/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-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-04 06:35:07,855 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-04 06:35:07,857 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-04 06:35:07,901 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-03-04 06:35:07,915 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-04 06:35:07,916 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-04 06:35:07,917 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-04 06:35:07,918 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-04 06:35:07,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-04 06:35:07,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-04 06:35:07,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-04 06:35:07,922 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-04 06:35:07,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-04 06:35:07,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-04 06:35:07,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-04 06:35:07,936 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-04 06:35:07,942 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-04 06:35:07,948 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-04 06:35:07,949 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-04 06:35:07,949 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-04 06:35:07,954 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-NoForkJoinOpt.epf [2022-03-04 06:35:07,988 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-04 06:35:07,988 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-04 06:35:07,988 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-04 06:35:07,988 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-04 06:35:07,989 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-04 06:35:07,989 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-04 06:35:07,990 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-04 06:35:07,990 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-04 06:35:07,990 INFO L138 SettingsManager]: * Use SBE=true [2022-03-04 06:35:07,990 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-04 06:35:07,991 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-04 06:35:07,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-04 06:35:07,991 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-04 06:35:07,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-04 06:35:07,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-04 06:35:07,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:35:07,993 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-04 06:35:07,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-04 06:35:07,994 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-04 06:35:07,995 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-04 06:35:08,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-04 06:35:08,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-04 06:35:08,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-04 06:35:08,222 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-04 06:35:08,223 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-04 06:35:08,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl [2022-03-04 06:35:08,224 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-array-hom.wvr.bpl' [2022-03-04 06:35:08,243 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-04 06:35:08,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-04 06:35:08,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-04 06:35:08,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-04 06:35:08,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-04 06:35:08,265 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,276 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-04 06:35:08,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-04 06:35:08,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-04 06:35:08,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-04 06:35:08,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-04 06:35:08,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,287 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,287 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-04 06:35:08,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-04 06:35:08,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-04 06:35:08,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-04 06:35:08,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/1) ... [2022-03-04 06:35:08,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-04 06:35:08,310 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:08,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-04 06:35:08,341 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-04 06:35:08,358 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-04 06:35:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-04 06:35:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-04 06:35:08,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-04 06:35:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-04 06:35:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-04 06:35:08,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-04 06:35:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-04 06:35:08,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-04 06:35:08,359 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-04 06:35:08,359 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-04 06:35:08,360 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-04 06:35:08,360 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-04 06:35:08,402 INFO L234 CfgBuilder]: Building ICFG [2022-03-04 06:35:08,404 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-04 06:35:08,525 INFO L275 CfgBuilder]: Performing block encoding [2022-03-04 06:35:08,538 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-04 06:35:08,538 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-04 06:35:08,540 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:35:08 BoogieIcfgContainer [2022-03-04 06:35:08,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-04 06:35:08,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-04 06:35:08,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-04 06:35:08,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-04 06:35:08,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 04.03 06:35:08" (1/2) ... [2022-03-04 06:35:08,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248baeb and model type sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 06:35:08, skipping insertion in model container [2022-03-04 06:35:08,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.03 06:35:08" (2/2) ... [2022-03-04 06:35:08,550 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-array-hom.wvr.bpl [2022-03-04 06:35:08,558 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-04 06:35:08,559 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-04 06:35:08,559 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-04 06:35:08,559 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-04 06:35:08,619 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-04 06:35:08,656 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-04 06:35:08,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:08,658 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-04 06:35:08,659 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-04 06:35:08,682 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-04 06:35:08,688 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=false, mMcrOverapproximateWrwc=true [2022-03-04 06:35:08,688 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-04 06:35:08,788 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-04 06:35:08,790 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:35:08,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:35:08,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-04 06:35:08,800 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:35:08,800 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [166579682] [2022-03-04 06:35:08,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:08,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:35:08,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:09,023 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-04 06:35:09,023 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:35:09,023 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [166579682] [2022-03-04 06:35:09,024 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [166579682] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:35:09,024 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1398637765] [2022-03-04 06:35:09,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:09,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:09,025 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:09,027 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:35:09,082 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-04 06:35:09,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:09,125 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-04 06:35:09,129 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:35:09,383 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:35:09,384 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:35:09,601 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:35:09,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1398637765] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:35:09,601 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:35:09,602 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-04 06:35:09,604 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209251819] [2022-03-04 06:35:09,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:35:09,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-04 06:35:09,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:35:09,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-04 06:35:09,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-04 06:35:09,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:09,638 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:35:09,640 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) [2022-03-04 06:35:09,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:10,175 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-04 06:35:10,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:10,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-04 06:35:10,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-04 06:35:10,389 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:35:10,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:35:10,389 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-04 06:35:10,390 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:35:10,390 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717881906] [2022-03-04 06:35:10,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:10,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:35:10,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:10,520 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:10,520 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:35:10,521 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717881906] [2022-03-04 06:35:10,521 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717881906] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:35:10,522 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [512975646] [2022-03-04 06:35:10,522 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:35:10,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:10,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:10,528 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:35:10,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-04 06:35:10,585 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:35:10,585 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:35:10,586 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-04 