/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-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-09 14:57:34,071 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-09 14:57:34,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-09 14:57:34,122 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-09 14:57:34,154 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-09 14:57:34,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-09 14:57:34,155 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-09 14:57:34,155 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-09 14:57:34,156 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-09 14:57:34,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-09 14:57:34,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-09 14:57:34,158 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-09 14:57:34,159 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-09 14:57:34,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-09 14:57:34,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-09 14:57:34,164 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-09 14:57:34,166 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-09 14:57:34,171 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-09 14:57:34,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-09 14:57:34,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-09 14:57:34,173 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-NoLbe.epf [2022-02-09 14:57:34,191 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-09 14:57:34,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-09 14:57:34,192 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-09 14:57:34,192 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-09 14:57:34,192 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-09 14:57:34,192 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-09 14:57:34,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * Use SBE=true [2022-02-09 14:57:34,193 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-09 14:57:34,193 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-09 14:57:34,194 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-09 14:57:34,194 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 14:57:34,195 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2022-02-09 14:57:34,195 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2022-02-09 14:57:34,196 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-09 14:57:34,351 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-09 14:57:34,368 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-09 14:57:34,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-09 14:57:34,370 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-09 14:57:34,371 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-09 14:57:34,372 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl [2022-02-09 14:57:34,372 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-sum.wvr.bpl' [2022-02-09 14:57:34,391 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-09 14:57:34,392 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-09 14:57:34,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-09 14:57:34,393 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-09 14:57:34,393 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-09 14:57:34,404 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,410 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,414 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-09 14:57:34,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-09 14:57:34,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-09 14:57:34,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-09 14:57:34,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-09 14:57:34,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,434 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,434 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,436 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,438 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,439 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-09 14:57:34,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-09 14:57:34,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-09 14:57:34,440 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-09 14:57:34,452 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/1) ... [2022-02-09 14:57:34,457 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-09 14:57:34,462 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:34,477 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-09 14:57:34,492 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-09 14:57:34,516 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-09 14:57:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-09 14:57:34,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-09 14:57:34,516 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-09 14:57:34,516 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-09 14:57:34,516 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-09 14:57:34,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-09 14:57:34,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-09 14:57:34,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-09 14:57:34,517 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-09 14:57:34,517 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-09 14:57:34,517 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-09 14:57:34,518 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-09 14:57:34,554 INFO L234 CfgBuilder]: Building ICFG [2022-02-09 14:57:34,558 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-09 14:57:34,657 INFO L275 CfgBuilder]: Performing block encoding [2022-02-09 14:57:34,671 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-09 14:57:34,672 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-09 14:57:34,673 INFO L202 PluginConnector]: Adding new model three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:57:34 BoogieIcfgContainer [2022-02-09 14:57:34,673 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-09 14:57:34,674 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-09 14:57:34,674 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-09 14:57:34,676 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-09 14:57:34,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 09.02 02:57:34" (1/2) ... [2022-02-09 14:57:34,677 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@421192bc and model type three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.02 02:57:34, skipping insertion in model container [2022-02-09 14:57:34,677 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-sum.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.02 02:57:34" (2/2) ... [2022-02-09 14:57:34,678 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-sum.wvr.bpl [2022-02-09 14:57:34,681 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-09 14:57:34,681 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-09 14:57:34,681 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-09 14:57:34,682 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-09 14:57:34,719 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-09 14:57:34,748 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-09 14:57:34,748 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:34,749 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-09 14:57:34,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-09 14:57:34,788 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2022-02-09 14:57:34,792 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-09 14:57:34,793 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-09 14:57:34,934 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:34,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:34,938 INFO L85 PathProgramCache]: Analyzing trace with hash -1364776823, now seen corresponding path program 1 times [2022-02-09 14:57:34,944 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:34,944 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262576943] [2022-02-09 14:57:34,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:34,944 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:35,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:35,073 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:57:35,074 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:35,074 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262576943] [2022-02-09 14:57:35,074 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262576943] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 14:57:35,075 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 14:57:35,075 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 14:57:35,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [260977580] [2022-02-09 14:57:35,076 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 14:57:35,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-02-09 14:57:35,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:35,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-02-09 14:57:35,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-02-09 14:57:35,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,130 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:35,131 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.25) internal successors, (21), 3 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:35,131 