/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-20 04:06:38,120 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-20 04:06:38,122 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-20 04:06:38,162 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-20 04:06:38,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-20 04:06:38,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-20 04:06:38,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-20 04:06:38,191 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-20 04:06:38,192 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-20 04:06:38,196 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-20 04:06:38,203 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-20 04:06:38,208 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-20 04:06:38,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-20 04:06:38,212 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-20 04:06:38,213 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-20 04:06:38,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-20 04:06:38,215 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-20 04:06:38,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-20 04:06:38,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-20 04:06:38,222 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-20 04:06:38,230 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy.epf [2022-02-20 04:06:38,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-20 04:06:38,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-20 04:06:38,255 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-20 04:06:38,255 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-20 04:06:38,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-20 04:06:38,256 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-20 04:06:38,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-20 04:06:38,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-20 04:06:38,257 INFO L138 SettingsManager]: * Use SBE=true [2022-02-20 04:06:38,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-20 04:06:38,257 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-20 04:06:38,257 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-20 04:06:38,258 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-20 04:06:38,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-20 04:06:38,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-20 04:06:38,271 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-20 04:06:38,271 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-20 04:06:38,271 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-20 04:06:38,272 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:06:38,272 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-20 04:06:38,272 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-20 04:06:38,273 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-20 04:06:38,274 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-20 04:06:38,507 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-20 04:06:38,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-20 04:06:38,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-20 04:06:38,529 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-20 04:06:38,531 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-20 04:06:38,532 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl [2022-02-20 04:06:38,533 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/three-array-max.wvr.bpl' [2022-02-20 04:06:38,559 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-20 04:06:38,560 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-20 04:06:38,563 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-20 04:06:38,564 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-20 04:06:38,564 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-20 04:06:38,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,581 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,586 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-20 04:06:38,587 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-20 04:06:38,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-20 04:06:38,588 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-20 04:06:38,588 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-20 04:06:38,594 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,594 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,595 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,595 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,600 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,601 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,602 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-20 04:06:38,603 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-20 04:06:38,603 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-20 04:06:38,603 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-20 04:06:38,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/1) ... [2022-02-20 04:06:38,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-20 04:06:38,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:38,631 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) [2022-02-20 04:06:38,649 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 [2022-02-20 04:06:38,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-20 04:06:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-20 04:06:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-20 04:06:38,670 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-20 04:06:38,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-20 04:06:38,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-20 04:06:38,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-20 04:06:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-20 04:06:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-20 04:06:38,671 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-20 04:06:38,671 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-20 04:06:38,671 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-20 04:06:38,672 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-20 04:06:38,711 INFO L234 CfgBuilder]: Building ICFG [2022-02-20 04:06:38,713 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-20 04:06:38,836 INFO L275 CfgBuilder]: Performing block encoding [2022-02-20 04:06:38,867 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-20 04:06:38,868 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-20 04:06:38,869 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:06:38 BoogieIcfgContainer [2022-02-20 04:06:38,870 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-20 04:06:38,871 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-20 04:06:38,871 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-20 04:06:38,879 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-20 04:06:38,879 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 20.02 04:06:38" (1/2) ... [2022-02-20 04:06:38,892 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e088523 and model type three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.02 04:06:38, skipping insertion in model container [2022-02-20 04:06:38,892 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.02 04:06:38" (2/2) ... [2022-02-20 04:06:38,893 INFO L111 eAbstractionObserver]: Analyzing ICFG three-array-max.wvr.bpl [2022-02-20 04:06:38,900 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-20 04:06:38,900 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-20 04:06:38,900 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-20 04:06:38,900 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-20 04:06:38,964 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-02-20 04:06:39,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-20 04:06:39,023 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:39,028 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) [2022-02-20 04:06:39,052 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 [2022-02-20 04:06:39,075 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-20 04:06:39,081 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-02-20 04:06:39,081 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-02-20 04:06:39,411 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 14498 transitions and produced 4465 states. [2022-02-20 04:06:39,414 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:39,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:39,420 INFO L85 PathProgramCache]: Analyzing trace with hash -484707296, now seen corresponding path program 1 times [2022-02-20 04:06:39,429 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:39,430 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408249095] [2022-02-20 04:06:39,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:39,430 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:39,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:39,761 INFO L134 CoverageAnalysis]: Checked inductivity of 252 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 204 trivial. 0 not checked. [2022-02-20 04:06:39,762 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:39,762 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408249095] [2022-02-20 04:06:39,763 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408249095] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 04:06:39,763 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 04:06:39,765 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 04:06:39,767 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555937166] [2022-02-20 04:06:39,768 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 04:06:39,775 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 04:06:39,775 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:39,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 04:06:39,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 04:06:39,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:39,854 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:39,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 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) [2022-02-20 04:06:39,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:39,942 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 340 transitions and produced 246 states. [2022-02-20 04:06:39,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:39,943 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-02-20 04:06:39,943 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:39,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:39,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1581233760, now seen corresponding path program 2 times [2022-02-20 04:06:39,945 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:39,946 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551965432] [2022-02-20 04:06:39,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:39,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:40,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:40,038 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2022-02-20 04:06:40,038 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:40,039 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551965432] [2022-02-20 04:06:40,039 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551965432] provided 1 perfect and 0 imperfect interpolant sequences [2022-02-20 04:06:40,039 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-02-20 04:06:40,039 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-02-20 04:06:40,039 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [669027281] [2022-02-20 04:06:40,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-02-20 04:06:40,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-02-20 04:06:40,041 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:40,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-02-20 04:06:40,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-02-20 04:06:40,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:40,042 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:40,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 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) [2022-02-20 04:06:40,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:40,042 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:40,094 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 278 transitions and produced 219 states. [2022-02-20 04:06:40,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:40,095 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:40,095 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-02-20 04:06:40,095 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:40,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:40,096 INFO L85 PathProgramCache]: Analyzing trace with hash -936116570, now seen corresponding path program 1 times [2022-02-20 04:06:40,096 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:40,096 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265686425] [2022-02-20 04:06:40,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:40,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:40,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:40,498 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 173 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:06:40,498 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:40,498 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265686425] [2022-02-20 04:06:40,499 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265686425] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:40,500 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1214767496] [2022-02-20 04:06:40,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:40,501 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:40,501 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:40,507 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) [2022-02-20 04:06:40,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-20 04:06:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:40,604 INFO L263 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 7 conjunts are in the unsatisfiable core [2022-02-20 04:06:40,610 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:40,893 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-20 04:06:40,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:41,075 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 4 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2022-02-20 04:06:41,075 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1214767496] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:41,075 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:41,076 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 7, 7] total 27 [2022-02-20 04:06:41,076 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281831200] [2022-02-20 04:06:41,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:41,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-02-20 04:06:41,078 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:41,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-02-20 04:06:41,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=586, Unknown=0, NotChecked=0, Total=756 [2022-02-20 04:06:41,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:41,081 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:41,082 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 2.9642857142857144) internal successors, (83), 27 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:06:41,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:41,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:41,082 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:41,382 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 310 transitions and produced 243 states. [2022-02-20 04:06:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:41,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:41,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-20 04:06:41,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-02-20 04:06:41,600 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:41,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:41,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1101747772, now seen corresponding path program 2 times [2022-02-20 04:06:41,601 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:41,601 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2395483] [2022-02-20 04:06:41,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:41,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:41,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:41,751 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 136 proven. 22 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-20 04:06:41,751 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:41,751 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2395483] [2022-02-20 04:06:41,752 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2395483] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:41,752 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1667885569] [2022-02-20 04:06:41,752 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:06:41,752 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:41,752 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:41,753 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) [2022-02-20 04:06:41,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-20 04:06:41,824 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:06:41,825 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:41,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 9 conjunts are in the unsatisfiable core [2022-02-20 04:06:41,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:42,003 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-20 04:06:42,003 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:42,143 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 86 proven. 9 refuted. 0 times theorem prover too weak. 105 trivial. 0 not checked. [2022-02-20 04:06:42,144 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1667885569] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:42,144 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:42,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 18 [2022-02-20 04:06:42,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269440856] [2022-02-20 04:06:42,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:42,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-02-20 04:06:42,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:42,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-02-20 04:06:42,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=286, Unknown=0, NotChecked=0, Total=342 [2022-02-20 04:06:42,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:42,146 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:42,146 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.6315789473684212) internal successors, (69), 18 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-20 04:06:42,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:42,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:42,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:42,146 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:42,660 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1581 transitions and produced 783 states. [2022-02-20 04:06:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:42,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:42,682 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-02-20 04:06:42,875 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 [2022-02-20 04:06:42,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:42,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:42,876 INFO L85 PathProgramCache]: Analyzing trace with hash -1359542942, now seen corresponding path program 3 times [2022-02-20 04:06:42,877 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:42,877 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717120117] [2022-02-20 04:06:42,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:42,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:42,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:43,000 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 108 proven. 67 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2022-02-20 04:06:43,000 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:43,000 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717120117] [2022-02-20 04:06:43,000 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717120117] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:43,001 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [982229940] [2022-02-20 04:06:43,001 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-20 04:06:43,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:43,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:43,002 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) [2022-02-20 04:06:43,029 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-20 04:06:43,060 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-02-20 04:06:43,060 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:43,061 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 5 conjunts are in the unsatisfiable core [2022-02-20 04:06:43,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:43,191 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-02-20 04:06:43,191 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:43,279 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 48 proven. 2 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2022-02-20 04:06:43,279 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [982229940] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:43,280 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:43,280 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 6, 6] total 18 [2022-02-20 04:06:43,280 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199431364] [2022-02-20 04:06:43,280 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:43,280 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-02-20 04:06:43,281 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:43,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-02-20 04:06:43,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=256, Unknown=0, NotChecked=0, Total=306 [2022-02-20 04:06:43,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:43,282 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:43,282 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 4.222222222222222) internal successors, (76), 18 states have internal predecessors, (76), 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) [2022-02-20 04:06:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:43,282 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:44,137 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 9769 transitions and produced 3900 states. [2022-02-20 04:06:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:44,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:44,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:44,167 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-20 04:06:44,351 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 [2022-02-20 04:06:44,352 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:44,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:44,352 INFO L85 PathProgramCache]: Analyzing trace with hash -655720096, now seen corresponding path program 4 times [2022-02-20 04:06:44,352 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:44,352 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073682976] [2022-02-20 04:06:44,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:44,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:44,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:44,550 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 99 proven. 97 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-20 04:06:44,550 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:44,550 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073682976] [2022-02-20 04:06:44,551 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073682976] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:44,551 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [419311023] [2022-02-20 04:06:44,552 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-20 04:06:44,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:44,552 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:44,556 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) [2022-02-20 04:06:44,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-20 04:06:44,624 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-20 04:06:44,625 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:44,626 INFO L263 TraceCheckSpWp]: Trace formula consists of 218 conjuncts, 13 conjunts are in the unsatisfiable core [2022-02-20 04:06:44,628 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:44,858 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-20 04:06:44,858 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:44,982 INFO L134 CoverageAnalysis]: Checked inductivity of 229 backedges. 126 proven. 25 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2022-02-20 04:06:44,982 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [419311023] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:44,982 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:44,983 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 13, 13] total 24 [2022-02-20 04:06:44,983 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478301387] [2022-02-20 04:06:44,983 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:44,983 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-02-20 04:06:44,983 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:44,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-02-20 04:06:44,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=499, Unknown=0, NotChecked=0, Total=600 [2022-02-20 04:06:44,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:44,985 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:44,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.44) internal successors, (86), 24 states have internal predecessors, (86), 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) [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:44,985 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:45,459 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 306 transitions and produced 261 states. [2022-02-20 04:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:45,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:45,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:45,488 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-20 04:06:45,660 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 [2022-02-20 04:06:45,661 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:45,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:45,661 INFO L85 PathProgramCache]: Analyzing trace with hash 1979021314, now seen corresponding path program 5 times [2022-02-20 04:06:45,661 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:45,661 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923312322] [2022-02-20 04:06:45,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:45,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:45,817 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 99 proven. 108 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2022-02-20 04:06:45,817 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:45,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923312322] [2022-02-20 04:06:45,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923312322] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:45,817 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1770874525] [2022-02-20 04:06:45,818 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-20 04:06:45,818 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:45,818 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:45,820 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) [2022-02-20 04:06:45,828 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-20 04:06:45,962 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2022-02-20 04:06:45,962 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:45,964 INFO L263 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 04:06:45,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:46,278 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 51 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-20 04:06:46,278 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:46,585 INFO L134 CoverageAnalysis]: Checked inductivity of 240 backedges. 147 proven. 51 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-02-20 04:06:46,585 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1770874525] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:46,585 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:46,585 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 14, 14] total 39 [2022-02-20 04:06:46,586 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045541690] [2022-02-20 04:06:46,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:46,586 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2022-02-20 04:06:46,586 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:46,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2022-02-20 04:06:46,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=258, Invalid=1302, Unknown=0, NotChecked=0, Total=1560 [2022-02-20 04:06:46,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:46,588 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:46,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 3.825) internal successors, (153), 39 states have internal predecessors, (153), 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) [2022-02-20 04:06:46,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:46,588 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:46,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:46,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:46,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:46,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:46,589 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:51,300 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 108803 transitions and produced 29974 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:51,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:51,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:51,317 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-02-20 04:06:51,501 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 [2022-02-20 04:06:51,502 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:51,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:51,502 INFO L85 PathProgramCache]: Analyzing trace with hash -618402440, now seen corresponding path program 6 times [2022-02-20 04:06:51,503 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:51,503 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859723863] [2022-02-20 04:06:51,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:51,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:51,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:51,862 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 226 proven. 68 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-20 04:06:51,862 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:51,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859723863] [2022-02-20 04:06:51,863 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1859723863] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:51,863 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [666652629] [2022-02-20 04:06:51,863 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-20 04:06:51,863 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:51,863 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:51,868 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) [2022-02-20 04:06:51,875 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-20 04:06:51,953 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2022-02-20 04:06:51,953 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:51,955 INFO L263 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-20 04:06:51,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:52,370 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 94 proven. 49 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-20 04:06:52,370 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:52,541 INFO L134 CoverageAnalysis]: Checked inductivity of 294 backedges. 94 proven. 49 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2022-02-20 04:06:52,541 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [666652629] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:52,541 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:52,541 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 17, 17] total 45 [2022-02-20 04:06:52,541 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686319082] [2022-02-20 04:06:52,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:52,542 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2022-02-20 04:06:52,542 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:52,542 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2022-02-20 04:06:52,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=271, Invalid=1799, Unknown=0, NotChecked=0, Total=2070 [2022-02-20 04:06:52,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:52,544 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:52,544 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 2.760869565217391) internal successors, (127), 45 states have internal predecessors, (127), 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) [2022-02-20 04:06:52,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:52,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:52,544 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:52,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:52,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:52,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:52,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:52,545 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:53,080 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 342 transitions and produced 297 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:53,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:53,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 04:06:53,100 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-20 04:06:53,287 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 [2022-02-20 04:06:53,288 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:53,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:53,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1282559510, now seen corresponding path program 7 times [2022-02-20 04:06:53,288 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:53,288 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151606980] [2022-02-20 04:06:53,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:53,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:53,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:53,511 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 145 proven. 64 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-20 04:06:53,511 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:53,511 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151606980] [2022-02-20 04:06:53,511 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151606980] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:53,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [615977529] [2022-02-20 04:06:53,512 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-20 04:06:53,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:53,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:53,513 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) [2022-02-20 04:06:53,513 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-20 04:06:53,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:53,577 INFO L263 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 19 conjunts are in the unsatisfiable core [2022-02-20 04:06:53,579 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:54,001 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 98 proven. 64 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-02-20 04:06:54,001 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 309 backedges. 98 proven. 64 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2022-02-20 04:06:54,168 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [615977529] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:54,168 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:54,168 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 38 [2022-02-20 04:06:54,168 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988444196] [2022-02-20 04:06:54,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:54,169 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-02-20 04:06:54,169 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-02-20 04:06:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=228, Invalid=1254, Unknown=0, NotChecked=0, Total=1482 [2022-02-20 04:06:54,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:54,170 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:54,170 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 2.948717948717949) internal successors, (115), 38 states have internal predecessors, (115), 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) [2022-02-20 04:06:54,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:54,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:54,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:54,170 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:54,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:54,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:54,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:54,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 04:06:54,171 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:54,785 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 353 transitions and produced 306 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 04:06:54,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:54,803 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-02-20 04:06:54,987 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 [2022-02-20 04:06:54,987 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:54,988 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash -1549074636, now seen corresponding path program 8 times [2022-02-20 04:06:54,988 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:54,988 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738482864] [2022-02-20 04:06:54,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:54,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:55,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-20 04:06:55,180 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 145 proven. 81 refuted. 0 times theorem prover too weak. 100 trivial. 0 not checked. [2022-02-20 04:06:55,180 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-20 04:06:55,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738482864] [2022-02-20 04:06:55,180 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738482864] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-20 04:06:55,180 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [271396634] [2022-02-20 04:06:55,180 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-20 04:06:55,180 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-20 04:06:55,180 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-20 04:06:55,181 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-20 04:06:55,182 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-20 04:06:55,255 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-20 04:06:55,255 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-20 04:06:55,256 INFO L263 TraceCheckSpWp]: Trace formula consists of 252 conjuncts, 21 conjunts are in the unsatisfiable core [2022-02-20 04:06:55,258 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-20 04:06:55,672 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 100 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-20 04:06:55,672 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-20 04:06:55,843 INFO L134 CoverageAnalysis]: Checked inductivity of 326 backedges. 100 proven. 81 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2022-02-20 04:06:55,843 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [271396634] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-20 04:06:55,843 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-20 04:06:55,843 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 21, 21] total 41 [2022-02-20 04:06:55,844 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575111685] [2022-02-20 04:06:55,844 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-20 04:06:55,845 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-02-20 04:06:55,845 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-20 04:06:55,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-02-20 04:06:55,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=261, Invalid=1461, Unknown=0, NotChecked=0, Total=1722 [2022-02-20 04:06:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:55,848 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-20 04:06:55,849 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 2.857142857142857) internal successors, (120), 41 states have internal predecessors, (120), 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) [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:55,849 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-20 04:06:56,531 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 364 transitions and produced 315 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 138 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-20 04:06:56,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-02-20 04:06:56,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-02-20 04:06:56,557 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2022-02-20 04:06:56,743 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 [2022-02-20 04:06:56,743 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-02-20 04:06:56,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-20 04:06:56,744 INFO L85 PathProgramCache]: Analyzing trace with hash 259776722, now seen corresponding path program 9 times [2022-02-20 04:06:56,744 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-20 04:06:56,744 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [187453467] [2022-02-20 04:06:56,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-20 04:06:56,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-20 04:06:58,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat Received shutdown request... [2022-02-20 04:20:59,278 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-02-20 04:20:59,278 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-02-20 04:20:59,278 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 90 with TraceHistMax 10,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-34-3-31-3-33-3-35-3-33-3-33-3-31-3-31-3-31-3-29-3-29-3-29-3-29-3-29-3-29-3-29-3-27-3-27-3-27-3-27-3-27-3-27-3-25-3-25-3-24-3-24-3-24-3-24-3-23-3-23-3-21-3-21-3-21-3-21-3-16-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-12-3-10-3-10-3-10-3-10-3-10-3-10-3-6-3-6-3-4-3-4-2-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. [2022-02-20 04:20:59,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-02-20 04:20:59,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-02-20 04:20:59,280 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-02-20 04:20:59,285 INFO L732 BasicCegarLoop]: Path program histogram: [9, 2] [2022-02-20 04:20:59,287 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-20 04:20:59,287 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-20 04:20:59,288 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:20:59,288 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-20 04:20:59,293 INFO L202 PluginConnector]: Adding new model three-array-max.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.02 04:20:59 BasicIcfg [2022-02-20 04:20:59,293 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-20 04:20:59,294 INFO L158 Benchmark]: Toolchain (without parser) took 860733.44ms. Allocated memory was 205.5MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 163.6MB in the beginning and 323.6MB in the end (delta: -160.0MB). Peak memory consumption was 2.2GB. Max. memory is 8.0GB. [2022-02-20 04:20:59,294 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.21ms. Allocated memory is still 205.5MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-20 04:20:59,294 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.25ms. Allocated memory is still 205.5MB. Free memory was 163.6MB in the beginning and 162.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-20 04:20:59,294 INFO L158 Benchmark]: Boogie Preprocessor took 13.92ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 999.3kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-20 04:20:59,294 INFO L158 Benchmark]: RCFGBuilder took 266.72ms. Allocated memory is still 205.5MB. Free memory was 161.0MB in the beginning and 151.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-20 04:20:59,295 INFO L158 Benchmark]: TraceAbstraction took 860422.03ms. Allocated memory was 205.5MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 150.9MB in the beginning and 323.6MB in the end (delta: -172.7MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. [2022-02-20 04:20:59,296 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 0.21ms. Allocated memory is still 205.5MB. Free memory is still 164.8MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.25ms. Allocated memory is still 205.5MB. Free memory was 163.6MB in the beginning and 162.0MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.92ms. Allocated memory is still 205.5MB. Free memory was 162.0MB in the beginning and 161.0MB in the end (delta: 999.3kB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 266.72ms. Allocated memory is still 205.5MB. Free memory was 161.0MB in the beginning and 151.3MB in the end (delta: 9.7MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 860422.03ms. Allocated memory was 205.5MB in the beginning and 2.4GB in the end (delta: 2.2GB). Free memory was 150.9MB in the beginning and 323.6MB in the end (delta: -172.7MB). Peak memory consumption was 2.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 74]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 90 with TraceHistMax 10,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-34-3-31-3-33-3-35-3-33-3-33-3-31-3-31-3-31-3-29-3-29-3-29-3-29-3-29-3-29-3-29-3-27-3-27-3-27-3-27-3-27-3-27-3-25-3-25-3-24-3-24-3-24-3-24-3-23-3-23-3-21-3-21-3-21-3-21-3-16-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-12-3-10-3-10-3-10-3-10-3-10-3-10-3-6-3-6-3-4-3-4-2-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 90 with TraceHistMax 10,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-34-3-31-3-33-3-35-3-33-3-33-3-31-3-31-3-31-3-29-3-29-3-29-3-29-3-29-3-29-3-29-3-27-3-27-3-27-3-27-3-27-3-27-3-25-3-25-3-24-3-24-3-24-3-24-3-23-3-23-3-21-3-21-3-21-3-21-3-16-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-12-3-10-3-10-3-10-3-10-3-10-3-10-3-6-3-6-3-4-3-4-2-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 68]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 90 with TraceHistMax 10,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-34-3-31-3-33-3-35-3-33-3-33-3-31-3-31-3-31-3-29-3-29-3-29-3-29-3-29-3-29-3-29-3-27-3-27-3-27-3-27-3-27-3-27-3-25-3-25-3-24-3-24-3-24-3-24-3-23-3-23-3-21-3-21-3-21-3-21-3-16-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-12-3-10-3-10-3-10-3-10-3-10-3-10-3-6-3-6-3-4-3-4-2-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - TimeoutResultAtElement [Line: 67]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 90 with TraceHistMax 10,while InterpolatingTraceCheckCraig was constructing Craig interpolants,while PolyPacSimplificationTermWalker was simplifying a ∧-34-3-31-3-33-3-35-3-33-3-33-3-31-3-31-3-31-3-29-3-29-3-29-3-29-3-29-3-29-3-29-3-27-3-27-3-27-3-27-3-27-3-27-3-25-3-25-3-24-3-24-3-24-3-24-3-23-3-23-3-21-3-21-3-21-3-21-3-16-3-16-3-16-3-16-3-16-3-16-3-14-3-14-3-14-3-12-3-10-3-10-3-10-3-10-3-10-3-10-3-6-3-6-3-4-3-4-2-4-2-4-2-3-1 term,while PolyPacSimplificationTermWalker was simplifying 3 xjuncts wrt. a ATOM-1 context. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 860.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 9.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 370, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.4s InterpolantComputationTime, 1308 NumberOfCodeBlocks, 1277 NumberOfCodeBlocksAsserted, 43 NumberOfCheckSat, 1868 ConstructedInterpolants, 0 QuantifiedInterpolants, 6172 SizeOfPredicates, 19 NumberOfNonLiveVariables, 1667 ConjunctsInSsa, 112 ConjunctsInUnsatCore, 26 InterpolantComputations, 2 PerfectInterpolantSequences, 5368/6467 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown