/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 00:23:17,237 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 00:23:17,239 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 00:23:17,276 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 00:23:17,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 00:23:17,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 00:23:17,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 00:23:17,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 00:23:17,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 00:23:17,283 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 00:23:17,301 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 00:23:17,302 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 00:23:17,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 00:23:17,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 00:23:17,304 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 00:23:17,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 00:23:17,306 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 00:23:17,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 00:23:17,308 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 00:23:17,310 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 00:23:17,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 00:23:17,316 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 00:23:17,317 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 00:23:17,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 00:23:17,320 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-10 00:23:17,327 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 00:23:17,328 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 00:23:17,328 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 00:23:17,333 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-10 00:23:17,353 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 00:23:17,353 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 00:23:17,353 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 00:23:17,353 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 00:23:17,354 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 00:23:17,354 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 00:23:17,354 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 00:23:17,354 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 00:23:17,354 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 00:23:17,354 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 00:23:17,354 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 00:23:17,355 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 00:23:17,356 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 00:23:17,356 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 00:23:17,356 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 00:23:17,357 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-10 00:23:17,358 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 00:23:17,604 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 00:23:17,622 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 00:23:17,624 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 00:23:17,625 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 00:23:17,627 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 00:23:17,629 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl [2022-02-10 00:23:17,629 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/buffer-mult-alt.wvr.bpl' [2022-02-10 00:23:17,651 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 00:23:17,653 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 00:23:17,653 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 00:23:17,654 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 00:23:17,654 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 00:23:17,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,680 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,685 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 00:23:17,686 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 00:23:17,687 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 00:23:17,687 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 00:23:17,688 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 00:23:17,694 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,694 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,698 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,700 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,701 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 00:23:17,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 00:23:17,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 00:23:17,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 00:23:17,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/1) ... [2022-02-10 00:23:17,711 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 00:23:17,717 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:23:17,729 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-10 00:23:17,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-10 00:23:17,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-10 00:23:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 00:23:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 00:23:17,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-10 00:23:17,760 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 00:23:17,760 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 00:23:17,760 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 00:23:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 00:23:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 00:23:17,761 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-10 00:23:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-10 00:23:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-10 00:23:17,761 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-10 00:23:17,761 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-10 00:23:17,761 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-10 00:23:17,762 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 00:23:17,815 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 00:23:17,817 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 00:23:17,971 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 00:23:17,987 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 00:23:17,988 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 00:23:17,990 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:23:17 BoogieIcfgContainer [2022-02-10 00:23:17,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 00:23:17,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 00:23:17,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 00:23:17,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 00:23:17,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 12:23:17" (1/2) ... [2022-02-10 00:23:18,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@590282b5 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 12:23:18, skipping insertion in model container [2022-02-10 00:23:18,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 12:23:17" (2/2) ... [2022-02-10 00:23:18,013 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-02-10 00:23:18,017 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 00:23:18,018 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 00:23:18,018 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 00:23:18,018 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 00:23:18,095 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-10 00:23:18,143 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 00:23:18,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:23:18,146 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-10 00:23:18,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-10 00:23:18,183 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 00:23:18,189 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 00:23:18,189 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-10 00:23:18,350 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1440 transitions and produced 1355 states. [2022-02-10 00:23:18,353 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:23:18,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:23:18,358 INFO L85 PathProgramCache]: Analyzing trace with hash 2129735794, now seen corresponding path program 1 times [2022-02-10 00:23:18,365 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:23:18,366 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044154787] [2022-02-10 00:23:18,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:23:18,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:23:18,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:23:21,876 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 4644 proven. 