/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 04:41:00,708 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:41:00,710 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:41:00,753 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-20 04:41:00,753 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-20 04:41:00,755 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-20 04:41:00,756 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-20 04:41:00,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-20 04:41:00,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-20 04:41:00,760 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-20 04:41:00,761 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-20 04:41:00,763 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-20 04:41:00,764 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:41:00,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:41:00,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:41:00,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:41:00,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:41:00,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:41:00,774 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:41:00,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:41:00,777 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:41:00,784 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:41:00,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:41:00,788 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:41:00,797 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:41:00,806 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:41:00,807 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:41:00,808 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:41:00,809 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-20 04:41:00,850 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:41:00,851 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:41:00,851 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:41:00,851 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:41:00,852 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:41:00,852 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:41:00,853 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:41:00,853 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:41:00,853 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:41:00,853 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:41:00,854 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:41:00,854 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:41:00,855 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:41:00,856 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:41:00,856 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:41:00,856 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:41:00,856 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:41:00,856 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:41:00,857 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:41:00,857 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:41:00,858 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:41:00,858 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:41:00,858 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:41:00,858 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:41:00,858 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:41:00,858 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:41:00,859 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:41:00,859 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:41:00,859 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:41:00,859 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:41:00,859 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:41:01,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:41:01,119 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:41:01,121 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:41:01,122 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:41:01,123 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:41:01,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-02-20 04:41:01,124 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-02-20 04:41:01,146 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:41:01,147 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:41:01,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:41:01,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:41:01,151 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:41:01,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,173 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,179 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:41:01,181 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:41:01,182 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:41:01,182 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:41:01,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:41:01,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,192 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,193 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,198 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:41:01,205 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:41:01,205 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:41:01,205 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:41:01,206 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/1) ... [2022-02-20 04:41:01,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:41:01,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:01,244 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 04:41:01,266 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 04:41:01,279 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:41:01,279 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:41:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:41:01,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:41:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:41:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:41:01,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:41:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:41:01,280 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:41:01,280 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:41:01,280 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:41:01,281 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:41:01,282 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 04:41:01,331 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:41:01,332 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:41:01,421 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:41:01,433 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:41:01,433 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:41:01,435 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:41:01 BoogieIcfgContainer [2022-02-20 04:41:01,435 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:41:01,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:41:01,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:41:01,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:41:01,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:41:01" (1/2) ... [2022-02-20 04:41:01,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@545227f4 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:41:01, skipping insertion in model container [2022-02-20 04:41:01,441 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:41:01" (2/2) ... [2022-02-20 04:41:01,442 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-02-20 04:41:01,446 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:41:01,446 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:41:01,446 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:41:01,446 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:41:01,475 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 04:41:01,510 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:41:01,510 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:01,512 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 04:41:01,539 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 04:41:01,549 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:41:01,555 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 04:41:01,555 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 04:41:01,724 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-02-20 04:41:01,726 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:41:01,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:41:01,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-02-20 04:41:01,741 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:41:01,742 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679888673] [2022-02-20 04:41:01,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:01,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:41:01,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:02,017 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-02-20 04:41:02,018 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:41:02,018 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679888673] [2022-02-20 04:41:02,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679888673] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:41:02,019 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900233836] [2022-02-20 04:41:02,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:02,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:41:02,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:02,023 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 04:41:02,061 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 04:41:02,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:02,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-20 04:41:02,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:41:02,381 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:41:02,382 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:41:02,590 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:41:02,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900233836] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:41:02,590 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:41:02,591 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-02-20 04:41:02,593 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161543532] [2022-02-20 04:41:02,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:41:02,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 04:41:02,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:41:02,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 04:41:02,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-02-20 04:41:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:02,631 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:41:02,633 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.2222222222222223) internal successors, (58), 18 states have internal predecessors, (58), 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 04:41:02,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:03,153 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-02-20 04:41:03,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:03,175 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 04:41:03,368 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 04:41:03,368 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:41:03,369 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:41:03,369 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-02-20 04:41:03,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:41:03,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565975387] [2022-02-20 04:41:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:03,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:41:03,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:03,506 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:03,506 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:41:03,506 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565975387] [2022-02-20 04:41:03,506 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565975387] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:41:03,507 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [619204064] [2022-02-20 04:41:03,507 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:41:03,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:41:03,507 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:03,508 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 