/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-bad/buffer-mult-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 11:37:31,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 11:37:31,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 11:37:31,067 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 11:37:31,074 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 11:37:31,075 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 11:37:31,076 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 11:37:31,077 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 11:37:31,078 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 11:37:31,079 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 11:37:31,080 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 11:37:31,082 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 11:37:31,083 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 11:37:31,095 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 11:37:31,096 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 11:37:31,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 11:37:31,098 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 11:37:31,105 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 11:37:31,105 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 11:37:31,106 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 11:37:31,111 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithoutDepranks-Lazy.epf [2022-03-04 11:37:31,143 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 11:37:31,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 11:37:31,144 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 11:37:31,144 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 11:37:31,144 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 11:37:31,145 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 11:37:31,145 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 11:37:31,145 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 11:37:31,145 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 11:37:31,145 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 11:37:31,146 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 11:37:31,146 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 11:37:31,146 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 11:37:31,146 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 11:37:31,147 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 11:37:31,147 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:37:31,148 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 11:37:31,148 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-04 11:37:31,149 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 11:37:31,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 11:37:31,391 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 11:37:31,393 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 11:37:31,394 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 11:37:31,395 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 11:37:31,396 INFO L432 ainManager$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 [2022-03-04 11:37:31,396 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' [2022-03-04 11:37:31,423 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 11:37:31,425 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 11:37:31,426 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 11:37:31,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 11:37:31,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 11:37:31,435 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,440 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,445 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 11:37:31,446 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 11:37:31,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 11:37:31,447 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 11:37:31,448 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 11:37:31,453 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,453 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,454 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,454 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,462 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,467 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,470 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 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 11:37:31,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 11:37:31,473 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 11:37:31,473 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 11:37:31,474 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:31" (1/1) ... [2022-03-04 11:37:31,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 11:37:31,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:31,508 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 11:37:31,520 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 11:37:31,550 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 11:37:31,550 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 11:37:31,550 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 11:37:31,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 11:37:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 11:37:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 11:37:31,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 11:37:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 11:37:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 11:37:31,551 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 11:37:31,551 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 11:37:31,551 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 11:37:31,552 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-03-04 11:37:31,552 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-03-04 11:37:31,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-03-04 11:37:31,554 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 11:37:31,605 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 11:37:31,607 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 11:37:31,686 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 11:37:31,702 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 11:37:31,703 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 11:37:31,705 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 11:37:31 BoogieIcfgContainer [2022-03-04 11:37:31,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 11:37:31,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 11:37:31,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 11:37:31,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 11:37:31,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 11:37:31" (1/2) ... [2022-03-04 11:37:31,726 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43de5931 and model type buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 11:37:31, skipping insertion in model container [2022-03-04 11:37:31,727 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 04.03 11:37:31" (2/2) ... [2022-03-04 11:37:31,728 INFO L111 eAbstractionObserver]: Analyzing ICFG buffer-mult-alt.wvr.bpl [2022-03-04 11:37:31,732 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 11:37:31,732 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 11:37:31,733 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 11:37:31,733 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 11:37:31,811 