/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-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 07:16:58,299 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 07:16:58,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 07:16:58,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 07:16:58,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 07:16:58,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 07:16:58,374 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 07:16:58,376 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 07:16:58,377 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 07:16:58,378 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 07:16:58,378 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 07:16:58,379 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 07:16:58,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 07:16:58,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 07:16:58,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 07:16:58,381 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 07:16:58,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 07:16:58,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 07:16:58,383 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 07:16:58,384 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 07:16:58,385 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 07:16:58,391 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 07:16:58,394 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 07:16:58,395 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 07:16:58,400 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 07:16:58,404 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 07:16:58,405 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 07:16:58,405 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 07:16:58,408 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-wrwc.epf [2022-03-16 07:16:58,434 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 07:16:58,434 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 07:16:58,435 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 07:16:58,435 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 07:16:58,435 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 07:16:58,435 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 07:16:58,436 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 07:16:58,436 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 07:16:58,436 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 07:16:58,436 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 07:16:58,437 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 07:16:58,438 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:16:58,438 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 07:16:58,438 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 07:16:58,439 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 07:16:58,440 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 07:16:58,440 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 07:16:58,440 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 07:16:58,643 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 07:16:58,658 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 07:16:58,660 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 07:16:58,661 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 07:16:58,664 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 07:16:58,665 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl [2022-03-16 07:16:58,665 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/sum-fun.wvr.bpl' [2022-03-16 07:16:58,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 07:16:58,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 07:16:58,689 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 07:16:58,689 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 07:16:58,689 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 07:16:58,698 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,703 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,708 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 07:16:58,709 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 07:16:58,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 07:16:58,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 07:16:58,712 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 07:16:58,717 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,717 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,719 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,719 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,722 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,725 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,726 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,727 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 07:16:58,728 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 07:16:58,728 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 07:16:58,728 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 07:16:58,729 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/1) ... [2022-03-16 07:16:58,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 07:16:58,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:16:58,752 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) [2022-03-16 07:16:58,770 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 [2022-03-16 07:16:58,793 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 07:16:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 07:16:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 07:16:58,793 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 07:16:58,793 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 07:16:58,793 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 07:16:58,794 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 07:16:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 07:16:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 07:16:58,794 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 07:16:58,794 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 07:16:58,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 07:16:58,794 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 07:16:58,828 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 07:16:58,829 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 07:16:58,915 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 07:16:58,924 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 07:16:58,924 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 07:16:58,925 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:16:58 BoogieIcfgContainer [2022-03-16 07:16:58,926 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 07:16:58,927 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 07:16:58,927 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 07:16:58,930 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 07:16:58,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 07:16:58" (1/2) ... [2022-03-16 07:16:58,930 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bdbdd85 and model type sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 07:16:58, skipping insertion in model container [2022-03-16 07:16:58,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 07:16:58" (2/2) ... [2022-03-16 07:16:58,931 INFO L111 eAbstractionObserver]: Analyzing ICFG sum-fun.wvr.bpl [2022-03-16 07:16:58,934 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 07:16:58,934 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 07:16:58,934 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 07:16:58,934 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 07:16:58,956 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 07:16:58,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 07:16:58,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:16:59,012 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) [2022-03-16 07:16:59,033 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 [2022-03-16 07:16:59,043 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 07:16:59,053 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=false [2022-03-16 07:16:59,053 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 07:16:59,257 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 590 transitions and produced 262 states. [2022-03-16 07:16:59,265 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:16:59,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:16:59,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1731617998, now seen corresponding path program 1 times [2022-03-16 07:16:59,276 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:16:59,276 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937748507] [2022-03-16 07:16:59,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:16:59,277 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:16:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:16:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-16 07:16:59,482 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:16:59,482 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937748507] [2022-03-16 07:16:59,483 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937748507] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:16:59,483 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986922425] [2022-03-16 07:16:59,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:16:59,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:16:59,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:16:59,487 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) [2022-03-16 07:16:59,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 07:16:59,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:16:59,590 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 7 conjunts are in the unsatisfiable core [2022-03-16 07:16:59,593 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:16:59,855 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:16:59,855 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:17:00,039 