/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 16:17:18,090 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 16:17:18,100 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 16:17:18,142 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 16:17:18,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 16:17:18,145 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 16:17:18,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 16:17:18,150 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 16:17:18,151 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 16:17:18,155 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 16:17:18,155 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 16:17:18,156 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 16:17:18,156 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 16:17:18,158 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 16:17:18,159 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 16:17:18,161 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 16:17:18,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 16:17:18,161 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 16:17:18,163 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 16:17:18,167 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 16:17:18,168 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 16:17:18,169 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 16:17:18,170 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 16:17:18,170 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 16:17:18,175 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 16:17:18,181 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 16:17:18,182 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 16:17:18,182 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 16:17:18,183 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt.epf [2022-02-19 16:17:18,206 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 16:17:18,207 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 16:17:18,207 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 16:17:18,207 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 16:17:18,208 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 16:17:18,208 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 16:17:18,208 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 16:17:18,208 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 16:17:18,208 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 16:17:18,208 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 16:17:18,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 16:17:18,210 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:17:18,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 16:17:18,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 16:17:18,211 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 16:17:18,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 16:17:18,426 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 16:17:18,427 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 16:17:18,428 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 16:17:18,429 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 16:17:18,429 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl [2022-02-19 16:17:18,430 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl' [2022-02-19 16:17:18,461 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 16:17:18,462 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 16:17:18,464 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 16:17:18,465 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 16:17:18,465 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 16:17:18,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,484 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,488 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 16:17:18,489 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 16:17:18,490 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 16:17:18,491 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 16:17:18,491 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 16:17:18,496 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,496 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,497 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,497 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,501 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,503 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,504 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,508 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 16:17:18,509 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 16:17:18,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 16:17:18,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 16:17:18,510 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/1) ... [2022-02-19 16:17:18,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 16:17:18,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:18,533 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 16:17:18,590 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 16:17:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 16:17:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 16:17:18,590 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 16:17:18,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 16:17:18,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 16:17:18,591 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 16:17:18,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 16:17:18,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 16:17:18,591 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 16:17:18,592 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 16:17:18,592 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 16:17:18,593 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 16:17:18,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 16:17:18,631 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 16:17:18,632 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 16:17:18,710 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 16:17:18,723 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 16:17:18,723 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 16:17:18,725 INFO L202 PluginConnector]: Adding new model three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:17:18 BoogieIcfgContainer [2022-02-19 16:17:18,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 16:17:18,726 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 16:17:18,726 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 16:17:18,728 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 16:17:18,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 04:17:18" (1/2) ... [2022-02-19 16:17:18,729 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11f73ff and model type three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 04:17:18, skipping insertion in model container [2022-02-19 16:17:18,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 04:17:18" (2/2) ... [2022-02-19 16:17:18,730 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum.wvr.bpl [2022-02-19 16:17:18,736 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 16:17:18,736 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 16:17:18,736 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 16:17:18,737 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 16:17:18,810 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-19 16:17:18,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 16:17:18,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:18,849 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 16:17:18,850 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 16:17:18,872 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 16:17:18,877 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=true [2022-02-19 16:17:18,877 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-19 16:17:19,144 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14495 transitions and produced 4462 states. [2022-02-19 16:17:19,146 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:19,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:19,153 INFO L85 PathProgramCache]: Analyzing trace with hash -1931308553, now seen corresponding path program 1 times [2022-02-19 16:17:19,159 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:19,159 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553409270] [2022-02-19 16:17:19,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:19,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:19,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:19,419 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-02-19 16:17:19,420 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:19,420 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553409270] [2022-02-19 16:17:19,420 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553409270] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 16:17:19,421 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 16:17:19,421 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 16:17:19,422 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566684692] [2022-02-19 16:17:19,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 16:17:19,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 16:17:19,429 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:19,459 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 16:17:19,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 16:17:19,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:19,483 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:19,486 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:19,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:19,546 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 337 transitions and produced 243 states. [2022-02-19 16:17:19,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:19,547 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-19 16:17:19,547 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:19,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:19,548 INFO L85 PathProgramCache]: Analyzing trace with hash -225451273, now