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-04 11:37:31,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 11:37:31,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:31,907 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 11:37:31,911 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 11:37:31,959 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 11:37:31,965 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-04 11:37:31,965 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-04 11:37:32,730 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1423 transitions and produced 1337 states. [2022-03-04 11:37:32,733 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:37:32,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:32,742 INFO L85 PathProgramCache]: Analyzing trace with hash -2135672813, now seen corresponding path program 1 times [2022-03-04 11:37:32,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:32,749 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1881511153] [2022-03-04 11:37:32,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:32,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:33,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 8516 backedges. 2740 proven. 0 refuted. 0 times theorem prover too weak. 5776 trivial. 0 not checked. [2022-03-04 11:37:33,272 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:33,272 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1881511153] [2022-03-04 11:37:33,273 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1881511153] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-04 11:37:33,273 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-04 11:37:33,273 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-03-04 11:37:33,275 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300138661] [2022-03-04 11:37:33,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-04 11:37:33,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-04 11:37:33,296 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:33,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-04 11:37:33,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-04 11:37:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:33,345 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:33,348 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 3 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:33,348 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:34,329 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2761 transitions and produced 2417 states. [2022-03-04 11:37:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:34,330 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-04 11:37:34,331 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:37:34,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:34,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1134333771, now seen corresponding path program 2 times [2022-03-04 11:37:34,334 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:34,335 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198114839] [2022-03-04 11:37:34,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:34,335 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:34,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:35,121 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 20513 proven. 8891 refuted. 0 times theorem prover too weak. 3306 trivial. 0 not checked. [2022-03-04 11:37:35,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:35,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198114839] [2022-03-04 11:37:35,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1198114839] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:35,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1482037733] [2022-03-04 11:37:35,123 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 11:37:35,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:35,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:35,124 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:35,126 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 11:37:35,398 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 11:37:35,398 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:35,411 INFO L263 TraceCheckSpWp]: Trace formula consists of 1440 conjuncts, 14 conjunts are in the unsatisfiable core [2022-03-04 11:37:35,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:36,701 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 19003 proven. 8835 refuted. 0 times theorem prover too weak. 4872 trivial. 0 not checked. [2022-03-04 11:37:36,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 32710 backedges. 19003 proven. 8835 refuted. 0 times theorem prover too weak. 4872 trivial. 0 not checked. [2022-03-04 11:37:37,945 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1482037733] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:37,945 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:37,946 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 8, 8] total 16 [2022-03-04 11:37:37,947 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1883469803] [2022-03-04 11:37:37,947 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:37,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-04 11:37:37,950 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:37,951 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-04 11:37:37,952 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=164, Unknown=0, NotChecked=0, Total=272 [2022-03-04 11:37:37,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:37,953 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:37,953 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 8.823529411764707) internal successors, (150), 16 states have internal predecessors, (150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:37,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:37,954 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:38,957 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3157 transitions and produced 2643 states. [2022-03-04 11:37:38,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:38,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:37:38,984 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-04 11:37:39,181 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,SelfDestructingSolverStorable1 [2022-03-04 11:37:39,182 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:37:39,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:39,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1553610996, now seen corresponding path program 3 times [2022-03-04 11:37:39,183 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:39,183 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802025593] [2022-03-04 11:37:39,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:39,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:39,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:39,938 INFO L134 CoverageAnalysis]: Checked inductivity of 40975 backedges. 21620 proven. 16321 refuted. 0 times theorem prover too weak. 3034 trivial. 