06:35:10,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:35:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:10,778 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:35:10,970 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:10,970 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [512975646] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:35:10,970 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:35:10,970 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-04 06:35:10,971 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056652352] [2022-03-04 06:35:10,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:35:10,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-04 06:35:10,972 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:35:10,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-04 06:35:10,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-04 06:35:10,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:10,973 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:35:10,974 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) [2022-03-04 06:35:10,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:10,974 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:11,348 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-04 06:35:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:11,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:35:11,373 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-04 06:35:11,549 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:11,549 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:35:11,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:35:11,550 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-04 06:35:11,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:35:11,550 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493378672] [2022-03-04 06:35:11,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:11,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:35:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:12,151 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:12,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:35:12,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493378672] [2022-03-04 06:35:12,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493378672] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:35:12,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251211928] [2022-03-04 06:35:12,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:35:12,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:12,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:12,154 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:35:12,180 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-04 06:35:12,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-04 06:35:12,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:35:12,199 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-04 06:35:12,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:35:12,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:12,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:12,939 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:35:12,941 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 [2022-03-04 06:35:13,195 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:13,195 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:35:13,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,933 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:13,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,935 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,936 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,937 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:13,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:14,002 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-04 06:35:14,003 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 [2022-03-04 06:35:14,165 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,168 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,169 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,170 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,171 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:14,171 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,172 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,173 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:14,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:14,174 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:14,175 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 [2022-03-04 06:35:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:14,325 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251211928] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:35:14,325 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:35:14,325 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-04 06:35:14,325 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877680783] [2022-03-04 06:35:14,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:35:14,326 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-04 06:35:14,326 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:35:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-04 06:35:14,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-04 06:35:14,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:14,327 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:35:14,328 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) [2022-03-04 06:35:14,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:14,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:35:14,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:23,191 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-04 06:35:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:35:23,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:35:23,207 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-04 06:35:23,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:23,392 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:35:23,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:35:23,393 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-04 06:35:23,393 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:35:23,393 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1489297537] [2022-03-04 06:35:23,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:23,394 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:35:23,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:23,942 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:23,942 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:35:23,942 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1489297537] [2022-03-04 06:35:23,943 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1489297537] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:35:23,943 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1236672967] [2022-03-04 06:35:23,943 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:35:23,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:23,943 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:23,950 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-04 06:35:23,952 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-04 06:35:23,997 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:35:23,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:35:23,999 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-04 06:35:24,000 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:35:24,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:24,865 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:24,866 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:24,866 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:24,867 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:24,868 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 [2022-03-04 06:35:24,915 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:24,915 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:35:25,643 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:25,644 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:25,646 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:25,993 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-04 06:35:25,994 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 [2022-03-04 06:35:40,423 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,424 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,426 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,427 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,428 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,429 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,430 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,431 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,432 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,433 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,434 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,435 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,436 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,437 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,438 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,440 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,442 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,446 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,447 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:40,481 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:35:40,481 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 [2022-03-04 06:35:40,926 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:40,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1236672967] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:35:40,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:35:40,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-04 06:35:40,927 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2061267604] [2022-03-04 06:35:40,927 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:35:40,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-04 06:35:40,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:35:40,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-04 06:35:40,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-04 06:35:40,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:40,929 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:35:40,929 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) [2022-03-04 06:35:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:35:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:35:40,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:35:50,241 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-04 06:35:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:35:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:35:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:35:50,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:35:50,257 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-04 06:35:50,442 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:50,442 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:35:50,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:35:50,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-04 06:35:50,443 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:35:50,443 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1918887815] [2022-03-04 06:35:50,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:35:50,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:35:50,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:35:51,016 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:51,016 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:35:51,016 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1918887815] [2022-03-04 06:35:51,017 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1918887815] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:35:51,017 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [939575104] [2022-03-04 