/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-POR-Persistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 13:52:02,000 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 13:52:02,001 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 13:52:02,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 13:52:02,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-07 13:52:02,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-07 13:52:02,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-07 13:52:02,043 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-POR-Persistent-NoLbe.epf [2021-08-07 13:52:02,057 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 13:52:02,057 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 13:52:02,058 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 13:52:02,058 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 13:52:02,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 13:52:02,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 13:52:02,059 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 13:52:02,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 13:52:02,059 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 13:52:02,059 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 13:52:02,059 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 13:52:02,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 13:52:02,061 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 13:52:02,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 13:52:02,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 13:52:02,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 13:52:02,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 13:52:02,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 13:52:02,062 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SETS [2021-08-07 13:52:02,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 13:52:02,322 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 13:52:02,348 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 13:52:02,350 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 13:52:02,351 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 13:52:02,352 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 13:52:02,353 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl [2021-08-07 13:52:02,353 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/mult-4.wvr.bpl' [2021-08-07 13:52:02,373 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 13:52:02,376 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 13:52:02,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 13:52:02,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 13:52:02,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 13:52:02,386 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,390 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,396 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 13:52:02,397 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 13:52:02,397 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 13:52:02,397 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 13:52:02,402 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,403 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,403 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,405 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,413 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 13:52:02,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 13:52:02,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 13:52:02,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 13:52:02,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/1) ... [2021-08-07 13:52:02,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 13:52:02,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:02,450 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) [2021-08-07 13:52:02,464 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 [2021-08-07 13:52:02,491 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 13:52:02,491 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 13:52:02,491 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 13:52:02,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 13:52:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 13:52:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 13:52:02,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 13:52:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 13:52:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 13:52:02,492 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-07 13:52:02,492 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-07 13:52:02,492 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-07 13:52:02,493 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-07 13:52:02,493 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-07 13:52:02,493 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-07 13:52:02,494 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-08-07 13:52:02,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 13:52:02,662 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 13:52:02,663 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:52:02 BoogieIcfgContainer [2021-08-07 13:52:02,663 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 13:52:02,664 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 13:52:02,665 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 13:52:02,666 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 13:52:02,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 01:52:02" (1/2) ... [2021-08-07 13:52:02,667 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5287e1f7 and model type mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 01:52:02, skipping insertion in model container [2021-08-07 13:52:02,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 01:52:02" (2/2) ... [2021-08-07 13:52:02,668 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-4.wvr.bpl [2021-08-07 13:52:02,671 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 13:52:02,671 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 13:52:02,672 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 13:52:02,672 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 13:52:02,704 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-08-07 13:52:02,732 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 13:52:02,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:02,733 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) [2021-08-07 13:52:02,734 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 [2021-08-07 13:52:02,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 13:52:02,759 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-08-07 13:52:02,759 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-08-07 13:52:02,912 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:02,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:02,916 INFO L82 PathProgramCache]: Analyzing trace with hash 514462301, now seen corresponding path program 1 times [2021-08-07 13:52:02,922 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:02,922 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300372448] [2021-08-07 13:52:02,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:02,923 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:02,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:03,122 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:52:03,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:03,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300372448] [2021-08-07 13:52:03,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300372448] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:03,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316602070] [2021-08-07 13:52:03,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:03,124 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:03,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:03,149 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) [2021-08-07 13:52:03,181 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-08-07 13:52:03,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:03,221 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-07 13:52:03,224 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:03,554 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 13:52:03,554 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316602070] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:03,554 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:03,554 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 6 [2021-08-07 13:52:03,556 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283393196] [2021-08-07 13:52:03,560 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-08-07 13:52:03,560 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:03,577 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-08-07 13:52:03,577 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-08-07 13:52:03,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:03,578 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:03,579 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 7.166666666666667) internal successors, (43), 6 states have internal predecessors, (43), 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) [2021-08-07 13:52:03,579 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:03,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:03,669 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-08-07 13:52:03,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2021-08-07 13:52:03,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:03,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:03,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1408324593, now seen corresponding path program 2 times [2021-08-07 13:52:03,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:03,855 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262351179] [2021-08-07 13:52:03,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:03,855 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:03,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:03,933 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:52:03,934 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:03,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262351179] [2021-08-07 13:52:03,934 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1262351179] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:03,934 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599823243] [2021-08-07 13:52:03,934 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:52:03,934 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:03,934 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:03,957 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) [2021-08-07 13:52:03,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-08-07 13:52:04,075 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:52:04,076 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:04,092 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-07 13:52:04,093 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:04,364 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 13:52:04,364 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599823243] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:04,364 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:04,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2021-08-07 13:52:04,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393609856] [2021-08-07 13:52:04,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-08-07 13:52:04,367 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:04,375 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-08-07 13:52:04,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-08-07 13:52:04,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:04,376 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:04,376 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.916666666666667) internal successors, (59), 11 states have internal predecessors, (59), 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) [2021-08-07 13:52:04,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:04,376 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:04,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:04,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:04,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:04,900 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:04,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:04,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1987383057, now seen corresponding path program 3 times [2021-08-07 13:52:04,901 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:04,901 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [890035656] [2021-08-07 13:52:04,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:04,901 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:04,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:05,141 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 8 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 13:52:05,141 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:05,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [890035656] [2021-08-07 13:52:05,141 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [890035656] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:05,141 