/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/parallel/misc-2-unrolled-atomic.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 11:26:14,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 11:26:14,666 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 11:26:14,746 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 11:26:14,746 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 11:26:14,747 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 11:26:14,748 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 11:26:14,749 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 11:26:14,750 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 11:26:14,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 11:26:14,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 11:26:14,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 11:26:14,752 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 11:26:14,753 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 11:26:14,753 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 11:26:14,758 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 11:26:14,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 11:26:14,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 11:26:14,767 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 11:26:14,770 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 11:26:14,771 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 11:26:14,773 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 11:26:14,775 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 11:26:14,775 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 11:26:14,779 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 11:26:14,784 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 11:26:14,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 11:26:14,785 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 11:26:14,787 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 [2022-02-20 11:26:14,809 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 11:26:14,809 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 11:26:14,810 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 11:26:14,810 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 11:26:14,810 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 11:26:14,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 11:26:14,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 11:26:14,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 11:26:14,811 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 11:26:14,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 11:26:14,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 11:26:14,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 11:26:14,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 11:26:14,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 11:26:14,813 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 11:26:14,813 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:26:14,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 11:26:14,815 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 11:26:14,816 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 11:26:14,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 11:26:14,816 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-20 11:26:14,816 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 11:26:15,015 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 11:26:15,039 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 11:26:15,041 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 11:26:15,041 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 11:26:15,042 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 11:26:15,043 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl [2022-02-20 11:26:15,044 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl' [2022-02-20 11:26:15,066 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 11:26:15,067 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 11:26:15,068 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 11:26:15,068 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 11:26:15,068 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 11:26:15,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,082 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,087 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 11:26:15,088 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 11:26:15,089 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 11:26:15,089 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 11:26:15,089 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 11:26:15,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,095 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,095 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,096 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,097 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,099 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,100 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 11:26:15,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 11:26:15,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 11:26:15,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 11:26:15,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/1) ... [2022-02-20 11:26:15,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 11:26:15,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:15,153 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) [2022-02-20 11:26:15,187 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 [2022-02-20 11:26:15,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 11:26:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 11:26:15,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 11:26:15,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 11:26:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 11:26:15,208 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 11:26:15,208 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 11:26:15,208 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 11:26:15,208 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 11:26:15,209 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 11:26:15,243 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 11:26:15,244 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 11:26:15,347 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 11:26:15,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 11:26:15,383 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 11:26:15,387 INFO L202 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:26:15 BoogieIcfgContainer [2022-02-20 11:26:15,387 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 11:26:15,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 11:26:15,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 11:26:15,393 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 11:26:15,393 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 11:26:15" (1/2) ... [2022-02-20 11:26:15,394 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@450bf494 and model type misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 11:26:15, skipping insertion in model container [2022-02-20 11:26:15,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 11:26:15" (2/2) ... [2022-02-20 11:26:15,395 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled-atomic.wvr.bpl [2022-02-20 11:26:15,401 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 11:26:15,401 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 11:26:15,401 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 11:26:15,401 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 11:26:15,442 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-20 11:26:15,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 11:26:15,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:15,493 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) [2022-02-20 11:26:15,517 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 [2022-02-20 11:26:15,537 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 11:26:15,543 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 [2022-02-20 11:26:15,543 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-20 11:26:15,659 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 150 transitions and produced 136 states. [2022-02-20 11:26:15,661 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:15,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:15,664 INFO L85 PathProgramCache]: Analyzing trace with hash -989075524, now seen corresponding path program 1 times [2022-02-20 11:26:15,670 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:15,670 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791611820] [2022-02-20 11:26:15,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:15,671 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:15,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:16,247 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 228 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:16,247 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:16,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791611820] [2022-02-20 11:26:16,248 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791611820] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:16,248 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2142971958] [2022-02-20 11:26:16,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:16,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:16,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:16,255 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) [2022-02-20 11:26:16,259 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 11:26:16,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:16,304 INFO L263 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 26 conjunts are in the unsatisfiable core [2022-02-20 11:26:16,311 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:16,498 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 228 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:16,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:17,091 INFO L134 CoverageAnalysis]: Checked inductivity of 305 backedges. 