06:35:51,017 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-04 06:35:51,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:35:51,017 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:35:51,019 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) [2022-03-04 06:35:51,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-04 06:35:51,056 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-04 06:35:51,056 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:35:51,058 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-04 06:35:51,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:35:52,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:52,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:52,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:35:52,314 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-04 06:35:52,315 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 [2022-03-04 06:35:52,371 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:35:52,371 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:35:53,698 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,699 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,704 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,705 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,706 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,710 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,714 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,726 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:53,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:35:54,122 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-04 06:35:54,123 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 [2022-03-04 06:41:43,925 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:43,926 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [939575104] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:41:43,926 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:41:43,926 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-04 06:41:43,926 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152050969] [2022-03-04 06:41:43,926 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:41:43,927 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-04 06:41:43,927 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:41:43,927 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-04 06:41:43,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-04 06:41:43,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:43,928 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:41:43,929 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) [2022-03-04 06:41:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:43,929 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:51,931 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-04 06:41:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:51,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:51,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:41:51,959 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-04 06:41:52,151 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 [2022-03-04 06:41:52,151 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:41:52,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:41:52,152 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-04 06:41:52,152 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:41:52,152 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1827110031] [2022-03-04 06:41:52,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:41:52,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:41:52,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:41:52,333 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:52,333 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:41:52,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1827110031] [2022-03-04 06:41:52,333 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1827110031] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:41:52,333 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494719548] [2022-03-04 06:41:52,334 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-04 06:41:52,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:41:52,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:41:52,335 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) [2022-03-04 06:41:52,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-04 06:41:52,369 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-04 06:41:52,370 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:41:52,370 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-04 06:41:52,371 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:41:52,684 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:52,684 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:41:53,063 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:53,064 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494719548] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:41:53,064 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:41:53,064 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-04 06:41:53,064 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904667345] [2022-03-04 06:41:53,064 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:41:53,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-04 06:41:53,065 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:41:53,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-04 06:41:53,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-04 06:41:53,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:53,067 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:41:53,067 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) [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:41:53,067 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:54,436 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-04 06:41:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:54,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:41:54,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-04 06:41:54,455 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-04 06:41:54,637 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 [2022-03-04 06:41:54,637 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:41:54,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:41:54,638 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-04 06:41:54,638 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:41:54,638 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288061300] [2022-03-04 06:41:54,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:41:54,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:41:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:41:54,856 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:54,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:41:54,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288061300] [2022-03-04 06:41:54,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288061300] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:41:54,857 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1461585644] [2022-03-04 06:41:54,857 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-04 06:41:54,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:41:54,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:41:54,858 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) [2022-03-04 06:41:54,859 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-04 06:41:54,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:41:54,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-04 06:41:54,896 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:41:55,256 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 06:41:55,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:41:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-04 06:41:55,566 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1461585644] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:41:55,567 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:41:55,567 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-04 06:41:55,567 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250114479] [2022-03-04 06:41:55,567 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:41:55,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-04 06:41:55,568 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:41:55,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-04 06:41:55,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-04 06:41:55,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:55,569 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:41:55,569 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) [2022-03-04 06:41:55,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:55,569 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:55,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:55,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:55,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-04 06:41:55,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-04 06:41:55,570 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:41:59,503 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:41:59,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:41:59,520 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-04 06:41:59,704 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 [2022-03-04 06:41:59,705 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:41:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:41:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-04 06:41:59,706 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:41:59,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1907727887] [2022-03-04 06:41:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:41:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:41:59,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:41:59,932 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:41:59,933 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:41:59,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1907727887] [2022-03-04 06:41:59,933 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1907727887] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:41:59,933 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021573827] [2022-03-04 06:41:59,933 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-04 06:41:59,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:41:59,933 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:41:59,936 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) [2022-03-04 06:41:59,936 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-04 06:41:59,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-04 06:41:59,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:41:59,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-04 06:41:59,968 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:42:00,368 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:42:00,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:42:00,680 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-04 06:42:00,681 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021573827] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:42:00,681 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:42:00,681 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-04 06:42:00,681 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1041898769] [2022-03-04 06:42:00,681 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:42:00,681 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-04 06:42:00,682 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:42:00,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-04 06:42:00,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-04 06:42:00,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:42:00,683 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:42:00,683 