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:17:00,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986922425] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:17:00,039 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:17:00,040 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 18 [2022-03-16 07:17:00,042 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69557267] [2022-03-16 07:17:00,043 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:17:00,047 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-03-16 07:17:00,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:17:00,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-03-16 07:17:00,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-03-16 07:17:00,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:00,067 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:17:00,067 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) [2022-03-16 07:17:00,068 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:00,510 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 601 transitions and produced 273 states. [2022-03-16 07:17:00,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:00,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 07:17:00,730 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 [2022-03-16 07:17:00,730 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:17:00,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:17:00,731 INFO L85 PathProgramCache]: Analyzing trace with hash -1007173588, now seen corresponding path program 2 times [2022-03-16 07:17:00,731 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:17:00,731 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980703067] [2022-03-16 07:17:00,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:17:00,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:17:00,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:17:00,849 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:00,850 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:17:00,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980703067] [2022-03-16 07:17:00,851 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980703067] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:17:00,851 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [733324766] [2022-03-16 07:17:00,851 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:17:00,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:17:00,852 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:17:00,853 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) [2022-03-16 07:17:00,894 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 07:17:00,912 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:17:00,912 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:17:00,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 10 conjunts are in the unsatisfiable core [2022-03-16 07:17:00,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:17:01,064 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:01,064 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:17:01,231 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:01,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [733324766] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:17:01,231 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:17:01,231 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 24 [2022-03-16 07:17:01,231 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419663727] [2022-03-16 07:17:01,231 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:17:01,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-03-16 07:17:01,232 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:17:01,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-03-16 07:17:01,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2022-03-16 07:17:01,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:01,233 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:17:01,233 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) [2022-03-16 07:17:01,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:01,234 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:01,554 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 204 transitions and produced 152 states. [2022-03-16 07:17:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:01,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:17:01,573 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 07:17:01,770 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 [2022-03-16 07:17:01,771 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:17:01,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:17:01,771 INFO L85 PathProgramCache]: Analyzing trace with hash -170935286, now seen corresponding path program 3 times [2022-03-16 07:17:01,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:17:01,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458700305] [2022-03-16 07:17:01,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:17:01,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:17:01,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:17:02,238 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:02,239 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:17:02,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458700305] [2022-03-16 07:17:02,239 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1458700305] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:17:02,239 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [255497703] [2022-03-16 07:17:02,239 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:17:02,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:17:02,240 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:17:02,255 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) [2022-03-16 07:17:02,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 07:17:02,345 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-03-16 07:17:02,345 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:17:02,346 WARN L261 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 45 conjunts are in the unsatisfiable core [2022-03-16 07:17:02,348 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:17:02,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:02,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:02,965 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:17:02,965 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 [2022-03-16 07:17:03,138 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:03,138 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:17:03,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:03,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,744 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:03,788 INFO L353 Elim1Store]: treesize reduction 20, result has 78.9 percent of original size [2022-03-16 07:17:03,789 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 [2022-03-16 07:17:03,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,899 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:03,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,903 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:03,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:03,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:03,906 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 [2022-03-16 07:17:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:04,018 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [255497703] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:17:04,018 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:17:04,018 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 38 [2022-03-16 07:17:04,019 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650589163] [2022-03-16 07:17:04,019 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:17:04,019 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-03-16 07:17:04,019 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:17:04,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-03-16 07:17:04,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=124, Invalid=1282, Unknown=0, NotChecked=0, Total=1406 [2022-03-16 07:17:04,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:04,020 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:17:04,020 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) [2022-03-16 07:17:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:17:04,020 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:12,200 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 455 transitions and produced 264 states. [2022-03-16 07:17:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:12,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:17:12,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:17:12,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 07:17:12,401 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 [2022-03-16 07:17:12,403 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:17:12,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:17:12,403 INFO L85 PathProgramCache]: Analyzing trace with hash 136490182, now seen corresponding path program 4 times [2022-03-16 07:17:12,403 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:17:12,403 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097769742] [2022-03-16 07:17:12,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:17:12,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:17:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:17:12,909 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:12,910 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:17:12,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097769742] [2022-03-16 07:17:12,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097769742] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:17:12,910 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [741309736] [2022-03-16 07:17:12,910 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:17:12,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:17:12,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:17:12,912 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) [2022-03-16 07:17:12,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 