seen corresponding path program 2 times [2022-02-19 16:17:19,548 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:19,548 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008804993] [2022-02-19 16:17:19,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:19,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:19,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:19,629 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-02-19 16:17:19,629 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:19,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008804993] [2022-02-19 16:17:19,630 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008804993] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-19 16:17:19,630 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-19 16:17:19,630 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-19 16:17:19,630 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674716362] [2022-02-19 16:17:19,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-19 16:17:19,631 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-19 16:17:19,631 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:19,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-19 16:17:19,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-19 16:17:19,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:19,632 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:19,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:19,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:19,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:19,680 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 275 transitions and produced 216 states. [2022-02-19 16:17:19,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:19,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:19,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-19 16:17:19,681 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:19,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:19,682 INFO L85 PathProgramCache]: Analyzing trace with hash 240103357, now seen corresponding path program 1 times [2022-02-19 16:17:19,682 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:19,682 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542766036] [2022-02-19 16:17:19,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:19,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:19,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:20,109 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 118 proven. 76 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-19 16:17:20,109 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:20,109 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542766036] [2022-02-19 16:17:20,110 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542766036] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:20,110 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [396261993] [2022-02-19 16:17:20,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:20,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:20,111 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:20,113 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:20,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 16:17:20,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:20,185 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 16:17:20,189 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:20,364 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-19 16:17:20,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:20,491 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-19 16:17:20,491 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [396261993] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:20,491 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:20,491 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7, 7] total 27 [2022-02-19 16:17:20,492 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382651905] [2022-02-19 16:17:20,492 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:20,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-19 16:17:20,492 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-19 16:17:20,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=138, Invalid=618, Unknown=0, NotChecked=0, Total=756 [2022-02-19 16:17:20,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:20,494 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:20,494 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.6785714285714284) internal successors, (75), 27 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:20,494 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:20,695 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 307 transitions and produced 240 states. [2022-02-19 16:17:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:20,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:20,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:20,725 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:20,896 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,SelfDestructingSolverStorable2 [2022-02-19 16:17:20,897 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:20,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:20,898 INFO L85 PathProgramCache]: Analyzing trace with hash -330444645, now seen corresponding path program 2 times [2022-02-19 16:17:20,898 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:20,898 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [484273068] [2022-02-19 16:17:20,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:20,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:20,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:21,044 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-19 16:17:21,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:21,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [484273068] [2022-02-19 16:17:21,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [484273068] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:21,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1561821575] [2022-02-19 16:17:21,045 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:17:21,045 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:21,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:21,056 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:21,057 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 16:17:21,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:17:21,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:21,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-19 16:17:21,127 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:21,306 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-19 16:17:21,306 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:21,409 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-19 16:17:21,409 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1561821575] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:21,409 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:21,409 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2022-02-19 16:17:21,409 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678507181] [2022-02-19 16:17:21,410 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:21,410 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-19 16:17:21,410 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-19 16:17:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-19 16:17:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:21,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:21,411 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.3157894736842106) internal successors, (63), 18 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:21,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:21,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:21,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:21,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:21,866 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1578 transitions and produced 780 states. [2022-02-19 16:17:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:21,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:21,894 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:22,084 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:22,084 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:22,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:22,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1128739321, now seen corresponding path program 3 times [2022-02-19 16:17:22,085 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:22,085 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364489668] [2022-02-19 16:17:22,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:22,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:22,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:22,246 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 187 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-02-19 16:17:22,246 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:22,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364489668] [2022-02-19 16:17:22,246 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364489668] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:22,246 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35766096] [2022-02-19 16:17:22,246 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 16:17:22,246 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:22,247 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:22,248 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:22,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 16:17:22,286 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-19 16:17:22,286 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:22,287 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-19 16:17:22,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:22,390 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-02-19 16:17:22,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:22,459 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-02-19 16:17:22,459 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35766096] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:22,459 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:22,459 