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:35,204 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-09 14:57:35,205 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:35,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:35,205 INFO L85 PathProgramCache]: Analyzing trace with hash -1855095573, now seen corresponding path program 1 times [2022-02-09 14:57:35,205 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:35,206 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005376120] [2022-02-09 14:57:35,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:35,206 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:35,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:35,267 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:57:35,267 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:35,267 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005376120] [2022-02-09 14:57:35,268 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005376120] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:35,269 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [260154129] [2022-02-09 14:57:35,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:35,269 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:35,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:35,284 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:35,285 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-09 14:57:35,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:35,340 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 3 conjunts are in the unsatisfiable core [2022-02-09 14:57:35,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:35,444 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:57:35,444 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-02-09 14:57:35,445 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [260154129] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 14:57:35,445 INFO L191 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-02-09 14:57:35,445 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 3 [2022-02-09 14:57:35,446 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769406434] [2022-02-09 14:57:35,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 14:57:35,446 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 14:57:35,446 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:35,447 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 14:57:35,447 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-02-09 14:57:35,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,447 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:35,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.666666666666667) internal successors, (23), 2 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:35,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:35,447 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:35,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:35,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-09 14:57:35,686 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,SelfDestructingSolverStorable1 [2022-02-09 14:57:35,686 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:35,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:35,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1148337290, now seen corresponding path program 1 times [2022-02-09 14:57:35,687 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:35,687 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [247273399] [2022-02-09 14:57:35,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:35,688 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:35,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:35,730 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-09 14:57:35,730 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:35,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [247273399] [2022-02-09 14:57:35,730 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [247273399] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-09 14:57:35,730 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-09 14:57:35,730 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-09 14:57:35,731 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914488843] [2022-02-09 14:57:35,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-09 14:57:35,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-09 14:57:35,731 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:35,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-09 14:57:35,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-09 14:57:35,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,732 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:35,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:35,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:35,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:35,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:35,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:35,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:35,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-02-09 14:57:35,787 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:35,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:35,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1552688819, now seen corresponding path program 2 times [2022-02-09 14:57:35,788 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:35,788 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794834161] [2022-02-09 14:57:35,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:35,788 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:35,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:35,856 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:57:35,856 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:35,856 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794834161] [2022-02-09 14:57:35,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794834161] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:35,858 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128774725] [2022-02-09 14:57:35,858 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 14:57:35,859 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:35,859 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:35,860 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:35,861 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-09 14:57:35,905 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 14:57:35,905 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:35,906 INFO L263 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 6 conjunts are in the unsatisfiable core [2022-02-09 14:57:35,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:36,014 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:57:36,015 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:36,076 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-02-09 14:57:36,076 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128774725] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:36,076 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:36,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2022-02-09 14:57:36,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095206279] [2022-02-09 14:57:36,077 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:36,079 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-02-09 14:57:36,079 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:36,080 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-02-09 14:57:36,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2022-02-09 14:57:36,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:36,081 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:36,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.4) internal successors, (44), 9 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:36,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:36,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:36,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:36,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:36,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:36,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:36,337 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:36,536 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:36,536 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:36,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:36,537 INFO L85 PathProgramCache]: Analyzing trace with hash 572751241, now seen corresponding path program 3 times [2022-02-09 14:57:36,537 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:36,537 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036644869] [2022-02-09 14:57:36,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:36,537 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:36,907 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:57:36,908 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:36,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036644869] [2022-02-09 14:57:36,908 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036644869] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:36,908 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2134332162] [2022-02-09 14:57:36,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 14:57:36,908 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:36,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:36,909 