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009864822] [2021-08-07 13:52:05,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:52:05,142 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:05,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:05,157 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) [2021-08-07 13:52:05,218 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-08-07 13:52:05,290 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-07 13:52:05,290 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:05,291 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 8 conjunts are in the unsatisfiable core [2021-08-07 13:52:05,292 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:05,711 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-08-07 13:52:05,713 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009864822] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:05,713 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:05,713 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 6] total 19 [2021-08-07 13:52:05,713 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282249333] [2021-08-07 13:52:05,714 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-08-07 13:52:05,715 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:05,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-08-07 13:52:05,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=323, Unknown=0, NotChecked=0, Total=380 [2021-08-07 13:52:05,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:05,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:05,721 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.45) internal successors, (69), 19 states have internal predecessors, (69), 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) [2021-08-07 13:52:05,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:05,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:05,721 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:06,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:06,516 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:06,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:06,690 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:06,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:06,690 INFO L82 PathProgramCache]: Analyzing trace with hash -2105372473, now seen corresponding path program 4 times [2021-08-07 13:52:06,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:06,690 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566345428] [2021-08-07 13:52:06,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:06,690 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:06,835 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 21 proven. 24 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-08-07 13:52:06,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:06,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566345428] [2021-08-07 13:52:06,836 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566345428] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:06,836 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1517584085] [2021-08-07 13:52:06,836 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:52:06,836 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:06,836 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:06,838 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) [2021-08-07 13:52:06,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-08-07 13:52:06,947 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:52:06,947 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:06,948 INFO L263 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 13:52:06,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:07,341 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 29 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2021-08-07 13:52:07,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1517584085] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:07,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:07,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-08-07 13:52:07,342 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629580754] [2021-08-07 13:52:07,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-07 13:52:07,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:07,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-07 13:52:07,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=356, Unknown=0, NotChecked=0, Total=420 [2021-08-07 13:52:07,343 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:07,343 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:07,343 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 3.857142857142857) internal successors, (81), 20 states have internal predecessors, (81), 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) [2021-08-07 13:52:07,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:07,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:07,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:07,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:07,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:07,737 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:07,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:07,913 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:07,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:07,913 INFO L82 PathProgramCache]: Analyzing trace with hash 658224835, now seen corresponding path program 5 times [2021-08-07 13:52:07,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:07,914 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823054309] [2021-08-07 13:52:07,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:07,914 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:07,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 21 proven. 37 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-08-07 13:52:08,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:08,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823054309] [2021-08-07 13:52:08,278 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1823054309] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:08,278 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1046336049] [2021-08-07 13:52:08,278 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 13:52:08,278 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:08,278 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:08,279 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) [2021-08-07 13:52:08,280 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-08-07 13:52:08,407 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2021-08-07 13:52:08,408 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:08,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 11 conjunts are in the unsatisfiable core [2021-08-07 13:52:08,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:08,763 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 25 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-08-07 13:52:08,763 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1046336049] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:08,764 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:08,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 23 [2021-08-07 13:52:08,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693017364] [2021-08-07 13:52:08,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-07 13:52:08,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:08,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-07 13:52:08,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=462, Unknown=0, NotChecked=0, Total=552 [2021-08-07 13:52:08,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:08,765 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:08,765 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 3.4166666666666665) internal successors, (82), 23 states have internal predecessors, (82), 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) [2021-08-07 13:52:08,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:08,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:08,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:08,765 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:08,766 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:09,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:09,358 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:09,377 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:09,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:09,574 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:09,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:09,575 INFO L82 PathProgramCache]: Analyzing trace with hash 10175805, now seen corresponding path program 6 times [2021-08-07 13:52:09,575 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:09,575 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830888079] [2021-08-07 13:52:09,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:09,575 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:09,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:09,779 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 9 proven. 55 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-08-07 13:52:09,779 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:09,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830888079] [2021-08-07 13:52:09,780 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [830888079] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:09,780 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018033339] [2021-08-07 13:52:09,780 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 13:52:09,780 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:09,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:09,797 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) [2021-08-07 13:52:09,821 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-08-07 13:52:10,015 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2021-08-07 13:52:10,015 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:10,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 179 conjuncts, 12 conjunts are in the unsatisfiable core [2021-08-07 13:52:10,017 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:10,432 INFO L134 CoverageAnalysis]: Checked inductivity of 102 backedges. 16 proven. 48 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2021-08-07 13:52:10,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018033339] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:10,433 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:10,433 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 12] total 21 [2021-08-07 13:52:10,433 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1574579181] [2021-08-07 13:52:10,433 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-07 13:52:10,433 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:10,434 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-07 13:52:10,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2021-08-07 13:52:10,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:10,434 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:10,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.8181818181818183) internal successors, (84), 21 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 13:52:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:10,434 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:10,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:10,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:10,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:10,435 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:10,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:10,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:10,649 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:10,832 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:10,832 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:10,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:10,833 INFO L82 PathProgramCache]: Analyzing trace with hash 868113787, now seen corresponding path program 7 times [2021-08-07 13:52:10,833 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:10,833 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502493075] [2021-08-07 13:52:10,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:10,833 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:10,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 41 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-07 13:52:10,956 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:10,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502493075] [2021-08-07 13:52:10,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1502493075] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:10,957 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [510426380] [2021-08-07 13:52:10,957 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 13:52:10,957 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:10,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:10,958 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) [2021-08-07 13:52:10,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-08-07 13:52:11,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:11,138 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-07 13:52:11,139 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:11,484 INFO L134 CoverageAnalysis]: Checked inductivity of 111 backedges. 