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 6, 6] total 23 [2022-02-19 16:17:22,460 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834475716] [2022-02-19 16:17:22,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:22,460 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-02-19 16:17:22,460 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:22,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-02-19 16:17:22,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=120, Invalid=386, Unknown=0, NotChecked=0, Total=506 [2022-02-19 16:17:22,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:22,461 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:22,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 3.608695652173913) internal successors, (83), 23 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:22,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:22,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:22,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:22,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:22,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:23,141 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9826 transitions and produced 3911 states. [2022-02-19 16:17:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:23,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:23,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:23,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:23,358 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:23,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:23,359 INFO L85 PathProgramCache]: Analyzing trace with hash -9648347, now seen corresponding path program 4 times [2022-02-19 16:17:23,359 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:23,359 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [705171396] [2022-02-19 16:17:23,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:23,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:23,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:23,474 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 99 proven. 97 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-19 16:17:23,475 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:23,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [705171396] [2022-02-19 16:17:23,475 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [705171396] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:23,475 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097661494] [2022-02-19 16:17:23,475 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 16:17:23,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:23,475 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:23,476 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:23,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 16:17:23,525 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 16:17:23,525 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:23,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-19 16:17:23,528 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:23,695 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-19 16:17:23,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:23,815 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-19 16:17:23,816 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097661494] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:23,816 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:23,816 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 24 [2022-02-19 16:17:23,816 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [215428062] [2022-02-19 16:17:23,816 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:23,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-19 16:17:23,817 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:23,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-19 16:17:23,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-02-19 16:17:23,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:23,817 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:23,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.2) internal successors, (80), 24 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:23,818 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:24,207 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 318 transitions and produced 265 states. [2022-02-19 16:17:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:24,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:24,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:24,227 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:24,408 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:24,409 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:24,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:24,409 INFO L85 PathProgramCache]: Analyzing trace with hash 84066311, now seen corresponding path program 5 times [2022-02-19 16:17:24,409 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:24,409 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929607588] [2022-02-19 16:17:24,409 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:24,409 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:24,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:24,501 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 16 proven. 188 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2022-02-19 16:17:24,501 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:24,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929607588] [2022-02-19 16:17:24,501 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929607588] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:24,501 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1393371772] [2022-02-19 16:17:24,501 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 16:17:24,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:24,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:24,516 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:24,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 16:17:24,590 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-02-19 16:17:24,590 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:24,591 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-19 16:17:24,592 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:24,990 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 199 proven. 36 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-19 16:17:24,991 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:25,430 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 199 proven. 36 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-19 16:17:25,430 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1393371772] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:25,430 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:25,430 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 21, 21] total 45 [2022-02-19 16:17:25,431 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236011476] [2022-02-19 16:17:25,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:25,431 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-19 16:17:25,431 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:25,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-19 16:17:25,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=363, Invalid=1707, Unknown=0, NotChecked=0, Total=2070 [2022-02-19 16:17:25,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:25,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:25,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 3.3043478260869565) internal successors, (152), 45 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:25,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:27,110 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 19734 transitions and produced 6794 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:27,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:27,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:27,151 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:27,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:27,330 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:27,330 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:27,330 INFO L85 PathProgramCache]: Analyzing trace with hash 1129448745, now seen corresponding path program 6 times [2022-02-19 16:17:27,330 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:27,331 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647761195] [2022-02-19 16:17:27,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:27,331 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:27,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:27,633 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 121 proven. 402 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2022-02-19 16:17:27,633 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:27,633 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647761195] [2022-02-19 16:17:27,634 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647761195] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:27,634 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225626060] [2022-02-19 16:17:27,634 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 16:17:27,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:27,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:27,635 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:27,636 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 16:17:27,702 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-02-19 16:17:27,703 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:27,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-19 16:17:27,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:27,949 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 115 proven. 9 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-02-19 16:17:27,949 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:28,071 INFO L134 CoverageAnalysis]: Checked inductivity of 563 backedges. 115 proven. 