578 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-10 00:23:21,877 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:23:21,877 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044154787] [2022-02-10 00:23:21,878 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044154787] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:23:21,878 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188344163] [2022-02-10 00:23:21,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:23:21,879 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:23:21,879 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:23:21,882 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 00:23:21,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 00:23:22,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:23:22,087 INFO L263 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-10 00:23:22,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:23:25,899 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 5212 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-10 00:23:25,899 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:23:28,923 INFO L134 CoverageAnalysis]: Checked inductivity of 5228 backedges. 5212 proven. 2 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2022-02-10 00:23:28,923 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188344163] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:23:28,924 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:23:28,924 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 56, 56] total 184 [2022-02-10 00:23:28,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978204879] [2022-02-10 00:23:28,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:23:28,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 185 states [2022-02-10 00:23:28,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:23:28,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 185 interpolants. [2022-02-10 00:23:28,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8567, Invalid=25473, Unknown=0, NotChecked=0, Total=34040 [2022-02-10 00:23:28,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:23:28,973 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:23:28,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 185 states, 185 states have (on average 3.854054054054054) internal successors, (713), 184 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 00:23:28,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:23:40,242 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3685 transitions and produced 3313 states. [2022-02-10 00:23:40,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:23:40,277 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-10 00:23:40,467 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-10 00:23:40,468 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:23:40,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:23:40,469 INFO L85 PathProgramCache]: Analyzing trace with hash 1337619708, now seen corresponding path program 2 times [2022-02-10 00:23:40,469 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:23:40,469 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [688196831] [2022-02-10 00:23:40,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:23:40,469 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:23:40,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:23:48,654 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 12564 proven. 17653 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-10 00:23:48,655 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:23:48,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [688196831] [2022-02-10 00:23:48,655 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [688196831] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:23:48,655 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774646825] [2022-02-10 00:23:48,655 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 00:23:48,656 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:23:48,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:23:48,657 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 00:23:48,658 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 00:23:48,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 00:23:48,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:23:48,915 INFO L263 TraceCheckSpWp]: Trace formula consists of 1568 conjuncts, 205 conjunts are in the unsatisfiable core [2022-02-10 00:23:48,932 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:23:59,121 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 24374 proven. 5839 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-10 00:23:59,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:24:02,600 INFO L134 CoverageAnalysis]: Checked inductivity of 30228 backedges. 24374 proven. 5839 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-10 00:24:02,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774646825] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:24:02,601 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:24:02,601 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [156, 126, 126] total 329 [2022-02-10 00:24:02,602 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987451478] [2022-02-10 00:24:02,602 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:24:02,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 330 states [2022-02-10 00:24:02,604 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:24:02,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 330 interpolants. [2022-02-10 00:24:02,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27617, Invalid=80953, Unknown=0, NotChecked=0, Total=108570 [2022-02-10 00:24:02,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:24:02,628 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:24:02,629 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 330 states, 330 states have (on average 4.566666666666666) internal successors, (1507), 329 states have internal predecessors, (1507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 00:24:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:24:02,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:24:27,518 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5711 transitions and produced 5076 states. [2022-02-10 00:24:27,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:24:27,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-10 00:24:27,538 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 00:24:27,723 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:24:27,724 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:24:27,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:24:27,725 INFO L85 PathProgramCache]: Analyzing trace with hash 2140478312, now seen corresponding path program 3 times [2022-02-10 00:24:27,725 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:24:27,725 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631463260] [2022-02-10 00:24:27,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:24:27,725 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:24:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:24:47,970 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 35069 proven. 40155 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-10 00:24:47,971 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:24:47,971 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631463260] [2022-02-10 00:24:47,971 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631463260] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:24:47,972 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2130492995] [2022-02-10 00:24:47,972 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 00:24:47,972 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:24:47,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:24:47,976 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 00:24:47,980 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 00:24:48,641 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 81 check-sat command(s) [2022-02-10 00:24:48,641 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:24:48,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 1282 conjuncts, 25 conjunts are in the unsatisfiable core [2022-02-10 00:24:48,661 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:24:52,287 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 27927 proven. 1273 refuted. 0 times theorem prover too weak. 46035 trivial. 0 not checked. [2022-02-10 00:24:52,288 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:24:54,752 INFO L134 CoverageAnalysis]: Checked inductivity of 75235 backedges. 27927 proven. 1273 refuted. 0 times theorem prover too weak. 46035 trivial. 