/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-NewStatesSleepPersistent-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-8a14012e553caa636f65c1137831746b6d9875cd-8a14012 [2021-08-07 15:34:16,907 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-07 15:34:16,909 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-07 15:34:16,939 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-08-07 15:34:16,997 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-NewStatesSleepPersistent-NoLbe.epf [2021-08-07 15:34:17,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-07 15:34:17,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-07 15:34:17,032 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-07 15:34:17,032 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-07 15:34:17,034 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-07 15:34:17,034 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-07 15:34:17,035 INFO L138 SettingsManager]: * Use SBE=true [2021-08-07 15:34:17,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-07 15:34:17,035 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-07 15:34:17,035 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-07 15:34:17,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-07 15:34:17,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-07 15:34:17,047 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-07 15:34:17,048 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-08-07 15:34:17,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-07 15:34:17,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-07 15:34:17,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-08-07 15:34:17,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-07 15:34:17,049 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 15:34:17,049 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-07 15:34:17,049 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-08-07 15:34:17,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-08-07 15:34:17,051 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES [2021-08-07 15:34:17,051 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-08-07 15:34:17,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-07 15:34:17,379 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-07 15:34:17,381 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-07 15:34:17,382 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-08-07 15:34:17,383 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-08-07 15:34:17,384 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl [2021-08-07 15:34:17,384 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/min-max-2.wvr.bpl' [2021-08-07 15:34:17,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-07 15:34:17,407 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-08-07 15:34:17,408 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-07 15:34:17,408 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-07 15:34:17,409 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-07 15:34:17,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,428 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-07 15:34:17,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-07 15:34:17,436 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-07 15:34:17,436 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-07 15:34:17,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,443 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,447 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,450 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,450 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,451 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-07 15:34:17,452 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-07 15:34:17,452 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-07 15:34:17,453 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-07 15:34:17,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/1) ... [2021-08-07 15:34:17,460 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-07 15:34:17,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:17,478 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 15:34:17,480 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 15:34:17,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-08-07 15:34:17,508 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-08-07 15:34:17,508 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-08-07 15:34:17,508 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-08-07 15:34:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-08-07 15:34:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-08-07 15:34:17,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-08-07 15:34:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-07 15:34:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-07 15:34:17,509 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-08-07 15:34:17,509 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-08-07 15:34:17,509 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-08-07 15:34:17,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-08-07 15:34:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-08-07 15:34:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-08-07 15:34:17,510 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread5 given in one single declaration [2021-08-07 15:34:17,510 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2021-08-07 15:34:17,510 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2021-08-07 15:34:17,511 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 15:34:17,759 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-07 15:34:17,759 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-08-07 15:34:17,761 INFO L202 PluginConnector]: Adding new model min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:34:17 BoogieIcfgContainer [2021-08-07 15:34:17,761 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-07 15:34:17,763 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-07 15:34:17,763 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-07 15:34:17,777 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-07 15:34:17,778 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 07.08 03:34:17" (1/2) ... [2021-08-07 15:34:17,779 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5bb0c1c8 and model type min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.08 03:34:17, skipping insertion in model container [2021-08-07 15:34:17,779 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "min-max-2.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.08 03:34:17" (2/2) ... [2021-08-07 15:34:17,780 INFO L111 eAbstractionObserver]: Analyzing ICFG min-max-2.wvr.bpl [2021-08-07 15:34:17,784 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-08-07 15:34:17,784 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-07 15:34:17,784 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-08-07 15:34:17,784 INFO L509 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-08-07 15:34:17,880 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2021-08-07 15:34:17,917 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-08-07 15:34:17,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:17,919 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 15:34:17,920 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 15:34:17,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-08-07 15:34:17,970 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 15:34:17,970 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-08-07 15:34:18,299 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:18,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:18,304 INFO L82 PathProgramCache]: Analyzing trace with hash 995855459, now seen corresponding path program 1 times [2021-08-07 15:34:18,313 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:18,314 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638890361] [2021-08-07 15:34:18,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:18,314 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:18,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:18,626 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 15:34:18,627 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:18,627 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638890361] [2021-08-07 15:34:18,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638890361] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:18,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1668826388] [2021-08-07 15:34:18,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:18,628 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:18,628 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:18,654 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 15:34:18,656 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 15:34:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:18,726 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-07 15:34:18,734 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:19,095 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 15:34:19,095 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1668826388] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:19,095 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:19,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-08-07 15:34:19,098 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99023600] [2021-08-07 15:34:19,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-07 15:34:19,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:19,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-07 