07:17:13,004 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:17:13,005 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:17:13,008 WARN L261 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 50 conjunts are in the unsatisfiable core [2022-03-16 07:17:13,011 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:17:13,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:13,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:13,671 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:13,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:13,672 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:13,673 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 [2022-03-16 07:17:13,721 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:13,721 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:17:14,284 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:14,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:14,285 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:14,667 INFO L353 Elim1Store]: treesize reduction 158, result has 65.3 percent of original size [2022-03-16 07:17:14,668 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 [2022-03-16 07:17:29,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,721 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,722 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,723 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,724 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,725 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,727 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,728 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,729 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,730 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,731 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,732 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,733 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,734 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,735 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,736 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,738 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,741 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,742 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,743 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:29,795 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:17:29,796 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 [2022-03-16 07:17:30,211 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:30,212 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [741309736] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:17:30,212 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:17:30,212 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 43 [2022-03-16 07:17:30,212 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110911626] [2022-03-16 07:17:30,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:17:30,212 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2022-03-16 07:17:30,212 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:17:30,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2022-03-16 07:17:30,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1666, Unknown=0, NotChecked=0, Total=1806 [2022-03-16 07:17:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:30,213 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:17:30,214 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) [2022-03-16 07:17:30,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:30,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:17:30,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:17:30,214 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:17:39,085 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 509 transitions and produced 300 states. [2022-03-16 07:17:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:17:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:17:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:17:39,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:17:39,103 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 07:17:39,301 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 [2022-03-16 07:17:39,302 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:17:39,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:17:39,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1662599294, now seen corresponding path program 5 times [2022-03-16 07:17:39,302 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:17:39,302 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [181991038] [2022-03-16 07:17:39,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:17:39,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:17:39,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:17:39,849 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:39,849 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:17:39,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [181991038] [2022-03-16 07:17:39,850 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [181991038] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:17:39,850 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [957034760] [2022-03-16 07:17:39,850 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 07:17:39,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:17:39,850 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:17:39,852 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) [2022-03-16 07:17:39,853 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 07:17:39,888 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 7 check-sat command(s) [2022-03-16 07:17:39,888 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:17:39,889 WARN L261 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 57 conjunts are in the unsatisfiable core [2022-03-16 07:17:39,890 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:17:40,952 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:40,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:40,954 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:17:40,995 INFO L353 Elim1Store]: treesize reduction 216, result has 3.1 percent of original size [2022-03-16 07:17:40,995 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 [2022-03-16 07:17:41,045 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:17:41,045 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:17:42,301 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,303 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,307 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,309 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,310 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,314 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,318 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,326 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,330 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,334 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:17:42,727 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 07:17:42,728 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 [2022-03-16 07:24:29,690 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:29,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [957034760] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:29,691 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:29,691 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 51 [2022-03-16 07:24:29,691 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703845623] [2022-03-16 07:24:29,691 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:29,692 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-03-16 07:24:29,692 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:29,692 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-03-16 07:24:29,699 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=192, Invalid=2358, Unknown=0, NotChecked=0, Total=2550 [2022-03-16 07:24:29,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:29,699 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:29,700 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) [2022-03-16 07:24:29,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:29,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:29,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:29,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:29,700 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:37,225 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 199 transitions and produced 183 states. [2022-03-16 07:24:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:37,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:37,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:24:37,243 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 07:24:37,426 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 [2022-03-16 07:24:37,427 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:24:37,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:24:37,427 INFO L85 PathProgramCache]: Analyzing trace with hash 2079005886, now seen corresponding path program 6 times [2022-03-16 07:24:37,427 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:24:37,427 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423851120] [2022-03-16 07:24:37,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:24:37,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:24:37,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:37,573 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 36 proven. 