41 proven. 30 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-08-07 13:52:11,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [510426380] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:11,484 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:11,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 21 [2021-08-07 13:52:11,484 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55160168] [2021-08-07 13:52:11,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2021-08-07 13:52:11,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:11,485 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-08-07 13:52:11,485 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=351, Unknown=0, NotChecked=0, Total=462 [2021-08-07 13:52:11,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:11,485 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:11,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.272727272727273) internal successors, (72), 21 states have internal predecessors, (72), 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) [2021-08-07 13:52:11,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:11,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:11,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:11,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:11,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:11,752 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:11,950 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2021-08-07 13:52:11,950 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:11,951 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:11,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1563722765, now seen corresponding path program 8 times [2021-08-07 13:52:11,951 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:11,951 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710732525] [2021-08-07 13:52:11,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:11,951 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:11,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:12,355 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 68 proven. 83 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-07 13:52:12,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:12,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710732525] [2021-08-07 13:52:12,355 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710732525] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:12,355 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061896959] [2021-08-07 13:52:12,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:52:12,355 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:12,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:12,356 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) [2021-08-07 13:52:12,399 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-08-07 13:52:12,604 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:52:12,604 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:12,605 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-07 13:52:12,606 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:13,201 INFO L134 CoverageAnalysis]: Checked inductivity of 163 backedges. 65 proven. 64 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2021-08-07 13:52:13,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061896959] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:13,202 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:13,211 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 16] total 39 [2021-08-07 13:52:13,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688793122] [2021-08-07 13:52:13,214 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2021-08-07 13:52:13,214 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:13,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2021-08-07 13:52:13,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=1371, Unknown=0, NotChecked=0, Total=1560 [2021-08-07 13:52:13,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:13,215 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:13,215 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 2.925) internal successors, (117), 39 states have internal predecessors, (117), 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) [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:13,215 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:15,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:15,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-08-07 13:52:15,272 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:15,429 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:15,430 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:15,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:15,430 INFO L82 PathProgramCache]: Analyzing trace with hash 306688737, now seen corresponding path program 9 times [2021-08-07 13:52:15,430 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:15,430 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258339084] [2021-08-07 13:52:15,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:15,430 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:15,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:15,695 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 49 proven. 119 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-08-07 13:52:15,695 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:15,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258339084] [2021-08-07 13:52:15,695 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258339084] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:15,695 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282994442] [2021-08-07 13:52:15,695 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:52:15,695 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:15,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:15,696 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) [2021-08-07 13:52:15,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-08-07 13:52:15,967 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-08-07 13:52:15,968 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:15,969 INFO L263 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-07 13:52:15,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 125 proven. 43 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2021-08-07 13:52:16,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282994442] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:16,720 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:16,720 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 16] total 30 [2021-08-07 13:52:16,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344150042] [2021-08-07 13:52:16,721 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2021-08-07 13:52:16,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:16,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2021-08-07 13:52:16,722 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=168, Invalid=762, Unknown=0, NotChecked=0, Total=930 [2021-08-07 13:52:16,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:16,723 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:16,723 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.3225806451612905) internal successors, (103), 30 states have internal predecessors, (103), 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) [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-08-07 13:52:16,723 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:19,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2021-08-07 13:52:19,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-08-07 13:52:19,520 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:19,702 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2021-08-07 13:52:19,703 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:19,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:19,703 INFO L82 PathProgramCache]: Analyzing trace with hash 96409069, now seen corresponding path program 10 times [2021-08-07 13:52:19,703 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:19,703 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132633747] [2021-08-07 13:52:19,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:19,704 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:19,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:19,936 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 177 proven. 91 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-08-07 13:52:19,936 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:19,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132633747] [2021-08-07 13:52:19,936 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132633747] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:19,936 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1311427584] [2021-08-07 13:52:19,936 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:52:19,936 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:19,937 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:19,937 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) [2021-08-07 13:52:19,938 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-08-07 13:52:20,275 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:52:20,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:20,277 INFO L263 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 22 conjunts are in the unsatisfiable core [2021-08-07 13:52:20,278 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:20,838 INFO L134 CoverageAnalysis]: Checked inductivity of 1046 backedges. 177 proven. 91 refuted. 0 times theorem prover too weak. 778 trivial. 0 not checked. [2021-08-07 13:52:20,839 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1311427584] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:20,839 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:20,839 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22] total 33 [2021-08-07 13:52:20,839 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174074790] [2021-08-07 13:52:20,839 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2021-08-07 13:52:20,839 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:20,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-08-07 13:52:20,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=259, Invalid=863, Unknown=0, NotChecked=0, Total=1122 [2021-08-07 13:52:20,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:20,840 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:20,840 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8823529411764706) internal successors, (98), 33 states have internal predecessors, (98), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 13:52:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:20,840 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2021-08-07 13:52:20,841 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:21,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 111 states. [2021-08-07 13:52:21,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:21,528 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:21,725 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2021-08-07 13:52:21,725 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:21,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:21,725 INFO L82 PathProgramCache]: Analyzing trace with hash -1237171611, now seen corresponding path program 11 times [2021-08-07 13:52:21,725 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:21,725 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23972854] [2021-08-07 13:52:21,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:21,726 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:21,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:22,081 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 184 proven. 166 refuted. 0 times theorem prover too weak. 780 trivial. 0 not checked. [2021-08-07 13:52:22,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:22,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23972854] [2021-08-07 13:52:22,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23972854] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:22,082 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1920137484] [2021-08-07 13:52:22,082 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 13:52:22,082 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:22,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:22,083 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) [2021-08-07 13:52:22,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-08-07 13:52:22,520 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2021-08-07 13:52:22,521 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:22,523 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 46 conjunts are in the unsatisfiable core [2021-08-07 13:52:22,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:24,264 INFO L134 CoverageAnalysis]: Checked inductivity of 1130 backedges. 675 proven. 225 refuted. 0 times theorem prover too weak. 230 trivial. 