/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 22:40:59,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 22:40:59,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 22:40:59,133 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 22:40:59,133 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 22:40:59,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 22:40:59,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 22:40:59,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 22:40:59,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 22:40:59,143 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 22:40:59,144 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 22:40:59,145 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-16 22:40:59,145 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-16 22:40:59,147 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-16 22:40:59,148 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-16 22:40:59,150 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-16 22:40:59,150 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-16 22:40:59,151 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-16 22:40:59,152 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-16 22:40:59,156 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-16 22:40:59,157 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-16 22:40:59,158 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-16 22:40:59,159 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-16 22:40:59,160 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-16 22:40:59,164 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-16 22:40:59,170 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-16 22:40:59,171 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-16 22:40:59,171 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-16 22:40:59,172 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-MCRwithoutDepranks-Lazy.epf [2022-03-16 22:40:59,193 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 22:40:59,194 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 22:40:59,194 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 22:40:59,194 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 22:40:59,195 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 22:40:59,195 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 22:40:59,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 22:40:59,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 22:40:59,195 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 22:40:59,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 22:40:59,196 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 22:40:59,197 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 22:40:59,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:40:59,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 22:40:59,198 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 22:40:59,198 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 22:40:59,198 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 22:40:59,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 22:40:59,199 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 22:40:59,199 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 22:40:59,199 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 22:40:59,199 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 22:40:59,199 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-03-16 22:40:59,199 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 22:40:59,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 22:40:59,393 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 22:40:59,395 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 22:40:59,395 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 22:40:59,396 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 22:40:59,397 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl [2022-03-16 22:40:59,397 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-bad/ring-nondet.wvr.bpl' [2022-03-16 22:40:59,425 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 22:40:59,426 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 22:40:59,427 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 22:40:59,427 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 22:40:59,427 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 22:40:59,437 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,442 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,447 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 22:40:59,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 22:40:59,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 22:40:59,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 22:40:59,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 22:40:59,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,466 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,468 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,469 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,469 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 22:40:59,470 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 22:40:59,470 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 22:40:59,470 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 22:40:59,471 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/1) ... [2022-03-16 22:40:59,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 22:40:59,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:40:59,497 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) [2022-03-16 22:40:59,499 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 [2022-03-16 22:40:59,520 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 22:40:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 22:40:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 22:40:59,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 22:40:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 22:40:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 22:40:59,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 22:40:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 22:40:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 22:40:59,521 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-16 22:40:59,521 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-16 22:40:59,521 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-16 22:40:59,522 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 22:40:59,567 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 22:40:59,569 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 22:40:59,663 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 22:40:59,686 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 22:40:59,687 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 22:40:59,688 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:40:59 BoogieIcfgContainer [2022-03-16 22:40:59,688 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 22:40:59,689 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 22:40:59,689 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 22:40:59,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 22:40:59,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 10:40:59" (1/2) ... [2022-03-16 22:40:59,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@562ca599 and model type ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 10:40:59, skipping insertion in model container [2022-03-16 22:40:59,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 10:40:59" (2/2) ... [2022-03-16 22:40:59,693 INFO L111 eAbstractionObserver]: Analyzing ICFG ring-nondet.wvr.bpl [2022-03-16 22:40:59,696 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 22:40:59,696 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 22:40:59,696 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 22:40:59,696 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 22:40:59,723 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-16 