228 proven. 71 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:17,091 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2142971958] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:17,091 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:17,092 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 37 [2022-02-20 11:26:17,093 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830591276] [2022-02-20 11:26:17,094 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:17,098 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-20 11:26:17,098 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:17,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-20 11:26:17,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=443, Invalid=963, Unknown=0, NotChecked=0, Total=1406 [2022-02-20 11:26:17,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:17,120 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:17,122 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.5789473684210527) internal successors, (98), 37 states have internal predecessors, (98), 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) [2022-02-20 11:26:17,122 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:17,893 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 224 transitions and produced 194 states. [2022-02-20 11:26:17,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:17,912 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 11:26:18,111 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 [2022-02-20 11:26:18,111 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:18,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:18,112 INFO L85 PathProgramCache]: Analyzing trace with hash -594207042, now seen corresponding path program 2 times [2022-02-20 11:26:18,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:18,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025054039] [2022-02-20 11:26:18,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:18,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:18,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:18,709 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 529 proven. 169 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:18,709 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:18,709 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025054039] [2022-02-20 11:26:18,710 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025054039] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:18,710 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808200870] [2022-02-20 11:26:18,710 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 11:26:18,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:18,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:18,711 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) [2022-02-20 11:26:18,713 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 11:26:18,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 11:26:18,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:18,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 30 conjunts are in the unsatisfiable core [2022-02-20 11:26:18,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 439 proven. 169 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-02-20 11:26:18,890 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:19,382 INFO L134 CoverageAnalysis]: Checked inductivity of 698 backedges. 439 proven. 169 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2022-02-20 11:26:19,382 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808200870] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:19,382 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:19,382 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 29, 29] total 52 [2022-02-20 11:26:19,383 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295866621] [2022-02-20 11:26:19,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:19,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-02-20 11:26:19,384 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:19,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-02-20 11:26:19,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=734, Invalid=2022, Unknown=0, NotChecked=0, Total=2756 [2022-02-20 11:26:19,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:19,385 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:19,385 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 2.188679245283019) internal successors, (116), 52 states have internal predecessors, (116), 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) [2022-02-20 11:26:19,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:19,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:19,922 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 329 transitions and produced 284 states. [2022-02-20 11:26:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:19,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:19,942 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:20,142 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 [2022-02-20 11:26:20,142 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:20,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:20,143 INFO L85 PathProgramCache]: Analyzing trace with hash 1802673914, now seen corresponding path program 3 times [2022-02-20 11:26:20,143 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:20,143 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739546650] [2022-02-20 11:26:20,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:20,144 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:20,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:21,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 732 proven. 722 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:21,032 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:21,032 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739546650] [2022-02-20 11:26:21,032 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739546650] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:21,033 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2126146049] [2022-02-20 11:26:21,033 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 11:26:21,033 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:21,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:21,035 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) [2022-02-20 11:26:21,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 11:26:21,128 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 29 check-sat command(s) [2022-02-20 11:26:21,128 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:21,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-20 11:26:21,134 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:21,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 732 proven. 722 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:21,310 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:22,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1460 backedges. 732 proven. 722 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:22,396 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2126146049] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:22,396 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:22,396 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 76 [2022-02-20 11:26:22,396 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89908048] [2022-02-20 11:26:22,396 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:22,397 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 77 states [2022-02-20 11:26:22,397 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:22,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 77 interpolants. [2022-02-20 11:26:22,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1676, Invalid=4176, Unknown=0, NotChecked=0, Total=5852 [2022-02-20 11:26:22,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:22,399 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:22,400 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 77 states, 77 states have (on average 2.324675324675325) internal successors, (179), 76 states have internal predecessors, (179), 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) [2022-02-20 11:26:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:22,400 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:23,927 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 333 transitions and produced 276 states. [2022-02-20 11:26:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:23,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:23,946 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:24,144 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 [2022-02-20 11:26:24,145 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:24,145 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:24,145 INFO L85 PathProgramCache]: Analyzing trace with hash 1847850720, now seen corresponding path program 4 times [2022-02-20 11:26:24,145 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:24,145 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136524611] [2022-02-20 11:26:24,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:24,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:24,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:25,002 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 784 proven. 