15:34:19,117 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-07 15:34:19,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:19,118 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:19,120 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 6.2) internal successors, (62), 9 states have internal predecessors, (62), 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 15:34:19,120 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:19,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-08-07 15:34:19,509 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 15:34:19,509 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:19,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:19,510 INFO L82 PathProgramCache]: Analyzing trace with hash -1419330971, now seen corresponding path program 2 times [2021-08-07 15:34:19,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:19,513 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776875568] [2021-08-07 15:34:19,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:19,514 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:19,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:19,617 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-07 15:34:19,618 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:19,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776875568] [2021-08-07 15:34:19,618 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776875568] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:19,618 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1374394349] [2021-08-07 15:34:19,618 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 15:34:19,619 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:19,619 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:19,620 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 15:34:19,621 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 15:34:19,695 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 15:34:19,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:19,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 5 conjunts are in the unsatisfiable core [2021-08-07 15:34:19,698 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:20,011 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-08-07 15:34:20,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1374394349] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:20,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:20,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-08-07 15:34:20,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096449843] [2021-08-07 15:34:20,014 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-07 15:34:20,014 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:20,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-07 15:34:20,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2021-08-07 15:34:20,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:20,015 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:20,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.7) internal successors, (77), 9 states have internal predecessors, (77), 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 15:34:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:20,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:20,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 15:34:20,325 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 15:34:20,523 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 15:34:20,524 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:20,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:20,525 INFO L82 PathProgramCache]: Analyzing trace with hash 2062647023, now seen corresponding path program 3 times [2021-08-07 15:34:20,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:20,525 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1810860817] [2021-08-07 15:34:20,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:20,525 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:20,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:20,646 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-08-07 15:34:20,646 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:20,646 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1810860817] [2021-08-07 15:34:20,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1810860817] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:20,647 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1781995533] [2021-08-07 15:34:20,647 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 15:34:20,648 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:20,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:20,657 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 15:34:20,659 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 15:34:20,754 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2021-08-07 15:34:20,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:20,755 INFO L263 TraceCheckSpWp]: Trace formula consists of 103 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-07 15:34:20,758 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:21,088 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-08-07 15:34:21,088 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1781995533] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:21,090 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:21,091 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2021-08-07 15:34:21,091 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211059380] [2021-08-07 15:34:21,091 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-07 15:34:21,091 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:21,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-07 15:34:21,092 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2021-08-07 15:34:21,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:21,092 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:21,093 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 7.1) internal successors, (71), 9 states have internal predecessors, (71), 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 15:34:21,093 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 15:34:21,094 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:21,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:21,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-08-07 15:34:21,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-08-07 15:34:21,325 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 15:34:21,508 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 15:34:21,509 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:21,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:21,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1962726133, now seen corresponding path program 4 times [2021-08-07 15:34:21,510 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:21,510 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292240322] [2021-08-07 15:34:21,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:21,510 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:21,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:21,940 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-08-07 15:34:21,941 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:21,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292240322] [2021-08-07 15:34:21,941 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292240322] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:21,941 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [997167756] [2021-08-07 15:34:21,941 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 15:34:21,941 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:21,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:21,945 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 15:34:21,975 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 15:34:22,065 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 15:34:22,066 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:22,067 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-07 15:34:22,068 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:22,637 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 22 [2021-08-07 15:34:22,805 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-07 15:34:22,805 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [997167756] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:22,806 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:22,806 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 16 [2021-08-07 15:34:22,806 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323353771] [2021-08-07 15:34:22,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-08-07 15:34:22,808 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:22,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-08-07 15:34:22,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2021-08-07 15:34:22,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:22,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:22,810 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 4.764705882352941) internal successors, (81), 16 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 15:34:22,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-08-07 15:34:22,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2021-08-07 15:34:22,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-08-07 15:34:22,810 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:24,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:24,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:24,483 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 15:34:24,676 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 15:34:24,677 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:24,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:24,677 INFO L82 PathProgramCache]: Analyzing trace with hash 1424838253, now seen corresponding path program 5 times [2021-08-07 15:34:24,678 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:24,678 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1042456044] [2021-08-07 15:34:24,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:24,678 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:24,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:24,773 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 5 proven. 