48 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:37,573 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:24:37,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423851120] [2022-03-16 07:24:37,573 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1423851120] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:24:37,573 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1239662552] [2022-03-16 07:24:37,573 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 07:24:37,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:24:37,574 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:24:37,575 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) [2022-03-16 07:24:37,576 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 07:24:37,609 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 9 check-sat command(s) [2022-03-16 07:24:37,610 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:24:37,610 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-16 07:24:37,612 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:24:37,919 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:37,919 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:38,244 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 49 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:38,244 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1239662552] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:38,244 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:38,244 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 19] total 48 [2022-03-16 07:24:38,245 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194314644] [2022-03-16 07:24:38,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:38,245 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 48 states [2022-03-16 07:24:38,245 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:38,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 48 interpolants. [2022-03-16 07:24:38,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=406, Invalid=1850, Unknown=0, NotChecked=0, Total=2256 [2022-03-16 07:24:38,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:38,246 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:38,246 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) [2022-03-16 07:24:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:38,246 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:38,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:38,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:24:38,247 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:39,506 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 247 transitions and produced 232 states. [2022-03-16 07:24:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:39,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:24:39,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-03-16 07:24:39,528 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 07:24:39,728 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 [2022-03-16 07:24:39,728 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:24:39,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:24:39,729 INFO L85 PathProgramCache]: Analyzing trace with hash -713231340, now seen corresponding path program 7 times [2022-03-16 07:24:39,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:24:39,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988927244] [2022-03-16 07:24:39,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:24:39,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:24:39,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:39,920 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 68 proven. 81 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:39,921 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:24:39,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [988927244] [2022-03-16 07:24:39,921 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [988927244] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:24:39,921 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [180067052] [2022-03-16 07:24:39,921 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 07:24:39,921 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:24:39,921 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:24:39,944 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) [2022-03-16 07:24:39,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 07:24:39,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:39,974 INFO L263 TraceCheckSpWp]: Trace formula consists of 143 conjuncts, 19 conjunts are in the unsatisfiable core [2022-03-16 07:24:39,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:24:40,342 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 07:24:40,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:40,628 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 79 proven. 64 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 07:24:40,628 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [180067052] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:40,628 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:40,628 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 20, 20] total 50 [2022-03-16 07:24:40,628 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106314548] [2022-03-16 07:24:40,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:40,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-03-16 07:24:40,629 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:40,629 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-03-16 07:24:40,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=2053, Unknown=0, NotChecked=0, Total=2450 [2022-03-16 07:24:40,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:40,630 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:40,630 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) [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 61 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 66 states. [2022-03-16 07:24:40,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:44,002 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2333 transitions and produced 950 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:24:44,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:24:44,033 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 07:24:44,220 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 [2022-03-16 07:24:44,220 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:24:44,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:24:44,220 INFO L85 PathProgramCache]: Analyzing trace with hash -1346980366, now seen corresponding path program 8 times [2022-03-16 07:24:44,220 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:24:44,220 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150835493] [2022-03-16 07:24:44,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:24:44,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:24:44,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:44,431 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 68 proven. 98 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:44,432 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:24:44,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150835493] [2022-03-16 07:24:44,432 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150835493] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:24:44,432 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [276203593] [2022-03-16 07:24:44,432 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 07:24:44,432 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:24:44,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:24:44,452 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) [2022-03-16 07:24:44,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 07:24:44,537 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 07:24:44,538 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:24:44,538 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 21 conjunts are in the unsatisfiable core [2022-03-16 07:24:44,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:24:44,951 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:24:44,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:45,178 INFO L134 CoverageAnalysis]: Checked inductivity of 166 backedges. 81 proven. 81 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-16 07:24:45,178 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [276203593] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:45,178 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:45,178 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 22, 22] total 54 [2022-03-16 07:24:45,180 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259382337] [2022-03-16 07:24:45,180 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:45,180 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2022-03-16 07:24:45,181 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:45,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2022-03-16 07:24:45,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=469, Invalid=2393, Unknown=0, NotChecked=0, Total=2862 [2022-03-16 07:24:45,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:45,182 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:45,182 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) [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:24:45,182 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:45,925 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2344 transitions and produced 961 states. [2022-03-16 07:24:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:45,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:24:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:24:45,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:24:45,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:24:45,961 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 07:24:46,144 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 [2022-03-16 07:24:46,146 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:24:46,146 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:24:46,146 INFO L85 PathProgramCache]: Analyzing trace with hash -494438320, now seen corresponding path program 9 times [2022-03-16 07:24:46,146 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:24:46,146 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656427834] [2022-03-16 07:24:46,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:24:46,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:24:46,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:46,322 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:46,322 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:24:46,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [656427834] [2022-03-16 07:24:46,322 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [656427834] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:24:46,322 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1713047606] [2022-03-16 07:24:46,322 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 07:24:46,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:24:46,322 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:24:46,323 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) [2022-03-16 07:24:46,328 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 07:24:46,362 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-03-16 07:24:46,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:24:46,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 24 conjunts are in the unsatisfiable core [2022-03-16 07:24:46,364 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:24:46,773 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 68 proven. 