625 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:25,002 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:25,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136524611] [2022-02-20 11:26:25,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136524611] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:25,003 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [833511700] [2022-02-20 11:26:25,003 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 11:26:25,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:25,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:25,004 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) [2022-02-20 11:26:25,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 11:26:25,051 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 11:26:25,052 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:25,053 INFO L263 TraceCheckSpWp]: Trace formula consists of 291 conjuncts, 54 conjunts are in the unsatisfiable core [2022-02-20 11:26:25,055 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:25,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 778 proven. 625 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:25,260 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:26,299 INFO L134 CoverageAnalysis]: Checked inductivity of 1409 backedges. 778 proven. 625 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:26,300 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [833511700] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:26,300 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:26,300 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [55, 53, 53] total 81 [2022-02-20 11:26:26,300 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323880380] [2022-02-20 11:26:26,300 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:26,301 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2022-02-20 11:26:26,301 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:26,302 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2022-02-20 11:26:26,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1865, Invalid=4777, Unknown=0, NotChecked=0, Total=6642 [2022-02-20 11:26:26,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:26,303 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:26,303 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 2.1219512195121952) internal successors, (174), 81 states have internal predecessors, (174), 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) [2022-02-20 11:26:26,303 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:26,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:26,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:26,304 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:27,300 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 438 transitions and produced 366 states. [2022-02-20 11:26:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:27,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:27,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:27,517 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 [2022-02-20 11:26:27,518 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:27,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:27,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1730039780, now seen corresponding path program 5 times [2022-02-20 11:26:27,518 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:27,519 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054125299] [2022-02-20 11:26:27,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:27,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:28,491 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 1524 proven. 1031 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:28,491 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:28,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054125299] [2022-02-20 11:26:28,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054125299] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:28,491 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1538612313] [2022-02-20 11:26:28,492 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 11:26:28,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:28,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:28,493 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:26:28,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 11:26:28,563 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 41 check-sat command(s) [2022-02-20 11:26:28,564 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:28,565 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 66 conjunts are in the unsatisfiable core [2022-02-20 11:26:28,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:29,137 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 960 proven. 1575 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-20 11:26:29,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:30,519 INFO L134 CoverageAnalysis]: Checked inductivity of 2561 backedges. 960 proven. 1575 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2022-02-20 11:26:30,519 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1538612313] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:30,520 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:30,520 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 63, 63] total 106 [2022-02-20 11:26:30,520 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [609246273] [2022-02-20 11:26:30,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:30,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states [2022-02-20 11:26:30,520 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:30,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants. [2022-02-20 11:26:30,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3155, Invalid=8187, Unknown=0, NotChecked=0, Total=11342 [2022-02-20 11:26:30,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:30,524 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:30,524 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.2523364485981308) internal successors, (241), 106 states have internal predecessors, (241), 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) [2022-02-20 11:26:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:30,524 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:32,594 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 472 transitions and produced 381 states. [2022-02-20 11:26:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:32,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:32,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:32,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:32,811 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:32,812 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:32,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:32,812 INFO L85 PathProgramCache]: Analyzing trace with hash -1720222450, now seen corresponding path program 6 times [2022-02-20 11:26:32,813 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:32,813 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788293379] [2022-02-20 11:26:32,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:32,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:32,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:34,314 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 1521 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:34,315 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:34,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788293379] [2022-02-20 11:26:34,315 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788293379] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:34,315 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [76055203] [2022-02-20 11:26:34,315 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 11:26:34,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:34,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:34,317 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:26:34,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 11:26:34,430 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 40 check-sat command(s) [2022-02-20 11:26:34,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:34,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 79 conjunts are in the unsatisfiable core [2022-02-20 11:26:34,435 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:34,687 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 1521 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:34,688 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:36,433 INFO L134 CoverageAnalysis]: Checked inductivity of 2890 backedges. 1521 proven. 1369 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:36,433 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [76055203] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:36,433 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:36,434 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 117 [2022-02-20 11:26:36,434 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [254182053] [2022-02-20 11:26:36,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:36,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 118 states [2022-02-20 11:26:36,437 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:36,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 118 interpolants. [2022-02-20 11:26:36,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3863, Invalid=9943, Unknown=0, NotChecked=0, Total=13806 [2022-02-20 11:26:36,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:36,442 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:36,443 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 118 states, 118 states have (on average 2.0847457627118646) internal successors, (246), 117 states have internal predecessors, (246), 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) [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:36,443 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:38,308 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 584 transitions and produced 476 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:38,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:38,341 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:38,526 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:38,526 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:38,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:38,527 INFO L85 PathProgramCache]: Analyzing trace with hash 1406644684, now seen corresponding path program 7 times [2022-02-20 11:26:38,527 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:38,528 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323698417] [2022-02-20 11:26:38,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:38,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:38,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:40,776 INFO L134 CoverageAnalysis]: Checked inductivity of 4573 backedges. 