0 not checked. [2022-03-04 11:37:39,939 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:39,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802025593] [2022-03-04 11:37:39,939 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1802025593] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:39,939 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1748620336] [2022-03-04 11:37:39,939 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 11:37:39,940 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:39,940 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:39,941 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:39,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 11:37:40,188 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2022-03-04 11:37:40,188 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:40,193 INFO L263 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 59 conjunts are in the unsatisfiable core [2022-03-04 11:37:40,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:41,724 INFO L134 CoverageAnalysis]: Checked inductivity of 40975 backedges. 14241 proven. 603 refuted. 0 times theorem prover too weak. 26131 trivial. 0 not checked. [2022-03-04 11:37:41,725 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:42,626 INFO L134 CoverageAnalysis]: Checked inductivity of 40975 backedges. 14241 proven. 603 refuted. 0 times theorem prover too weak. 26131 trivial. 0 not checked. [2022-03-04 11:37:42,626 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1748620336] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:42,626 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:42,627 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 29, 29] total 52 [2022-03-04 11:37:42,627 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467010382] [2022-03-04 11:37:42,627 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:42,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2022-03-04 11:37:42,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:42,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2022-03-04 11:37:42,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=680, Invalid=1972, Unknown=0, NotChecked=0, Total=2652 [2022-03-04 11:37:42,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:42,631 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:42,631 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 6.576923076923077) internal successors, (342), 52 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:42,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:42,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:37:42,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:45,181 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3502 transitions and produced 2950 states. [2022-03-04 11:37:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:37:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 11:37:45,203 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 11:37:45,387 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:45,388 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:37:45,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:37:45,388 INFO L85 PathProgramCache]: Analyzing trace with hash 545876223, now seen corresponding path program 4 times [2022-03-04 11:37:45,389 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:37:45,389 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692887164] [2022-03-04 11:37:45,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:37:45,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:37:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:37:55,092 INFO L134 CoverageAnalysis]: Checked inductivity of 41250 backedges. 27827 proven. 13364 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2022-03-04 11:37:55,092 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:37:55,092 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692887164] [2022-03-04 11:37:55,092 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692887164] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:37:55,093 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1945614466] [2022-03-04 11:37:55,093 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 11:37:55,093 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:37:55,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:37:55,094 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:37:55,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 11:37:55,339 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 11:37:55,340 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:37:55,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 1607 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-04 11:37:55,362 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:37:57,425 INFO L134 CoverageAnalysis]: Checked inductivity of 41250 backedges. 30305 proven. 5419 refuted. 0 times theorem prover too weak. 5526 trivial. 0 not checked. [2022-03-04 11:37:57,425 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:37:58,998 INFO L134 CoverageAnalysis]: Checked inductivity of 41250 backedges. 30305 proven. 5419 refuted. 0 times theorem prover too weak. 5526 trivial. 0 not checked. [2022-03-04 11:37:58,998 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1945614466] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:37:58,998 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:37:58,999 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [169, 14, 14] total 189 [2022-03-04 11:37:58,999 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791638740] [2022-03-04 11:37:58,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:37:59,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 190 states [2022-03-04 11:37:59,001 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:37:59,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 190 interpolants. [2022-03-04 11:37:59,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9598, Invalid=26312, Unknown=0, NotChecked=0, Total=35910 [2022-03-04 11:37:59,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:37:59,016 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:37:59,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 190 states, 190 states have (on average 4.036842105263158) internal successors, (767), 189 states have internal predecessors, (767), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:37:59,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:37:59,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:37:59,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-04 11:37:59,018 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:38:30,977 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 10482 transitions and produced 8474 states. [2022-03-04 11:38:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:38:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:38:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-03-04 11:38:30,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 468 states. [2022-03-04 11:38:30,996 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-04 11:38:31,179 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:38:31,180 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-03-04 11:38:31,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 11:38:31,181 INFO L85 PathProgramCache]: Analyzing trace with hash -1114024661, now seen corresponding path program 5 times [2022-03-04 11:38:31,181 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 11:38:31,182 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368483239] [2022-03-04 11:38:31,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 11:38:31,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 11:38:34,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 11:39:42,199 INFO L134 CoverageAnalysis]: Checked inductivity of 419671 backedges. 392499 proven. 