0 not checked. [2021-08-07 13:52:24,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1920137484] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:24,265 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:24,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 28] total 52 [2021-08-07 13:52:24,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24323454] [2021-08-07 13:52:24,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-08-07 13:52:24,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:24,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-08-07 13:52:24,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=396, Invalid=2360, Unknown=0, NotChecked=0, Total=2756 [2021-08-07 13:52:24,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:24,266 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:24,267 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 3.056603773584906) internal successors, (162), 52 states have internal predecessors, (162), 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) [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 111 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:24,267 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:27,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2021-08-07 13:52:27,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2021-08-07 13:52:27,572 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,SelfDestructingSolverStorable10 [2021-08-07 13:52:27,573 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:27,573 INFO L82 PathProgramCache]: Analyzing trace with hash 711787865, now seen corresponding path program 12 times [2021-08-07 13:52:27,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:27,573 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611283221] [2021-08-07 13:52:27,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:27,573 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:27,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:28,820 INFO L134 CoverageAnalysis]: Checked inductivity of 1522 backedges. 783 proven. 629 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2021-08-07 13:52:28,820 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:28,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611283221] [2021-08-07 13:52:28,820 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611283221] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:28,820 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1380592418] [2021-08-07 13:52:28,820 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 13:52:28,821 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:28,821 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:28,821 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) [2021-08-07 13:52:28,822 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-08-07 13:52:29,361 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2021-08-07 13:52:29,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:29,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 380 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-07 13:52:29,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:30,648 INFO L134 CoverageAnalysis]: Checked inductivity of 1522 backedges. 952 proven. 157 refuted. 0 times theorem prover too weak. 413 trivial. 0 not checked. [2021-08-07 13:52:30,648 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1380592418] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:30,648 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:30,648 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 30] total 92 [2021-08-07 13:52:30,649 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1882609602] [2021-08-07 13:52:30,649 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 93 states [2021-08-07 13:52:30,649 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:30,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 93 interpolants. [2021-08-07 13:52:30,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1159, Invalid=7397, Unknown=0, NotChecked=0, Total=8556 [2021-08-07 13:52:30,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:30,651 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:30,651 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 93 states, 93 states have (on average 2.4946236559139785) internal successors, (232), 92 states have internal predecessors, (232), 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) [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:30,651 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states. [2021-08-07 13:52:30,652 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:31,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:31,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:31,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:31,581 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:31,781 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,SelfDestructingSolverStorable11 [2021-08-07 13:52:31,781 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:31,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:31,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1124962251, now seen corresponding path program 13 times [2021-08-07 13:52:31,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:31,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479740071] [2021-08-07 13:52:31,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:31,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:31,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 1701 backedges. 294 proven. 235 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-08-07 13:52:32,177 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:32,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479740071] [2021-08-07 13:52:32,177 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479740071] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:32,177 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142865885] [2021-08-07 13:52:32,177 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 13:52:32,177 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:32,177 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:32,178 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) [2021-08-07 13:52:32,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2021-08-07 13:52:32,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:32,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 32 conjunts are in the unsatisfiable core [2021-08-07 13:52:32,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:33,828 INFO L134 CoverageAnalysis]: Checked inductivity of 1701 backedges. 294 proven. 235 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-08-07 13:52:33,828 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142865885] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:33,828 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:33,828 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30, 30] total 45 [2021-08-07 13:52:33,828 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700281276] [2021-08-07 13:52:33,829 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2021-08-07 13:52:33,829 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:33,829 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2021-08-07 13:52:33,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=471, Invalid=1599, Unknown=0, NotChecked=0, Total=2070 [2021-08-07 13:52:33,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:33,829 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:33,830 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.739130434782609) internal successors, (126), 45 states have internal predecessors, (126), 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) [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:33,830 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:34,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:34,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:34,147 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:34,348 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:34,348 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:34,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:34,348 INFO L82 PathProgramCache]: Analyzing trace with hash 2105669063, now seen corresponding path program 14 times [2021-08-07 13:52:34,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:34,348 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919957559] [2021-08-07 13:52:34,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:34,349 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:34,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:34,822 INFO L134 CoverageAnalysis]: Checked inductivity of 1761 backedges. 303 proven. 286 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-08-07 13:52:34,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:34,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919957559] [2021-08-07 13:52:34,823 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1919957559] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:34,823 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1911705852] [2021-08-07 13:52:34,823 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:52:34,823 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:34,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:34,824 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) [2021-08-07 13:52:34,825 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2021-08-07 13:52:35,484 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:52:35,484 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:35,486 INFO L263 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 34 conjunts are in the unsatisfiable core [2021-08-07 13:52:35,488 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:36,467 INFO L134 CoverageAnalysis]: Checked inductivity of 1761 backedges. 333 proven. 256 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-08-07 13:52:36,467 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1911705852] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:36,467 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:36,467 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 49 [2021-08-07 13:52:36,467 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089412474] [2021-08-07 13:52:36,468 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-08-07 13:52:36,468 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:36,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-08-07 13:52:36,469 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=565, Invalid=1885, Unknown=0, NotChecked=0, Total=2450 [2021-08-07 13:52:36,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:36,469 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:36,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.72) internal successors, (136), 49 states have internal predecessors, (136), 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) [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:36,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:36,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:36,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:36,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:36,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:36,470 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:37,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:37,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:52:37,359 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:37,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:37,549 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:37,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash -679975101, now seen corresponding path program 15 times [2021-08-07 13:52:37,549 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:37,549 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730920087] [2021-08-07 13:52:37,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:37,550 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:37,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:37,790 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 160 proven. 496 refuted. 0 times theorem prover too weak. 1173 trivial. 0 not checked. [2021-08-07 13:52:37,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:37,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730920087] [2021-08-07 13:52:37,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730920087] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:37,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1253349180] [2021-08-07 13:52:37,790 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:52:37,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:37,790 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:37,792 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:52:37,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2021-08-07 13:52:38,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 18 check-sat command(s) [2021-08-07 13:52:38,471 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:38,473 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 36 conjunts are in the unsatisfiable core [2021-08-07 13:52:38,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:39,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 381 proven. 274 refuted. 0 times theorem prover too weak. 1174 trivial. 