9 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2022-02-19 16:17:28,071 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225626060] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:28,071 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:28,072 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 8, 8] total 29 [2022-02-19 16:17:28,072 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809084356] [2022-02-19 16:17:28,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:28,073 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-02-19 16:17:28,073 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:28,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-02-19 16:17:28,075 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=177, Invalid=635, Unknown=0, NotChecked=0, Total=812 [2022-02-19 16:17:28,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:28,075 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:28,075 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 3.586206896551724) internal successors, (104), 29 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:28,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:28,078 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:30,949 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 70226 transitions and produced 20061 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:30,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:30,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:30,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:30,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:31,157 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:31,157 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:31,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:31,158 INFO L85 PathProgramCache]: Analyzing trace with hash -350888373, now seen corresponding path program 7 times [2022-02-19 16:17:31,158 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:31,158 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337485080] [2022-02-19 16:17:31,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:31,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:31,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:31,529 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 121 proven. 835 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-19 16:17:31,529 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:31,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337485080] [2022-02-19 16:17:31,529 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337485080] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:31,529 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [373282461] [2022-02-19 16:17:31,529 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 16:17:31,530 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:31,530 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:31,531 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:31,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 16:17:31,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:31,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 29 conjunts are in the unsatisfiable core [2022-02-19 16:17:31,608 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:32,284 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 603 proven. 169 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-02-19 16:17:32,284 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 603 proven. 169 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2022-02-19 16:17:32,510 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [373282461] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:32,511 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:32,511 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 29, 29] total 55 [2022-02-19 16:17:32,511 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907074134] [2022-02-19 16:17:32,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:32,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-19 16:17:32,511 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:32,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-19 16:17:32,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=435, Invalid=2645, Unknown=0, NotChecked=0, Total=3080 [2022-02-19 16:17:32,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:32,513 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:32,513 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 3.1607142857142856) internal successors, (177), 55 states have internal predecessors, (177), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:32,513 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:35,605 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 70195 transitions and produced 20275 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:35,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:35,623 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-19 16:17:35,819 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,SelfDestructingSolverStorable8 [2022-02-19 16:17:35,820 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:35,820 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:35,820 INFO L85 PathProgramCache]: Analyzing trace with hash -1527840493, now seen corresponding path program 8 times [2022-02-19 16:17:35,820 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:35,820 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888099537] [2022-02-19 16:17:35,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:35,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:36,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 144 proven. 876 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-19 16:17:36,179 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:36,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1888099537] [2022-02-19 16:17:36,179 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1888099537] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:36,179 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1545355055] [2022-02-19 16:17:36,179 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:17:36,179 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:36,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:36,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:36,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 16:17:36,265 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:17:36,265 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:36,267 INFO L263 TraceCheckSpWp]: Trace formula consists of 425 conjuncts, 31 conjunts are in the unsatisfiable core [2022-02-19 16:17:36,270 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:37,031 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 645 proven. 196 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:17:37,031 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:37,260 INFO L134 CoverageAnalysis]: Checked inductivity of 1068 backedges. 645 proven. 196 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2022-02-19 16:17:37,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1545355055] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:37,260 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:37,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 31, 31] total 59 [2022-02-19 16:17:37,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1090467361] [2022-02-19 16:17:37,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:37,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 60 states [2022-02-19 16:17:37,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:37,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 60 interpolants. [2022-02-19 16:17:37,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=3044, Unknown=0, NotChecked=0, Total=3540 [2022-02-19 16:17:37,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:37,262 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:37,263 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 60 states, 60 states have (on average 3.1166666666666667) internal successors, (187), 59 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:37,263 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:40,931 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 77704 transitions and produced 22361 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:40,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:40,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:40,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-19 16:17:41,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-19 16:17:41,149 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:41,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:41,149 INFO L85 PathProgramCache]: Analyzing trace with hash -291375929, now seen corresponding path program 9 times [2022-02-19 16:17:41,149 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:41,149 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [606211224] [2022-02-19 16:17:41,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:41,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:41,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:41,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 169 proven. 920 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2022-02-19 16:17:41,540 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:41,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [606211224] [2022-02-19 16:17:41,540 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [606211224] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:41,540 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494196329] [2022-02-19 16:17:41,540 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 16:17:41,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:41,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:41,541 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:41,542 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 16:17:41,647 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2022-02-19 16:17:41,647 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:41,649 INFO L263 TraceCheckSpWp]: Trace formula consists of 327 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-19 16:17:41,650 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:41,939 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 504 proven. 130 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2022-02-19 16:17:41,940 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:42,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1137 backedges. 