26944 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-03-04 11:39:42,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 11:39:42,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368483239] [2022-03-04 11:39:42,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368483239] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 11:39:42,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108043636] [2022-03-04 11:39:42,200 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 11:39:42,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 11:39:42,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 11:39:42,207 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 11:39:42,208 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 11:39:50,502 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 495 check-sat command(s) [2022-03-04 11:39:50,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 11:39:50,691 INFO L263 TraceCheckSpWp]: Trace formula consists of 4953 conjuncts, 702 conjunts are in the unsatisfiable core [2022-03-04 11:39:50,720 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 11:39:54,447 INFO L134 CoverageAnalysis]: Checked inductivity of 419671 backedges. 393506 proven. 25937 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-03-04 11:39:54,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 11:40:31,730 INFO L134 CoverageAnalysis]: Checked inductivity of 419671 backedges. 393506 proven. 25937 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2022-03-04 11:40:31,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [108043636] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 11:40:31,730 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 11:40:31,731 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [454, 454, 454] total 762 [2022-03-04 11:40:31,732 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077061992] [2022-03-04 11:40:31,732 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 11:40:31,736 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 763 states [2022-03-04 11:40:31,736 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 11:40:31,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 763 interpolants. [2022-03-04 11:40:31,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=290251, Invalid=291155, Unknown=0, NotChecked=0, Total=581406 [2022-03-04 11:40:31,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 11:40:31,825 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 11:40:31,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 763 states, 763 states have (on average 4.058977719528178) internal successors, (3097), 762 states have internal predecessors, (3097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-04 11:40:31,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-03-04 11:40:31,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-04 11:40:31,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 104 states. [2022-03-04 11:40:31,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 468 states. [2022-03-04 11:40:31,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-04 11:51:13,585 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 [2022-03-04 11:51:13,586 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:51:13,585 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 11:51:14,643 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-03-04 11:51:14,646 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-03-04 11:51:14,647 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-04 11:51:15,469 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-04 11:51:15,470 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-03-04 11:51:15,471 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-04 11:51:15,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-03-04 11:51:15,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-03-04 11:51:15,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-03-04 11:51:15,472 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-03-04 11:51:15,477 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-03-04 11:51:15,479 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 11:51:15,479 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 11:51:15,481 INFO L202 PluginConnector]: Adding new model buffer-mult-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 11:51:15 BasicIcfg [2022-03-04 11:51:15,481 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 11:51:15,482 INFO L158 Benchmark]: Toolchain (without parser) took 824057.13ms. Allocated memory was 195.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 152.1MB in the beginning and 582.9MB in the end (delta: -430.8MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 11:51:15,482 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 11:51:15,482 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.16ms. Allocated memory is still 195.0MB. Free memory was 151.9MB in the beginning and 150.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-04 11:51:15,483 INFO L158 Benchmark]: Boogie Preprocessor took 24.25ms. Allocated memory is still 195.0MB. Free memory was 150.4MB in the beginning and 149.5MB in the end (delta: 941.5kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 11:51:15,483 INFO L158 Benchmark]: RCFGBuilder took 232.40ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 139.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 11:51:15,484 INFO L158 Benchmark]: TraceAbstraction took 823774.92ms. Allocated memory was 195.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 138.9MB in the beginning and 582.9MB in the end (delta: -444.0MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. [2022-03-04 11:51:15,485 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 0.11ms. Allocated memory is still 195.0MB. Free memory is still 153.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.16ms. Allocated memory is still 195.0MB. Free memory was 151.9MB in the beginning and 150.4MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 24.25ms. Allocated memory is still 195.0MB. Free memory was 150.4MB in the beginning and 149.5MB in the end (delta: 941.5kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 232.40ms. Allocated memory is still 195.0MB. Free memory was 149.4MB in the beginning and 139.3MB in the end (delta: 10.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 823774.92ms. Allocated memory was 195.0MB in the beginning and 1.6GB in the end (delta: 1.4GB). Free memory was 138.9MB in the beginning and 582.9MB in the end (delta: -444.0MB). Peak memory consumption was 1.5GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while executing Executor. - 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 executing Executor. - 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 executing Executor. - 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 executing Executor. - 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 executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 54 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 823.6s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 680.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1047, 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, 12.6s SatisfiabilityAnalysisTime, 128.3s InterpolantComputationTime, 7994 NumberOfCodeBlocks, 7659 NumberOfCodeBlocksAsserted, 533 NumberOfCheckSat, 11836 ConstructedInterpolants, 0 QuantifiedInterpolants, 57289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8776 ConjunctsInSsa, 793 ConjunctsInUnsatCore, 13 InterpolantComputations, 1 PerfectInterpolantSequences, 1465226/1612334 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