22:40:59,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 22:40:59,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:40:59,814 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) [2022-03-16 22:40:59,835 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 [2022-03-16 22:40:59,858 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 22:40:59,868 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 [2022-03-16 22:40:59,868 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-16 22:41:00,332 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1107 transitions and produced 1024 states. [2022-03-16 22:41:00,334 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:41:00,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:41:00,340 INFO L85 PathProgramCache]: Analyzing trace with hash -835772424, now seen corresponding path program 1 times [2022-03-16 22:41:00,346 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:41:00,346 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106012568] [2022-03-16 22:41:00,346 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:41:00,347 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:41:03,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:41:03,827 INFO L134 CoverageAnalysis]: Checked inductivity of 12840 backedges. 4270 proven. 7178 refuted. 0 times theorem prover too weak. 1392 trivial. 0 not checked. [2022-03-16 22:41:03,827 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:41:03,827 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106012568] [2022-03-16 22:41:03,828 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106012568] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:41:03,829 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005956855] [2022-03-16 22:41:03,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:41:03,829 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:03,829 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:41:03,831 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) [2022-03-16 22:41:03,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 22:41:04,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:41:04,065 INFO L263 TraceCheckSpWp]: Trace formula consists of 487 conjuncts, 28 conjunts are in the unsatisfiable core [2022-03-16 22:41:04,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:41:09,236 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,237 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,238 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,239 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,240 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,241 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,242 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,244 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,245 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,246 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,247 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,249 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,250 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,251 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,252 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 22:41:09,252 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,253 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,254 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:41:09,259 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 28 disjoint index pairs (out of 36 index pairs), introduced 8 new quantified variables, introduced 0 case distinctions, treesize of input 62 treesize of output 28 [2022-03-16 22:41:09,394 INFO L134 CoverageAnalysis]: Checked inductivity of 12840 backedges. 4272 proven. 7156 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-03-16 22:41:09,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:41:11,775 INFO L353 Elim1Store]: treesize reduction 312, result has 22.2 percent of original size [2022-03-16 22:41:11,775 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 296 treesize of output 292 [2022-03-16 22:41:11,787 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-16 22:41:13,963 INFO L134 CoverageAnalysis]: Checked inductivity of 12840 backedges. 4333 proven. 7095 refuted. 0 times theorem prover too weak. 1412 trivial. 0 not checked. [2022-03-16 22:41:13,964 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005956855] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:41:13,964 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:41:13,964 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 52 [2022-03-16 22:41:13,966 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638952088] [2022-03-16 22:41:13,967 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:41:13,974 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-03-16 22:41:13,974 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:41:14,006 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-03-16 22:41:14,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=2387, Unknown=0, NotChecked=0, Total=2756 [2022-03-16 22:41:14,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:14,013 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:41:14,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 4.7924528301886795) internal successors, (254), 52 states have internal predecessors, (254), 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) [2022-03-16 22:41:14,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:15,519 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1605 transitions and produced 1482 states. [2022-03-16 22:41:15,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:41:15,539 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 22:41:15,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-16 22:41:15,732 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:41:15,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:41:15,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1579938699, now seen corresponding path program 2 times [2022-03-16 22:41:15,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:41:15,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1228307127] [2022-03-16 22:41:15,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:41:15,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:41:17,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:41:17,983 INFO L134 CoverageAnalysis]: Checked inductivity of 22635 backedges. 6812 proven. 13995 refuted. 0 times theorem prover too weak. 1828 trivial. 0 not checked. [2022-03-16 22:41:17,984 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:41:17,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1228307127] [2022-03-16 22:41:17,984 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1228307127] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:41:17,984 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1580662296] [2022-03-16 22:41:17,984 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:41:17,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:17,985 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:41:17,988 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) [2022-03-16 22:41:18,007 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 22:41:18,289 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:41:18,289 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:41:18,318 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 60 conjunts are in the unsatisfiable core [2022-03-16 22:41:18,325 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:41:23,244 INFO L353 Elim1Store]: treesize reduction 322, result has 0.3 percent of original size [2022-03-16 22:41:23,245 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 60 treesize of output 28 [2022-03-16 22:41:23,823 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 22:41:23,906 INFO L134 CoverageAnalysis]: Checked inductivity of 22635 backedges. 0 proven. 