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) [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:42:00,684 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:42:01,641 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-04 06:42:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:42:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:42:01,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:42:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:42:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:42:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:42:01,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:42:01,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:42:01,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-04 06:42:01,844 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 [2022-03-04 06:42:01,845 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:42:01,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:42:01,845 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-04 06:42:01,845 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:42:01,845 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638901755] [2022-03-04 06:42:01,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:42:01,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:42:01,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:42:02,121 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:42:02,122 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:42:02,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638901755] [2022-03-04 06:42:02,122 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638901755] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:42:02,122 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [626084154] [2022-03-04 06:42:02,122 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-04 06:42:02,122 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:42:02,122 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:42:02,124 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) [2022-03-04 06:42:02,147 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-04 06:42:02,179 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-04 06:42:02,179 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:42:02,180 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-04 06:42:02,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:42:02,684 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:42:02,685 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:42:03,257 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:42:03,258 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [626084154] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-04 06:42:03,258 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-04 06:42:03,258 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-04 06:42:03,258 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725106100] [2022-03-04 06:42:03,258 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-04 06:42:03,258 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-04 06:42:03,258 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-04 06:42:03,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-04 06:42:03,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-04 06:42:03,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:42:03,260 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-04 06:42:03,260 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) [2022-03-04 06:42:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:42:03,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:42:03,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-04 06:42:03,976 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-04 06:42:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-04 06:42:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-04 06:42:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-04 06:42:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-04 06:42:03,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-04 06:42:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-04 06:42:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-04 06:42:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-04 06:42:03,977 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-04 06:42:03,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-04 06:42:04,177 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 [2022-03-04 06:42:04,178 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-04 06:42:04,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-04 06:42:04,178 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-04 06:42:04,178 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-04 06:42:04,178 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041189200] [2022-03-04 06:42:04,178 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-04 06:42:04,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-04 06:42:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-04 06:42:05,333 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:42:05,334 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-04 06:42:05,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041189200] [2022-03-04 06:42:05,334 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041189200] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-04 06:42:05,334 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108623755] [2022-03-04 06:42:05,334 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-04 06:42:05,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-04 06:42:05,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-04 06:42:05,335 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) [2022-03-04 06:42:05,336 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-04 06:42:05,374 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-04 06:42:05,375 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-04 06:42:05,376 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-04 06:42:05,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-04 06:42:07,540 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,542 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,544 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:07,544 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,548 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,553 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,555 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,556 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,557 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,558 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,559 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,560 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,567 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:07,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,568 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:07,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-04 06:42:07,572 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 [2022-03-04 06:42:07,631 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-04 06:42:07,631 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-04 06:42:09,613 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,614 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,615 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,616 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,617 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,618 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,619 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,620 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,621 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,622 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,623 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:09,624 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-04 06:42:14,487 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-04 06:42:14,488 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... [2022-03-04 06:48:59,902 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 [2022-03-04 06:48:59,902 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:48:59,905 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-04 06:48:59,907 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-04 06:48:59,923 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-04 06:48:59,932 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-04 06:49:00,108 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 [2022-03-04 06:49:00,108 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 24 for 21ms.. [2022-03-04 06:49:00,109 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-04 06:49:00,110 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-04 06:49:00,110 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-04 06:49:00,114 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-04 06:49:00,116 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-04 06:49:00,116 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-04 06:49:00,117 INFO L202 PluginConnector]: Adding new model sum-array-hom.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.03 06:49:00 BasicIcfg [2022-03-04 06:49:00,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-04 06:49:00,118 INFO L158 Benchmark]: Toolchain (without parser) took 831873.43ms. Allocated memory was 194.0MB in the beginning and 602.9MB in the end (delta: 408.9MB). Free memory was 151.4MB in the beginning and 325.1MB in the end (delta: -173.7MB). Peak memory consumption was 409.7MB. Max. memory is 8.0GB. [2022-03-04 06:49:00,118 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 194.0MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-04 06:49:00,118 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.60ms. Allocated memory is still 194.0MB. Free memory was 151.3MB in the beginning and 149.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-04 06:49:00,119 INFO L158 Benchmark]: Boogie Preprocessor took 14.07ms. Allocated memory is still 194.0MB. Free memory was 149.8MB in the beginning and 148.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-04 06:49:00,119 INFO L158 Benchmark]: RCFGBuilder took 246.88ms. Allocated memory is still 194.0MB. Free memory was 148.8MB in the beginning and 139.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-04 06:49:00,119 INFO L158 Benchmark]: TraceAbstraction took 831576.46ms. Allocated memory was 194.0MB in the beginning and 602.9MB in the end (delta: 408.9MB). Free memory was 139.0MB in the beginning and 325.1MB in the end (delta: -186.1MB). Peak memory consumption was 396.1MB. Max. memory is 8.0GB. [2022-03-04 06:49:00,121 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 0.10ms. Allocated memory is still 194.0MB. Free memory is still 152.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.60ms. Allocated memory is still 194.0MB. Free memory was 151.3MB in the beginning and 149.8MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 14.07ms. Allocated memory is still 194.0MB. Free memory was 149.8MB in the beginning and 148.8MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 246.88ms. Allocated memory is still 194.0MB. Free memory was 148.8MB in the beginning and 139.5MB in the end (delta: 9.3MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 831576.46ms. Allocated memory was 194.0MB in the beginning and 602.9MB in the end (delta: 408.9MB). Free memory was 139.0MB in the beginning and 325.1MB in the end (delta: -186.1MB). Peak memory consumption was 396.1MB. 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 24 for 21ms.. - 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 24 for 21ms.. - 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 24 for 21ms.. - 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 24 for 21ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 831.5s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 34.2s, 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, 378.7s 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