0 not checked. [2021-08-07 13:52:39,725 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1253349180] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:39,726 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:39,726 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 20] total 37 [2021-08-07 13:52:39,726 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082239903] [2021-08-07 13:52:39,726 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-07 13:52:39,726 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:39,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-07 13:52:39,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=330, Invalid=1002, Unknown=0, NotChecked=0, Total=1332 [2021-08-07 13:52:39,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:39,727 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:39,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.648648648648648) internal successors, (172), 37 states have internal predecessors, (172), 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) [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:52:39,728 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:39,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:52:39,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:52:39,924 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:40,116 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2021-08-07 13:52:40,117 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:40,117 INFO L82 PathProgramCache]: Analyzing trace with hash -1094894149, now seen corresponding path program 16 times [2021-08-07 13:52:40,117 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:40,117 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [250794066] [2021-08-07 13:52:40,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:40,117 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:40,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:42,422 INFO L134 CoverageAnalysis]: Checked inductivity of 1965 backedges. 897 proven. 1056 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-07 13:52:42,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:42,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [250794066] [2021-08-07 13:52:42,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [250794066] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:42,422 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [632141675] [2021-08-07 13:52:42,422 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:52:42,422 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:42,422 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:42,423 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:52:42,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2021-08-07 13:52:43,222 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:52:43,223 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:43,225 INFO L263 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 40 conjunts are in the unsatisfiable core [2021-08-07 13:52:43,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:52:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 1965 backedges. 418 proven. 375 refuted. 0 times theorem prover too weak. 1172 trivial. 0 not checked. [2021-08-07 13:52:45,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [632141675] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:45,817 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:52:45,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 38] total 114 [2021-08-07 13:52:45,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746486262] [2021-08-07 13:52:45,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2021-08-07 13:52:45,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:52:45,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-08-07 13:52:45,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1235, Invalid=11875, Unknown=0, NotChecked=0, Total=13110 [2021-08-07 13:52:45,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:45,821 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:52:45,821 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.382608695652174) internal successors, (274), 114 states have internal predecessors, (274), 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) [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:45,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:52:45,822 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:52:54,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:52:54,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 246 states. [2021-08-07 13:52:54,962 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2021-08-07 13:52:55,162 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2021-08-07 13:52:55,163 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:52:55,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:52:55,163 INFO L82 PathProgramCache]: Analyzing trace with hash -728218291, now seen corresponding path program 17 times [2021-08-07 13:52:55,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:52:55,163 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1526996366] [2021-08-07 13:52:55,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:52:55,163 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:52:55,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:52:56,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 892 proven. 558 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2021-08-07 13:52:56,792 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:52:56,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1526996366] [2021-08-07 13:52:56,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1526996366] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:52:56,792 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [438269305] [2021-08-07 13:52:56,792 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 13:52:56,792 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:52:56,792 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:52:56,793 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:52:56,794 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2021-08-07 13:52:57,665 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 22 check-sat command(s) [2021-08-07 13:52:57,665 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:52:57,667 INFO L263 TraceCheckSpWp]: Trace formula consists of 484 conjuncts, 38 conjunts are in the unsatisfiable core [2021-08-07 13:52:57,669 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 1462 backedges. 367 proven. 571 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2021-08-07 13:53:00,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [438269305] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:00,204 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:00,204 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [67, 38] total 104 [2021-08-07 13:53:00,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633892177] [2021-08-07 13:53:00,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2021-08-07 13:53:00,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:00,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2021-08-07 13:53:00,207 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1092, Invalid=9828, Unknown=0, NotChecked=0, Total=10920 [2021-08-07 13:53:00,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:00,208 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:00,208 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 2.5428571428571427) internal successors, (267), 104 states have internal predecessors, (267), 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) [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 246 states. [2021-08-07 13:53:00,208 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:16,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:16,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 305 states. [2021-08-07 13:53:16,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:16,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2021-08-07 13:53:16,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2021-08-07 13:53:16,600 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:16,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:16,600 INFO L82 PathProgramCache]: Analyzing trace with hash -118286323, now seen corresponding path program 18 times [2021-08-07 13:53:16,600 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:16,600 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [381210474] [2021-08-07 13:53:16,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:16,600 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:16,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:19,984 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 1817 proven. 1141 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2021-08-07 13:53:19,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:19,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [381210474] [2021-08-07 13:53:19,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [381210474] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:19,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131754051] [2021-08-07 13:53:19,985 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 13:53:19,985 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:19,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:19,986 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:19,987 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2021-08-07 13:53:20,989 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 43 check-sat command(s) [2021-08-07 13:53:20,989 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:53:20,992 INFO L263 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-07 13:53:20,995 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:25,241 INFO L134 CoverageAnalysis]: Checked inductivity of 3300 backedges. 2306 proven. 409 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-08-07 13:53:25,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131754051] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:25,241 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:25,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [93, 54] total 146 [2021-08-07 13:53:25,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254468042] [2021-08-07 13:53:25,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 147 states [2021-08-07 13:53:25,242 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:25,244 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 147 interpolants. [2021-08-07 13:53:25,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3320, Invalid=18142, Unknown=0, NotChecked=0, Total=21462 [2021-08-07 13:53:25,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:25,248 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:25,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 147 states, 147 states have (on average 2.4285714285714284) internal successors, (357), 146 states have internal predecessors, (357), 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) [2021-08-07 13:53:25,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:25,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:25,248 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:25,249 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:25,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 305 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:25,265 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:27,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:27,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:27,854 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2021-08-07 13:53:28,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2021-08-07 13:53:28,039 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:28,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:28,040 INFO L82 PathProgramCache]: Analyzing trace with hash 129890175, now seen corresponding path program 19 times [2021-08-07 13:53:28,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:28,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [24806314] [2021-08-07 13:53:28,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:28,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:28,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 618 proven. 547 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:28,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:28,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [24806314] [2021-08-07 13:53:28,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [24806314] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:28,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1870321041] [2021-08-07 13:53:28,719 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 13:53:28,719 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:28,719 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:28,733 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:28,792 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2021-08-07 13:53:29,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:29,892 INFO L263 TraceCheckSpWp]: Trace formula consists of 694 conjuncts, 48 conjunts are in the unsatisfiable core [2021-08-07 13:53:29,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:31,295 INFO L134 CoverageAnalysis]: Checked inductivity of 3591 backedges. 618 proven. 