]: TraceAbstraction took 699197.27ms. Allocated memory was 185.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 132.9MB in the beginning and 475.7MB in the end (delta: -342.8MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-03-16 22:35:23,666 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 0.14ms. Allocated memory is still 185.6MB. Free memory is still 145.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.02ms. Allocated memory is still 185.6MB. Free memory was 144.7MB in the beginning and 143.2MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 16.12ms. Allocated memory is still 185.6MB. Free memory was 143.2MB in the beginning and 142.2MB in the end (delta: 982.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 198.33ms. Allocated memory is still 185.6MB. Free memory was 142.2MB in the beginning and 133.4MB in the end (delta: 8.8MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 699197.27ms. Allocated memory was 185.6MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 132.9MB in the beginning and 475.7MB in the end (delta: -342.8MB). Peak memory consumption was 1.2GB. 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: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1600 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1600 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 1600 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 32 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 699.1s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 208.3s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 904, 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: 0.2s SsaConstructionTime, 7.2s SatisfiabilityAnalysisTime, 481.9s InterpolantComputationTime, 3448 NumberOfCodeBlocks, 3448 NumberOfCodeBlocksAsserted, 123 NumberOfCheckSat, 5160 ConstructedInterpolants, 0 QuantifiedInterpolants, 60052 SizeOfPredicates, 67 NumberOfNonLiveVariables, 4276 ConjunctsInSsa, 1651 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 210446/601290 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