2707 proven. 1860 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:40,776 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:40,776 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323698417] [2022-02-20 11:26:40,776 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323698417] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:40,778 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [822154687] [2022-02-20 11:26:40,778 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 11:26:40,778 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:40,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:40,780 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:26:40,781 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 11:26:40,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:40,849 INFO L263 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-20 11:26:40,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:41,245 INFO L134 CoverageAnalysis]: Checked inductivity of 4573 backedges. 2707 proven. 1860 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:41,246 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:43,536 INFO L134 CoverageAnalysis]: Checked inductivity of 4573 backedges. 2707 proven. 1860 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 11:26:43,536 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [822154687] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:43,536 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:43,536 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [91, 91, 91] total 151 [2022-02-20 11:26:43,536 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786451119] [2022-02-20 11:26:43,537 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:43,537 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 152 states [2022-02-20 11:26:43,537 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:43,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 152 interpolants. [2022-02-20 11:26:43,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6476, Invalid=16476, Unknown=0, NotChecked=0, Total=22952 [2022-02-20 11:26:43,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:43,543 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:43,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 152 states, 152 states have (on average 2.164473684210526) internal successors, (329), 151 states have internal predecessors, (329), 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) [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:43,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:48,336 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 678 transitions and produced 549 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-20 11:26:48,354 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:48,543 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-20 11:26:48,544 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:48,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:48,544 INFO L85 PathProgramCache]: Analyzing trace with hash 713927638, now seen corresponding path program 8 times [2022-02-20 11:26:48,544 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:48,544 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049046512] [2022-02-20 11:26:48,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:48,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:48,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:52,056 INFO L134 CoverageAnalysis]: Checked inductivity of 6344 backedges. 3844 proven. 2500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 11:26:52,056 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:52,056 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049046512] [2022-02-20 11:26:52,056 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049046512] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 11:26:52,057 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1818860952] [2022-02-20 11:26:52,057 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 11:26:52,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:52,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 11:26:52,061 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 11:26:52,062 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 11:26:52,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 11:26:52,144 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 11:26:52,148 INFO L263 TraceCheckSpWp]: Trace formula consists of 586 conjuncts, 104 conjunts are in the unsatisfiable core [2022-02-20 11:26:52,152 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 11:26:52,405 INFO L134 CoverageAnalysis]: Checked inductivity of 6344 backedges. 3712 proven. 2500 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-20 11:26:52,406 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 11:26:55,196 INFO L134 CoverageAnalysis]: Checked inductivity of 6344 backedges. 3712 proven. 2500 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-20 11:26:55,196 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1818860952] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 11:26:55,196 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 11:26:55,197 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [114, 103, 103] total 165 [2022-02-20 11:26:55,197 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [642215495] [2022-02-20 11:26:55,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 11:26:55,197 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 166 states [2022-02-20 11:26:55,197 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:55,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 166 interpolants. [2022-02-20 11:26:55,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7371, Invalid=20019, Unknown=0, NotChecked=0, Total=27390 [2022-02-20 11:26:55,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:55,200 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:55,201 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 166 states, 166 states have (on average 2.0602409638554215) internal successors, (342), 165 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) [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-20 11:26:55,201 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:58,114 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 783 transitions and produced 639 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:58,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 123 states. [2022-02-20 11:26:58,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 155 states. [2022-02-20 11:26:58,135 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-20 11:26:58,335 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 11:26:58,335 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-20 11:26:58,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 11:26:58,336 INFO L85 PathProgramCache]: Analyzing trace with hash -751643118, now seen corresponding path program 9 times [2022-02-20 11:26:58,336 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 11:26:58,336 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529347475] [2022-02-20 11:26:58,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 11:26:58,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 11:26:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 11:26:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 8450 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8450 trivial. 0 not checked. [2022-02-20 11:26:58,969 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 11:26:58,969 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529347475] [2022-02-20 11:26:58,969 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529347475] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 11:26:58,969 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 11:26:58,969 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-02-20 11:26:58,969 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [149426343] [2022-02-20 11:26:58,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 11:26:58,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 11:26:58,970 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 11:26:58,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 11:26:58,970 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 11:26:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 11:26:58,970 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 11:26:58,970 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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) [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 44 states. [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 55 states. [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 80 states. [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 77 states. [2022-02-20 11:26:58,970 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-20 11:26:58,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 123 states. [2022-02-20 11:26:58,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 155 states. [2022-02-20 11:26:58,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.