504 proven. 130 refuted. 0 times theorem prover too weak. 503 trivial. 0 not checked. [2022-02-19 16:17:42,132 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494196329] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:42,132 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:42,132 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 14, 14] total 38 [2022-02-19 16:17:42,132 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456584094] [2022-02-19 16:17:42,133 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:42,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-02-19 16:17:42,133 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:42,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-02-19 16:17:42,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=279, Invalid=1127, Unknown=0, NotChecked=0, Total=1406 [2022-02-19 16:17:42,134 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:42,134 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:42,134 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 3.8157894736842106) internal successors, (145), 38 states have internal predecessors, (145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:42,134 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:42,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:42,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:42,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:42,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:42,135 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:49,665 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 234187 transitions and produced 61416 states. [2022-02-19 16:17:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:49,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:49,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:17:49,689 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 16:17:49,875 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,SelfDestructingSolverStorable10 [2022-02-19 16:17:49,876 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:49,876 INFO L85 PathProgramCache]: Analyzing trace with hash 888557433, now seen corresponding path program 10 times [2022-02-19 16:17:49,876 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:49,876 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531664364] [2022-02-19 16:17:49,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:49,876 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:49,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:50,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 538 proven. 639 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2022-02-19 16:17:50,305 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:50,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531664364] [2022-02-19 16:17:50,305 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1531664364] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:50,305 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2011251010] [2022-02-19 16:17:50,305 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 16:17:50,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:50,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:50,307 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:50,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 16:17:50,399 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 16:17:50,399 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:50,401 INFO L263 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-19 16:17:50,403 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 740 proven. 225 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-02-19 16:17:50,983 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:51,220 INFO L134 CoverageAnalysis]: Checked inductivity of 1284 backedges. 740 proven. 225 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-02-19 16:17:51,220 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2011251010] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:51,220 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:51,220 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 33, 33] total 55 [2022-02-19 16:17:51,221 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073345666] [2022-02-19 16:17:51,221 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:51,221 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 56 states [2022-02-19 16:17:51,221 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:51,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 56 interpolants. [2022-02-19 16:17:51,222 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=479, Invalid=2601, Unknown=0, NotChecked=0, Total=3080 [2022-02-19 16:17:51,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:51,222 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:51,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 56 states, 56 states have (on average 2.9107142857142856) internal successors, (163), 55 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:17:51,223 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:52,519 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 619 transitions and produced 516 states. [2022-02-19 16:17:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:52,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:17:52,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:17:52,537 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-19 16:17:52,726 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,SelfDestructingSolverStorable11 [2022-02-19 16:17:52,726 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:17:52,727 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:17:52,727 INFO L85 PathProgramCache]: Analyzing trace with hash 387056859, now seen corresponding path program 11 times [2022-02-19 16:17:52,727 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:17:52,727 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443819036] [2022-02-19 16:17:52,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:17:52,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:17:52,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:17:53,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 196 proven. 1051 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-02-19 16:17:53,152 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:17:53,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443819036] [2022-02-19 16:17:53,153 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443819036] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:17:53,153 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1289611447] [2022-02-19 16:17:53,153 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 16:17:53,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:17:53,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:17:53,155 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:17:53,156 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-19 16:17:53,612 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 25 check-sat command(s) [2022-02-19 16:17:53,613 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:17:53,616 INFO L263 TraceCheckSpWp]: Trace formula consists of 467 conjuncts, 45 conjunts are in the unsatisfiable core [2022-02-19 16:17:53,619 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:17:54,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 1008 proven. 256 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-19 16:17:54,499 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:17:55,275 INFO L134 CoverageAnalysis]: Checked inductivity of 1315 backedges. 1008 proven. 256 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2022-02-19 16:17:55,275 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1289611447] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:17:55,275 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:17:55,275 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 45, 45] total 97 [2022-02-19 16:17:55,276 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211944391] [2022-02-19 16:17:55,276 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:17:55,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-19 16:17:55,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:17:55,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-19 16:17:55,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1435, Invalid=8071, Unknown=0, NotChecked=0, Total=9506 [2022-02-19 16:17:55,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:17:55,279 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:17:55,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 3.142857142857143) internal successors, (308), 97 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:17:55,280 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:03,336 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 264696 transitions and produced 70035 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:18:03,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:18:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:18:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:18:03,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:18:03,360 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-19 16:18:03,560 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-19 16:18:03,561 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:18:03,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:18:03,561 INFO L85 PathProgramCache]: Analyzing trace with hash 323512747, now seen corresponding path program 12 times [2022-02-19 16:18:03,561 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:18:03,561 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605147206] [2022-02-19 16:18:03,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:18:03,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:18:03,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:18:04,421 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 625 proven. 