0 not checked. [2022-02-10 00:24:54,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2130492995] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:24:54,753 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:24:54,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [280, 21, 21] total 314 [2022-02-10 00:24:54,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011282732] [2022-02-10 00:24:54,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:24:54,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 315 states [2022-02-10 00:24:54,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:24:54,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 315 interpolants. [2022-02-10 00:24:54,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24364, Invalid=74546, Unknown=0, NotChecked=0, Total=98910 [2022-02-10 00:24:54,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:24:54,771 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:24:54,772 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 315 states, 315 states have (on average 3.7365079365079366) internal successors, (1177), 314 states have internal predecessors, (1177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 00:24:54,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:24:54,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-02-10 00:24:54,772 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:25:25,892 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 8158 transitions and produced 6993 states. [2022-02-10 00:25:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:25:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-10 00:25:25,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 520 states. [2022-02-10 00:25:25,917 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-02-10 00:25:26,107 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:25:26,108 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:25:26,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:25:26,108 INFO L85 PathProgramCache]: Analyzing trace with hash -1469261321, now seen corresponding path program 4 times [2022-02-10 00:25:26,108 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:25:26,109 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226415779] [2022-02-10 00:25:26,109 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:25:26,109 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:25:27,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 00:26:05,681 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 76129 proven. 68614 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-10 00:26:05,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 00:26:05,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226415779] [2022-02-10 00:26:05,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226415779] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 00:26:05,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1742780907] [2022-02-10 00:26:05,682 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 00:26:05,682 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 00:26:05,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 00:26:05,683 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) [2022-02-10 00:26:05,687 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 00:26:06,171 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 00:26:06,171 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 00:26:06,233 INFO L263 TraceCheckSpWp]: Trace formula consists of 3328 conjuncts, 439 conjunts are in the unsatisfiable core [2022-02-10 00:26:06,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 00:26:52,634 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 120157 proven. 24582 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-10 00:26:52,635 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 00:27:08,501 INFO L134 CoverageAnalysis]: Checked inductivity of 144754 backedges. 120157 proven. 24582 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-02-10 00:27:08,502 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1742780907] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 00:27:08,502 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 00:27:08,502 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [391, 281, 281] total 795 [2022-02-10 00:27:08,503 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516316313] [2022-02-10 00:27:08,503 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 00:27:08,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 796 states [2022-02-10 00:27:08,506 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 00:27:08,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 796 interpolants. [2022-02-10 00:27:08,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=172941, Invalid=459879, Unknown=0, NotChecked=0, Total=632820 [2022-02-10 00:27:08,572 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:27:08,572 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 00:27:08,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 796 states, 796 states have (on average 4.232412060301508) internal successors, (3369), 795 states have internal predecessors, (3369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-10 00:27:08,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:27:08,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 350 states. [2022-02-10 00:27:08,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 520 states. [2022-02-10 00:27:08,575 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 00:36:24,916 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11672 transitions and produced 9770 states. [2022-02-10 00:36:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 217 states. [2022-02-10 00:36:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 350 states. [2022-02-10 00:36:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 520 states. [2022-02-10 00:36:24,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 770 states. [2022-02-10 00:36:24,939 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-10 00:36:25,119 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 [2022-02-10 00:36:25,120 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-10 00:36:25,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 00:36:25,120 INFO L85 PathProgramCache]: Analyzing trace with hash -1114572901, now seen corresponding path program 5 times [2022-02-10 00:36:25,121 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 00:36:25,121 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996059326] [2022-02-10 00:36:25,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 00:36:25,121 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 00:36:29,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-10 00:36:35,251 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-10 00:36:35,252 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-02-10 00:36:35,252 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. [2022-02-10 00:36:35,253 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-10 00:36:35,253 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-10 00:36:35,254 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-10 00:36:35,254 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-10 00:36:35,260 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-02-10 00:36:35,262 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 00:36:35,262 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 00:36:35,264 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 12:36:35 BasicIcfg [2022-02-10 00:36:35,264 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 00:36:35,265 INFO L158 Benchmark]: Toolchain (without parser) took 797612.08ms. Allocated memory was 184.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 141.6MB in the beginning and 878.8MB in the end (delta: -737.2MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-10 00:36:35,265 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 184.5MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 00:36:35,266 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.11ms. Allocated memory is still 184.5MB. Free memory was 141.6MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-02-10 00:36:35,266 INFO L158 Benchmark]: Boogie Preprocessor took 14.88ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 139.0MB in the end (delta: 911.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 00:36:35,266 INFO L158 Benchmark]: RCFGBuilder took 287.09ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 129.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-10 00:36:35,267 INFO L158 Benchmark]: TraceAbstraction took 797272.65ms. Allocated memory was 184.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 128.4MB in the beginning and 878.8MB in the end (delta: -750.4MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-02-10 00:36:35,269 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 0.12ms. Allocated memory is still 184.5MB. Free memory is still 142.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 33.11ms. Allocated memory is still 184.5MB. Free memory was 141.6MB in the beginning and 139.9MB in the end (delta: 1.6MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.88ms. Allocated memory is still 184.5MB. Free memory was 139.9MB in the beginning and 139.0MB in the end (delta: 911.3kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 287.09ms. Allocated memory is still 184.5MB. Free memory was 138.9MB in the beginning and 129.0MB in the end (delta: 10.0MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 797272.65ms. Allocated memory was 184.5MB in the beginning and 2.2GB in the end (delta: 2.0GB). Free memory was 128.4MB in the beginning and 878.8MB in the end (delta: -750.4MB). Peak memory consumption was 1.3GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. - TimeoutResultAtElement [Line: 76]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 1909 with TraceHistMax 381,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PredicateComparison was comparing new predicate (quantifier-free) to 110 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 797.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 623.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1857, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 4.1s SatisfiabilityAnalysisTime, 157.4s InterpolantComputationTime, 6244 NumberOfCodeBlocks, 5800 NumberOfCodeBlocksAsserted, 89 NumberOfCheckSat, 9354 ConstructedInterpolants, 0 QuantifiedInterpolants, 61244 SizeOfPredicates, 0 NumberOfNonLiveVariables, 6806 ConjunctsInSsa, 731 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 575943/766335 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