04:41:03,530 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 04:41:03,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:41:03,557 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:41:03,558 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-02-20 04:41:03,559 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:41:03,735 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:03,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:41:03,929 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:03,930 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [619204064] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:41:03,930 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:41:03,930 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-02-20 04:41:03,930 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [476655213] [2022-02-20 04:41:03,931 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:41:03,931 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-02-20 04:41:03,932 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:41:03,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-02-20 04:41:03,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-02-20 04:41:03,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:03,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:41:03,933 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 2.625) internal successors, (63), 24 states have internal predecessors, (63), 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 04:41:03,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:03,933 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:04,324 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-02-20 04:41:04,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:04,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:41:04,351 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 04:41:04,525 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 04:41:04,526 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:41:04,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:41:04,526 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-02-20 04:41:04,526 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:41:04,527 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436169357] [2022-02-20 04:41:04,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:04,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:41:04,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:05,116 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:05,116 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:41:05,116 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436169357] [2022-02-20 04:41:05,117 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436169357] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:41:05,117 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [256376915] [2022-02-20 04:41:05,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:41:05,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:41:05,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:05,120 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 04:41:05,144 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 04:41:05,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-02-20 04:41:05,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:41:05,167 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-20 04:41:05,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:41:05,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:05,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:05,969 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:41:05,970 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 43 treesize of output 87 [2022-02-20 04:41:06,193 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:06,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:41:06,930 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,931 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:06,932 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,934 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:06,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:06,996 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-02-20 04:41:06,997 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 6 new quantified variables, introduced 13 case distinctions, treesize of input 40 treesize of output 85 [2022-02-20 04:41:07,162 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,163 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:07,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:07,170 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:07,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:07,173 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 6 disjoint index pairs (out of 28 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 40 treesize of output 5 [2022-02-20 04:41:07,325 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:07,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [256376915] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:41:07,325 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:41:07,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-02-20 04:41:07,326 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [302977488] [2022-02-20 04:41:07,326 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:41:07,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-20 04:41:07,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:41:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-20 04:41:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-02-20 04:41:07,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:07,328 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:41:07,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.210526315789474) internal successors, (84), 38 states have internal predecessors, (84), 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 04:41:07,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:07,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:41:07,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:16,159 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-02-20 04:41:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:41:16,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:41:16,179 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 04:41:16,360 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 04:41:16,361 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:41:16,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:41:16,362 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-02-20 04:41:16,362 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:41:16,362 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342349783] [2022-02-20 04:41:16,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:16,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:41:16,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:16,921 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:16,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:41:16,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342349783] [2022-02-20 04:41:16,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342349783] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:41:16,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [215945825] [2022-02-20 04:41:16,922 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:41:16,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:41:16,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:16,928 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 04:41:16,944 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 04:41:16,980 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:41:16,980 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:41:16,981 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-02-20 04:41:16,983 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:41:17,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:17,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:17,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:17,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:17,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:17,822 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 10 disjoint index pairs (out of 21 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 30 [2022-02-20 04:41:17,872 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:17,872 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:41:18,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:18,551 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:18,552 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:18,886 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-02-20 04:41:18,886 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 3 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 42 case distinctions, treesize of input 50 treesize of output 313 [2022-02-20 04:41:31,800 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,801 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,803 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,804 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,805 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,807 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,808 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,809 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,811 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,812 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,813 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,814 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,815 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,816 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,817 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,818 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,819 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,820 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,821 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,827 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,831 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,832 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:31,867 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:41:31,867 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 35 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 10 case distinctions, treesize of input 51 treesize of output 126 [2022-02-20 04:41:32,312 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:32,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [215945825] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:41:32,312 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:41:32,312 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-02-20 04:41:32,313 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756791163] [2022-02-20 04:41:32,313 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:41:32,313 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-02-20 04:41:32,313 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:41:32,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-02-20 04:41:32,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-02-20 04:41:32,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:32,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:41:32,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.255813953488372) internal successors, (97), 43 states have internal predecessors, (97), 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 04:41:32,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:32,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:41:32,315 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:41:32,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:41:41,673 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-02-20 04:41:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:41:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:41:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:41:41,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:41:41,690 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-20 04:41:41,875 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 04:41:41,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:41:41,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:41:41,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-02-20 04:41:41,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:41:41,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524738381] [2022-02-20 