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:36,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-09 14:57:36,940 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-02-09 14:57:36,941 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:36,941 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 43 conjunts are in the unsatisfiable core [2022-02-09 14:57:36,943 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:37,236 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-02-09 14:57:37,313 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:57:37,314 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 33 treesize of output 41 [2022-02-09 14:57:37,326 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:57:37,327 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 62 treesize of output 66 [2022-02-09 14:57:37,332 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 50 [2022-02-09 14:57:37,694 INFO L387 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 26 treesize of output 18 [2022-02-09 14:57:37,734 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:57:37,734 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:37,970 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:57:37,972 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:57:37,972 INFO L387 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 478 treesize of output 446 [2022-02-09 14:57:38,133 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:57:38,134 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:38,135 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:38,328 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:57:38,347 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:57:38,347 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 72 treesize of output 97 [2022-02-09 14:57:38,354 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:57:38,372 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:57:38,373 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 5 case distinctions, treesize of input 52 treesize of output 77 [2022-02-09 14:57:38,940 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:57:38,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2134332162] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:38,940 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:38,941 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11, 11] total 26 [2022-02-09 14:57:38,941 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1760598892] [2022-02-09 14:57:38,941 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:38,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-02-09 14:57:38,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:38,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-02-09 14:57:38,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=594, Unknown=0, NotChecked=0, Total=702 [2022-02-09 14:57:38,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:38,942 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:38,943 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.5185185185185186) internal successors, (68), 26 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:38,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:38,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:38,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:38,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:38,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:39,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:39,843 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:40,008 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:40,008 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:40,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:40,009 INFO L85 PathProgramCache]: Analyzing trace with hash -1688668313, now seen corresponding path program 4 times [2022-02-09 14:57:40,009 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:40,009 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995119097] [2022-02-09 14:57:40,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:40,009 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:40,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:40,082 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 1 proven. 12 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 14:57:40,082 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:40,082 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995119097] [2022-02-09 14:57:40,083 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995119097] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:40,083 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [146403643] [2022-02-09 14:57:40,083 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 14:57:40,083 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:40,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:40,105 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:40,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-09 14:57:40,163 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 14:57:40,163 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:40,168 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 14:57:40,169 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:40,220 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 14:57:40,221 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:40,274 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 4 proven. 9 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-02-09 14:57:40,274 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [146403643] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:40,274 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:40,274 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 8 [2022-02-09 14:57:40,274 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929303968] [2022-02-09 14:57:40,275 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:40,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-02-09 14:57:40,276 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:40,276 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-02-09 14:57:40,276 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-02-09 14:57:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:40,277 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:40,277 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:40,277 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:40,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:40,493 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:40,677 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:40,678 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:40,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:40,679 INFO L85 PathProgramCache]: Analyzing trace with hash -905640905, now seen corresponding path program 5 times [2022-02-09 14:57:40,679 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:40,679 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973369761] [2022-02-09 14:57:40,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:40,679 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:40,729 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-09 14:57:40,729 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:40,729 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973369761] [2022-02-09 14:57:40,729 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973369761] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:40,730 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1946119749] [2022-02-09 14:57:40,730 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 14:57:40,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:40,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:40,733 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:40,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-09 14:57:40,777 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-02-09 14:57:40,777 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:40,777 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 11 conjunts are in the unsatisfiable core [2022-02-09 14:57:40,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:40,864 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 14:57:40,865 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:40,939 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 12 proven. 23 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2022-02-09 14:57:40,940 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1946119749] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:40,940 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:40,940 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2022-02-09 14:57:40,940 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024213228] [2022-02-09 14:57:40,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:40,941 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-02-09 14:57:40,941 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:40,941 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-02-09 14:57:40,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=78, Unknown=0, NotChecked=0, Total=110 [2022-02-09 14:57:40,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:40,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:40,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:40,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:41,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:41,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:41,133 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:41,323 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:41,324 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:41,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:41,324 INFO L85 PathProgramCache]: Analyzing trace with hash 2146286291, now seen corresponding path program 2 times [2022-02-09 14:57:41,324 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:41,324 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [242707801] [2022-02-09 14:57:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:41,324 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:41,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:41,480 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 115 proven. 