547 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:31,296 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1870321041] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:31,296 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:31,296 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46] total 69 [2021-08-07 13:53:31,296 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485828256] [2021-08-07 13:53:31,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 70 states [2021-08-07 13:53:31,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:31,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 70 interpolants. [2021-08-07 13:53:31,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1087, Invalid=3743, Unknown=0, NotChecked=0, Total=4830 [2021-08-07 13:53:31,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:31,297 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:31,298 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 70 states, 70 states have (on average 2.4857142857142858) internal successors, (174), 69 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:31,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:31,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:31,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:31,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:31,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2021-08-07 13:53:31,994 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:31,994 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:31,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:31,994 INFO L82 PathProgramCache]: Analyzing trace with hash -681614469, now seen corresponding path program 20 times [2021-08-07 13:53:31,995 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:31,995 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650584409] [2021-08-07 13:53:31,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:31,995 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:32,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3683 backedges. 635 proven. 622 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:32,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:32,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650584409] [2021-08-07 13:53:32,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650584409] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:32,722 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324633324] [2021-08-07 13:53:32,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:53:32,723 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:32,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:32,723 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:32,750 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2021-08-07 13:53:33,898 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:53:33,898 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:53:33,901 INFO L263 TraceCheckSpWp]: Trace formula consists of 704 conjuncts, 50 conjunts are in the unsatisfiable core [2021-08-07 13:53:33,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:35,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3683 backedges. 681 proven. 576 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:35,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324633324] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:35,054 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:35,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 48] total 73 [2021-08-07 13:53:35,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746006685] [2021-08-07 13:53:35,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 74 states [2021-08-07 13:53:35,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:35,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 74 interpolants. [2021-08-07 13:53:35,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1229, Invalid=4173, Unknown=0, NotChecked=0, Total=5402 [2021-08-07 13:53:35,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:35,056 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:35,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 74 states, 74 states have (on average 2.4864864864864864) internal successors, (184), 73 states have internal predecessors, (184), 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) [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:35,056 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:35,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:36,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:36,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2021-08-07 13:53:36,302 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:36,302 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:36,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:36,302 INFO L82 PathProgramCache]: Analyzing trace with hash -2068538633, now seen corresponding path program 21 times [2021-08-07 13:53:36,303 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:36,303 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106272220] [2021-08-07 13:53:36,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:36,303 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:36,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:36,641 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 228 proven. 1128 refuted. 0 times theorem prover too weak. 2427 trivial. 0 not checked. [2021-08-07 13:53:36,641 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:36,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106272220] [2021-08-07 13:53:36,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106272220] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:36,641 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [949682911] [2021-08-07 13:53:36,641 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:53:36,641 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:36,641 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:36,642 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:36,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2021-08-07 13:53:38,020 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 26 check-sat command(s) [2021-08-07 13:53:38,020 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:53:38,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 52 conjunts are in the unsatisfiable core [2021-08-07 13:53:38,024 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:39,326 INFO L134 CoverageAnalysis]: Checked inductivity of 3783 backedges. 753 proven. 602 refuted. 0 times theorem prover too weak. 2428 trivial. 0 not checked. [2021-08-07 13:53:39,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [949682911] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:39,327 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:39,327 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 28] total 53 [2021-08-07 13:53:39,327 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814130925] [2021-08-07 13:53:39,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2021-08-07 13:53:39,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:39,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2021-08-07 13:53:39,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=682, Invalid=2074, Unknown=0, NotChecked=0, Total=2756 [2021-08-07 13:53:39,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:39,328 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:39,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.452830188679245) internal successors, (236), 53 states have internal predecessors, (236), 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) [2021-08-07 13:53:39,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:39,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:39,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:39,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:39,328 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:39,329 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:39,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:53:39,568 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2021-08-07 13:53:39,767 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:39,767 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:39,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:39,767 INFO L82 PathProgramCache]: Analyzing trace with hash -439042705, now seen corresponding path program 22 times [2021-08-07 13:53:39,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:39,767 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490266247] [2021-08-07 13:53:39,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:39,768 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:39,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:40,548 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 806 proven. 751 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:40,548 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:40,549 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490266247] [2021-08-07 13:53:40,549 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490266247] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:40,556 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586549275] [2021-08-07 13:53:40,556 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:53:40,556 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:40,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:40,556 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:40,557 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2021-08-07 13:53:42,037 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:53:42,038 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:53:42,040 INFO L263 TraceCheckSpWp]: Trace formula consists of 738 conjuncts, 56 conjunts are in the unsatisfiable core [2021-08-07 13:53:42,043 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:43,915 INFO L134 CoverageAnalysis]: Checked inductivity of 3983 backedges. 806 proven. 751 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:43,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586549275] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:43,915 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:43,915 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54] total 81 [2021-08-07 13:53:43,915 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538651590] [2021-08-07 13:53:43,916 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 82 states [2021-08-07 13:53:43,916 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:43,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 82 interpolants. [2021-08-07 13:53:43,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1491, Invalid=5151, Unknown=0, NotChecked=0, Total=6642 [2021-08-07 13:53:43,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:43,917 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:43,917 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 82 states, 82 states have (on average 2.4146341463414633) internal successors, (198), 81 states have internal predecessors, (198), 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) [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:43,917 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:53:43,918 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:44,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:44,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:53:44,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:53:44,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2021-08-07 13:53:44,886 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:44,887 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:53:44,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:53:44,887 INFO L82 PathProgramCache]: Analyzing trace with hash -1166626453, now seen corresponding path program 23 times [2021-08-07 13:53:44,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:53:44,887 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1416721981] [2021-08-07 13:53:44,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:53:44,887 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:53:45,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:53:45,981 INFO L134 CoverageAnalysis]: Checked inductivity of 4091 backedges. 827 proven. 838 refuted. 0 times theorem prover too weak. 2426 trivial. 0 not checked. [2021-08-07 13:53:45,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:53:45,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1416721981] [2021-08-07 13:53:45,981 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1416721981] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:45,981 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1574641380] [2021-08-07 13:53:45,981 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 13:53:45,981 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:53:45,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:53:45,982 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:53:45,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2021-08-07 13:53:47,522 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 42 check-sat command(s) [2021-08-07 13:53:47,523 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:53:47,528 INFO L263 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 58 conjunts are in the unsatisfiable core [2021-08-07 13:53:47,531 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:53:50,035 INFO L134 CoverageAnalysis]: Checked inductivity of 4091 backedges. 1445 proven. 1702 refuted. 0 times theorem prover too weak. 944 trivial. 