04:41:41,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:41:41,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:41:41,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:41:42,477 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:42,477 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:41:42,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524738381] [2022-02-20 04:41:42,477 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524738381] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:41:42,477 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1305888776] [2022-02-20 04:41:42,477 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:41:42,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:41:42,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:41:42,480 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 04:41:42,481 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 04:41:42,518 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-02-20 04:41:42,519 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:41:42,520 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-20 04:41:42,521 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:41:43,776 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:43,779 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:43,780 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:41:43,829 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-02-20 04:41:43,830 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 3 disjoint index pairs (out of 28 index pairs), introduced 12 new quantified variables, introduced 25 case distinctions, treesize of input 219 treesize of output 106 [2022-02-20 04:41:43,879 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:41:43,879 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:41:45,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,176 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,180 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,188 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,192 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,195 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:41:45,587 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-20 04:41:45,588 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 15 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 51 case distinctions, treesize of input 118 treesize of output 581 [2022-02-20 04:48:00,493 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:00,494 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1305888776] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:48:00,494 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:48:00,494 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-02-20 04:48:00,494 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106281291] [2022-02-20 04:48:00,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:48:00,495 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-02-20 04:48:00,495 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:48:00,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-02-20 04:48:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-02-20 04:48:00,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:00,496 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:48:00,497 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 2.1372549019607843) internal successors, (109), 51 states have internal predecessors, (109), 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 04:48:00,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:00,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:00,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:00,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:00,497 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:08,355 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-02-20 04:48:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:08,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:08,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:48:08,382 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 04:48:08,575 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 04:48:08,576 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:48:08,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:48:08,576 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-02-20 04:48:08,576 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:48:08,576 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061976480] [2022-02-20 04:48:08,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:48:08,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:48:08,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:08,739 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:08,739 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:48:08,739 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061976480] [2022-02-20 04:48:08,739 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061976480] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:48:08,740 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2146947021] [2022-02-20 04:48:08,740 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:48:08,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:48:08,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:48:08,744 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 04:48:08,745 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 04:48:08,778 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-02-20 04:48:08,778 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:48:08,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-02-20 04:48:08,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:48:09,101 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:09,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:48:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:09,482 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2146947021] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:48:09,482 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:48:09,483 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-02-20 04:48:09,483 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1649100490] [2022-02-20 04:48:09,483 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:48:09,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-02-20 04:48:09,483 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:48:09,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-02-20 04:48:09,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-02-20 04:48:09,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:09,486 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:48:09,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 48 states, 48 states have (on average 2.375) internal successors, (114), 48 states have internal predecessors, (114), 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 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:48:09,487 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:10,915 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-02-20 04:48:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:10,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:48:10,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-02-20 04:48:10,937 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 04:48:11,127 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 04:48:11,128 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:48:11,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:48:11,128 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-02-20 04:48:11,128 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:48:11,128 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039435537] [2022-02-20 04:48:11,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:48:11,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:48:11,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:11,365 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:48:11,365 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039435537] [2022-02-20 04:48:11,366 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039435537] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:48:11,366 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939130310] [2022-02-20 04:48:11,366 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:48:11,366 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:48:11,366 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:48:11,367 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 04:48:11,368 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 04:48:11,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:11,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-20 04:48:11,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:48:11,777 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 04:48:11,777 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:48:12,082 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-20 04:48:12,082 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939130310] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:48:12,082 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:48:12,082 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-02-20 04:48:12,082 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1015001735] [2022-02-20 04:48:12,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:48:12,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-20 04:48:12,083 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:48:12,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-20 04:48:12,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-02-20 04:48:12,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:12,085 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:48:12,086 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.44) internal successors, (122), 50 states have internal predecessors, (122), 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 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-02-20 04:48:12,086 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:16,291 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-02-20 04:48:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:16,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:48:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:48:16,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:48:16,308 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 04:48:16,492 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 04:48:16,493 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:48:16,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:48:16,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-02-20 04:48:16,493 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:48:16,493 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [458041587] [2022-02-20 04:48:16,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:48:16,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:48:16,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:16,749 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:16,750 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:48:16,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [458041587] [2022-02-20 04:48:16,750 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [458041587] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:48:16,750 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227497710] [2022-02-20 04:48:16,750 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:48:16,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:48:16,750 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:48:16,756 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 04:48:16,757 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 04:48:16,795 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:48:16,795 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:48:16,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 04:48:16,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:48:17,241 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:48:17,241 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:48:17,568 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-20 04:48:17,568 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227497710] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:48:17,568 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:48:17,568 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-02-20 04:48:17,570 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094732083] [2022-02-20 04:48:17,571 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:48:17,571 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-02-20 04:48:17,571 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:48:17,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-02-20 04:48:17,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-02-20 04:48:17,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:17,573 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:48:17,573 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 2.388888888888889) internal successors, (129), 54 states have internal predecessors, (129), 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 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:48:17,573 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:18,517 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:48:18,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:48:18,535 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 04:48:18,723 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 04:48:18,724 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:48:18,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:48:18,724 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-02-20 04:48:18,724 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:48:18,724 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595542297] [2022-02-20 04:48:18,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:48:18,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:48:18,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:18,950 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:18,951 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:48:18,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595542297] [2022-02-20 04:48:18,951 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595542297] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:48:18,951 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [653776403] [2022-02-20 04:48:18,952 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:48:18,952 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:48:18,952 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:48:18,954 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:48:18,954 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-20 04:48:18,991 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-02-20 04:48:18,992 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:48:18,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-02-20 04:48:18,994 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:48:19,483 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:19,483 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:48:20,063 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:20,063 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [653776403] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:48:20,063 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:48:20,063 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-02-20 04:48:20,063 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360612227] [2022-02-20 04:48:20,063 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:48:20,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-02-20 04:48:20,064 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:48:20,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-02-20 04:48:20,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-02-20 04:48:20,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:20,066 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:48:20,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 2.227272727272727) internal successors, (147), 66 states have internal predecessors, (147), 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 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:48:20,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:48:20,792 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-02-20 04:48:20,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-02-20 04:48:20,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-02-20 04:48:20,809 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-20 04:48:20,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-20 04:48:20,994 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:48:20,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:48:20,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-02-20 04:48:20,994 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:48:20,994 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448356361] [2022-02-20 04:48:20,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:48:20,995 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:48:21,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:48:22,237 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:22,237 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:48:22,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448356361] [2022-02-20 04:48:22,237 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448356361] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:48:22,237 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870789077] [2022-02-20 04:48:22,237 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:48:22,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:48:22,238 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:48:22,238 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:48:22,239 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-20 04:48:22,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:48:22,275 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:48:22,276 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-02-20 04:48:22,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:48:24,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,445 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,446 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:24,447 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,448 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,449 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,450 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,451 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,452 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,453 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,454 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,455 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,456 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,460 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,461 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,462 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,463 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,464 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,465 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,466 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,470 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,470 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:24,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,471 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:24,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,474 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-20 04:48:24,475 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 55 disjoint index pairs (out of 91 index pairs), introduced 11 new quantified variables, introduced 0 case distinctions, treesize of input 127 treesize of output 51 [2022-02-20 04:48:24,539 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:48:24,539 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:48:26,535 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,536 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,538 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,539 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,540 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,541 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,542 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,545 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:26,547 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-20 04:48:31,442 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-02-20 04:48:31,443 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 36 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 195 case distinctions, treesize of input 110 treesize of output 1393 Received shutdown request... [2022-02-20 04:54:53,510 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 [2022-02-20 04:54:53,535 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-20 04:54:53,537 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-20 04:54:53,541 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 [2022-02-20 04:54:53,547 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:54:53,553 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-20 04:54:53,738 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-20 04:54:53,738 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 22ms.. [2022-02-20 04:54:53,740 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-20 04:54:53,740 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-20 04:54:53,740 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-20 04:54:53,744 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-02-20 04:54:53,746 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:54:53,746 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:54:53,747 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:54:53 BasicIcfg [2022-02-20 04:54:53,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:54:53,748 INFO L158 Benchmark]: Toolchain (without parser) took 832601.21ms. Allocated memory was 172.0MB in the beginning and 621.8MB in the end (delta: 449.8MB). Free memory was 139.0MB in the beginning and 280.7MB in the end (delta: -141.7MB). Peak memory consumption was 420.0MB. Max. memory is 8.0GB. [2022-02-20 04:54:53,748 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 140.3MB in the end (delta: 71.3kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:54:53,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.68ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 137.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:54:53,748 INFO L158 Benchmark]: Boogie Preprocessor took 21.81ms. Allocated memory is still 172.0MB. Free memory was 137.6MB in the beginning and 136.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:54:53,749 INFO L158 Benchmark]: RCFGBuilder took 230.26ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 127.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-02-20 04:54:53,749 INFO L158 Benchmark]: TraceAbstraction took 832311.18ms. Allocated memory was 172.0MB in the beginning and 621.8MB in the end (delta: 449.8MB). Free memory was 126.6MB in the beginning and 280.7MB in the end (delta: -154.1MB). Peak memory consumption was 408.5MB. Max. memory is 8.0GB. [2022-02-20 04:54:53,750 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 0.13ms. Allocated memory is still 172.0MB. Free memory was 140.3MB in the beginning and 140.3MB in the end (delta: 71.3kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.68ms. Allocated memory is still 172.0MB. Free memory was 139.0MB in the beginning and 137.6MB in the end (delta: 1.4MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.81ms. Allocated memory is still 172.0MB. Free memory was 137.6MB in the beginning and 136.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 230.26ms. Allocated memory is still 172.0MB. Free memory was 136.5MB in the beginning and 127.1MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 832311.18ms. Allocated memory was 172.0MB in the beginning and 621.8MB in the end (delta: 449.8MB). Free memory was 126.6MB in the beginning and 280.7MB in the end (delta: -154.1MB). Peak memory consumption was 408.5MB. 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: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 22ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 22ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 22ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 22ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 832.2s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 34.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 616, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 402.3s InterpolantComputationTime, 792 NumberOfCodeBlocks, 792 NumberOfCodeBlocksAsserted, 48 NumberOfCheckSat, 1161 ConstructedInterpolants, 22 QuantifiedInterpolants, 18436 SizeOfPredicates, 83 NumberOfNonLiveVariables, 1017 ConjunctsInSsa, 251 ConjunctsInUnsatCore, 27 InterpolantComputations, 0 PerfectInterpolantSequences, 871/2193 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