1141 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2022-02-19 16:18:04,421 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:18:04,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605147206] [2022-02-19 16:18:04,421 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605147206] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:18:04,421 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20288898] [2022-02-19 16:18:04,422 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 16:18:04,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:18:04,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:18:04,423 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:18:04,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-19 16:18:04,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 27 check-sat command(s) [2022-02-19 16:18:04,694 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:18:04,697 INFO L263 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 37 conjunts are in the unsatisfiable core [2022-02-19 16:18:04,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:18:05,368 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 718 proven. 315 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-02-19 16:18:05,368 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:18:05,899 INFO L134 CoverageAnalysis]: Checked inductivity of 1834 backedges. 718 proven. 315 refuted. 0 times theorem prover too weak. 801 trivial. 0 not checked. [2022-02-19 16:18:05,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20288898] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:18:05,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:18:05,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 22, 22] total 73 [2022-02-19 16:18:05,899 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056685718] [2022-02-19 16:18:05,899 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:18:05,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 73 states [2022-02-19 16:18:05,900 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:18:05,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 73 interpolants. [2022-02-19 16:18:05,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=925, Invalid=4331, Unknown=0, NotChecked=0, Total=5256 [2022-02-19 16:18:05,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:18:05,902 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:18:05,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 73 states, 73 states have (on average 3.589041095890411) internal successors, (262), 73 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:18:05,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:19:29,747 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3686900 transitions and produced 918707 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:19:29,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 655 states. [2022-02-19 16:19:29,769 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-19 16:19:29,951 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-02-19 16:19:29,951 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:19:29,952 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:19:29,952 INFO L85 PathProgramCache]: Analyzing trace with hash -944362109, now seen corresponding path program 13 times [2022-02-19 16:19:29,952 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:19:29,952 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [701814787] [2022-02-19 16:19:29,952 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:19:29,952 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:19:29,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:19:31,154 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1899 proven. 729 refuted. 0 times theorem prover too weak. 477 trivial. 0 not checked. [2022-02-19 16:19:31,154 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:19:31,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [701814787] [2022-02-19 16:19:31,155 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [701814787] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:19:31,155 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589218927] [2022-02-19 16:19:31,155 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 16:19:31,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:19:31,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:19:31,156 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:19:31,157 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-19 16:19:31,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:19:31,290 INFO L263 TraceCheckSpWp]: Trace formula consists of 688 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-19 16:19:31,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:19:31,652 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1589 proven. 729 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-02-19 16:19:31,653 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:19:32,016 INFO L134 CoverageAnalysis]: Checked inductivity of 3105 backedges. 1589 proven. 729 refuted. 0 times theorem prover too weak. 787 trivial. 0 not checked. [2022-02-19 16:19:32,016 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589218927] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:19:32,016 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:19:32,016 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 57, 57] total 66 [2022-02-19 16:19:32,017 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [77183709] [2022-02-19 16:19:32,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:19:32,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-02-19 16:19:32,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:19:32,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-02-19 16:19:32,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1167, Invalid=3255, Unknown=0, NotChecked=0, Total=4422 [2022-02-19 16:19:32,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:19:32,019 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:19:32,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.701492537313433) internal successors, (181), 66 states have internal predecessors, (181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 655 states. [2022-02-19 16:19:32,019 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:19:32,900 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 928 transitions and produced 764 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:19:32,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 655 states. [2022-02-19 16:19:32,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2022-02-19 16:19:32,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-02-19 16:19:33,111 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:19:33,111 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-19 16:19:33,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 16:19:33,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1406156955, now seen corresponding path program 14 times [2022-02-19 16:19:33,112 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 16:19:33,112 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007217969] [2022-02-19 16:19:33,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 16:19:33,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 16:19:33,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 16:19:33,985 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 676 proven. 2227 refuted. 0 times theorem prover too weak. 257 trivial. 0 not checked. [2022-02-19 16:19:33,985 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 16:19:33,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007217969] [2022-02-19 16:19:33,985 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007217969] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 16:19:33,985 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1808764175] [2022-02-19 16:19:33,985 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 16:19:33,985 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 16:19:33,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 16:19:33,987 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 16:19:33,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-19 16:19:34,120 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 16:19:34,121 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 16:19:34,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 59 conjunts are in the unsatisfiable core [2022-02-19 16:19:34,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 16:19:36,507 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 1648 proven. 784 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-02-19 16:19:36,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 16:19:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3160 backedges. 1648 proven. 784 refuted. 0 times theorem prover too weak. 728 trivial. 0 not checked. [2022-02-19 16:19:36,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1808764175] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 16:19:36,870 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 16:19:36,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 59, 59] total 115 [2022-02-19 16:19:36,871 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243085998] [2022-02-19 16:19:36,871 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 16:19:36,871 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 116 states [2022-02-19 16:19:36,871 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 16:19:36,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 116 interpolants. [2022-02-19 16:19:36,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1770, Invalid=11570, Unknown=0, NotChecked=0, Total=13340 [2022-02-19 16:19:36,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 16:19:36,875 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 16:19:36,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 116 states, 116 states have (on average 2.7413793103448274) internal successors, (318), 115 states have internal predecessors, (318), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 73 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 94 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 118 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 187 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 175 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 655 states. [2022-02-19 16:19:36,875 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 86 states. [2022-02-19 16:19:36,876 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.