23 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-02-09 14:57:41,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:41,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [242707801] [2022-02-09 14:57:41,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [242707801] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:41,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526536707] [2022-02-09 14:57:41,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-09 14:57:41,481 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:41,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:41,482 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:41,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-09 14:57:41,520 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-09 14:57:41,520 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:41,521 INFO L263 TraceCheckSpWp]: Trace formula consists of 172 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-09 14:57:41,522 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:41,689 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-02-09 14:57:41,690 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:41,825 INFO L134 CoverageAnalysis]: Checked inductivity of 160 backedges. 37 proven. 9 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2022-02-09 14:57:41,825 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526536707] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:41,825 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:41,826 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9, 9] total 24 [2022-02-09 14:57:41,826 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208640336] [2022-02-09 14:57:41,826 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:41,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-09 14:57:41,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-09 14:57:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2022-02-09 14:57:41,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:41,827 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:41,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.96) internal successors, (74), 24 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) [2022-02-09 14:57:41,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:41,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:41,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:41,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:41,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:41,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:41,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:41,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:42,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:42,084 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:42,281 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:42,281 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:42,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:42,281 INFO L85 PathProgramCache]: Analyzing trace with hash 136348981, now seen corresponding path program 3 times [2022-02-09 14:57:42,281 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:42,282 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210340542] [2022-02-09 14:57:42,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:42,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:42,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:42,358 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 102 proven. 30 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2022-02-09 14:57:42,358 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:42,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210340542] [2022-02-09 14:57:42,359 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210340542] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:42,359 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719113044] [2022-02-09 14:57:42,359 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-09 14:57:42,359 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:42,359 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:42,365 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:42,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-09 14:57:42,413 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-09 14:57:42,413 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:42,414 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-09 14:57:42,415 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:42,517 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 89 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-09 14:57:42,517 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:42,604 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 89 proven. 15 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-02-09 14:57:42,604 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719113044] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:42,604 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:42,604 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 7, 7] total 20 [2022-02-09 14:57:42,605 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245618620] [2022-02-09 14:57:42,605 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:42,605 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-02-09 14:57:42,605 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:42,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-02-09 14:57:42,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2022-02-09 14:57:42,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:42,606 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:42,606 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 4.55) internal successors, (91), 20 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:42,606 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:43,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:43,210 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:43,403 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-09 14:57:43,403 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:43,404 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1303846056, now seen corresponding path program 4 times [2022-02-09 14:57:43,404 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:43,404 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330120767] [2022-02-09 14:57:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:43,404 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:43,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:43,579 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 130 proven. 78 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2022-02-09 14:57:43,579 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:43,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330120767] [2022-02-09 14:57:43,579 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330120767] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:43,579 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [719307106] [2022-02-09 14:57:43,579 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-09 14:57:43,579 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:43,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:43,581 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:43,607 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-09 14:57:43,649 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-09 14:57:43,649 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:43,650 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-09 14:57:43,652 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:43,892 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 133 proven. 25 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-09 14:57:43,892 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 227 backedges. 133 proven. 25 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2022-02-09 14:57:44,005 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [719307106] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:44,005 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:44,005 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 13, 13] total 31 [2022-02-09 14:57:44,005 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892253933] [2022-02-09 14:57:44,005 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:44,006 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-02-09 14:57:44,006 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:44,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-02-09 14:57:44,006 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=831, Unknown=0, NotChecked=0, Total=992 [2022-02-09 14:57:44,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:44,007 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:44,007 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.03125) internal successors, (97), 31 states have internal predecessors, (97), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:44,007 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:44,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:44,329 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 14:57:44,371 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-09 14:57:44,529 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-09 14:57:44,530 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:44,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:44,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1735156934, now seen corresponding path program 5 times [2022-02-09 14:57:44,531 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:44,531 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [907279140] [2022-02-09 14:57:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:44,531 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:44,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:44,652 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 117 proven. 89 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-09 14:57:44,652 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:44,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [907279140] [2022-02-09 14:57:44,652 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [907279140] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:44,652 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978569575] [2022-02-09 14:57:44,652 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-09 14:57:44,653 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:44,653 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:44,654 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:44,654 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-09 14:57:44,700 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 5 check-sat command(s) [2022-02-09 14:57:44,700 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:44,701 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-09 14:57:44,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:44,836 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 130 proven. 34 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-09 14:57:44,836 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:44,938 INFO L134 CoverageAnalysis]: Checked inductivity of 238 backedges. 130 proven. 34 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-09 14:57:44,938 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978569575] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:44,938 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:44,938 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 8, 8] total 26 [2022-02-09 14:57:44,938 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666731406] [2022-02-09 14:57:44,938 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:44,939 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-02-09 14:57:44,939 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:44,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-02-09 14:57:44,940 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=561, Unknown=0, NotChecked=0, Total=650 [2022-02-09 14:57:44,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:44,940 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:44,940 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 4.153846153846154) internal successors, (108), 26 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:44,940 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:44,941 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 14:57:44,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:45,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 14:57:45,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 14:57:45,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-09 14:57:45,965 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-09 14:57:45,965 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:45,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:45,966 INFO L85 PathProgramCache]: Analyzing trace with hash -2135009162, now seen corresponding path program 6 times [2022-02-09 14:57:45,966 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:45,966 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446539071] [2022-02-09 14:57:45,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:45,966 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:45,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:46,074 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 62 proven. 60 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2022-02-09 14:57:46,075 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:46,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446539071] [2022-02-09 14:57:46,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446539071] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:46,075 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515707089] [2022-02-09 14:57:46,075 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 14:57:46,075 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:46,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:46,076 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:46,077 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-09 14:57:46,123 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2022-02-09 14:57:46,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:46,124 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 15 conjunts are in the unsatisfiable core [2022-02-09 14:57:46,125 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:46,361 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-09 14:57:46,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:57:46,437 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 36 proven. 96 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-02-09 14:57:46,437 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515707089] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-09 14:57:46,437 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-09 14:57:46,437 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 29 [2022-02-09 14:57:46,437 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308057374] [2022-02-09 14:57:46,437 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-09 14:57:46,438 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-02-09 14:57:46,438 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-09 14:57:46,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-02-09 14:57:46,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=735, Unknown=0, NotChecked=0, Total=870 [2022-02-09 14:57:46,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:46,438 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-09 14:57:46,439 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.2) internal successors, (96), 29 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) [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-02-09 14:57:46,439 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-02-09 14:57:47,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-02-09 14:57:47,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-02-09 14:57:47,032 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2022-02-09 14:57:47,216 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-09 14:57:47,216 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-09 14:57:47,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-09 14:57:47,217 INFO L85 PathProgramCache]: Analyzing trace with hash 663911559, now seen corresponding path program 6 times [2022-02-09 14:57:47,217 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-09 14:57:47,217 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753049800] [2022-02-09 14:57:47,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-09 14:57:47,217 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-09 14:57:47,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-09 14:57:48,388 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 3 proven. 165 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:57:48,388 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-09 14:57:48,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753049800] [2022-02-09 14:57:48,388 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753049800] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-09 14:57:48,388 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1932290109] [2022-02-09 14:57:48,388 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-09 14:57:48,389 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-09 14:57:48,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-09 14:57:48,404 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-09 14:57:48,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-09 14:57:48,456 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2022-02-09 14:57:48,456 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-09 14:57:48,458 WARN L261 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 124 conjunts are in the unsatisfiable core [2022-02-09 14:57:48,460 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-09 14:57:49,258 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 17 [2022-02-09 14:57:49,380 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 26 [2022-02-09 14:57:49,506 INFO L353 Elim1Store]: treesize reduction 56, result has 16.4 percent of original size [2022-02-09 14:57:49,506 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 41 treesize of output 46 [2022-02-09 14:57:49,660 INFO L353 Elim1Store]: treesize reduction 110, result has 14.1 percent of original size [2022-02-09 14:57:49,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 1 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 58 treesize of output 66 [2022-02-09 14:57:49,874 INFO L353 Elim1Store]: treesize reduction 176, result has 12.4 percent of original size [2022-02-09 14:57:49,874 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 9 case distinctions, treesize of input 75 treesize of output 86 [2022-02-09 14:57:50,107 INFO L353 Elim1Store]: treesize reduction 254, result has 11.2 percent of original size [2022-02-09 14:57:50,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 1 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 14 case distinctions, treesize of input 92 treesize of output 106 [2022-02-09 14:57:50,467 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,468 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,469 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,471 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,472 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,473 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,479 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,480 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,481 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,484 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,485 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,487 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,491 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,492 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,495 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,497 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,498 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,521 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,526 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,527 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,528 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,531 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,883 INFO L353 Elim1Store]: treesize reduction 136, result has 63.7 percent of original size [2022-02-09 14:57:50,884 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 35 case distinctions, treesize of input 146 treesize of output 338 [2022-02-09 14:57:50,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,896 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,912 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,914 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,917 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:50,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,188 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:57:51,188 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 31 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 35 case distinctions, treesize of input 666 treesize of output 922 [2022-02-09 14:57:51,223 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,224 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,226 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,227 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,228 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,230 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,233 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,235 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:57:51,269 INFO L353 Elim1Store]: treesize reduction 120, result has 8.4 percent of original size [2022-02-09 14:57:51,270 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 6 select indices, 6 select index equivalence classes, 11 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 10 case distinctions, treesize of input 672 treesize of output 617 [2022-02-09 14:58:12,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,925 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,926 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,927 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,930 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,934 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:12,982 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-02-09 14:58:12,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 51 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 15 case distinctions, treesize of input 64 treesize of output 176 [2022-02-09 14:58:13,161 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 20 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-09 14:58:13,162 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-09 14:58:41,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,889 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,890 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,892 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,893 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,894 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:41,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,895 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,896 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,897 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,898 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,900 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,901 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:41,902 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,904 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:41,905 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,906 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,907 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,908 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-02-09 14:58:41,910 INFO L173 IndexEqualityManager]: detected equality via solver [2022-02-09 14:58:41,911 INFO L387 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 10357 treesize of output 10165 [2022-02-09 14:58:41,921 WARN L325 FreeRefinementEngine]: Global settings require throwing the following exception [2022-02-09 14:58:41,938 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-09 14:58:42,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-02-09 14:58:42,138 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine$ApplicationTermTask.doStep(TermContextTransformationEngine.java:169) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:77) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:273) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:145) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:93) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:414) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:227) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:156) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-02-09 14:58:42,141 INFO L158 Benchmark]: Toolchain (without parser) took 67748.93ms. Allocated memory was 202.4MB in the beginning and 634.4MB in the end (delta: 432.0MB). Free memory was 167.6MB in the beginning and 380.1MB in the end (delta: -212.5MB). Peak memory consumption was 220.2MB. Max. memory is 8.0GB. [2022-02-09 14:58:42,141 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-09 14:58:42,141 INFO L158 Benchmark]: Boogie Procedure Inliner took 34.88ms. Allocated memory is still 202.4MB. Free memory was 167.6MB in the beginning and 166.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 14:58:42,142 INFO L158 Benchmark]: Boogie Preprocessor took 11.01ms. Allocated memory is still 202.4MB. Free memory was 165.9MB in the beginning and 165.0MB in the end (delta: 923.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-09 14:58:42,142 INFO L158 Benchmark]: RCFGBuilder took 233.38ms. Allocated memory is still 202.4MB. Free memory was 165.0MB in the beginning and 155.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-09 14:58:42,142 INFO L158 Benchmark]: TraceAbstraction took 67466.45ms. Allocated memory was 202.4MB in the beginning and 634.4MB in the end (delta: 432.0MB). Free memory was 154.7MB in the beginning and 380.1MB in the end (delta: -225.4MB). Peak memory consumption was 207.6MB. Max. memory is 8.0GB. [2022-02-09 14:58:42,143 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.11ms. Allocated memory is still 202.4MB. Free memory is still 168.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 34.88ms. Allocated memory is still 202.4MB. Free memory was 167.6MB in the beginning and 166.1MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.01ms. Allocated memory is still 202.4MB. Free memory was 165.9MB in the beginning and 165.0MB in the end (delta: 923.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 233.38ms. Allocated memory is still 202.4MB. Free memory was 165.0MB in the beginning and 155.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 67466.45ms. Allocated memory was 202.4MB in the beginning and 634.4MB in the end (delta: 432.0MB). Free memory was 154.7MB in the beginning and 380.1MB in the end (delta: -225.4MB). Peak memory consumption was 207.6MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-02-09 14:58:42,163 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 [2022-02-09 14:58:42,394 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 Received shutdown request...