20 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 15:34:24,773 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:24,773 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1042456044] [2021-08-07 15:34:24,773 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1042456044] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:24,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558251926] [2021-08-07 15:34:24,774 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 15:34:24,774 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:24,774 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:24,777 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 15:34:24,778 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 15:34:24,953 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2021-08-07 15:34:24,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:24,954 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-07 15:34:24,956 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:25,294 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2021-08-07 15:34:25,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558251926] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:25,295 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:25,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 8 [2021-08-07 15:34:25,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546473584] [2021-08-07 15:34:25,295 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-08-07 15:34:25,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:25,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-08-07 15:34:25,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-08-07 15:34:25,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:25,296 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:25,296 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 7.222222222222222) internal successors, (65), 8 states have internal predecessors, (65), 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 15:34:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:25,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:25,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 15:34:25,541 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 15:34:25,740 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 15:34:25,741 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:25,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:25,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1034891669, now seen corresponding path program 6 times [2021-08-07 15:34:25,742 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:25,742 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086568258] [2021-08-07 15:34:25,742 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:25,742 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:25,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:25,855 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 1 proven. 25 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2021-08-07 15:34:25,856 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:25,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086568258] [2021-08-07 15:34:25,856 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086568258] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:25,856 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740766240] [2021-08-07 15:34:25,856 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 15:34:25,856 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:25,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:25,857 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 15:34:25,859 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 15:34:26,073 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 5 check-sat command(s) [2021-08-07 15:34:26,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:26,076 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 15:34:26,088 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 15 proven. 21 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-07 15:34:26,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740766240] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:26,561 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:26,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 10 [2021-08-07 15:34:26,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193332071] [2021-08-07 15:34:26,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-07 15:34:26,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:26,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-07 15:34:26,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2021-08-07 15:34:26,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:26,563 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:26,563 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.545454545454546) internal successors, (72), 10 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 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-07 15:34:26,563 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:26,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-07 15:34:26,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:26,904 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 15:34:27,092 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 15:34:27,093 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:27,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:27,094 INFO L82 PathProgramCache]: Analyzing trace with hash 1094099370, now seen corresponding path program 7 times [2021-08-07 15:34:27,094 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:27,094 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680107532] [2021-08-07 15:34:27,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:27,094 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:27,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:27,222 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-07 15:34:27,223 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:27,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680107532] [2021-08-07 15:34:27,223 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680107532] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:27,223 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1388066323] [2021-08-07 15:34:27,223 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 15:34:27,223 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:27,223 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:27,224 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 15:34:27,258 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 15:34:27,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:27,432 INFO L263 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 9 conjunts are in the unsatisfiable core [2021-08-07 15:34:27,433 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:27,792 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 37 proven. 15 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-08-07 15:34:27,792 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1388066323] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:27,793 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:27,793 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2021-08-07 15:34:27,793 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834504149] [2021-08-07 15:34:27,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2021-08-07 15:34:27,793 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:27,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-08-07 15:34:27,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-08-07 15:34:27,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:27,794 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:27,794 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.7272727272727275) internal successors, (74), 10 states have internal predecessors, (74), 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 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-08-07 15:34:27,794 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:27,795 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:28,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:28,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:28,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2021-08-07 15:34:28,971 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 15:34:28,971 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:28,972 INFO L82 PathProgramCache]: Analyzing trace with hash -977926492, now seen corresponding path program 8 times [2021-08-07 15:34:28,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:28,972 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504672274] [2021-08-07 15:34:28,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:28,972 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:28,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:29,152 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 30 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-08-07 15:34:29,152 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:29,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504672274] [2021-08-07 15:34:29,152 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504672274] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:29,152 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52919461] [2021-08-07 15:34:29,153 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 15:34:29,153 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:29,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:29,157 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 15:34:29,186 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 15:34:29,421 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 15:34:29,421 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:29,423 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 15:34:29,424 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:29,908 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 25 proven. 25 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2021-08-07 15:34:29,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52919461] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:29,909 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:29,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10] total 20 [2021-08-07 15:34:29,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065996594] [2021-08-07 15:34:29,909 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-08-07 15:34:29,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:29,913 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-08-07 15:34:29,913 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=347, Unknown=0, NotChecked=0, Total=420 [2021-08-07 15:34:29,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:29,913 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:29,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 4.9523809523809526) internal successors, (104), 20 states have internal predecessors, (104), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:29,914 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:31,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:31,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-07 15:34:31,824 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 15:34:32,021 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 15:34:32,021 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:32,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:32,022 INFO L82 PathProgramCache]: Analyzing trace with hash -1131722952, now seen corresponding path program 9 times [2021-08-07 15:34:32,022 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:32,022 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726511184] [2021-08-07 15:34:32,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:32,022 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:32,169 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 20 proven. 67 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2021-08-07 15:34:32,169 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:32,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726511184] [2021-08-07 15:34:32,169 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726511184] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:32,169 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [302094619] [2021-08-07 15:34:32,169 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 15:34:32,169 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:32,169 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:32,170 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 15:34:32,172 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 15:34:32,438 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-08-07 15:34:32,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:32,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 10 conjunts are in the unsatisfiable core [2021-08-07 15:34:32,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:33,011 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 12 proven. 38 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2021-08-07 15:34:33,011 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [302094619] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:33,011 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:33,011 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 8] total 18 [2021-08-07 15:34:33,011 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [740314370] [2021-08-07 15:34:33,012 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-07 15:34:33,012 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:33,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-07 15:34:33,012 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=282, Unknown=0, NotChecked=0, Total=342 [2021-08-07 15:34:33,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:33,012 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:33,013 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.947368421052632) internal successors, (113), 18 states have internal predecessors, (113), 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 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-07 15:34:33,013 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:34,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2021-08-07 15:34:34,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2021-08-07 15:34:35,001 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 15:34:35,189 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 15:34:35,190 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:35,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:35,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1081571925, now seen corresponding path program 10 times [2021-08-07 15:34:35,190 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:35,191 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1193842988] [2021-08-07 15:34:35,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:35,191 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:35,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:35,431 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 43 proven. 48 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-08-07 15:34:35,432 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:35,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1193842988] [2021-08-07 15:34:35,432 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1193842988] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:35,432 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [958647336] [2021-08-07 15:34:35,432 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 15:34:35,432 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:35,432 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:35,433 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-08-07 15:34:35,435 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 15:34:35,709 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 15:34:35,710 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:35,711 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 13 conjunts are in the unsatisfiable core [2021-08-07 15:34:35,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:36,292 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 51 proven. 40 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2021-08-07 15:34:36,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [958647336] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:36,292 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:36,292 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 25 [2021-08-07 15:34:36,297 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2128782386] [2021-08-07 15:34:36,298 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-08-07 15:34:36,298 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:36,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-08-07 15:34:36,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2021-08-07 15:34:36,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:36,299 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:36,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.230769230769231) internal successors, (110), 25 states have internal predecessors, (110), 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 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:36,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 56 states. [2021-08-07 15:34:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 59 states. [2021-08-07 15:34:36,300 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:44,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:44,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:44,953 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 15:34:45,136 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 15:34:45,137 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:45,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:45,137 INFO L82 PathProgramCache]: Analyzing trace with hash 1705979247, now seen corresponding path program 11 times [2021-08-07 15:34:45,138 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:45,138 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [555388781] [2021-08-07 15:34:45,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:45,138 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:45,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 38 proven. 100 refuted. 0 times theorem prover too weak. 53 trivial. 0 not checked. [2021-08-07 15:34:45,358 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [555388781] [2021-08-07 15:34:45,359 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [555388781] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:45,359 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141305517] [2021-08-07 15:34:45,359 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-08-07 15:34:45,359 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:45,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:45,360 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 15:34:45,361 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 15:34:45,744 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2021-08-07 15:34:45,744 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:45,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 14 conjunts are in the unsatisfiable core [2021-08-07 15:34:45,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:46,492 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 67 proven. 61 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2021-08-07 15:34:46,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141305517] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:46,493 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:46,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14] total 23 [2021-08-07 15:34:46,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351351987] [2021-08-07 15:34:46,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2021-08-07 15:34:46,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:46,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-08-07 15:34:46,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=447, Unknown=0, NotChecked=0, Total=552 [2021-08-07 15:34:46,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:46,494 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:46,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 5.125) internal successors, (123), 23 states have internal predecessors, (123), 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 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:46,495 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:49,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:49,218 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-08-07 15:34:49,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-08-07 15:34:49,418 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 15:34:49,418 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:49,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:49,419 INFO L82 PathProgramCache]: Analyzing trace with hash -391877800, now seen corresponding path program 12 times [2021-08-07 15:34:49,419 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:49,419 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1510516360] [2021-08-07 15:34:49,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:49,419 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:49,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:49,698 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 73 proven. 87 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2021-08-07 15:34:49,698 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:49,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1510516360] [2021-08-07 15:34:49,698 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1510516360] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:49,698 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [188457337] [2021-08-07 15:34:49,698 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-08-07 15:34:49,698 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:49,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:49,699 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 15:34:49,701 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 15:34:50,275 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-08-07 15:34:50,276 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:34:50,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 16 conjunts are in the unsatisfiable core [2021-08-07 15:34:50,279 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:50,977 INFO L134 CoverageAnalysis]: Checked inductivity of 248 backedges. 70 proven. 73 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2021-08-07 15:34:50,977 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [188457337] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:50,977 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:50,977 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14] total 29 [2021-08-07 15:34:50,977 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019756166] [2021-08-07 15:34:50,981 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2021-08-07 15:34:50,981 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:50,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2021-08-07 15:34:50,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=727, Unknown=0, NotChecked=0, Total=870 [2021-08-07 15:34:50,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:50,986 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:50,986 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 4.733333333333333) internal successors, (142), 29 states have internal predecessors, (142), 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 15:34:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:50,986 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-08-07 15:34:50,987 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:57,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states. [2021-08-07 15:34:57,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:34:57,902 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 15:34:58,080 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 15:34:58,080 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:34:58,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:34:58,080 INFO L82 PathProgramCache]: Analyzing trace with hash 550265490, now seen corresponding path program 13 times [2021-08-07 15:34:58,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:34:58,081 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030523441] [2021-08-07 15:34:58,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:34:58,081 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:34:58,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:58,287 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 124 proven. 78 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-08-07 15:34:58,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:34:58,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030523441] [2021-08-07 15:34:58,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030523441] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:58,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589935562] [2021-08-07 15:34:58,288 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-08-07 15:34:58,288 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:34:58,288 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:34:58,289 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 15:34:58,290 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 15:34:58,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:34:58,704 INFO L263 TraceCheckSpWp]: Trace formula consists of 230 conjuncts, 17 conjunts are in the unsatisfiable core [2021-08-07 15:34:58,705 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:34:59,293 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 124 proven. 78 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2021-08-07 15:34:59,294 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589935562] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:34:59,294 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:34:59,294 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17] total 18 [2021-08-07 15:34:59,294 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053795044] [2021-08-07 15:34:59,294 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-08-07 15:34:59,294 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:34:59,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-08-07 15:34:59,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2021-08-07 15:34:59,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:34:59,295 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:34:59,295 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 5.052631578947368) internal successors, (96), 18 states have internal predecessors, (96), 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 15:34:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:34:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:34:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:34:59,295 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:34:59,296 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:36,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:36,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:36,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:36,401 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 15:36:36,582 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 15:36:36,582 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:36:36,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:36:36,583 INFO L82 PathProgramCache]: Analyzing trace with hash -2040651542, now seen corresponding path program 14 times [2021-08-07 15:36:36,583 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:36:36,583 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [989031717] [2021-08-07 15:36:36,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:36:36,583 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:36:36,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:36:36,857 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 124 proven. 118 refuted. 0 times theorem prover too weak. 154 trivial. 0 not checked. [2021-08-07 15:36:36,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:36:36,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [989031717] [2021-08-07 15:36:36,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [989031717] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:36,858 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1316543352] [2021-08-07 15:36:36,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-08-07 15:36:36,858 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:36:36,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:36:36,859 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 15:36:36,859 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 15:36:37,922 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-08-07 15:36:37,922 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:36:37,925 INFO L263 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 18 conjunts are in the unsatisfiable core [2021-08-07 15:36:37,927 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:36:38,818 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 101 proven. 95 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2021-08-07 15:36:38,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1316543352] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:38,818 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:36:38,818 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2021-08-07 15:36:38,818 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1826936087] [2021-08-07 15:36:38,819 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-07 15:36:38,819 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:36:38,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-07 15:36:38,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2021-08-07 15:36:38,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:38,820 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:36:38,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.108108108108108) internal successors, (152), 36 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 15:36:38,820 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:38,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:46,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:46,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-08-07 15:36:46,881 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2021-08-07 15:36:47,060 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 15:36:47,061 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:36:47,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:36:47,061 INFO L82 PathProgramCache]: Analyzing trace with hash 1320723308, now seen corresponding path program 15 times [2021-08-07 15:36:47,061 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:36:47,061 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352725050] [2021-08-07 15:36:47,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:36:47,062 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:36:47,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:36:47,303 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 130 proven. 149 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2021-08-07 15:36:47,303 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:36:47,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352725050] [2021-08-07 15:36:47,303 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352725050] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:47,303 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [786956584] [2021-08-07 15:36:47,303 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-08-07 15:36:47,303 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:36:47,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:36:47,305 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 15:36:47,305 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 15:36:48,054 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 10 check-sat command(s) [2021-08-07 15:36:48,054 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:36:48,055 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 20 conjunts are in the unsatisfiable core [2021-08-07 15:36:48,056 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:36:49,009 INFO L134 CoverageAnalysis]: Checked inductivity of 471 backedges. 89 proven. 148 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2021-08-07 15:36:49,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [786956584] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:49,009 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:36:49,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 18] total 36 [2021-08-07 15:36:49,009 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954589107] [2021-08-07 15:36:49,010 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-08-07 15:36:49,010 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:36:49,010 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-08-07 15:36:49,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=199, Invalid=1133, Unknown=0, NotChecked=0, Total=1332 [2021-08-07 15:36:49,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:49,011 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:36:49,011 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 4.405405405405405) internal successors, (163), 36 states have internal predecessors, (163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:49,011 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-08-07 15:36:49,012 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:56,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:56,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2021-08-07 15:36:56,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-08-07 15:36:56,409 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 15:36:56,593 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 15:36:56,593 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2021-08-07 15:36:56,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-07 15:36:56,593 INFO L82 PathProgramCache]: Analyzing trace with hash -128448776, now seen corresponding path program 16 times [2021-08-07 15:36:56,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-07 15:36:56,594 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204199541] [2021-08-07 15:36:56,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-07 15:36:56,594 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-07 15:36:56,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-07 15:36:57,367 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 129 proven. 142 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-08-07 15:36:57,367 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-07 15:36:57,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204199541] [2021-08-07 15:36:57,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204199541] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:57,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [665914067] [2021-08-07 15:36:57,367 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-08-07 15:36:57,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-08-07 15:36:57,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-07 15:36:57,368 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 15:36:57,369 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 15:36:57,873 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-08-07 15:36:57,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-08-07 15:36:57,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 262 conjuncts, 21 conjunts are in the unsatisfiable core [2021-08-07 15:36:57,875 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-07 15:36:58,957 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 145 proven. 126 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2021-08-07 15:36:58,957 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [665914067] provided 0 perfect and 1 imperfect interpolant sequences [2021-08-07 15:36:58,957 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-08-07 15:36:58,957 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21] total 41 [2021-08-07 15:36:58,957 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1493373230] [2021-08-07 15:36:58,958 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2021-08-07 15:36:58,958 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-07 15:36:58,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2021-08-07 15:36:58,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=362, Invalid=1360, Unknown=0, NotChecked=0, Total=1722 [2021-08-07 15:36:58,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-08-07 15:36:58,959 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-08-07 15:36:58,959 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 3.761904761904762) internal successors, (158), 41 states have internal predecessors, (158), 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 15:36:58,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-08-07 15:36:58,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 29 states. [2021-08-07 15:36:58,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-08-07 15:36:58,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 20 states. [2021-08-07 15:36:58,959 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 91 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 93 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 173 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 100 states. [2021-08-07 15:36:58,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.