20278 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2022-03-16 22:41:23,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:41:24,268 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 22:41:24,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-16 22:41:27,025 INFO L353 Elim1Store]: treesize reduction 312, result has 22.2 percent of original size [2022-03-16 22:41:27,026 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 226 treesize of output 260 [2022-03-16 22:41:27,033 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-16 22:41:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 22635 backedges. 63 proven. 20215 refuted. 0 times theorem prover too weak. 2357 trivial. 0 not checked. [2022-03-16 22:41:28,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1580662296] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:41:28,824 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:41:28,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 35, 35] total 83 [2022-03-16 22:41:28,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344365753] [2022-03-16 22:41:28,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:41:28,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 84 states [2022-03-16 22:41:28,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:41:28,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 84 interpolants. [2022-03-16 22:41:28,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=387, Invalid=6585, Unknown=0, NotChecked=0, Total=6972 [2022-03-16 22:41:28,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:28,828 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:41:28,828 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 84 states, 84 states have (on average 4.345238095238095) internal successors, (365), 83 states have internal predecessors, (365), 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) [2022-03-16 22:41:28,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:41:28,829 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:33,385 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2299 transitions and produced 2036 states. [2022-03-16 22:41:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:41:33,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:41:33,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-16 22:41:33,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:33,600 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:41:33,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:41:33,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1828679861, now seen corresponding path program 3 times [2022-03-16 22:41:33,600 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:41:33,600 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675577503] [2022-03-16 22:41:33,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:41:33,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:41:33,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:41:34,044 INFO L134 CoverageAnalysis]: Checked inductivity of 57587 backedges. 17018 proven. 36450 refuted. 0 times theorem prover too weak. 4119 trivial. 0 not checked. [2022-03-16 22:41:34,045 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:41:34,045 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675577503] [2022-03-16 22:41:34,045 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675577503] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:41:34,046 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [475295510] [2022-03-16 22:41:34,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 22:41:34,047 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:34,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:41:34,048 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) [2022-03-16 22:41:34,049 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 22:41:36,864 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 87 check-sat command(s) [2022-03-16 22:41:36,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:41:36,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 857 conjuncts, 29 conjunts are in the unsatisfiable core [2022-03-16 22:41:36,898 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:41:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 57587 backedges. 17018 proven. 36450 refuted. 0 times theorem prover too weak. 4119 trivial. 0 not checked. [2022-03-16 22:41:37,844 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:41:38,804 INFO L134 CoverageAnalysis]: Checked inductivity of 57587 backedges. 17018 proven. 36450 refuted. 0 times theorem prover too weak. 4119 trivial. 0 not checked. [2022-03-16 22:41:38,804 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [475295510] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:41:38,804 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:41:38,805 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 16, 16] total 18 [2022-03-16 22:41:38,805 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1748704502] [2022-03-16 22:41:38,805 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:41:38,806 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-03-16 22:41:38,806 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:41:38,806 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-03-16 22:41:38,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=172, Unknown=0, NotChecked=0, Total=342 [2022-03-16 22:41:38,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:38,806 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:41:38,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 11.368421052631579) internal successors, (216), 18 states have internal predecessors, (216), 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) [2022-03-16 22:41:38,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:41:38,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:41:38,807 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:41:39,270 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2949 transitions and produced 2546 states. [2022-03-16 22:41:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:41:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:41:39,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:41:39,292 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-16 22:41:39,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:39,472 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:41:39,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:41:39,472 INFO L85 PathProgramCache]: Analyzing trace with hash 963412179, now seen corresponding path program 4 times [2022-03-16 22:41:39,472 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:41:39,472 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594841855] [2022-03-16 22:41:39,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:41:39,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:41:50,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:41:52,292 INFO L134 CoverageAnalysis]: Checked inductivity of 90218 backedges. 38025 proven. 41651 refuted. 0 times theorem prover too weak. 10542 trivial. 0 not checked. [2022-03-16 22:41:52,292 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:41:52,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594841855] [2022-03-16 22:41:52,292 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594841855] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:41:52,292 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1915693181] [2022-03-16 22:41:52,292 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 22:41:52,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:41:52,293 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:41:52,294 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) [2022-03-16 22:41:52,294 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 22:41:53,717 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 22:41:53,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:41:53,848 INFO L263 TraceCheckSpWp]: Trace formula consists of 1093 conjuncts, 109 conjunts are in the unsatisfiable core [2022-03-16 22:41:53,856 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:42:15,931 INFO L353 Elim1Store]: treesize reduction 1232, result has 0.1 percent of original size [2022-03-16 22:42:15,931 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 15 select indices, 15 select index equivalence classes, 0 disjoint index pairs (out of 105 index pairs), introduced 15 new quantified variables, introduced 105 case distinctions, treesize of input 109 treesize of output 49 [2022-03-16 22:42:17,404 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 22:42:17,541 INFO L134 CoverageAnalysis]: Checked inductivity of 90218 backedges. 2 proven. 86805 refuted. 0 times theorem prover too weak. 3411 trivial. 0 not checked. [2022-03-16 22:42:17,541 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:42:18,264 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 22:42:18,264 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-16 22:42:28,771 INFO L353 Elim1Store]: treesize reduction 1222, result has 11.5 percent of original size [2022-03-16 22:42:28,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 670 treesize of output 580 [2022-03-16 22:42:28,792 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-16 22:42:50,753 INFO L134 CoverageAnalysis]: Checked inductivity of 90218 backedges. 132 proven. 86675 refuted. 0 times theorem prover too weak. 3411 trivial. 0 not checked. [2022-03-16 22:42:50,753 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1915693181] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:42:50,753 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:42:50,753 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 63, 63] total 148 [2022-03-16 22:42:50,753 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174757119] [2022-03-16 22:42:50,753 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:42:50,755 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-03-16 22:42:50,755 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:42:50,755 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-03-16 22:42:50,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=939, Invalid=21113, Unknown=0, NotChecked=0, Total=22052 [2022-03-16 22:42:50,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:42:50,761 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:42:50,762 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 4.295302013422819) internal successors, (640), 148 states have internal predecessors, (640), 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) [2022-03-16 22:42:50,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:42:50,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:42:50,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:42:50,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:43:02,168 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3373 transitions and produced 2879 states. [2022-03-16 22:43:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:43:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:43:02,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:43:02,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:43:02,194 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-16 22:43:02,369 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:43:02,369 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:43:02,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:43:02,370 INFO L85 PathProgramCache]: Analyzing trace with hash 2004325346, now seen corresponding path program 5 times [2022-03-16 22:43:02,370 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:43:02,370 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643191665] [2022-03-16 22:43:02,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:43:02,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:43:02,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:43:03,066 INFO L134 CoverageAnalysis]: Checked inductivity of 133004 backedges. 52935 proven. 73326 refuted. 0 times theorem prover too weak. 6743 trivial. 0 not checked. [2022-03-16 22:43:03,067 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:43:03,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643191665] [2022-03-16 22:43:03,067 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643191665] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:43:03,067 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776973115] [2022-03-16 22:43:03,067 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 22:43:03,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:43:03,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:43:03,068 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) [2022-03-16 22:43:03,069 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 22:43:24,073 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 129 check-sat command(s) [2022-03-16 22:43:24,074 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:43:24,159 INFO L263 TraceCheckSpWp]: Trace formula consists of 1299 conjuncts, 38 conjunts are in the unsatisfiable core [2022-03-16 22:43:24,171 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:43:25,526 INFO L134 CoverageAnalysis]: Checked inductivity of 133004 backedges. 52908 proven. 73326 refuted. 0 times theorem prover too weak. 6770 trivial. 0 not checked. [2022-03-16 22:43:25,527 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:43:26,986 INFO L134 CoverageAnalysis]: Checked inductivity of 133004 backedges. 52908 proven. 73326 refuted. 0 times theorem prover too weak. 6770 trivial. 0 not checked. [2022-03-16 22:43:26,987 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [776973115] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:43:26,987 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:43:26,987 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 20, 20] total 24 [2022-03-16 22:43:26,987 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452173302] [2022-03-16 22:43:26,987 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:43:26,988 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-03-16 22:43:26,988 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:43:26,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-03-16 22:43:26,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=297, Invalid=303, Unknown=0, NotChecked=0, Total=600 [2022-03-16 22:43:26,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:43:26,989 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:43:26,989 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 10.64) internal successors, (266), 24 states have internal predecessors, (266), 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) [2022-03-16 22:43:26,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:43:26,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:43:26,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:43:26,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:43:26,989 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:43:27,568 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3908 transitions and produced 3304 states. [2022-03-16 22:43:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:43:27,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:43:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:43:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:43:27,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:43:27,596 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 22:43:27,771 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:43:27,772 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:43:27,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:43:27,772 INFO L85 PathProgramCache]: Analyzing trace with hash -2138992523, now seen corresponding path program 6 times [2022-03-16 22:43:27,772 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:43:27,772 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427419102] [2022-03-16 22:43:27,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:43:27,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:44:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:44:09,600 INFO L134 CoverageAnalysis]: Checked inductivity of 172209 backedges. 81205 proven. 61769 refuted. 0 times theorem prover too weak. 29235 trivial. 0 not checked. [2022-03-16 22:44:09,601 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:44:09,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427419102] [2022-03-16 22:44:09,601 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427419102] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:44:09,601 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537621337] [2022-03-16 22:44:09,601 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 22:44:09,601 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:44:09,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:44:09,602 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) [2022-03-16 22:44:09,605 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 22:44:24,333 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 146 check-sat command(s) [2022-03-16 22:44:24,333 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:44:24,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 73 conjunts are in the unsatisfiable core [2022-03-16 22:44:24,405 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:45:19,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,655 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,659 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,660 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,662 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,663 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,664 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,665 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,669 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,671 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,675 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,676 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,677 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,679 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,680 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,683 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,686 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,687 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,688 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,689 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,690 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,691 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,692 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,700 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,701 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,702 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,703 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,704 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,705 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,707 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,709 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,710 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,711 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,712 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,713 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,714 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,715 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,716 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,717 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,718 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,719 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,720 INFO L173 IndexEqualityManager]: detected equality via solver [2022-03-16 22:45:19,720 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,721 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,722 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,723 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,724 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,725 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,726 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,728 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,730 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,737 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,738 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,741 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,742 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,743 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,755 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,756 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,757 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,758 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,783 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,784 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,785 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,786 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,787 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,788 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,789 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,790 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,807 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,808 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,811 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,812 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,813 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,814 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,815 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,816 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,817 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,819 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,820 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,821 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,822 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,825 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,827 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,828 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,829 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,831 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,832 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,834 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,835 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-03-16 22:45:19,836 INFO L244 Elim1Store]: Index analysis took 181 ms [2022-03-16 22:45:19,838 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 253 disjoint index pairs (out of 276 index pairs), introduced 23 new quantified variables, introduced 0 case distinctions, treesize of input 167 treesize of output 73 [2022-03-16 22:45:20,330 INFO L134 CoverageAnalysis]: Checked inductivity of 172209 backedges. 81207 proven. 61755 refuted. 0 times theorem prover too weak. 29247 trivial. 0 not checked. [2022-03-16 22:45:20,330 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:45:52,158 INFO L353 Elim1Store]: treesize reduction 2982, result has 7.4 percent of original size [2022-03-16 22:45:52,159 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 24 select indices, 24 select index equivalence classes, 0 disjoint index pairs (out of 276 index pairs), introduced 24 new quantified variables, introduced 276 case distinctions, treesize of input 1682 treesize of output 1192 [2022-03-16 22:45:52,184 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-16 22:47:11,701 INFO L134 CoverageAnalysis]: Checked inductivity of 172209 backedges. 81537 proven. 61425 refuted. 0 times theorem prover too weak. 29247 trivial. 0 not checked. [2022-03-16 22:47:11,701 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537621337] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:47:11,701 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:47:11,701 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 49, 49] total 142 [2022-03-16 22:47:11,701 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193263154] [2022-03-16 22:47:11,702 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:47:11,703 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-03-16 22:47:11,703 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:47:11,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-03-16 22:47:11,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2175, Invalid=18131, Unknown=0, NotChecked=0, Total=20306 [2022-03-16 22:47:11,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:47:11,707 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:47:11,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 4.5874125874125875) internal successors, (656), 142 states have internal predecessors, (656), 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) [2022-03-16 22:47:11,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:47:11,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:47:11,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:47:11,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:47:11,707 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:47:11,708 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:47:20,519 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4408 transitions and produced 3631 states. [2022-03-16 22:47:20,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:47:20,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:47:20,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:47:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:47:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:47:20,520 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 22:47:20,550 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-03-16 22:47:20,722 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:47:20,723 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:47:20,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:47:20,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1922736536, now seen corresponding path program 7 times [2022-03-16 22:47:20,723 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:47:20,723 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837196546] [2022-03-16 22:47:20,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:47:20,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:48:05,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:48:07,221 INFO L134 CoverageAnalysis]: Checked inductivity of 208037 backedges. 94978 proven. 82845 refuted. 0 times theorem prover too weak. 30214 trivial. 0 not checked. [2022-03-16 22:48:07,221 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:48:07,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837196546] [2022-03-16 22:48:07,221 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837196546] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:48:07,221 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [415584817] [2022-03-16 22:48:07,221 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 22:48:07,221 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:48:07,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:48:07,222 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) [2022-03-16 22:48:07,223 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 22:48:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:48:09,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 1585 conjuncts, 158 conjunts are in the unsatisfiable core [2022-03-16 22:48:09,502 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:49:18,179 INFO L353 Elim1Store]: treesize reduction 2730, result has 0.0 percent of original size [2022-03-16 22:49:18,180 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 158 treesize of output 70 [2022-03-16 22:49:21,072 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-03-16 22:49:21,296 INFO L134 CoverageAnalysis]: Checked inductivity of 208037 backedges. 0 proven. 202639 refuted. 0 times theorem prover too weak. 5398 trivial. 0 not checked. [2022-03-16 22:49:21,297 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:49:22,214 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-03-16 22:49:22,215 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 20 [2022-03-16 22:49:55,681 INFO L353 Elim1Store]: treesize reduction 2720, result has 7.8 percent of original size [2022-03-16 22:49:55,682 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 23 select indices, 23 select index equivalence classes, 0 disjoint index pairs (out of 253 index pairs), introduced 23 new quantified variables, introduced 253 case distinctions, treesize of input 1822 treesize of output 1260 [2022-03-16 22:49:55,705 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 61 treesize of output 59 [2022-03-16 22:51:50,635 INFO L134 CoverageAnalysis]: Checked inductivity of 208037 backedges. 525 proven. 202114 refuted. 0 times theorem prover too weak. 5398 trivial. 0 not checked. [2022-03-16 22:51:50,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [415584817] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:51:50,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:51:50,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 91, 91] total 211 [2022-03-16 22:51:50,636 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406203874] [2022-03-16 22:51:50,636 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:51:50,638 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 212 states [2022-03-16 22:51:50,638 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:51:50,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 212 interpolants. [2022-03-16 22:51:50,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1799, Invalid=42933, Unknown=0, NotChecked=0, Total=44732 [2022-03-16 22:51:50,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:51:50,642 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:51:50,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 212 states, 212 states have (on average 4.264150943396227) internal successors, (904), 211 states have internal predecessors, (904), 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) [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 22:51:50,643 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:52:21,151 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5126 transitions and produced 4207 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 22:52:21,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-16 22:52:21,187 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-03-16 22:52:21,353 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-03-16 22:52:21,353 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:52:21,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:52:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash 561979794, now seen corresponding path program 8 times [2022-03-16 22:52:21,354 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:52:21,354 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038835776] [2022-03-16 22:52:21,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:52:21,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 22:52:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 22:52:22,480 INFO L134 CoverageAnalysis]: Checked inductivity of 302093 backedges. 108697 proven. 182967 refuted. 0 times theorem prover too weak. 10429 trivial. 0 not checked. [2022-03-16 22:52:22,481 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 22:52:22,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038835776] [2022-03-16 22:52:22,481 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038835776] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 22:52:22,481 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22642919] [2022-03-16 22:52:22,481 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 22:52:22,481 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:52:22,481 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 22:52:22,482 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) [2022-03-16 22:52:22,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 22:52:22,985 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 22:52:22,985 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 22:52:23,016 INFO L263 TraceCheckSpWp]: Trace formula consists of 1888 conjuncts, 58 conjunts are in the unsatisfiable core [2022-03-16 22:52:23,028 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 22:52:25,147 INFO L134 CoverageAnalysis]: Checked inductivity of 302093 backedges. 108697 proven. 182967 refuted. 0 times theorem prover too weak. 10429 trivial. 0 not checked. [2022-03-16 22:52:25,147 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 22:52:27,381 INFO L134 CoverageAnalysis]: Checked inductivity of 302093 backedges. 108697 proven. 182967 refuted. 0 times theorem prover too weak. 10429 trivial. 0 not checked. [2022-03-16 22:52:27,381 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22642919] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 22:52:27,381 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 22:52:27,381 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 30, 30] total 31 [2022-03-16 22:52:27,382 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975309143] [2022-03-16 22:52:27,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 22:52:27,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-03-16 22:52:27,383 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 22:52:27,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-03-16 22:52:27,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=496, Invalid=496, Unknown=0, NotChecked=0, Total=992 [2022-03-16 22:52:27,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:52:27,383 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 22:52:27,384 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 11.46875) internal successors, (367), 31 states have internal predecessors, (367), 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) [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 60 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 101 states. [2022-03-16 22:52:27,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 22:52:28,250 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 5661 transitions and produced 4632 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2022-03-16 22:52:28,250 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2022-03-16 22:52:28,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-16 22:52:28,275 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 22:52:28,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 22:52:28,451 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-16 22:52:28,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 22:52:28,452 INFO L85 PathProgramCache]: Analyzing trace with hash -1476110441, now seen corresponding path program 9 times [2022-03-16 22:52:28,452 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 22:52:28,452 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726431180] [2022-03-16 22:52:28,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 22:52:28,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms Received shutdown request... [2022-03-16 22:54:15,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2022-03-16 22:54:15,261 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 [2022-03-16 22:54:15,261 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 [2022-03-16 22:54:15,349 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-16 22:54:15,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-03-16 22:54:15,349 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1519 with TraceHistMax 596,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1726431180] and IpTcStrategyModuleZ3 [2043746828]. [2022-03-16 22:54:15,350 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-16 22:54:15,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-16 22:54:15,351 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-16 22:54:15,354 INFO L732 BasicCegarLoop]: Path program histogram: [9] [2022-03-16 22:54:15,356 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 22:54:15,356 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 22:54:15,357 INFO L202 PluginConnector]: Adding new model ring-nondet.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 10:54:15 BasicIcfg [2022-03-16 22:54:15,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 22:54:15,357 INFO L158 Benchmark]: Toolchain (without parser) took 795931.31ms. Allocated memory was 197.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 161.7MB in the beginning and 565.3MB in the end (delta: -403.6MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 22:54:15,358 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 197.1MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 22:54:15,358 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.48ms. Allocated memory is still 197.1MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:54:15,358 INFO L158 Benchmark]: Boogie Preprocessor took 20.66ms. Allocated memory is still 197.1MB. Free memory was 160.0MB in the beginning and 159.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 22:54:15,358 INFO L158 Benchmark]: RCFGBuilder took 218.23ms. Allocated memory is still 197.1MB. Free memory was 159.0MB in the beginning and 147.9MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-03-16 22:54:15,358 INFO L158 Benchmark]: TraceAbstraction took 795668.05ms. Allocated memory was 197.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 147.5MB in the beginning and 565.3MB in the end (delta: -417.8MB). Peak memory consumption was 1.3GB. Max. memory is 8.0GB. [2022-03-16 22:54:15,359 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 0.09ms. Allocated memory is still 197.1MB. Free memory is still 162.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 21.48ms. Allocated memory is still 197.1MB. Free memory was 161.5MB in the beginning and 160.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.66ms. Allocated memory is still 197.1MB. Free memory was 160.0MB in the beginning and 159.0MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 218.23ms. Allocated memory is still 197.1MB. Free memory was 159.0MB in the beginning and 147.9MB in the end (delta: 11.1MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 795668.05ms. Allocated memory was 197.1MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 147.5MB in the beginning and 565.3MB in the end (delta: -417.8MB). Peak memory consumption was 1.3GB. 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: 102]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1519 with TraceHistMax 596,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1726431180] and IpTcStrategyModuleZ3 [2043746828]. - TimeoutResultAtElement [Line: 95]: 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 1519 with TraceHistMax 596,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1726431180] and IpTcStrategyModuleZ3 [2043746828]. - TimeoutResultAtElement [Line: 95]: 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 1519 with TraceHistMax 596,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1726431180] and IpTcStrategyModuleZ3 [2043746828]. - TimeoutResultAtElement [Line: 96]: 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 1519 with TraceHistMax 596,while AutomatonFreeRefinementEngine was Timeout during feasibility check between IpTcStrategyModuleSmtInterpolCraig [1726431180] and IpTcStrategyModuleZ3 [2043746828]. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 53 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 795.6s, OverallIterations: 9, TraceHistogramMax: 0, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 59.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 367, 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: 0.9s SsaConstructionTime, 142.7s SatisfiabilityAnalysisTime, 483.5s InterpolantComputationTime, 13406 NumberOfCodeBlocks, 13296 NumberOfCodeBlocksAsserted, 377 NumberOfCheckSat, 20085 ConstructedInterpolants, 731 QuantifiedInterpolants, 440320 SizeOfPredicates, 59 NumberOfNonLiveVariables, 9182 ConjunctsInSsa, 553 ConjunctsInUnsatCore, 24 InterpolantComputations, 0 PerfectInterpolantSequences, 1154045/2995869 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