0 not checked. [2021-08-07 13:53:50,035 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1574641380] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:53:50,035 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:53:50,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 58] total 114 [2021-08-07 13:53:50,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537177111] [2021-08-07 13:53:50,036 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 115 states [2021-08-07 13:53:50,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:53:50,037 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 115 interpolants. [2021-08-07 13:53:50,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1715, Invalid=11395, Unknown=0, NotChecked=0, Total=13110 [2021-08-07 13:53:50,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:53:50,038 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:53:50,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 115 states, 115 states have (on average 2.6608695652173915) internal successors, (306), 114 states have internal predecessors, (306), 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) [2021-08-07 13:53:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:53:50,038 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:53:50,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:53:50,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:53:50,039 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 307 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 225 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:53:50,040 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:13,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:13,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-08-07 13:54:13,577 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2021-08-07 13:54:13,768 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:54:13,769 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:54:13,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:54:13,769 INFO L82 PathProgramCache]: Analyzing trace with hash 235143111, now seen corresponding path program 24 times [2021-08-07 13:54:13,769 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:54:13,769 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532330151] [2021-08-07 13:54:13,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:54:13,769 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:54:13,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:54:15,129 INFO L134 CoverageAnalysis]: Checked inductivity of 5513 backedges. 764 proven. 837 refuted. 0 times theorem prover too weak. 3912 trivial. 0 not checked. [2021-08-07 13:54:15,129 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:54:15,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532330151] [2021-08-07 13:54:15,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532330151] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:15,130 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [160636663] [2021-08-07 13:54:15,130 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 13:54:15,130 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:54:15,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:54:15,131 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:54:15,131 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2021-08-07 13:54:16,723 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 53 check-sat command(s) [2021-08-07 13:54:16,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:54:16,728 INFO L263 TraceCheckSpWp]: Trace formula consists of 847 conjuncts, 71 conjunts are in the unsatisfiable core [2021-08-07 13:54:16,730 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:54:21,408 INFO L134 CoverageAnalysis]: Checked inductivity of 5513 backedges. 3643 proven. 792 refuted. 0 times theorem prover too weak. 1078 trivial. 0 not checked. [2021-08-07 13:54:21,409 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [160636663] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:21,409 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:54:21,409 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [59, 69] total 127 [2021-08-07 13:54:21,409 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659856080] [2021-08-07 13:54:21,409 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 128 states [2021-08-07 13:54:21,409 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:54:21,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 128 interpolants. [2021-08-07 13:54:21,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2131, Invalid=14125, Unknown=0, NotChecked=0, Total=16256 [2021-08-07 13:54:21,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:21,411 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:54:21,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 128 states, 128 states have (on average 2.609375) internal successors, (334), 127 states have internal predecessors, (334), 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) [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:21,412 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-08-07 13:54:21,413 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:26,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:26,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 247 states. [2021-08-07 13:54:26,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2021-08-07 13:54:26,665 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2021-08-07 13:54:26,844 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2021-08-07 13:54:26,845 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:54:26,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:54:26,845 INFO L82 PathProgramCache]: Analyzing trace with hash -854391553, now seen corresponding path program 25 times [2021-08-07 13:54:26,845 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:54:26,845 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221504797] [2021-08-07 13:54:26,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:54:26,845 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:54:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:54:27,309 INFO L134 CoverageAnalysis]: Checked inductivity of 5745 backedges. 279 proven. 1653 refuted. 0 times theorem prover too weak. 3813 trivial. 0 not checked. [2021-08-07 13:54:27,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:54:27,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221504797] [2021-08-07 13:54:27,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221504797] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:27,309 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [513622882] [2021-08-07 13:54:27,309 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 13:54:27,309 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:54:27,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:54:27,310 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:54:27,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2021-08-07 13:54:29,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:54:29,220 INFO L263 TraceCheckSpWp]: Trace formula consists of 871 conjuncts, 60 conjunts are in the unsatisfiable core [2021-08-07 13:54:29,223 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:54:31,862 INFO L134 CoverageAnalysis]: Checked inductivity of 5745 backedges. 1015 proven. 812 refuted. 0 times theorem prover too weak. 3918 trivial. 0 not checked. [2021-08-07 13:54:31,862 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [513622882] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:31,862 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:54:31,862 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 60] total 91 [2021-08-07 13:54:31,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286444266] [2021-08-07 13:54:31,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2021-08-07 13:54:31,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:54:31,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2021-08-07 13:54:31,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=996, Invalid=7376, Unknown=0, NotChecked=0, Total=8372 [2021-08-07 13:54:31,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:31,864 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:54:31,864 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 92 states have (on average 2.9565217391304346) internal successors, (272), 91 states have internal predecessors, (272), 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) [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:31,864 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 247 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2021-08-07 13:54:31,865 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:39,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:54:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2021-08-07 13:54:39,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:54:39,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2021-08-07 13:54:40,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2021-08-07 13:54:40,078 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:54:40,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:54:40,078 INFO L82 PathProgramCache]: Analyzing trace with hash -77998467, now seen corresponding path program 26 times [2021-08-07 13:54:40,078 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:54:40,078 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987452931] [2021-08-07 13:54:40,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:54:40,078 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:54:40,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:54:46,784 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 3798 proven. 2002 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-07 13:54:46,785 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:54:46,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987452931] [2021-08-07 13:54:46,785 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987452931] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:46,785 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [494320598] [2021-08-07 13:54:46,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 13:54:46,785 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:54:46,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:54:46,786 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:54:46,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2021-08-07 13:54:48,734 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 13:54:48,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:54:48,738 INFO L263 TraceCheckSpWp]: Trace formula consists of 874 conjuncts, 63 conjunts are in the unsatisfiable core [2021-08-07 13:54:48,740 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:54:53,227 INFO L134 CoverageAnalysis]: Checked inductivity of 5802 backedges. 987 proven. 901 refuted. 0 times theorem prover too weak. 3914 trivial. 0 not checked. [2021-08-07 13:54:53,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [494320598] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:54:53,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:54:53,227 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [151, 61] total 211 [2021-08-07 13:54:53,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42556732] [2021-08-07 13:54:53,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2021-08-07 13:54:53,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:54:53,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2021-08-07 13:54:53,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5054, Invalid=39678, Unknown=0, NotChecked=0, Total=44732 [2021-08-07 13:54:53,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:54:53,231 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:54:53,232 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 2.150943396226415) internal successors, (456), 211 states have internal predecessors, (456), 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) [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2021-08-07 13:54:53,232 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:54:53,233 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:55:08,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 198 states. [2021-08-07 13:55:08,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:55:08,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 216 states. [2021-08-07 13:55:08,310 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2021-08-07 13:55:08,508 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2021-08-07 13:55:08,508 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:55:08,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:55:08,509 INFO L82 PathProgramCache]: Analyzing trace with hash 1556423671, now seen corresponding path program 27 times [2021-08-07 13:55:08,509 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:55:08,509 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992389297] [2021-08-07 13:55:08,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:55:08,509 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:55:08,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:55:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5989 backedges. 285 proven. 1891 refuted. 0 times theorem prover too weak. 3813 trivial. 0 not checked. [2021-08-07 13:55:09,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:55:09,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992389297] [2021-08-07 13:55:09,185 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992389297] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:55:09,185 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1550898108] [2021-08-07 13:55:09,185 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 13:55:09,185 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:55:09,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:55:09,200 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:55:09,251 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2021-08-07 13:55:11,396 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 33 check-sat command(s) [2021-08-07 13:55:11,396 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:55:11,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 695 conjuncts, 66 conjunts are in the unsatisfiable core [2021-08-07 13:55:11,402 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:55:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 5989 backedges. 1181 proven. 994 refuted. 0 times theorem prover too weak. 3814 trivial. 0 not checked. [2021-08-07 13:55:14,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1550898108] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:55:14,192 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:55:14,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 35] total 67 [2021-08-07 13:55:14,192 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566478502] [2021-08-07 13:55:14,193 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2021-08-07 13:55:14,193 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:55:14,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2021-08-07 13:55:14,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1095, Invalid=3327, Unknown=0, NotChecked=0, Total=4422 [2021-08-07 13:55:14,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:55:14,194 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:55:14,194 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 4.358208955223881) internal successors, (292), 67 states have internal predecessors, (292), 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) [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 136 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 97 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:55:14,194 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 450 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 363 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 198 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 216 states. [2021-08-07 13:55:14,195 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:55:34,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:55:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:55:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-08-07 13:55:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:55:34,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 139 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 213 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 491 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:55:34,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 354 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2021-08-07 13:55:34,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-08-07 13:55:34,355 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2021-08-07 13:55:34,531 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:55:34,532 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2021-08-07 13:55:34,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 13:55:34,532 INFO L82 PathProgramCache]: Analyzing trace with hash -686977837, now seen corresponding path program 28 times [2021-08-07 13:55:34,532 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 13:55:34,532 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893603855] [2021-08-07 13:55:34,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 13:55:34,533 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 13:55:35,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 13:56:35,210 INFO L134 CoverageAnalysis]: Checked inductivity of 84907 backedges. 78124 proven. 6759 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-08-07 13:56:35,211 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 13:56:35,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893603855] [2021-08-07 13:56:35,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893603855] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:56:35,212 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595296069] [2021-08-07 13:56:35,212 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 13:56:35,212 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 13:56:35,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 13:56:35,213 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 13:56:35,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2021-08-07 13:56:37,666 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 13:56:37,666 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 13:56:37,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 2323 conjuncts, 374 conjunts are in the unsatisfiable core [2021-08-07 13:56:37,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 13:57:34,727 INFO L134 CoverageAnalysis]: Checked inductivity of 84907 backedges. 77898 proven. 6089 refuted. 0 times theorem prover too weak. 920 trivial. 0 not checked. [2021-08-07 13:57:34,727 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595296069] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 13:57:34,727 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 13:57:34,727 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [401, 240] total 640 [2021-08-07 13:57:34,728 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829736699] [2021-08-07 13:57:34,730 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 641 states [2021-08-07 13:57:34,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 13:57:34,739 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 641 interpolants. [2021-08-07 13:57:34,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79634, Invalid=330606, Unknown=0, NotChecked=0, Total=410240 [2021-08-07 13:57:34,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 13:57:34,752 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 13:57:34,753 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 641 states, 641 states have (on average 2.3837753510140405) internal successors, (1528), 640 states have internal predecessors, (1528), 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) [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 32 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 139 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 213 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 33 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 36 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 491 states. [2021-08-07 13:57:34,753 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 103 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 49 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 52 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 250 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 354 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 122 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 223 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-08-07 13:57:34,754 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2021-08-07 14:06:23,594 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 14:06:23,594 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 14:06:23,594 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-08-07 14:06:23,603 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2021-08-07 14:06:23,773 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2021-08-07 14:06:23,774 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. [2021-08-07 14:06:23,775 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-08-07 14:06:23,776 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-08-07 14:06:23,776 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-08-07 14:06:23,776 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-08-07 14:06:23,776 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION [2021-08-07 14:06:23,782 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-08-07 14:06:23,782 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-07 14:06:23,783 INFO L202 PluginConnector]: Adding new model mult-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.08 02:06:23 BasicIcfg [2021-08-07 14:06:23,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-07 14:06:23,784 INFO L168 Benchmark]: Toolchain (without parser) took 861407.59 ms. Allocated memory was 172.0 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 152.2 MB in the beginning and 6.3 GB in the end (delta: -6.1 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 172.0 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.35 ms. Allocated memory is still 172.0 MB. Free memory was 152.2 MB in the beginning and 150.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L168 Benchmark]: Boogie Preprocessor took 16.74 ms. Allocated memory is still 172.0 MB. Free memory was 150.7 MB in the beginning and 149.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L168 Benchmark]: RCFGBuilder took 249.12 ms. Allocated memory is still 172.0 MB. Free memory was 149.5 MB in the beginning and 133.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L168 Benchmark]: TraceAbstraction took 861118.68 ms. Allocated memory was 172.0 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 133.3 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. [2021-08-07 14:06:23,784 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 172.0 MB. Free memory is still 153.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.35 ms. Allocated memory is still 172.0 MB. Free memory was 152.2 MB in the beginning and 150.7 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 16.74 ms. Allocated memory is still 172.0 MB. Free memory was 150.7 MB in the beginning and 149.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 249.12 ms. Allocated memory is still 172.0 MB. Free memory was 149.5 MB in the beginning and 133.6 MB in the end (delta: 15.9 MB). Peak memory consumption was 15.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 861118.68 ms. Allocated memory was 172.0 MB in the beginning and 7.4 GB in the end (delta: 7.2 GB). Free memory was 133.3 MB in the beginning and 6.3 GB in the end (delta: -6.2 GB). Peak memory consumption was 1.1 GB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 512, positive: 504, positive conditional: 0, positive unconditional: 504, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 512, positive: 500, positive conditional: 0, positive unconditional: 500, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 567, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 512, unknown conditional: 0, unknown unconditional: 512] , Statistics on independence cache: Total cache size (in pairs): 512, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 127, Number of persistent set computation: 41, Number of trivial persistent sets: 13, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 567, positive: 559, positive conditional: 0, positive unconditional: 559, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 512, positive: 504, positive conditional: 0, positive unconditional: 504, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 512, positive: 500, positive conditional: 0, positive unconditional: 500, negative: 12, negative conditional: 0, negative unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 12, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 8, negative conditional: 0, negative unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 88, positive: 29, positive conditional: 0, positive unconditional: 29, negative: 59, negative conditional: 0, negative unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 567, positive: 55, positive conditional: 0, positive unconditional: 55, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 512, unknown conditional: 0, unknown unconditional: 512] , Statistics on independence cache: Total cache size (in pairs): 512, Positive cache size: 504, Positive conditional cache size: 0, Positive unconditional cache size: 504, Negative cache size: 8, Negative conditional cache size: 0, Negative unconditional cache size: 8, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 82]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. - TimeoutResultAtElement [Line: 73]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. - TimeoutResultAtElement [Line: 75]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 2010 known predicates. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 9 procedures, 53 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 861050.6ms, OverallIterations: 28, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.4ms, PartialOrderReductionTime: 644581.4ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 4345, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 489.0ms SsaConstructionTime, 3380.7ms SatisfiabilityAnalysisTime, 183996.6ms InterpolantComputationTime, 11092 NumberOfCodeBlocks, 10848 NumberOfCodeBlocksAsserted, 351 NumberOfCheckSat, 11036 ConstructedInterpolants, 0 QuantifiedInterpolants, 71035 SizeOfPredicates, 64 NumberOfNonLiveVariables, 14610 ConjunctsInSsa, 1344 ConjunctsInUnsatCore, 56 InterpolantComputations, 0 PerfectInterpolantSequences, 248666/287326 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown