/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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 01:35:04,838 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 01:35:04,840 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 01:35:04,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 01:35:04,922 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 01:35:04,922 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 01:35:04,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 01:35:04,925 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-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 01:35:04,961 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 01:35:04,961 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 01:35:04,962 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 01:35:04,962 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 01:35:04,963 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 01:35:04,963 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 01:35:04,963 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 01:35:04,963 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 01:35:04,963 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 01:35:04,964 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 01:35:04,964 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 01:35:04,964 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 01:35:04,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 01:35:04,965 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 01:35:04,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 01:35:04,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 01:35:04,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:35:04,967 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 01:35:04,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 01:35:04,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 01:35:04,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 01:35:04,967 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 01:35:04,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 01:35:04,968 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 01:35:05,170 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 01:35:05,189 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 01:35:05,191 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 01:35:05,192 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 01:35:05,193 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 01:35:05,194 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl [2021-10-25 01:35:05,194 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-min.wvr.bpl' [2021-10-25 01:35:05,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 01:35:05,215 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 01:35:05,216 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 01:35:05,216 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 01:35:05,216 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 01:35:05,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,233 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,239 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 01:35:05,240 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 01:35:05,240 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 01:35:05,240 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 01:35:05,247 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,256 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,260 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,261 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 01:35:05,261 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 01:35:05,262 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 01:35:05,262 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 01:35:05,263 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/1) ... [2021-10-25 01:35:05,269 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:35:05,274 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:05,289 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) [2021-10-25 01:35:05,294 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 [2021-10-25 01:35:05,318 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 01:35:05,318 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 01:35:05,318 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 01:35:05,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 01:35:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 01:35:05,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 01:35:05,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 01:35:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 01:35:05,319 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 01:35:05,319 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 01:35:05,319 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 01:35:05,319 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 01:35:05,320 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 01:35:05,559 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 01:35:05,560 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-25 01:35:05,561 INFO L202 PluginConnector]: Adding new model three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:35:05 BoogieIcfgContainer [2021-10-25 01:35:05,561 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 01:35:05,563 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 01:35:05,563 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 01:35:05,565 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 01:35:05,566 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:35:05" (1/2) ... [2021-10-25 01:35:05,567 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6427d628 and model type three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:35:05, skipping insertion in model container [2021-10-25 01:35:05,567 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-min.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:35:05" (2/2) ... [2021-10-25 01:35:05,568 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-min.wvr.bpl [2021-10-25 01:35:05,583 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 01:35:05,583 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 01:35:05,584 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 01:35:05,584 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 01:35:05,633 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-25 01:35:05,715 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 01:35:05,715 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:05,720 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) [2021-10-25 01:35:05,721 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 [2021-10-25 01:35:05,755 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 01:35:05,761 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 [2021-10-25 01:35:05,762 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 01:35:05,985 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:05,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:05,989 INFO L82 PathProgramCache]: Analyzing trace with hash -1195572488, now seen corresponding path program 1 times [2021-10-25 01:35:05,996 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:05,996 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839678023] [2021-10-25 01:35:05,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:05,997 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:06,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:06,284 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 19 proven. 23 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2021-10-25 01:35:06,285 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:06,285 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839678023] [2021-10-25 01:35:06,285 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839678023] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:06,286 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526638488] [2021-10-25 01:35:06,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:06,286 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:06,286 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:06,288 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) [2021-10-25 01:35:06,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 01:35:06,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:06,362 INFO L263 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-25 01:35:06,369 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:06,607 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 25 proven. 8 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-25 01:35:06,608 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526638488] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:06,608 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:06,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 5] total 8 [2021-10-25 01:35:06,610 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43695249] [2021-10-25 01:35:06,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 01:35:06,616 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:06,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 01:35:06,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-25 01:35:06,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:06,631 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:06,632 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.888888888888889) internal successors, (53), 8 states have internal predecessors, (53), 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) [2021-10-25 01:35:06,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:06,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:06,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:06,977 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 [2021-10-25 01:35:06,978 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:06,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:06,978 INFO L82 PathProgramCache]: Analyzing trace with hash 530665342, now seen corresponding path program 2 times [2021-10-25 01:35:06,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:06,979 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5722293] [2021-10-25 01:35:06,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:06,979 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:07,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:07,126 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 01:35:07,126 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:07,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5722293] [2021-10-25 01:35:07,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5722293] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:07,127 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1522881603] [2021-10-25 01:35:07,127 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 01:35:07,127 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:07,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:07,132 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) [2021-10-25 01:35:07,163 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 01:35:07,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 01:35:07,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:07,201 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-25 01:35:07,202 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:07,389 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 5 proven. 17 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 01:35:07,389 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1522881603] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:07,389 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:07,390 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 11 [2021-10-25 01:35:07,390 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [338631639] [2021-10-25 01:35:07,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-25 01:35:07,393 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:07,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-25 01:35:07,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2021-10-25 01:35:07,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:07,395 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:07,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.416666666666667) internal successors, (53), 11 states have internal predecessors, (53), 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) [2021-10-25 01:35:07,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:07,396 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:07,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-25 01:35:07,899 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:08,087 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 [2021-10-25 01:35:08,088 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:08,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:08,088 INFO L82 PathProgramCache]: Analyzing trace with hash -788499019, now seen corresponding path program 1 times [2021-10-25 01:35:08,088 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:08,089 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867603230] [2021-10-25 01:35:08,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:08,089 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:08,200 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 105 proven. 19 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2021-10-25 01:35:08,200 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:08,200 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867603230] [2021-10-25 01:35:08,201 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867603230] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:08,201 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1910832735] [2021-10-25 01:35:08,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:08,201 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:08,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:08,202 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) [2021-10-25 01:35:08,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 01:35:08,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:08,303 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-25 01:35:08,305 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:08,532 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 105 proven. 18 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-10-25 01:35:08,534 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1910832735] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:08,535 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:08,540 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 7 [2021-10-25 01:35:08,541 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107285783] [2021-10-25 01:35:08,543 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 01:35:08,543 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:08,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 01:35:08,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-10-25 01:35:08,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:08,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:08,550 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 7 states have internal predecessors, (56), 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) [2021-10-25 01:35:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-25 01:35:08,550 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:08,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-10-25 01:35:08,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:08,698 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:08,887 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 [2021-10-25 01:35:08,888 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:08,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:08,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1058604869, now seen corresponding path program 2 times [2021-10-25 01:35:08,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:08,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619787433] [2021-10-25 01:35:08,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:08,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:08,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 141 proven. 34 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2021-10-25 01:35:09,031 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:09,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619787433] [2021-10-25 01:35:09,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619787433] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:09,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [136968901] [2021-10-25 01:35:09,031 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 01:35:09,032 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:09,032 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:09,033 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) [2021-10-25 01:35:09,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 01:35:09,159 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 01:35:09,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:09,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 10 conjunts are in the unsatisfiable core [2021-10-25 01:35:09,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 266 backedges. 141 proven. 33 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2021-10-25 01:35:09,395 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [136968901] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:09,395 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:09,395 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 8 [2021-10-25 01:35:09,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901888964] [2021-10-25 01:35:09,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 01:35:09,397 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:09,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 01:35:09,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-25 01:35:09,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:09,398 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:09,398 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 6.444444444444445) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 01:35:09,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:09,398 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2021-10-25 01:35:09,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:09,399 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:09,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:09,560 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:09,747 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 [2021-10-25 01:35:09,748 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:09,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:09,748 INFO L82 PathProgramCache]: Analyzing trace with hash 197559371, now seen corresponding path program 3 times [2021-10-25 01:35:09,748 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:09,748 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1578119825] [2021-10-25 01:35:09,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:09,749 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:09,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:09,833 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-25 01:35:09,834 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:09,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1578119825] [2021-10-25 01:35:09,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1578119825] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:09,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976477005] [2021-10-25 01:35:09,834 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 01:35:09,834 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:09,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:09,840 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) [2021-10-25 01:35:09,842 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 01:35:09,988 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-25 01:35:09,988 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:09,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-25 01:35:09,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:10,224 INFO L134 CoverageAnalysis]: Checked inductivity of 302 backedges. 100 proven. 3 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2021-10-25 01:35:10,225 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976477005] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:10,225 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:10,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 8 [2021-10-25 01:35:10,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [519739981] [2021-10-25 01:35:10,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-10-25 01:35:10,226 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:10,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-10-25 01:35:10,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2021-10-25 01:35:10,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:10,226 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:10,226 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.125) internal successors, (41), 8 states have internal predecessors, (41), 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) [2021-10-25 01:35:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:10,227 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:10,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:10,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-25 01:35:10,616 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 [2021-10-25 01:35:10,617 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:10,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:10,617 INFO L82 PathProgramCache]: Analyzing trace with hash -1828601614, now seen corresponding path program 3 times [2021-10-25 01:35:10,617 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:10,617 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553602044] [2021-10-25 01:35:10,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:10,618 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:10,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:10,719 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 81 proven. 29 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2021-10-25 01:35:10,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:10,719 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553602044] [2021-10-25 01:35:10,720 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553602044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:10,720 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310348259] [2021-10-25 01:35:10,720 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 01:35:10,720 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:10,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:10,721 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) [2021-10-25 01:35:10,733 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 01:35:10,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2021-10-25 01:35:10,966 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:10,968 INFO L263 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-25 01:35:10,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:11,303 INFO L134 CoverageAnalysis]: Checked inductivity of 247 backedges. 41 proven. 166 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2021-10-25 01:35:11,304 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310348259] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:11,304 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:11,304 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 10] total 14 [2021-10-25 01:35:11,304 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336712437] [2021-10-25 01:35:11,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-25 01:35:11,305 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:11,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-25 01:35:11,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2021-10-25 01:35:11,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:11,306 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:11,306 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 5.6) internal successors, (84), 14 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:11,306 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:11,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:11,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 01:35:11,702 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:11,899 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 [2021-10-25 01:35:11,899 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:11,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:11,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1466093088, now seen corresponding path program 4 times [2021-10-25 01:35:11,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:11,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2048089962] [2021-10-25 01:35:11,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:11,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:11,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:12,013 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 42 proven. 43 refuted. 0 times theorem prover too weak. 98 trivial. 0 not checked. [2021-10-25 01:35:12,014 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:12,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2048089962] [2021-10-25 01:35:12,014 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2048089962] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:12,014 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1004557865] [2021-10-25 01:35:12,015 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 01:35:12,015 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:12,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:12,016 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) [2021-10-25 01:35:12,046 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-25 01:35:12,225 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 01:35:12,225 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:12,226 INFO L263 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 17 conjunts are in the unsatisfiable core [2021-10-25 01:35:12,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:12,484 INFO L134 CoverageAnalysis]: Checked inductivity of 183 backedges. 49 proven. 30 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2021-10-25 01:35:12,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1004557865] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:12,485 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:12,485 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5] total 6 [2021-10-25 01:35:12,486 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965136957] [2021-10-25 01:35:12,486 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 01:35:12,486 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:12,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 01:35:12,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-10-25 01:35:12,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:12,489 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:12,489 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.428571428571429) internal successors, (45), 6 states have internal predecessors, (45), 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) [2021-10-25 01:35:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:12,489 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:12,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:12,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-25 01:35:12,490 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:12,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-25 01:35:12,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:12,707 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:12,897 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 [2021-10-25 01:35:12,898 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:12,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:12,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1205104748, now seen corresponding path program 5 times [2021-10-25 01:35:12,898 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:12,898 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692272159] [2021-10-25 01:35:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:12,898 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:12,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:35:13,096 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 46 proven. 225 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-25 01:35:13,097 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:35:13,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692272159] [2021-10-25 01:35:13,097 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692272159] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:13,097 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1403507229] [2021-10-25 01:35:13,097 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 01:35:13,097 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:35:13,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:35:13,098 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) [2021-10-25 01:35:13,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-25 01:35:13,378 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-25 01:35:13,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:35:13,380 INFO L263 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 19 conjunts are in the unsatisfiable core [2021-10-25 01:35:13,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:35:13,717 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 96 proven. 151 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2021-10-25 01:35:13,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1403507229] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:35:13,718 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:35:13,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 11] total 16 [2021-10-25 01:35:13,718 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736443433] [2021-10-25 01:35:13,719 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2021-10-25 01:35:13,719 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:35:13,719 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-10-25 01:35:13,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-10-25 01:35:13,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:13,720 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:35:13,720 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 5.470588235294118) internal successors, (93), 16 states have internal predecessors, (93), 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) [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:13,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:14,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-10-25 01:35:14,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-10-25 01:35:14,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-10-25 01:35:14,428 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-25 01:35:14,623 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 [2021-10-25 01:35:14,624 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:35:14,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:35:14,624 INFO L82 PathProgramCache]: Analyzing trace with hash 798083116, now seen corresponding path program 6 times [2021-10-25 01:35:14,624 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:35:14,624 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851183304] [2021-10-25 01:35:14,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:35:14,624 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:35:16,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2021-10-25 01:49:45,496 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 01:49:45,497 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 01:49:46,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 01:49:46,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Cannot interrupt operation gracefully because timeout expired. Forcing shutdown