117 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:46,773 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:47,343 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 85 proven. 100 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:47,343 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1713047606] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 07:24:47,344 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 07:24:47,344 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 66 [2022-03-16 07:24:47,344 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704840553] [2022-03-16 07:24:47,344 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 07:24:47,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-03-16 07:24:47,344 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 07:24:47,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-03-16 07:24:47,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=768, Invalid=3522, Unknown=0, NotChecked=0, Total=4290 [2022-03-16 07:24:47,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:47,346 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 07:24:47,346 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) [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:24:47,346 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 07:24:48,101 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 452 transitions and produced 340 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 82 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 102 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 181 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-03-16 07:24:48,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2022-03-16 07:24:48,125 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-16 07:24:48,314 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 [2022-03-16 07:24:48,315 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 07:24:48,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 07:24:48,315 INFO L85 PathProgramCache]: Analyzing trace with hash -1540285650, now seen corresponding path program 10 times [2022-03-16 07:24:48,315 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 07:24:48,315 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246232400] [2022-03-16 07:24:48,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 07:24:48,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 07:24:48,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 07:24:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:49,431 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 07:24:49,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246232400] [2022-03-16 07:24:49,431 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246232400] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 07:24:49,431 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368234587] [2022-03-16 07:24:49,431 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 07:24:49,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 07:24:49,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 07:24:49,433 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) [2022-03-16 07:24:49,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 07:24:49,466 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 07:24:49,467 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 07:24:49,468 WARN L261 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 98 conjunts are in the unsatisfiable core [2022-03-16 07:24:49,469 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 07:24:51,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,674 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,684 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,693 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:51,694 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,694 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,695 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,696 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 07:24:51,698 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 [2022-03-16 07:24:51,745 INFO L134 CoverageAnalysis]: Checked inductivity of 206 backedges. 0 proven. 206 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 07:24:51,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 07:24:53,679 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,680 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,681 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,682 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,683 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,684 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,685 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,686 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,687 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,688 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,689 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:53,690 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 07:24:58,614 INFO L353 Elim1Store]: treesize reduction 866, result has 61.2 percent of original size [2022-03-16 07:24:58,615 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... [2022-03-16 07:31:19,759 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-03-16 07:31:19,760 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 07:31:19,762 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 [2022-03-16 07:31:19,767 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 [2022-03-16 07:31:19,767 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 [2022-03-16 07:31:19,779 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 07:31:19,977 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 [2022-03-16 07:31:19,977 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. [2022-03-16 07:31:19,978 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 07:31:19,979 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 07:31:19,979 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 07:31:19,983 INFO L732 BasicCegarLoop]: Path program histogram: [10] [2022-03-16 07:31:20,000 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 07:31:20,000 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 07:31:20,007 INFO L202 PluginConnector]: Adding new model sum-fun.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 07:31:20 BasicIcfg [2022-03-16 07:31:20,008 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 07:31:20,008 INFO L158 Benchmark]: Toolchain (without parser) took 861320.14ms. Allocated memory was 180.4MB in the beginning and 671.1MB in the end (delta: 490.7MB). Free memory was 145.3MB in the beginning and 432.9MB in the end (delta: -287.6MB). Peak memory consumption was 463.3MB. Max. memory is 8.0GB. [2022-03-16 07:31:20,008 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.14ms. Allocated memory is still 180.4MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:31:20,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.53ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 143.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 07:31:20,009 INFO L158 Benchmark]: Boogie Preprocessor took 15.39ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 142.8MB in the end (delta: 989.8kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 07:31:20,010 INFO L158 Benchmark]: RCFGBuilder took 197.43ms. Allocated memory is still 180.4MB. Free memory was 142.8MB in the beginning and 133.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2022-03-16 07:31:20,010 INFO L158 Benchmark]: TraceAbstraction took 861080.91ms. Allocated memory was 180.4MB in the beginning and 671.1MB in the end (delta: 490.7MB). Free memory was 132.8MB in the beginning and 432.9MB in the end (delta: -300.1MB). Peak memory consumption was 451.7MB. Max. memory is 8.0GB. [2022-03-16 07:31:20,011 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 0.14ms. Allocated memory is still 180.4MB. Free memory is still 146.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.53ms. Allocated memory is still 180.4MB. Free memory was 145.3MB in the beginning and 143.8MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 15.39ms. Allocated memory is still 180.4MB. Free memory was 143.8MB in the beginning and 142.8MB in the end (delta: 989.8kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 197.43ms. Allocated memory is still 180.4MB. Free memory was 142.8MB in the beginning and 133.4MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * TraceAbstraction took 861080.91ms. Allocated memory was 180.4MB in the beginning and 671.1MB in the end (delta: 490.7MB). Free memory was 132.8MB in the beginning and 432.9MB in the end (delta: -300.1MB). Peak memory consumption was 451.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 66]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 63 with TraceHistMax 11,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 5 for 19ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 42 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 861.0s, OverallIterations: 10, TraceHistogramMax: 0, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 31.7s, 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, 434.6s 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